New Engine and air fuel ratio.

1
Hi group, its been about two weeks now that I've been running my Steven Muller built wbxer. In short I gotta say it's a smooth torque monster!
On Steve's advice , I installed an air fuel ratio meter to keep an eye on possible too lean mixtures and pinging. My question to the group is , has anyone else got one of these meters and if so what readings do you get from them? My system seems to keep the mixture at an optimal 14.7to 1 at all times, apart from fuel deceleration shut off when it goes to 22 to 1. Having watched the video on the campervan culure site on this very topic I relised that my system behaves differently. Perhaps that system is the Euro only Digijet? Thanks in advance for any thoughts , advice or opinions .
2
Hi  Eddie, The guy who does that lamda video is running a DJ, a new create engine in fact. In what way does yours differ? Greg E

From: eddie <bergodaz@ozemail.com.au>
To: Syncro_T3_Australia@yahoogroups.com
Sent: Saturday, 16 June 2012 5:08 PM
Subject: [Syncro_T3_Australia] New Engine and air fuel ratio.

 
Hi group, its been about two weeks now that I've been running my Steven Muller built wbxer. In short I gotta say it's a smooth torque monster!
On Steve's advice , I installed an air fuel ratio meter to keep an eye on possible too lean mixtures and pinging. My question to the group is , has anyone else got one of these meters and if so what readings do you get from them? My system seems to keep the mixture at an optimal 14.7to 1 at all times, apart from fuel deceleration shut off when it goes to 22 to 1. Having watched the video on the campervan culure site on this very topic I relised that my system behaves differently. Perhaps that system is the Euro only Digijet? Thanks in advance for any thoughts , advice or opinions .



3
Greg, mine doesn't get richer as his does when I open up the throttle. Just seems to maintain a constant 14 to 15 AFR(or lambda 1).
--- In Syncro_T3_Australia@yahoogroups.com, greg esposito <gregespo73@...> wrote:
>
> Hi Eddie, The guy who does that lamda video is running a DJ, a new create engine in fact. In what way does yours differ? Greg E
>
>
>
> ________________________________
> From: eddie <bergodaz@...>
> To: Syncro_T3_Australia@yahoogroups.com
> Sent: Saturday, 16 June 2012 5:08 PM
> Subject: [Syncro_T3_Australia] New Engine and air fuel ratio.
>
>
> Â
>
> Hi group, its been about two weeks now that I've been running my Steven Muller built wbxer. In short I gotta say it's a smooth torque monster!
> On Steve's advice , I installed an air fuel ratio meter to keep an eye on possible too lean mixtures and pinging. My question to the group is , has anyone else got one of these meters and if so what readings do you get from them? My system seems to keep the mixture at an optimal 14.7to 1 at all times, apart from fuel deceleration shut off when it goes to 22 to 1. Having watched the video on the campervan culure site on this very topic I relised that my system behaves differently. Perhaps that system is the Euro only Digijet? Thanks in advance for any thoughts , advice or opinions .
>
4
While I can't claim to know the mapping of the DJ or the MV, what you say makes sense in that the MV was set up as a low emission engine. Greg E

From: eddie <bergodaz@ozemail.com.au>
To: Syncro_T3_Australia@yahoogroups.com
Sent: Saturday, 16 June 2012 9:19 PM
Subject: [Syncro_T3_Australia] Re: New Engine and air fuel ratio.

 
Greg, mine doesn't get richer as his does when I open up the throttle. Just seems to maintain a constant 14 to 15 AFR(or lambda 1).
--- In mailto:Syncro_T3_Australia%40yahoogroups.com, greg esposito <gregespo73@...> wrote:
>
> Hi  Eddie, The guy who does that lamda video is running a DJ, a new create engine in fact. In what way does yours differ? Greg E
>
>
>
> ________________________________
> From: eddie <bergodaz@...>
> To: mailto:Syncro_T3_Australia%40yahoogroups.com
> Sent: Saturday, 16 June 2012 5:08 PM
> Subject: [Syncro_T3_Australia] New Engine and air fuel ratio.
>
>
>  
>
> Hi group, its been about two weeks now that I've been running my Steven Muller built wbxer. In short I gotta say it's a smooth torque monster!
> On Steve's advice , I installed an air fuel ratio meter to keep an eye on possible too lean mixtures and pinging. My question to the group is , has anyone else got one of these meters and if so what readings do you get from them? My system seems to keep the mixture at an optimal 14.7to 1 at all times, apart from fuel deceleration shut off when it goes to 22 to 1. Having watched the video on the campervan culure site on this very topic I relised that my system behaves differently. Perhaps that system is the Euro only Digijet? Thanks in advance for any thoughts , advice or opinions .
>



5
Eddie, are you running a stock cam?

From: greg esposito <gregespo73@yahoo.com>
To: "Syncro_T3_Australia@yahoogroups.com" <Syncro_T3_Australia@yahoogroups.com>
Sent: Saturday, 16 June 2012 9:52 PM
Subject: Re: [Syncro_T3_Australia] Re: New Engine and air fuel ratio.

 
While I can't claim to know the mapping of the DJ or the MV, what you say makes sense in that the MV was set up as a low emission engine. Greg E

From: eddie <bergodaz@ozemail.com.au>
To: Syncro_T3_Australia@yahoogroups.com
Sent: Saturday, 16 June 2012 9:19 PM
Subject: [Syncro_T3_Australia] Re: New Engine and air fuel ratio.

