Re:

Hi Les, I haven't had a chance to double check all this but from memory I would have suggested measuring a full two inches on the pulley from the V notch which would give you 40 degrees. That is the 35 +/-5 spec being used to get 40 degrees so you are as advanced as possible. Anyone with a mv that runs on premium last worry is detonation and that covers probably 90% of the forum. Gregor




From: "'Leslie Harris' leslieharris@optusnet.com.au [Syncro_T3_Australia]" <Syncro_T3_Australia@yahoogroups.com>
To: Syncro_T3_Australia@yahoogroups.com
Sent: Monday, 4 January 2016, 10:34
Subject: RE: [Syncro_T3_Australia] Ignition Setting

 
Ken,
Thanks for that; it confirms several other references. 
There is still a nagging question.  A range of 30 to 40 degrees is gigantic and does not make a lot of sense in an ECU that should be able to control timing to fractions of a degree.
It is fairly sure that Gregor will be able to tell us a lot more.  He and Alice are probably taking a break somewhere so we will have to wait until he returns.
L
 

From: Syncro_T3_Australia@yahoogroups.com [mailto: Syncro_T3_Australia@yahoogroups.com ]
Sent: 03 January 2016 22:18
To: Syncro Australia Forum
Subject: RE: [Syncro_T3_Australia] Ignition Setting
 
Hi Les, Peter and all,
GoWesty makes a stick-on label that shows timing settings for WBX2.1motor...
Goto: http://www.gowesty.com/product-details.php?v=&id=23955&type=
 
Their fuller explanation about timing is here...
Goto: http://www.gowesty.com/tech-article-details.php?id=162
 
Might help.
Cheers.
Ken


So converting stated measurements to metric, there are two timing position choices. Assuming GoWesty's calculations are correct, then its 35 degrees BTDC position is an extra 44mm clockwise beyond the "notch" mark on the pulley rim, or else for more advanced as Greg suggests, add an extra 6mm, position being then 50mm before the "notch".

Clear as mud?
Ken



-------- Original message --------
From: "Greg Esposito gregespo73@yahoo.com [Syncro_T3_Australia]" <Syncro_T3_Australia@yahoogroups.com>
Date: 04/01/2016 10:13 PM (GMT+10:00)
To: Syncro_T3_Australia@yahoogroups.com
Subject: Re: [Syncro_T3_Australia] Ignition Setting


 

Hi Les, I haven't had a chance to double check all this but from memory I would have suggested measuring a full two inches on the pulley from the V notch which would give you 40 degrees. That is the 35 +/-5 spec being used to get 40 degrees so you are as advanced as possible. Anyone with a mv that runs on premium last worry is detonation and that covers probably 90% of the forum. Gregor




From: "'Leslie Harris' leslieharris@optusnet.com.au [Syncro_T3_Australia]" <Syncro_T3_Australia@yahoogroups.com>
To: Syncro_T3_Australia@yahoogroups.com
Sent: Monday, 4 January 2016, 10:34
Subject: RE: [Syncro_T3_Australia] Ignition Setting

 
Ken,
Thanks for that; it confirms several other references. 
There is still a nagging question.  A range of 30 to 40 degrees is gigantic and does not make a lot of sense in an ECU that should be able to control timing to fractions of a degree.
It is fairly sure that Gregor will be able to tell us a lot more.  He and Alice are probably taking a break somewhere so we will have to wait until he returns.
L
 

From: Syncro_T3_Australia@yahoogroups.com [mailto: Syncro_T3_Australia@yahoogroups.com ]
Sent: 03 January 2016 22:18
To: Syncro Australia Forum
Subject: RE: [Syncro_T3_Australia] Ignition Setting
 
Hi Les, Peter and all,
GoWesty makes a stick-on label that shows timing settings for WBX2.1motor...
Goto: http://www.gowesty.com/product-details.php?v=&id=23955&type=
 
Their fuller explanation about timing is here...
Goto: http://www.gowesty.com/tech-article-details.php?id=162
 
Might help.
Cheers.
Ken


Gregor,

Thanks.  Thinking this through, it probably boils down to all is well if you get 30+0 at anything over about 2500 RPM.

