LS3 Turbo E85 tune

[Laserguy]

Finally got the flex fuel tune all dialed in! The car was setup for flex fuel but originally just tuned on 91. But I had a couple issues getting the e85 tune dialed. First flex fuel sensor issues. Then the O2 sensor failed. The final issue was blown out spark. The stock LS coils “round ones” didn’t have enough juice to keep the spark going at high boost and rpm. I upgraded to the Holley Smart Coil kit with the big wire kit. It solved the issue and I was even able to increase spark plug gap.

Here are the 91 numbers to the wheels at 10psi before e85 tune.




Holley Smart Coil upgrade 



E85 dyno run


IMG_5204.MP4



Any guess what the WHP is with E85 and about 18psi?

 

[Kraut_n_Rice]

757+

 

[ChasingSand]

850

 

[Rockwood]

1,100

 

[Lord of the Dunes]

1,050.

 

[FOG]

936

 

[Kevin]

905

 

[Grease Monkey]

823 hp

 

[basketcase]

875 

 

[Bobalos]

956

 

[Jersey_Jeff73]

918

 

[tjZ06]

1,100

1101

 

[Kevin]

 

[Laserguy]

896whp on Westech's dyno. Their dyno seems to read about 10-12% lower, but it's more about getting the tune right and safe. We dialed it in with 0% auto correction to make sure everything was good and safe. After he was happy with everything we set it to 5% auto tune for small changes.

 

[Kevin]

896whp on Westech's dyno. Their dyno seems to read about 10-12% lower, but it's more about getting the tune right and safe. We dialed it in with 0% auto correction to make sure everything was good and safe. After he was happy with everything we set it to 5% auto tune for small changes.

9 hp off from my guess

 

[Rockwood]

9 hp off from my guess

Winner! :biggrin:

896whp on Westech's dyno. Their dyno seems to read about 10-12% lower, but it's more about getting the tune right and safe. We dialed it in with 0% auto correction to make sure everything was good and safe. After he was happy with everything we set it to 5% auto tune for small changes.

Where was it dyno’d the first time?