 
Greg, mine doesn't get richer as his does when I open up the throttle. Just seems to maintain a constant 14 to 15 AFR(or lambda 1).
--- In mailto:Syncro_T3_Australia%40yahoogroups.com, greg esposito <gregespo73@...> wrote:
>
> Hi  Eddie, The guy who does that lamda video is running a DJ, a new create engine in fact. In what way does yours differ? Greg E
>
>
>
> ________________________________
> From: eddie <bergodaz@...>
> To: mailto:Syncro_T3_Australia%40yahoogroups.com
> Sent: Saturday, 16 June 2012 5:08 PM
> Subject: [Syncro_T3_Australia] New Engine and air fuel ratio.
>
>
>  
>
> Hi group, its been about two weeks now that I've been running my Steven Muller built wbxer. In short I gotta say it's a smooth torque monster!
> On Steve's advice , I installed an air fuel ratio meter to keep an eye on possible too lean mixtures and pinging. My question to the group is , has anyone else got one of these meters and if so what readings do you get from them? My system seems to keep the mixture at an optimal 14.7to 1 at all times, apart from fuel deceleration shut off when it goes to 22 to 1. Having watched the video on the campervan culure site on this very topic I relised that my system behaves differently. Perhaps that system is the Euro only Digijet? Thanks in advance for any thoughts , advice or opinions .
>





6
Greg, the camshaft I think is a CB prformance cam (have to check for exact model) along with CB rockers & assemblies and DJ pistons. Judging from the info I can gather online, it seems that MV's are made to run at that "optimum AFR". The gauge I have has the option of using it's own o2 sensor to send info to the ECU in place of the stock one , so I'll give that a go tommorow & see how it goes.

--- In Syncro_T3_Australia@yahoogroups.com, greg esposito <gregespo73@...> wrote:
>
> Eddie, are you running a stock cam?
>
>
>
> ________________________________
> From: greg esposito <gregespo73@...>
> To: "Syncro_T3_Australia@yahoogroups.com" <Syncro_T3_Australia@yahoogroups.com>
> Sent: Saturday, 16 June 2012 9:52 PM
> Subject: Re: [Syncro_T3_Australia] Re: New Engine and air fuel ratio.
>
>
>
> Â
>
> While I can't claim to know the mapping of the DJ or the MV, what you say makes sense in that the MV was set up as a low emission engine. Greg E
>
>
> ________________________________
> From: eddie <bergodaz@...>
> To: Syncro_T3_Australia@yahoogroups.com
> Sent: Saturday, 16 June 2012 9:19 PM
> Subject: [Syncro_T3_Australia] Re: New Engine and air fuel ratio.
>
>
> Â
> Greg, mine doesn't get richer as his does when I open up the throttle. Just seems to maintain a constant 14 to 15 AFR(or lambda 1).
> --- In mailto:Syncro_T3_Australia%40yahoogroups.com, greg esposito <gregespo73@> wrote:
> >
> > Hi Eddie, The guy who does that lamda video is running a DJ, a new create engine in fact. In what way does yours differ? Greg E
> >
> >
> >
> > ________________________________
> > From: eddie <bergodaz@>
> > To: mailto:Syncro_T3_Australia%40yahoogroups.com
> > Sent: Saturday, 16 June 2012 5:08 PM
> > Subject: [Syncro_T3_Australia] New Engine and air fuel ratio.
> >
> >
> > ÂÂ
> >
> > Hi group, its been about two weeks now that I've been running my Steven Muller built wbxer. In short I gotta say it's a smooth torque monster!
> > On Steve's advice , I installed an air fuel ratio meter to keep an eye on possible too lean mixtures and pinging. My question to the group is , has anyone else got one of these meters and if so what readings do you get from them? My system seems to keep the mixture at an optimal 14.7to 1 at all times, apart from fuel deceleration shut off when it goes to 22 to 1. Having watched the video on the campervan culure site on this very topic I relised that my system behaves differently. Perhaps that system is the Euro only Digijet? Thanks in advance for any thoughts , advice or opinions .
> >
>
7
DJ engines do not have an O2 sensor.



