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Old 11-17-2009   #8
scheides
flips McGee
 
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Re: Speed Density on Evo ECU

So, I did a little research today, here's my plan.

I'm going to start with the phenom out-of-the-box 96531706 rom. My car has the GM IAT sensor and evoX MAP sensor on it already so lots of the settings should work 'out of the box' but I'll be double-checking everything.

http://forums.evolutionm.net/ecuflas...hramod-v7.html
(evo8 option5 in post #2)

After some reading, apparently the big trick is getting the car to line up your current load values with its new kpa values. Seems like roughly 1:1 is a good place to start, but since JohnBradley posted this, I think I'll try it:

http://forums.evolutionm.net/7674344-post25.html
Quote:
Originally Posted by JohnBradley View Post
I have been finding the ratio is definitely off from 1:1 like I had posted originally. The ratio is non-linear but I have it here for those that want to try it out:

MAPVE-

41-40
61-63.5
101-103
121-124
340-430

Kpa to load will be pretty close to spot on with the 4 bar, your fuel map will look pretty close as well.

These numbers work for me on my 3586, stock turbos, stock appearing turbos, 3582s, Evo3 16Gs, etc.
Another approach is making everything 1:1, and then foking with the MAF smoothing table:
http://forums.evolutionm.net/ecuflas...irst-test.html

I'm going to base everything and try and get back as near as possible to the tune that shane put on my car w/ the MAF, and after I get the car running and driving, I'll work on WOT fuel/timing.
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