 


From: Syncro_T3_Australia@yahoogroups.com [mailto: Syncro_T3_Australia@yahoogroups.com ]
Sent: 04 January 2016 22:11
To: Syncro_T3_Australia@yahoogroups.com
Subject: Re: [Syncro_T3_Australia] Ignition Setting

 

 

Hi Les, I haven't had a chance to double check all this but from memory I would have suggested measuring a full two inches on the pulley from the V notch which would give you 40 degrees. That is the 35 +/-5 spec being used to get 40 degrees so you are as advanced as possible. Anyone with a mv that runs on premium last worry is detonation and that covers probably 90% of the forum. Gregor

 

 


From: "'Leslie Harris' leslieharris@optusnet.com.au [Syncro_T3_Australia]" < Syncro_T3_Australia@yahoogroups.com >
To: Syncro_T3_Australia@yahoogroups.com
Sent: Monday, 4 January 2016, 10:34
Subject: RE: [Syncro_T3_Australia] Ignition Setting

 

 

Ken,

Thanks for that; it confirms several other references. 

There is still a nagging question.  A range of 30 to 40 degrees is gigantic and does not make a lot of sense in an ECU that should be able to control timing to fractions of a degree.

It is fairly sure that Gregor will be able to tell us a lot more.  He and Alice are probably taking a break somewhere so we will have to wait until he returns.

L

 


From: Syncro_T3_Australia@yahoogroups.com [mailto: Syncro_T3_Australia@yahoogroups.com ]
Sent: 03 January 2016 22:18
To: Syncro Australia Forum
Subject: RE: [Syncro_T3_Australia] Ignition Setting
 

Hi Les, Peter and all,

GoWesty makes a stick-on label that shows timing settings for WBX2.1motor...

Goto: http://www.gowesty.com/product-details.php?v=&id=23955&type=

 

Their fuller explanation about timing is here...

Goto: http://www.gowesty.com/tech-article-details.php?id=162

 

Might help.

Cheers.

Ken

 

Hello Gregor

I am going to set the ignition timing on my Syncro tomorrow. I did it for the first time recently and I think it is pretty close to what it is supposed to be.
I went by the instructions as per Go Westy. That is 35 degrees BTDC at 3500RPM with all sensors connected (e.g. Temp II sensor)
Tomorrow I will advance it a bit more to 40 degrees BTDC  as per your recommendation rather that the Go Westy recommendation.
However a question..
Given that the V notch represents 5 degrees BTDC  and 1/4 of an inch along the circumference of the crankshaft pulley represents 5 degrees BTDC, then 2 inches from the V would represent 45 degrees BTDC not 40 degrees BTDC , wouldn't it?
Another question.
I have always used unleaded 91 in my Van. Should I be using Premium 98? Or Unleaded 95?

Regards

Peter
Adelaide
1998 Syncro which still is cutting out!!

On 04/01/2016, at 9:40 PM, Greg Esposito gregespo73@yahoo.com [Syncro_T3_Australia] wrote:

 

Hi Les, I haven't had a chance to double check all this but from memory I would have suggested measuring a full two inches on the pulley from the V notch which would give you 40 degrees. That is the 35 +/-5 spec being used to get 40 degrees so you are as advanced as possible. Anyone with a mv that runs on premium last worry is detonation and that covers probably 90% of the forum. Gregor




From: "'Leslie Harris' leslieharris@optusnet.com.au [Syncro_T3_Australia]" <Syncro_T3_Australia@yahoogroups.com>
To: Syncro_T3_Australia@yahoogroups.com
Sent: Monday, 4 January 2016, 10:34
Subject: RE: [Syncro_T3_Australia] Ignition Setting

 
Ken,
Thanks for that; it confirms several other references. 
There is still a nagging question.  A range of 30 to 40 degrees is gigantic and does not make a lot of sense in an ECU that should be able to control timing to fractions of a degree.
It is fairly sure that Gregor will be able to tell us a lot more.  He and Alice are probably taking a break somewhere so we will have to wait until he returns.
L
 

From: Syncro_T3_Australia@yahoogroups.com [mailto: Syncro_T3_Australia@yahoogroups.com ]
Sent: 03 January 2016 22:18
To: Syncro Australia Forum
Subject: RE: [Syncro_T3_Australia] Ignition Setting
 
Hi Les, Peter and all,
GoWesty makes a stick-on label that shows timing settings for WBX2.1motor...
 
Their fuller explanation about timing is here...
 