> eddie <bergodaz@ozemail.com.au> wrote:
>
> Greg, the camshaft I think is a CB prformance cam (have to check for
> exact model) along with CB rockers & assemblies and DJ pistons. Judging
> from the info I can gather online, it seems that MV's are made to run at
> that "optimum AFR". The gauge I have has the option of using it's own o2
> sensor to send info to the ECU in place of the stock one , so I'll give
> that a go tommorow & see how it goes.
>
> --- In Syncro_T3_Australia@yahoogroups.com, greg esposito
> <gregespo73@...> wrote:
> >
> > Eddie, are you running a stock cam?
> >
> >
> >
> > ________________________________
> > From: greg esposito <gregespo73@...>
> > To: "Syncro_T3_Australia@yahoogroups.com"
> <Syncro_T3_Australia@yahoogroups.com>
> > Sent: Saturday, 16 June 2012 9:52 PM
> > Subject: Re: [Syncro_T3_Australia] Re: New Engine and air fuel ratio.
> >
> >
> >
> > ����
> >
> > While I can't claim to know the mapping of the DJ or the MV, what you
> say makes sense in that the MV was set up as a low emission engine. Greg
> E
> >
> >
> > ________________________________
> > From: eddie <bergodaz@...>
> > To: Syncro_T3_Australia@yahoogroups.com
> > Sent: Saturday, 16 June 2012 9:19 PM
> > Subject: [Syncro_T3_Australia] Re: New Engine and air fuel ratio.
> >
> >
> > ����
> > Greg, mine doesn't get richer as his does when I open up the throttle.
> Just seems to maintain a constant 14 to 15 AFR(or lambda 1).
> > --- In mailto:Syncro_T3_Australia%40yahoogroups.com, greg esposito
> <gregespo73@> wrote:
> > >
> > > Hi��������� Eddie, The guy who does that lamda video is running a DJ, a
> new create engine in fact. In what way does yours differ? Greg E
> > >
> > >
> > >
> > > ________________________________
> > > From: eddie <bergodaz@>
> > > To: mailto:Syncro_T3_Australia%40yahoogroups.com
> > > Sent: Saturday, 16 June 2012 5:08 PM
> > > Subject: [Syncro_T3_Australia] New Engine and air fuel ratio.
> > >
> > >
> > > ���������
> > >
> > > Hi group, its been about two weeks now that I've been running my
> Steven Muller built wbxer. In short I gotta say it's a smooth torque
> monster!
> > > On Steve's advice , I installed an air fuel ratio meter to keep an
> eye on possible too lean mixtures and pinging. My question to the group
> is , has anyone else got one of these meters and if so what readings do
> you get from them? My system seems to keep the mixture at an optimal
> 14.7to 1 at all times, apart from fuel deceleration shut off when it
> goes to 22 to 1. Having watched the video on the campervan culure site
> on this very topic I relised that my system behaves differently. Perhaps
> that system is the Euro only Digijet? Thanks in advance for any
> thoughts , advice or opinions .
> > >
> >
8
Hi Eddie, I have got a 2280 cb camshaft ready to go in when I get time to do my rebuild. I am guessing he would have used a 2251 with ratio rockers (1.25?). Mines a bit of a gamble, will probably have a lumpy idle. Re the injection, the mv is so flat on accel that what your finding out all makes sense. Would love to get a complete dj digijet set up. The dj has no O2 or cat convertor, but does have a vac advance on the disy.I am thinking with this rebuild I am doing, going to 2.4l and high compression that the efi is just going to hold it back. I don't think it matters which O2 sensor you use it is all about what the ecu does with that input that matters. If you think back to carburator days the good performing carbs had accelerator pumps that would inject extra fuel as your pedal went down. Modern fuel injection will enrich, gradually tapering off till you get back to "cruise". What I might try is to "adjust" the spring on the afm to richen up the delivery to suit the increased capacity or hunt for injectors with slightly larger fuel delivery. This still won't give the kick in the pants we want. Greg E

From: eddie <bergodaz@ozemail.com.au>
To: Syncro_T3_Australia@yahoogroups.com
Sent: Saturday, 16 June 2012 10:17 PM
Subject: [Syncro_T3_Australia] Re: New Engine and air fuel ratio.

 
Greg, the camshaft I think is a CB prformance cam (have to check for exact model) along with CB rockers & assemblies and DJ pistons. Judging from the info I can gather online, it seems that MV's are made to run at that "optimum AFR". The gauge I have has the option of using it's own o2 sensor to send info to the ECU in place of the stock one , so I'll give that a go tommorow & see how it goes.

--- In mailto:Syncro_T3_Australia%40yahoogroups.com, greg esposito <gregespo73@...> wrote:
>
> Eddie, are you running a stock cam?
>
>
>
> ________________________________
> From: greg esposito <gregespo73@...>
> To: "mailto:Syncro_T3_Australia%40yahoogroups.com" <mailto:Syncro_T3_Australia%40yahoogroups.com>
> Sent: Saturday, 16 June 2012 9:52 PM
> Subject: Re: [Syncro_T3_Australia] Re: New Engine and air fuel ratio.
>
>
>
>  
>
> While I can't claim to know the mapping of the DJ or the MV, what you say makes sense in that the MV was set up as a low emission engine. Greg E
>
>
> ________________________________
> From: eddie <bergodaz@...>
> To: mailto:Syncro_T3_Australia%40yahoogroups.com
> Sent: Saturday, 16 June 2012 9:19 PM
> Subject: [Syncro_T3_Australia] Re: New Engine and air fuel ratio.
>
>
>  
> Greg, mine doesn't get richer as his does when I open up the throttle. Just seems to maintain a constant 14 to 15 AFR(or lambda 1).
> --- In mailto:Syncro_T3_Australia%40yahoogroups.com, greg esposito <gregespo73@> wrote:
> >
> > Hi  Eddie, The guy who does that lamda video is running a DJ, a new create engine in fact. In what way does yours differ? Greg E
> >
> >
> >
> > ________________________________
> > From: eddie <bergodaz@>
> > To: mailto:Syncro_T3_Australia%40yahoogroups.com
> > Sent: Saturday, 16 June 2012 5:08 PM
> > Subject: [Syncro_T3_Australia] New Engine and air fuel ratio.
> >
> >
> >  
> >
> > Hi group, its been about two weeks now that I've been running my Steven Muller built wbxer. In short I gotta say it's a smooth torque monster!
> > On Steve's advice , I installed an air fuel ratio meter to keep an eye on possible too lean mixtures and pinging. My question to the group is , has anyone else got one of these meters and if so what readings do you get from them? My system seems to keep the mixture at an optimal 14.7to 1 at all times, apart from fuel deceleration shut off when it goes to 22 to 1. Having watched the video on the campervan culure site on this very topic I relised that my system behaves differently. Perhaps that system is the Euro only Digijet? Thanks in advance for any thoughts , advice or opinions .
> >
>



