Proper A/F ratio?

vanilla gorilla · #1 06-06-2007, 11:22 PM

Hey, I was just wondering what the A/f ratio should look like on my car when I tune it. Every body knows what I got and the mods are in the sig and my website for reference. I know on a N/A car the perfect mixture would be 14.7 right? But it's defferent on a modded boosted car right? I'm clueless. What would be a good safe everyday A/f ratio to tune my car to? Thanks for any help in advance.

vanilla g

steviek · #2 06-06-2007, 11:48 PM

http://www.automotiveforums.com/vbul...d.php?t=647000

SilvrEclipse · #3 06-06-2007, 11:49 PM

Around 14.7 in vac. but shoot for around 11.5 under boost.

vanilla gorilla · #4 06-07-2007, 01:21 AM

Thanks for the replies.

Mikelb · #5 06-07-2007, 03:09 PM

I'd shoot for around 11... less heat and chance for detonation...

kjewer1 · #6 06-08-2007, 01:16 AM

Quote:

Originally Posted by vanilla gorilla

I know on a N/A car the perfect mixture would be 14.7 right?

NA cars end up running around 12.5 at WOT. This is also what we ultimately shoot for on race gas, if we can get away with it. I've often found that I do best at ~12 even though. For pump gas, as has been said already, shoot for 11:1 on the DSMs, and 11.5 on EVOs. Experiment with it a bit, but these values work out for the best every time. Timing is much more ambiguous, and has a much larger effect on timing and power. This is where you'll spend most of your time.

POST REPLY TO THIS THREAD