Weird problems while tuning

[ape]

Before I start explaining my problem I just want to say Hello t everyone. Now my problem is not my DSM but my 3000gt vr4. I have a fully built 3000gt with a 42r on it. Now the other day I was doing some street tuning to hold me over before I get it dyno tuned. Now the problem is that in third gear I got the AFR setting pretty good at 11.3 : 1, but when I get on it in 1st or 2nd it goes really rich around 10: 1. I am running on E85 if that makes a difference, also I am tuning with an emanage. Does anyone have an idea or something to point me in the right direction to figure this out?

Thanks

 

[Dsmx17]

unless emanage has a gear based fuel schedule odds are its not seeing full boost in the lower gears so airflow isnt high enough to use the fuel your giving it in third gear+

 

[->PrOjEcTGS<-]

What does your injector duty cycles look like? Generally in 1st and 2nd you're at a lower load therefore your IDC's will be lower. If in third gear your IDC's are close to or over 100% it's probably to the point where it's leaning you out a bit.

Also, the same goes for your fuel pump. If your fuel pump can't flow enough for the injectors you are running, then you'll be leaning out at higher demands, i.e. third gear.

 

[ape]

IDC's are around 80%. I know that my fuel pumps are sufficient enough. I am running dual 255 Wallys and I'm only tuning for around 20psi with the 42r on the street. Im hitting full boost in 1st and 2nd gear. Someone told med to tune in 2nd gear and tune it 1/2 point richer to compensate for being leaner in the higher gears. I dont understand this, because its the same boost in every gear so why is the afr's changing. I'll log my IDC's the next time I go out, so I can see whats going on under different loads.