9
Hey Greg, done the spring in the AFM already. Richens up the mixture breifly but then I guess the 02 sensor combines with the ECU to bring things back into spec. Makes sense what Phill says that the DJ system has no 02 sensor. I think you're spot on in saying that the system is holding the engine back, cause I feel the my engine has alot more in it waiting to come out. Steve Muller hinted at some sort of impedence thingy connected to the temp sender to alter it's signal. Or alternately is the DJ system in the Euro buses the same or similar to the pre 86 1.9litre vans and can they be adapted to run a 2.1? I know they were way more tuneable and I've got an 85 parts van sitting in the shed. Eddie.

--- In Syncro_T3_Australia@yahoogroups.com, greg esposito <gregespo73@...> wrote:
>
> Hi Eddie, I have got a 2280 cb camshaft ready to go in when I get time to do my rebuild. I am guessing he would have used a 2251 with ratio rockers (1.25?). Mines a bit of a gamble, will probably have a lumpy idle. Re the injection, the mv is so flat on accel that what your finding out all makes sense. Would love to get a complete dj digijet set up. The dj has no O2 or cat convertor, but does have a vac advance on the disy.I am thinking with this rebuild I am doing, going to 2.4l and high compression that the efi is just going to hold it back. I don't think it matters which O2 sensor you use it is all about what the ecu does with that input that matters. If you think back to carburator days the good performing carbs had accelerator pumps that would inject extra fuel as your pedal went down. Modern fuel injection will enrich, gradually tapering off till you get back to "cruise". What I might try is to "adjust" the spring on the afm to richen up the
> delivery to suit the increased capacity or hunt for injectors with slightly larger fuel delivery. This still won't give the kick in the pants we want. Greg E
>
>
>
> ________________________________
> From: eddie <bergodaz@...>
> To: Syncro_T3_Australia@yahoogroups.com
> Sent: Saturday, 16 June 2012 10:17 PM
> Subject: [Syncro_T3_Australia] Re: New Engine and air fuel ratio.
>
>
>
> Â
>
> Greg, the camshaft I think is a CB prformance cam (have to check for exact model) along with CB rockers & assemblies and DJ pistons. Judging from the info I can gather online, it seems that MV's are made to run at that "optimum AFR". The gauge I have has the option of using it's own o2 sensor to send info to the ECU in place of the stock one , so I'll give that a go tommorow & see how it goes.
>
> --- In mailto:Syncro_T3_Australia%40yahoogroups.com, greg esposito <gregespo73@> wrote:
> >
> > Eddie, are you running a stock cam?
> >
> >
> >
> > ________________________________
> > From: greg esposito <gregespo73@>
> > To: "mailto:Syncro_T3_Australia%40yahoogroups.com" <mailto:Syncro_T3_Australia%40yahoogroups.com>
> > Sent: Saturday, 16 June 2012 9:52 PM
> > Subject: Re: [Syncro_T3_Australia] Re: New Engine and air fuel ratio.
> >
> >
> >
> > ÂÂ
> >
> > While I can't claim to know the mapping of the DJ or the MV, what you say makes sense in that the MV was set up as a low emission engine. Greg E
> >
> >
> > ________________________________
> > From: eddie <bergodaz@>
> > To: mailto:Syncro_T3_Australia%40yahoogroups.com
> > Sent: Saturday, 16 June 2012 9:19 PM
> > Subject: [Syncro_T3_Australia] Re: New Engine and air fuel ratio.
> >
> >
> > ÂÂ
> > Greg, mine doesn't get richer as his does when I open up the throttle. Just seems to maintain a constant 14 to 15 AFR(or lambda 1).
> > --- In mailto:Syncro_T3_Australia%40yahoogroups.com, greg esposito <gregespo73@> wrote:
> > >
> > > Hi Eddie, The guy who does that lamda video is running a DJ, a new create engine in fact. In what way does yours differ? Greg E
> > >
> > >
> > >
> > > ________________________________
> > > From: eddie <bergodaz@>
> > > To: mailto:Syncro_T3_Australia%40yahoogroups.com
> > > Sent: Saturday, 16 June 2012 5:08 PM
> > > Subject: [Syncro_T3_Australia] New Engine and air fuel ratio.
> > >
> > >
> > > ÂÂÂ
> > >
> > > Hi group, its been about two weeks now that I've been running my Steven Muller built wbxer. In short I gotta say it's a smooth torque monster!
> > > On Steve's advice , I installed an air fuel ratio meter to keep an eye on possible too lean mixtures and pinging. My question to the group is , has anyone else got one of these meters and if so what readings do you get from them? My system seems to keep the mixture at an optimal 14.7to 1 at all times, apart from fuel deceleration shut off when it goes to 22 to 1. Having watched the video on the campervan culure site on this very topic I relised that my system behaves differently. Perhaps that system is the Euro only Digijet? Thanks in advance for any thoughts , advice or opinions .
> > >
> >
>
10
Eddie I don't know what parts of the 1.9 digijet are compatable with the 2.1 digijet but I would guess ecu and injectors at a minimum. I suppose sitting down with etka is the only way to find out. I assume what Steve is talking about is adding a resistor in the line to the coolant sensor, which will enrich the mixture. Basically you are making the ecu think the engine is colder. I assume the O2 sensor will also correct this. If I were you I would try any mods with the O2 sensor not hooked up to the ecu just your wizzbang gauge. I like the afm mod because it will enrich the mixture more so on accel and not give you an excessively rich cruise. Was the kit very expensive? It sounds like I need one! Greg E

