Help tuning spark timing.

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Feernan
Messaggi: 41
Iscritto il: 24/07/2016, 19:58
Auto: Fiat punto 2013 1.4 8v
ECU: MS2 V3.57

Help tuning spark timing.

Messaggioda Feernan » 28/02/2017, 3:59

Hello guys... After I tell you my history in presentation forum I need specific help.

If someone doesn't know I broke 2 pistons for bad timing tune that was tune for a paid tuner of my city..

My car is a gpunto 1.48v fire.. compression ratio is 8.5:1 and I use 98 Oct shell fuel only. And I boost 1.3 bar max constant 1.26

I wanna know what values are approximately good for my engine as base .. I don't wanna broke again.

I was talking with other 2 tuners here. And one say that in fuel boost (1.26 bar) timing must be around 9 ° and the other say that timing must be approximately 20°...

I'm so lost. I don't have previous experience .
Thanks for help

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rosso alfa
Messaggi: 341
Iscritto il: 05/09/2011, 13:57
Auto: Gtv V6 TB
ECU: MS2 V3.0
Località: Roma

Re: Help tuning spark timing.

Messaggioda rosso alfa » 28/02/2017, 11:58

Hi, there is not a specific value for the advance comprared to the compression ratio valid for any engine, it depends on many factors, such as piston bore, shape of the combustion chamber, domes on the piston top, camshaft timing, and the turbocharger you used.
With that 72 mm piston I would stay around 12° in the max torque range, up to 18° after the power peak, clearly with the right AFR (11-11.5)

Feernan
Messaggi: 41
Iscritto il: 24/07/2016, 19:58
Auto: Fiat punto 2013 1.4 8v
ECU: MS2 V3.57

Re: RE: Re: Help tuning spark timing.

Messaggioda Feernan » 28/02/2017, 15:09

rosso alfa ha scritto:Hi, there is not a specific value for the advance comprared to the compression ratio valid for any engine, it depends on many factors, such as piston bore, shape of the combustion chamber, domes on the piston top, camshaft timing, and the turbocharger you used.
With that 72 mm piston I would stay around 12° in the max torque range, up to 18° after the power peak, clearly with the right AFR (11-11.5)

Thanks. This is that I wanna know.. a reference.... I have a kkk16 borgwarner turbo with original camshaft.

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incubo
Messaggi: 3122
Iscritto il: 02/04/2012, 20:21
Auto: Punto Abarth-Panda 4x4 dell'84
ECU: MS2 V2.2
Località: Tra 1.9-2 bar :-)

Re: Help tuning spark timing.

Messaggioda incubo » 28/02/2017, 17:42

Aridaje...
Non hai i permessi necessari per visualizzare i file allegati in questo messaggio.
...e tu la chiami vita sotto i 4000 giri?!...

Leonardo

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incubo
Messaggi: 3122
Iscritto il: 02/04/2012, 20:21
Auto: Punto Abarth-Panda 4x4 dell'84
ECU: MS2 V2.2
Località: Tra 1.9-2 bar :-)

Re: Help tuning spark timing.

Messaggioda incubo » 28/02/2017, 17:48

Before doing damage again, starts from this base.
You don't have good cylinder head.
12° in the max torque range is too much in my opinion.
...e tu la chiami vita sotto i 4000 giri?!...

Leonardo

Feernan
Messaggi: 41
Iscritto il: 24/07/2016, 19:58
Auto: Fiat punto 2013 1.4 8v
ECU: MS2 V3.57

Re: RE: Re: Help tuning spark timing.

Messaggioda Feernan » 28/02/2017, 17:54

incubo ha scritto:Aridaje...


incubo ha scritto:Before doing damage again, starts from this base.
You don't have good cylinder head.
12° in the max torque range is too much in my opinion.

Thanks a lot Leo...
I have a question . What fuel are u running?

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incubo
Messaggi: 3122
Iscritto il: 02/04/2012, 20:21
Auto: Punto Abarth-Panda 4x4 dell'84
ECU: MS2 V2.2
Località: Tra 1.9-2 bar :-)

Re: Help tuning spark timing.

Messaggioda incubo » 28/02/2017, 17:57

I use only 100octane but @ 1.3 bar you can use 95.
100 is better ;)
...e tu la chiami vita sotto i 4000 giri?!...

Leonardo

Feernan
Messaggi: 41
Iscritto il: 24/07/2016, 19:58
Auto: Fiat punto 2013 1.4 8v
ECU: MS2 V3.57

Re: RE: Re: Help tuning spark timing.

Messaggioda Feernan » 28/02/2017, 17:58

incubo ha scritto:I use only 100octane but @ 1.3 bar you can use 95.
100 is better ;)

Here. Only have 95 or 98. I'm running only 98

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incubo
Messaggi: 3122
Iscritto il: 02/04/2012, 20:21
Auto: Punto Abarth-Panda 4x4 dell'84
ECU: MS2 V2.2
Località: Tra 1.9-2 bar :-)

Re: Help tuning spark timing.

Messaggioda incubo » 28/02/2017, 18:24

Better 98.
The important thing is that you learn to use headphones and the knock sensor
...e tu la chiami vita sotto i 4000 giri?!...

Leonardo

Feernan
Messaggi: 41
Iscritto il: 24/07/2016, 19:58
Auto: Fiat punto 2013 1.4 8v
ECU: MS2 V3.57

Re: RE: Re: Help tuning spark timing.

Messaggioda Feernan » 28/02/2017, 19:41

[quote="incubo"]Better 98.
This is the knock sensors}? Immagine

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