Might help.
Cheers.
Ken




Hi Peter,
According to my calculations using GoWesty supplied measurements i.e., 1.75 inches around the pulley rim being 30 degrees, that translates to 7.33mm for each 5 degrees. Multiply that by 6 equals as per what I said in my last post on this topic ... i.e., 44mm for metric conversion of GoWesty, then for second choice ... add a quarter inch as per Gregor (6mm), to arrive at 50mm beyond the notch.

If in doubt, drag out your calculator, I'd be happy to stand corrected if you reach a different calculation. Let me know ok. Ta.
Cheers.
Ken



-------- Original message --------
From: "Peter Leolkes pleolkes@bigbutton.com.au [Syncro_T3_Australia]" <Syncro_T3_Australia@yahoogroups.com>
Date: 05/01/2016 6:41 PM (GMT+10:00)
To: Syncro_T3_Australia@yahoogroups.com
Subject: Re: [Syncro_T3_Australia] Ignition Setting


 

Hello Gregor


I am going to set the ignition timing on my Syncro tomorrow. I did it for the first time recently and I think it is pretty close to what it is supposed to be.
I went by the instructions as per Go Westy. That is 35 degrees BTDC at 3500RPM with all sensors connected (e.g. Temp II sensor)
Tomorrow I will advance it a bit more to 40 degrees BTDC  as per your recommendation rather that the Go Westy recommendation.
However a question..
Given that the V notch represents 5 degrees BTDC  and 1/4 of an inch along the circumference of the crankshaft pulley represents 5 degrees BTDC, then 2 inches from the V would represent 45 degrees BTDC not 40 degrees BTDC , wouldn't it?
Another question.
I have always used unleaded 91 in my Van. Should I be using Premium 98? Or Unleaded 95?

Regards

Peter
Adelaide
1998 Syncro which still is cutting out!!

On 04/01/2016, at 9:40 PM, Greg Esposito gregespo73@yahoo.com [Syncro_T3_Australia] wrote:

 

Hi Les, I haven't had a chance to double check all this but from memory I would have suggested measuring a full two inches on the pulley from the V notch which would give you 40 degrees. That is the 35 +/-5 spec being used to get 40 degrees so you are as advanced as possible. Anyone with a mv that runs on premium last worry is detonation and that covers probably 90% of the forum. Gregor




From: "'Leslie Harris' leslieharris@optusnet.com.au [Syncro_T3_Australia]" <Syncro_T3_Australia@yahoogroups.com>
To: Syncro_T3_Australia@yahoogroups.com
Sent: Monday, 4 January 2016, 10:34
Subject: RE: [Syncro_T3_Australia] Ignition Setting

 
Ken,
Thanks for that; it confirms several other references. 
There is still a nagging question.  A range of 30 to 40 degrees is gigantic and does not make a lot of sense in an ECU that should be able to control timing to fractions of a degree.
It is fairly sure that Gregor will be able to tell us a lot more.  He and Alice are probably taking a break somewhere so we will have to wait until he returns.
L
 

From: Syncro_T3_Australia@yahoogroups.com [mailto: Syncro_T3_Australia@yahoogroups.com ]
Sent: 03 January 2016 22:18
To: Syncro Australia Forum
Subject: RE: [Syncro_T3_Australia] Ignition Setting
 
Hi Les, Peter and all,
GoWesty makes a stick-on label that shows timing settings for WBX2.1motor...
 
Their fuller explanation about timing is here...
 
Might help.
Cheers.
Ken




Hi Peter, don't know why we are talking inches or millimeters when the measurement is done in degrees. Get a piece of paper cut the same diameter as the pulley , split it into as many degrees as you want (split in4 is 90 deg in 4 again is 45deg and so on) . Use a protractor if needed and then transfer what you need to the pulley. Ive found my wbx with DJ pistons runs better with  bit more total advance about 45 deg , but I do run it on 98 ron to avoid detonation. 91 ron fuel is just too much of a gamble especially from the shopper docket outlets. Cheers, Eddie.
To double check the math you can get out a cloth measuring tape and measure the distance between the tdc "U" and the 5degree "V". You will come up with 7+mm. Multiply 7x8 to get 40degrees =56mm. This is not an accurate way of doing it but it does confirm the theory is sound. Trust me 50mm from the V is spot on. How do I know? Because the acid test is that on every 2.1 I have ever set the timing I make the new mark clean the old mark and then set the timing at idle as per the manual, then I reconnect the  temp sensor and rev the engine with the strobe blaring away and it will always stop advancing on that new mark. Works every time. The idle method is not hard at all and if you do both and get the right result you know you have at least this setting right. Gregor