From: eddie <bergodaz@ozemail.com.au>
To: Syncro_T3_Australia@yahoogroups.com
Sent: Sunday, 17 June 2012 9:45 AM
Subject: [Syncro_T3_Australia] Re: New Engine and air fuel ratio.

 
Hey Greg, done the spring in the AFM already. Richens up the mixture breifly but then I guess the 02 sensor combines with the ECU to bring things back into spec. Makes sense what Phill says that the DJ system has no 02 sensor. I think you're spot on in saying that the system is holding the engine back, cause I feel the my engine has alot more in it waiting to come out. Steve Muller hinted at some sort of impedence thingy connected to the temp sender to alter it's signal. Or alternately is the DJ system in the Euro buses the same or similar to the pre 86 1.9litre vans and can they be adapted to run a 2.1? I know they were way more tuneable and I've got an 85 parts van sitting in the shed. Eddie.

--- In mailto:Syncro_T3_Australia%40yahoogroups.com, greg esposito <gregespo73@...> wrote:
>
> Hi Eddie, I have got a 2280 cb camshaft ready to go in when I get time to do my rebuild. I am guessing he would have used a 2251 with ratio rockers (1.25?). Mines a bit of a gamble, will probably have a lumpy idle. Re the injection, the mv is so flat on accel that what your finding out all makes sense. Would love to get a complete dj digijet set up. The dj has no O2 or cat convertor, but does have a vac advance on the disy.I am thinking with this rebuild I am doing, going to 2.4l and high compression that the efi is just going to hold it back. I don't think it matters which O2 sensor you use it is all about what the ecu does with that input that matters. If you think back to carburator days the good performing carbs had accelerator pumps that would inject extra fuel as your pedal went down. Modern fuel injection will enrich, gradually tapering off till you get back to "cruise". What I might try is to "adjust" the spring on the afm to richen up the
> delivery to suit the increased capacity or hunt for injectors with slightly larger fuel delivery. This still won't give the kick in the pants we want. Greg E
>
>
>
> ________________________________
> From: eddie <bergodaz@...>
> To: mailto:Syncro_T3_Australia%40yahoogroups.com
> Sent: Saturday, 16 June 2012 10:17 PM
> Subject: [Syncro_T3_Australia] Re: New Engine and air fuel ratio.
>
>
>
>  
>
> Greg, the camshaft I think is a CB prformance cam (have to check for exact model) along with CB rockers & assemblies and DJ pistons. Judging from the info I can gather online, it seems that MV's are made to run at that "optimum AFR". The gauge I have has the option of using it's own o2 sensor to send info to the ECU in place of the stock one , so I'll give that a go tommorow & see how it goes.
>
> --- In mailto:Syncro_T3_Australia%40yahoogroups.com, greg esposito <gregespo73@> wrote:
> >
> > Eddie, are you running a stock cam?
> >
> >
> >
> > ________________________________
> > From: greg esposito <gregespo73@>
> > To: "mailto:Syncro_T3_Australia%40yahoogroups.com" <mailto:Syncro_T3_Australia%40yahoogroups.com>
> > Sent: Saturday, 16 June 2012 9:52 PM
> > Subject: Re: [Syncro_T3_Australia] Re: New Engine and air fuel ratio.
> >
> >
> >
> >  
> >
> > While I can't claim to know the mapping of the DJ or the MV, what you say makes sense in that the MV was set up as a low emission engine. Greg E
> >
> >
> > ________________________________
> > From: eddie <bergodaz@>
> > To: mailto:Syncro_T3_Australia%40yahoogroups.com
> > Sent: Saturday, 16 June 2012 9:19 PM
> > Subject: [Syncro_T3_Australia] Re: New Engine and air fuel ratio.
> >
> >
> >  
> > Greg, mine doesn't get richer as his does when I open up the throttle. Just seems to maintain a constant 14 to 15 AFR(or lambda 1).
> > --- In mailto:Syncro_T3_Australia%40yahoogroups.com, greg esposito <gregespo73@> wrote:
> > >
> > > Hi  Eddie, The guy who does that lamda video is running a DJ, a new create engine in fact. In what way does yours differ? Greg E
> > >
> > >
> > >
> > > ________________________________
> > > From: eddie <bergodaz@>
> > > To: mailto:Syncro_T3_Australia%40yahoogroups.com
> > > Sent: Saturday, 16 June 2012 5:08 PM
> > > Subject: [Syncro_T3_Australia] New Engine and air fuel ratio.
> > >
> > >
> > >  
> > >
> > > Hi group, its been about two weeks now that I've been running my Steven Muller built wbxer. In short I gotta say it's a smooth torque monster!
> > > On Steve's advice , I installed an air fuel ratio meter to keep an eye on possible too lean mixtures and pinging. My question to the group is , has anyone else got one of these meters and if so what readings do you get from them? My system seems to keep the mixture at an optimal 14.7to 1 at all times, apart from fuel deceleration shut off when it goes to 22 to 1. Having watched the video on the campervan culure site on this very topic I relised that my system behaves differently. Perhaps that system is the Euro only Digijet? Thanks in advance for any thoughts , advice or opinions .
> > >
> >
>



