How much more fuel?

[Steve V]

I am going from GT 3255 to a GT6131 and am wondering much more WOT fuel is necessary at 16-17 psi boost levels. I have an extender and translator. So I can add 10% in the trans and I think about another 10% in the chip. That's 20% total enough

 

[Marc87GN]

I am going from GT 3255 to a GT6131 and am wondering much more WOT fuel is necessary at 16-17 psi boost levels. I have an extender and translator. So I can add 10% in the trans and I think about another 10% in the chip. That's 20% total enough

The Extender will compensate. I had the Extender with stock turbo and 60 lb injectors and it drove like stock. I then added a built block, P&P heads/intake, PT6152E, FMIC, etc and the O2s still stayed in the low 800s without me doing a thing. Since the computer can see the additional airflow(from 320s-480s in my case), it will add fuel. I run 8% with my setup because I'm running 20-21 psi on 93 octane. The most KR I have seen was 1.1 and that was at 6%. Now I see 0.7 max. @ 8%. I have an LM-1 that I'm getting the bung welded today. I will be able to tell you what the A:F will be. This is also without adding any with the chip and just the Translator.

 

[Ttype6]

I think about another 10% in the chip.

You can't add W.O.T. fuel in any adjastable chip perameter in an Extender chip. You can only change W.O.T. with the translator ( +/- 14%). If,after adding the max ( +14%),you can't achieve a satisfactory o2 reading you'll have to send the chip to Full Throttle so they can add W.O.T. fuel to the chip program.

 

[Steve V]

That's right. I forgot about the extender works like that. Turbotweak has the WOT fuel adjustment..LOL...thanks guys.

 

[chris2316]

The Extender will compensate. I had the Extender with stock turbo and 60 lb injectors and it drove like stock. I then added a built block, P&P heads/intake, PT6152E, FMIC, etc and the O2s still stayed in the low 800s without me doing a thing. Since the computer can see the additional airflow(from 320s-480s in my case), it will add fuel. I run 8% with my setup because I'm running 20-21 psi on 93 octane. The most KR I have seen was 1.1 and that was at 6%. Now I see 0.7 max. @ 8%. I have an LM-1 that I'm getting the bung welded today. I will be able to tell you what the A:F will be. This is also without adding any with the chip and just the Translator.

marc your gonna like the tuning that the lm1 gives you , i have one and love it!