From: "unclekenz unclekenz@hotmail.com [Syncro_T3_Australia]" <Syncro_T3_Australia@yahoogroups.com>
To: Syncro Australia Forum <Syncro_T3_Australia@yahoogroups.com>
Sent: Tuesday, 5 January 2016, 19:11
Subject: Re: [Syncro_T3_Australia] Ignition Setting

 
Hi Peter,
According to my calculations using GoWesty supplied measurements i.e., 1.75 inches around the pulley rim being 30 degrees, that translates to 7.33mm for each 5 degrees. Multiply that by 6 equals as per what I said in my last post on this topic ... i.e., 44mm for metric conversion of GoWesty, then for second choice ... add a quarter inch as per Gregor (6mm), to arrive at 50mm beyond the notch.

If in doubt, drag out your calculator, I'd be happy to stand corrected if you reach a different calculation. Let me know ok. Ta.
Cheers.
Ken



-------- Original message --------
From: "Peter Leolkes pleolkes@bigbutton.com.au [Syncro_T3_Australia]" <Syncro_T3_Australia@yahoogroups.com>
Date: 05/01/2016 6:41 PM (GMT+10:00)
To: Syncro_T3_Australia@yahoogroups.com
Subject: Re: [Syncro_T3_Australia] Ignition Setting


 
Hello Gregor

I am going to set the ignition timing on my Syncro tomorrow. I did it for the first time recently and I think it is pretty close to what it is supposed to be.
I went by the instructions as per Go Westy. That is 35 degrees BTDC at 3500RPM with all sensors connected (e.g. Temp II sensor)
Tomorrow I will advance it a bit more to 40 degrees BTDC  as per your recommendation rather that the Go Westy recommendation.
However a question..
Given that the V notch represents 5 degrees BTDC  and 1/4 of an inch along the circumference of the crankshaft pulley represents 5 degrees BTDC, then 2 inches from the V would represent 45 degrees BTDC not 40 degrees BTDC , wouldn't it?
Another question.
I have always used unleaded 91 in my Van. Should I be using Premium 98? Or Unleaded 95?

Regards

Peter
Adelaide
1998 Syncro which still is cutting out!!

On 04/01/2016, at 9:40 PM, Greg Esposito mailto:gregespo73@yahoo.com [Syncro_T3_Australia] wrote:

 

Hi Les, I haven't had a chance to double check all this but from memory I would have suggested measuring a full two inches on the pulley from the V notch which would give you 40 degrees. That is the 35 +/-5 spec being used to get 40 degrees so you are as advanced as possible. Anyone with a mv that runs on premium last worry is detonation and that covers probably 90% of the forum. Gregor




From: "'Leslie Harris' mailto:leslieharris@optusnet.com.au [Syncro_T3_Australia]" <Syncro_T3_Australia@yahoogroups.com>
To: mailto:Syncro_T3_Australia@yahoogroups.com
Sent: Monday, 4 January 2016, 10:34
Subject: RE: [Syncro_T3_Australia] Ignition Setting

 
Ken,
Thanks for that; it confirms several other references. 
There is still a nagging question.  A range of 30 to 40 degrees is gigantic and does not make a lot of sense in an ECU that should be able to control timing to fractions of a degree.
It is fairly sure that Gregor will be able to tell us a lot more.  He and Alice are probably taking a break somewhere so we will have to wait until he returns.
L
 

From: Syncro_T3_Australia@yahoogroups.com [mailto: Syncro_T3_Australia@yahoogroups.com ]
Sent: 03 January 2016 22:18
To: Syncro Australia Forum
Subject: RE: [Syncro_T3_Australia] Ignition Setting
 
Hi Les, Peter and all,
GoWesty makes a stick-on label that shows timing settings for WBX2.1motor...
 
Their fuller explanation about timing is here...
 