11
Sorry that sould have read NOT compatable.

From: greg esposito <gregespo73@yahoo.com>
To: "Syncro_T3_Australia@yahoogroups.com" <Syncro_T3_Australia@yahoogroups.com>
Sent: Sunday, 17 June 2012 8:52 PM
Subject: Re: [Syncro_T3_Australia] Re: New Engine and air fuel ratio.

 
Eddie I don't know what parts of the 1.9 digijet are compatable with the 2.1 digijet but I would guess ecu and injectors at a minimum. I suppose sitting down with etka is the only way to find out. I assume what Steve is talking about is adding a resistor in the line to the coolant sensor, which will enrich the mixture. Basically you are making the ecu think the engine is colder. I assume the O2 sensor will also correct this. If I were you I would try any mods with the O2 sensor not hooked up to the ecu just your wizzbang gauge. I like the afm mod because it will enrich the mixture more so on accel and not give you an excessively rich cruise. Was the kit very expensive? It sounds like I need one! Greg E

From: eddie <bergodaz@ozemail.com.au>
To: Syncro_T3_Australia@yahoogroups.com
Sent: Sunday, 17 June 2012 9:45 AM
Subject: [Syncro_T3_Australia] Re: New Engine and air fuel ratio.

 
Hey Greg, done the spring in the AFM already. Richens up the mixture breifly but then I guess the 02 sensor combines with the ECU to bring things back into spec. Makes sense what Phill says that the DJ system has no 02 sensor. I think you're spot on in saying that the system is holding the engine back, cause I feel the my engine has alot more in it waiting to come out. Steve Muller hinted at some sort of impedence thingy connected to the temp sender to alter it's signal. Or alternately is the DJ system in the Euro buses the same or similar to the pre 86 1.9litre vans and can they be adapted to run a 2.1? I know they were way more tuneable and I've got an 85 parts van sitting in the shed. Eddie.

--- In mailto:Syncro_T3_Australia%40yahoogroups.com, greg esposito <gregespo73@...> wrote:
>
> Hi Eddie, I have got a 2280 cb camshaft ready to go in when I get time to do my rebuild. I am guessing he would have used a 2251 with ratio rockers (1.25?). Mines a bit of a gamble, will probably have a lumpy idle. Re the injection, the mv is so flat on accel that what your finding out all makes sense. Would love to get a complete dj digijet set up. The dj has no O2 or cat convertor, but does have a vac advance on the disy.I am thinking with this rebuild I am doing, going to 2.4l and high compression that the efi is just going to hold it back. I don't think it matters which O2 sensor you use it is all about what the ecu does with that input that matters. If you think back to carburator days the good performing carbs had accelerator pumps that would inject extra fuel as your pedal went down. Modern fuel injection will enrich, gradually tapering off till you get back to "cruise". What I might try is to "adjust" the spring on the afm to richen up the
> delivery to suit the increased capacity or hunt for injectors with slightly larger fuel delivery. This still won't give the kick in the pants we want. Greg E
>
>
>
> ________________________________
> From: eddie <bergodaz@...>
> To: mailto:Syncro_T3_Australia%40yahoogroups.com
> Sent: Saturday, 16 June 2012 10:17 PM
> Subject: [Syncro_T3_Australia] Re: New Engine and air fuel ratio.
>
>
>
>  
>
> Greg, the camshaft I think is a CB prformance cam (have to check for exact model) along with CB rockers & assemblies and DJ pistons. Judging from the info I can gather online, it seems that MV's are made to run at that "optimum AFR". The gauge I have has the option of using it's own o2 sensor to send info to the ECU in place of the stock one , so I'll give that a go tommorow & see how it goes.
>
> --- In mailto:Syncro_T3_Australia%40yahoogroups.com, greg esposito <gregespo73@> wrote:
> >
> > Eddie, are you running a stock cam?
> >
> >
> >
> > ________________________________
> > From: greg esposito <gregespo73@>
> > To: "mailto:Syncro_T3_Australia%40yahoogroups.com" <mailto:Syncro_T3_Australia%40yahoogroups.com>
> > Sent: Saturday, 16 June 2012 9:52 PM
> > Subject: Re: [Syncro_T3_Australia] Re: New Engine and air fuel ratio.
> >
> >
> >
> >  
> >
> > While I can't claim to know the mapping of the DJ or the MV, what you say makes sense in that the MV was set up as a low emission engine. Greg E
> >
> >
> > ________________________________
> > From: eddie <bergodaz@>
> > To: mailto:Syncro_T3_Australia%40yahoogroups.com
> > Sent: Saturday, 16 June 2012 9:19 PM
> > Subject: [Syncro_T3_Australia] Re: New Engine and air fuel ratio.
> >
> >
> >  
> > Greg, mine doesn't get richer as his does when I open up the throttle. Just seems to maintain a constant 14 to 15 AFR(or lambda 1).
> > --- In mailto:Syncro_T3_Australia%40yahoogroups.com, greg esposito <gregespo73@> wrote:
> > >
> > > Hi  Eddie, The guy who does that lamda video is running a DJ, a new create engine in fact. In what way does yours differ? Greg E
> > >
> > >
> > >
> > > ________________________________
> > > From: eddie <bergodaz@>
> > > To: mailto:Syncro_T3_Australia%40yahoogroups.com
> > > Sent: Saturday, 16 June 2012 5:08 PM
> > > Subject: [Syncro_T3_Australia] New Engine and air fuel ratio.
> > >
> > >
> > >  
> > >
> > > Hi group, its been about two weeks now that I've been running my Steven Muller built wbxer. In short I gotta say it's a smooth torque monster!
> > > On Steve's advice , I installed an air fuel ratio meter to keep an eye on possible too lean mixtures and pinging. My question to the group is , has anyone else got one of these meters and if so what readings do you get from them? My system seems to keep the mixture at an optimal 14.7to 1 at all times, apart from fuel deceleration shut off when it goes to 22 to 1. Having watched the video on the campervan culure site on this very topic I relised that my system behaves differently. Perhaps that system is the Euro only Digijet? Thanks in advance for any thoughts , advice or opinions .
> > >
> >
>





