Originally Posted by
Poppacapp
Has anyone here tuned for C85 on the LT1? I am already setup on a flex fuel tune but am curious about how I should proceed with C85. VP claims a 4% power increase and the fuel is more oxygenated.
Other than changing the stoich, would I need to setup a separate tune for the C85 vs using the flex tables? Other than trial and error with spark, is anyone seeing more spark tolerance vs 70-85% pump E85?
Any info would be appreciated. I have also considered giving FTW Purple or equivalent fuel a try.