Might help.
Cheers.
Ken






Degrees is the way to go, I agree, however, I am not able to measure the crankshaft pulley (diameter or circumference). Can't get anything in there to measure the diameter. Don't have a large enough set of callipers which may do the job.
Do you know what it is? All I have to go on are the two existing marks (one a v shape and the pther a u indent on the pulley and I know that that represents 5 degrees. Can measuer the distance between them.
Agreed, if i knew the diameter I could replicate it on paper and construct a 30 or 35 degree mark which I could then transfer.
Regards
Peter 

On 05/01/2016, at 6:53 PM, bergodaz@ozemail.com.au [Syncro_T3_Australia] wrote:

 

Hi Peter, don't know why we are talking inches or millimeters when the measurement is done in degrees. Get a piece of paper cut the same diameter as the pulley , split it into as many degrees as you want (split in4 is 90 deg in 4 again is 45deg and so on) . Use a protractor if needed and then transfer what you need to the pulley. Ive found my wbx with DJ pistons runs better with  bit more total advance about 45 deg , but I do run it on 98 ron to avoid detonation. 91 ron fuel is just too much of a gamble especially from the shopper docket outlets. Cheers, Eddie.


Ok thanks Gregor. That all makes sense and you have a lot more experience that I do ( I have done the timing once!) so tomorrow I will do as you have suggested below. Thanks again.


Regards
Peter Leolkes


On 05/01/2016, at 9:49 PM, Greg Esposito gregespo73@yahoo.com [Syncro_T3_Australia] wrote:

 

To double check the math you can get out a cloth measuring tape and measure the distance between the tdc "U" and the 5degree "V". You will come up with 7+mm. Multiply 7x8 to get 40degrees =56mm. This is not an accurate way of doing it but it does confirm the theory is sound. Trust me 50mm from the V is spot on. How do I know? Because the acid test is that on every 2.1 I have ever set the timing I make the new mark clean the old mark and then set the timing at idle as per the manual, then I reconnect the  temp sensor and rev the engine with the strobe blaring away and it will always stop advancing on that new mark. Works every time. The idle method is not hard at all and if you do both and get the right result you know you have at least this setting right. Gregor



From: "unclekenz unclekenz@hotmail.com [Syncro_T3_Australia]" <Syncro_T3_Australia@yahoogroups.com>
To: Syncro Australia Forum <Syncro_T3_Australia@yahoogroups.com>
Sent: Tuesday, 5 January 2016, 19:11
Subje ct: Re: [Syncro_T3_Australia] Ignition Setting

 
Hi Peter,
According to my calculations using GoWesty supplied measurements i.e., 1.75 inches around the pulley rim being 30 degrees, that translates to 7.33mm for each 5 degrees. Multiply that by 6 equals as per what I said in my last post on this topic ... i.e., 44mm for metric conversion of GoWesty, then for second choice ... add a quarter inch as per Gregor (6mm), to arrive at 50mm beyond the notch.

If in doubt, drag out your calculator, I'd be happy to stand corrected if you reach a different calculation. Let me know ok. Ta.
Cheers.
Ken



-------- Original message --------
From: "Peter Leolkes pleolkes@bigbutton.com.au [Syncro_T3_Australia]" <Syncro_T3_Australia@yahoogroups.com>
Date: 05/01/2016 6:41 PM (GMT+10:00)
To: Syncro_T3_Australia@yahoogroups.com
Subject: Re: [Syncro_T3_Australia] Ignition Setting


 
Hello Gregor

I am going to set the ignition timing on my Syncro tomorrow. I did it for the first time recently and I think it is pretty close to what it is supposed to be.
I went by the instructions as per Go Westy. That is 35 degrees BTDC at 3500RPM with all sensors connected (e.g. Temp II sensor)
Tomorrow I will advance it a bit more to 40 degrees BTDC  as per your recommendation rather that the Go Westy recommendation.
However a question..
Given that the V notch represents 5 degrees BTDC  and 1/4 of an inch along the circumference of the crankshaft pulley represents 5 degrees BTDC, then 2 inches from the V would represent 45 degrees BTDC not 40 degrees BTDC , wouldn't it?
Another question.
I have always used unleaded 91 in my Van. Should I be using Premium 98? Or Unleaded 95?

Regards

Peter
Adelaide
1998 Syncro which still is cutting out!!