12
Greg, tried to run on the newer 02 sensor but as you said ,made no difference. Will give the AFM spring a go without 02 today to see what this does. The only time I get a richer reading is during the first 5 minutes of warm up & during this time engine seems to have more go , so the temp sender mod might also have some effect. To answer your question , the gauge kit I got is from Innovate motorsports.It is a MTX-L kit and I bought it from an E-Bay reseller for about $220 from memory. I shelled out a further $90 to get a longer cable to make it from the back to front of the bus. Got this from Rocket Industries in Sydney but you could make it yourself if you have half an electrical brain.
--- In Syncro_T3_Australia@yahoogroups.com, greg esposito <gregespo73@...> wrote:
>
> Sorry that sould have read NOT compatable.
>
>
>
> ________________________________
> From: greg esposito <gregespo73@...>
> To: "Syncro_T3_Australia@yahoogroups.com" <Syncro_T3_Australia@yahoogroups.com>
> Sent: Sunday, 17 June 2012 8:52 PM
> Subject: Re: [Syncro_T3_Australia] Re: New Engine and air fuel ratio.
>
>
>
> Â
>
> Eddie I don't know what parts of the 1.9 digijet are compatable with the 2.1 digijet but I would guess ecu and injectors at a minimum. I suppose sitting down with etka is the only way to find out. I assume what Steve is talking about is adding a resistor in the line to the coolant sensor, which will enrich the mixture. Basically you are making the ecu think the engine is colder. I assume the O2 sensor will also correct this. If I were you I would try any mods with the O2 sensor not hooked up to the ecu just your wizzbang gauge. I like the afm mod because it will enrich the mixture more so on accel and not give you an excessively rich cruise. Was the kit very expensive? It sounds like I need one! Greg E
>
>
> ________________________________
> From: eddie <bergodaz@...>
> To: Syncro_T3_Australia@yahoogroups.com
> Sent: Sunday, 17 June 2012 9:45 AM
> Subject: [Syncro_T3_Australia] Re: New Engine and air fuel ratio.
>
>
> Â
> Hey Greg, done the spring in the AFM already. Richens up the mixture breifly but then I guess the 02 sensor combines with the ECU to bring things back into spec. Makes sense what Phill says that the DJ system has no 02 sensor. I think you're spot on in saying that the system is holding the engine back, cause I feel the my engine has alot more in it waiting to come out. Steve Muller hinted at some sort of impedence thingy connected to the temp sender to alter it's signal. Or alternately is the DJ system in the Euro buses the same or similar to the pre 86 1.9litre vans and can they be adapted to run a 2.1? I know they were way more tuneable and I've got an 85 parts van sitting in the shed. Eddie.
>
> --- In mailto:Syncro_T3_Australia%40yahoogroups.com, greg esposito <gregespo73@> wrote:
> >
> > Hi Eddie, I have got a 2280 cb camshaft ready to go in when I get time to do my rebuild. I am guessing he would have used a 2251 with ratio rockers (1.25?). Mines a bit of a gamble, will probably have a lumpy idle. Re the injection, the mv is so flat on accel that what your finding out all makes sense. Would love to get a complete dj digijet set up. The dj has no O2 or cat convertor, but does have a vac advance on the disy.I am thinking with this rebuild I am doing, going to 2.4l and high compression that the efi is just going to hold it back. I don't think it matters which O2 sensor you use it is all about what the ecu does with that input that matters. If you think back to carburator days the good performing carbs had accelerator pumps that would inject extra fuel as your pedal went down. Modern fuel injection will enrich, gradually tapering off till you get back to "cruise". What I might try is to "adjust" the spring on the afm to
> richen up the
> > delivery to suit the increased capacity or hunt for injectors with slightly larger fuel delivery. This still won't give the kick in the pants we want. Greg E
> >
> >
> >
> > ________________________________
> > From: eddie <bergodaz@>
> > To: mailto:Syncro_T3_Australia%40yahoogroups.com
> > Sent: Saturday, 16 June 2012 10:17 PM
> > Subject: [Syncro_T3_Australia] Re: New Engine and air fuel ratio.
> >
> >
> >
> > ÂÂ
> >
> > Greg, the camshaft I think is a CB prformance cam (have to check for exact model) along with CB rockers & assemblies and DJ pistons. Judging from the info I can gather online, it seems that MV's are made to run at that "optimum AFR". The gauge I have has the option of using it's own o2 sensor to send info to the ECU in place of the stock one , so I'll give that a go tommorow & see how it goes.
> >
> > --- In mailto:Syncro_T3_Australia%40yahoogroups.com, greg esposito <gregespo73@> wrote:
> > >
> > > Eddie, are you running a stock cam?
> > >
> > >
> > >
> > > ________________________________
> > > From: greg esposito <gregespo73@>
> > > To: "mailto:Syncro_T3_Australia%40yahoogroups.com" <mailto:Syncro_T3_Australia%40yahoogroups.com>
> > > Sent: Saturday, 16 June 2012 9:52 PM
> > > Subject: Re: [Syncro_T3_Australia] Re: New Engine and air fuel ratio.
> > >
> > >
> > >
> > > ÂÂÂ
> > >
> > > While I can't claim to know the mapping of the DJ or the MV, what you say makes sense in that the MV was set up as a low emission engine. Greg E
> > >
> > >
> > > ________________________________
> > > From: eddie <bergodaz@>
> > > To: mailto:Syncro_T3_Australia%40yahoogroups.com
> > > Sent: Saturday, 16 June 2012 9:19 PM
> > > Subject: [Syncro_T3_Australia] Re: New Engine and air fuel ratio.
> > >
> > >
> > > ÂÂÂ
> > > Greg, mine doesn't get richer as his does when I open up the throttle. Just seems to maintain a constant 14 to 15 AFR(or lambda 1).
> > > --- In mailto:Syncro_T3_Australia%40yahoogroups.com, greg esposito <gregespo73@> wrote:
> > > >
> > > > HiÃÆ'‚ Eddie, The guy who does that lamda video is running a DJ, a new create engine in fact. In what way does yours differ? Greg E
> > > >
> > > >
> > > >
> > > > ________________________________
> > > > From: eddie <bergodaz@>
> > > > To: mailto:Syncro_T3_Australia%40yahoogroups.com
> > > > Sent: Saturday, 16 June 2012 5:08 PM
> > > > Subject: [Syncro_T3_Australia] New Engine and air fuel ratio.
> > > >
> > > >
> > > > ÃÆ'‚ÂÂÂ
> > > >
> > > > Hi group, its been about two weeks now that I've been running my Steven Muller built wbxer. In short I gotta say it's a smooth torque monster!
> > > > On Steve's advice , I installed an air fuel ratio meter to keep an eye on possible too lean mixtures and pinging. My question to the group is , has anyone else got one of these meters and if so what readings do you get from them? My system seems to keep the mixture at an optimal 14.7to 1 at all times, apart from fuel deceleration shut off when it goes to 22 to 1. Having watched the video on the campervan culure site on this very topic I relised that my system behaves differently. Perhaps that system is the Euro only Digijet? Thanks in advance for any thoughts , advice or opinions .
> > > >
> > >
> >
>
13
Hi Eddie,congrats on your new torque monster.After it is run in,I would be very interested in the fuel economy that you are getting.Please let us know in due time.
BenC

