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Leaning above 5800 rpm? Input welcomed

Hijinx

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#21
Adam has posted he fuels E30 cars to 300whp with GT2554-GT2560.
Don't see any reason this setup could make it to 300whp.
Hijinx, you made it a good bit past 300whp on straight pump gas, right?
About 314whp, unsafely lol. 295 or so in vDyno.
 


dyn085

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#22
What would be considered bad for STFT? Wouldn't the ECU be trying to add more fuel via STFT if he were going too lean ( if considering he's not out of fuel)?
Theoretically. What did your STFT/LTFT do on the V-Dyno that you had posted where you were having this leaning issue at roughly the same rpm?
 


Hijinx

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#23
Theoretically. What did your STFT/LTFT do on the V-Dyno that you had posted where you were having this leaning issue at roughly the same rpm?
I'm at work now, so I'll have to go back and have a look tonight. Russ has long since resolved it, though.
 


dyn085

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#25
I'm at work now, so I'll have to go back and have a look tonight. Russ has long since resolved it, though.
I figured it was resolved by now, just curious as to how your log does/doesn't compare to this one. All of my tuning learning has basically come from either reading, trial and error, or reverse engineering, and I haven't had any need to follow/learn anything about this because it doesn't apply to my baby turbro.
 


Perfblue15

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#27
My gtx2860 never leaned out that bad, but I used Tune+. Hint, hint.
My 2560 did not either until I got to just about 290whp on E30 but im tuned by Adam as well. I started running out of fuel 6k+ when I tried to chase 300whp on E30. Personally I would point towards the tuner. Who tuned the vehicle ?
 


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#28
Looking at the datazap, I see quite a few head scratchers on there. Your problem is in the tune itself, not the vehicle.
 


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