On 04/01/2016, at 9:40 PM, Greg Esposito mailto:gregespo73@yahoo.com [Syncro_T3_Australia] wrote:

 

Hi Les, I haven't had a chance to double check all this but from memory I would have suggested measuring a full two inches on the pulley from the V notch which would give you 40 degrees. That is the 35 +/-5 spec being used to get 40 degrees so you are as advanced as possible. Anyone with a mv that runs on premium last worry is detonation and that covers probably 90% of the forum. Gregor




From: "'Leslie Harris' mailto:leslieharris@optusnet.com.au [Syncro_T3_Australia]" <Syncro_T3_Australia@yahoogroups.com>
To: mailto:Syncro_T3_Australia@yahoogroups.com
Sent: Monday, 4 January 2016, 10:34
Subject: RE: [Syncro_T3_Australia] Ignition Setting

 
Ken,
Thanks for that; it confirms several other references. 
There is still a nagging question.  A range of 30 to 40 degrees is gigantic and does not make a lot of sense in an ECU that should be able to control timing to fractions of a degree.
It is fairly sure that Gregor will be able to tell us a lot more.  He and Alice are probably taking a break somewhere so we will have to wait until he returns.
L
 

From: Syncro_T3_Australia@yahoogroups.com [mailto: Syncro_T3_Australia@yahoogroups.com ]
Sent: 03 January 2016 22:18
To: Syncro Australia Forum
Subject: RE: [Syncro_T3_Australia] Ignition Setting
 
Hi Les, Peter and all,
GoWesty makes a stick-on label that shows timing settings for WBX2.1motor...
 
Their fuller explanation about timing is here...
 
Might help.
Cheers.
Ken








Peter, just measured it for you, my spare is 168mm overall diameter.
Hart

Sent from my WalkingStick!

On 05/01/2016, at 22:23, "Peter Leolkes pleolkes@bigbutton.com.au [Syncro_T3_Australia]" <Syncro_T3_Australia@yahoogroups.com> wrote:

 

Degrees is the way to go, I agree, however, I am not able to measure the crankshaft pulley (diameter or circumference). Can't get anything in there to measure the diameter. Don't have a large enough set of callipers which may do the job.

Do you know what it is? All I have to go on are the two existing marks (one a v shape and the pther a u indent on the pulley and I know that that represents 5 degrees. Can measuer the distance between them.
Agreed, if i knew the diameter I could replicate it on paper and construct a 30 or 35 degree mark which I could then transfer.
Regards
Peter 

On 05/01/2016, at 6:53 PM, bergodaz@ozemail.com.au [Syncro_T3_Australia] wrote:

 

Hi Peter, don't know why we are talking inches or millimeters when the measurement is done in degrees. Get a piece of paper cut the same diameter as the pulley , split it into as many degrees as you want (split in4 is 90 deg in 4 again is 45deg and so on) . Use a protractor if needed and then transfer what you need to the pulley. Ive found my wbx with DJ pistons runs better with  bit more total advance about 45 deg , but I do run it on 98 ron to avoid detonation. 91 ron fuel is just too much of a gamble especially from the shopper docket outlets. Cheers, Eddie.


Thanks Hart. Much appreciated.. again!
Regards
Peter

On 06/01/2016, at 7:47 AM, Hartmut Kiehn hartis@live.com.au [Syncro_T3_Australia] wrote:

 

Peter, just measured it for you, my spare is 168mm overall diameter.
Hart

Sent from my WalkingStick!

On 05/01/2016, at 22:23, "Peter Leolkes pleolkes@bigbutton.com.au [Syncro_T3_Australia]" <Syncro_T3_Australia@yahoogroups.com> wrote:

 

Degrees is the way to go, I agree, however, I am not able to measure the crankshaft pulley (diameter or circumference). Can't get anything in there to measure the diameter. Don't have a large enough set of callipers which may do the job.

Do you know what it is? All I have to go on are the two existing marks (one a v shape and the pther a u indent on the pulley and I know that that represents 5 degrees. Can measuer the distance between them.
Agreed, if i knew the diameter I could replicate it on paper and construct a 30 or 35 degree mark which I could then transfer.
Regards
Peter 

On 05/01/2016, at 6:53 PM, bergodaz@ozemail.com.au [Syncro_T3_Australia] wrote:

 

Hi Peter, don't know why we are talking inches or millimeters when the measurement is done in degrees. Get a piece of paper cut the same diameter as the pulley , split it into as many degrees as you want (split in4 is 90 deg in 4 again is 45deg and so on) . Use a protractor if needed and then transfer what you need to the pulley. Ive found my wbx with DJ pistons runs better with  bit more total advance about 45 deg , but I do run it on 98 ron to avoid detonation. 91 ron fuel is just too much of a gamble especially from the shopper docket outlets. Cheers, Eddie.