--- In Syncro_T3_Australia@yahoogroups.com, "eddie" <bergodaz@...> wrote:
>
> Hi group, its been about two weeks now that I've been running my Steven Muller built wbxer. In short I gotta say it's a smooth torque monster!
> On Steve's advice , I installed an air fuel ratio meter to keep an eye on possible too lean mixtures and pinging. My question to the group is , has anyone else got one of these meters and if so what readings do you get from them? My system seems to keep the mixture at an optimal 14.7to 1 at all times, apart from fuel deceleration shut off when it goes to 22 to 1. Having watched the video on the campervan culure site on this very topic I relised that my system behaves differently. Perhaps that system is the Euro only Digijet? Thanks in advance for any thoughts , advice or opinions .
>
14
Thanks Ben, will wait a bit before I do any economy test as I'm still fine tuning things. I might also put some more eco-friendly tyres on as opposed to the mud terrains curently on the bus.

--- In Syncro_T3_Australia@yahoogroups.com, "Ben" <bencroft96@...> wrote:
>
> Hi Eddie,congrats on your new torque monster.After it is run in,I would be very interested in the fuel economy that you are getting.Please let us know in due time.
> BenC
>
> --- In Syncro_T3_Australia@yahoogroups.com, "eddie" <bergodaz@> wrote:
> >
> > Hi group, its been about two weeks now that I've been running my Steven Muller built wbxer. In short I gotta say it's a smooth torque monster!
> > On Steve's advice , I installed an air fuel ratio meter to keep an eye on possible too lean mixtures and pinging. My question to the group is , has anyone else got one of these meters and if so what readings do you get from them? My system seems to keep the mixture at an optimal 14.7to 1 at all times, apart from fuel deceleration shut off when it goes to 22 to 1. Having watched the video on the campervan culure site on this very topic I relised that my system behaves differently. Perhaps that system is the Euro only Digijet? Thanks in advance for any thoughts , advice or opinions .
> >
>