Supercharged/Turbocharged The increase in air/fuel pressure above atmospheric pressure in the intake system caused by the action of a supercharger or turbocharger attached to an engine.

Tuning A/F with boost

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Old Nov 22, 2006 | 06:02 AM
  #1  
matty's Avatar
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Tuning A/F with boost

Alright guys I am really new to this tuning thing so bare with me. I have the emanage figured out, I just dont know what Boosted values I am shooting for.

I know that you wanna see about 11.5:1 a/f through boost, but what type of A/F should I see if Im just kinda at around 1,2,3,4, or 5lbs of boost at WOT ? As Im building boost, do I want the A/F to be at 11.5 right when I got WOT through the entire band ??

What about if Im partial throttle and Im building boost, but my A/F really is normally stoich...or roughly around that area.

Thanks guys
-matt
Old Nov 22, 2006 | 06:23 AM
  #2  
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One thing that I have read on my350z.com is that you should be pulling some timing depending on what kind of boost you are running since I know you can do that with the EU. Mostly in high boost. Not sure but I wonder if you can set the EU to pull timing as you go higher up in the RPM band which will be bringing you to peak boost. Check over in their forums. I think it could be helpful.

Mike
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