Virtual Dyno Chart of my 19T VR-4

[familyMAN]

Lookin good! Surprised you aren't breaking up with AFR's in the 10's on e85. Most target 12.0-12.2.

Do you have an e85 pull at the same boost level and timing as 93 that you could overlay? Would love to see if it added any hp with all else being equal.

[NOMIEZVR4]

I'm sure I have a datalog but my wife was initially logging and making changes on ECUFlash so I didn't get a chance to label the initial runs...I"ll look though. Just gotta figure out which one it is.

Yeah surprisingly, its got no breakup at all. Pulls pretty good the whole way through. I WILL lean it out to 12.1 to 12.2..

[NOMIEZVR4]

I *THINK* this is it...the higher number is pump...the lower is e85..keep in mind this was pretty rich initially because I still had to alter my injector scaling settings as I kept tuning..

[Ange]

I noticed you are running evo9 maf(399)

just wanted to point out that the scaling and smoothing tables are slightly different from evo 8 maf.

(this should be something Greg should be pointing out in his faq's)



remember to change in "edit map defentions" to the scalings "airflow8" and "unit16" before you make the changes.

[NOMIEZVR4]

I didn't know evo 9's had different scalings for the MAF. What are the part numbers for the evo 8 MAF's? I thought they were 399?

[Chris@Rvengeperformance]

I noticed you are running evo9 maf(399)

just wanted to point out that the scaling and smoothing tables are slightly different from evo 8 maf.

(this should be something Greg should be pointing out in his faq's)



remember to change in "edit map defentions" to the scalings "airflow8" and "unit16" before you make the changes.

interesting, first I've heard that. If the car is tuned already I'd just leave it alone though, it doesn't matter what specific values you use as long as you get the afr and load reasonable (to have your timing fall in line).

[llabmik2]

They are both 399 MAF's, as far as part numbers go. I have seen Evo 9 mafs go 0.8-1.5 points leaner on a Evo 8's. First we thought it was the head flow, and turbo flow is why the scaling were different, but as soon as 9 mafs started going onto 8's and they were leaner the explanation became that the part numbers are the same but the series are different....Kinda died there and really hasn't been looked into to much after that.

[NOMIEZVR4]

So if part numbers are same, how to determine if its from an 8 or 9?