a/f ratio
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- Dorifto!
- Posts: 65
- Joined: Mon Jun 07, 2004 2:06 am
- Location: CHANIA-CRETE
a/f ratio
Hi there to all I am just making this topic to ask all you what is the a/f ratio that you are using at your engines for 14-20 psi of boost so that it can make maximum power and it can be safe for the engine too. And how much timing are you using at this boost with pump gas.
- Starion VR4
- almost postwhore
- Posts: 1293
- Joined: Fri Jan 09, 2004 5:08 pm
- Location: Brisbane
h
Thats a loaded question. A/F for boost should be 11.7-12.7 in power for safety, cruise 14-15.2, tiing depends on a lot, in my engine i ca use at 3500RPM 27deg, 35 at 6000RPM , it all depends on how cool the inlet temp is, the hotter it is, the more likely to detonate, when I was in snow I could run 40deg at 4000RPM with air inlet temp of 10deg C. Must also add, I have aftermarket ECU. :beer
30PSI,2.4L! Wolf 3D Ver 4. VR4 Head.
AFR for turbo should be 11.5 to 11.8 full load.
N/A should be around 12.7-13.0 (maybe a little leaner if you know the engine).
These are general safe numbers. A turbo engine may make a little more power leaner but it not worth it for the extra risk of detonation.
No way you should run 12.7 AFR on a turbo it will detonate for sure, maybe not today or tomorrow but it will eventually
N/A should be around 12.7-13.0 (maybe a little leaner if you know the engine).
These are general safe numbers. A turbo engine may make a little more power leaner but it not worth it for the extra risk of detonation.
No way you should run 12.7 AFR on a turbo it will detonate for sure, maybe not today or tomorrow but it will eventually
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- Dorifto!
- Posts: 65
- Joined: Mon Jun 07, 2004 2:06 am
- Location: CHANIA-CRETE
timing
does anyone know what the stock timing advance is?
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- Dorifto!
- Posts: 65
- Joined: Mon Jun 07, 2004 2:06 am
- Location: CHANIA-CRETE
timing
i know that i mean about the timing advance curve at WOT with vacuam and with boost.
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