[N54Society]

My car is now FBO but it seems like 91 octane is holding me back from unleashing some hidden power lurking around. I have access to E85 and I've been told I can safely run around 30-40% with a stock low pressure fuel pump. Is this correct? Will I see power gains from running this? How do I go about filling my tank? 3/4 tank 91 octane fuel and then the rest E85?

I also understand that data logging will be the single most important thing to do after running this stuff. With that said, which JB4 map should I be running after I mix 1/4 tank of E85 to a 3/4 tank of 91 octane fuel? I'm also running the MHD JB4 backend 91 pump flash. Which flash should I switch to if I end up running E30?

Thanks all.

[PNWN54]

I found that my stock LPFP handles e30 content at best without limping. Log and see how your LPFP is holding up because each car will be different. Here's an ethanol calculator:
http://www.intercepteft.com/calc.html

[N54Society]

Originally Posted by PNWN54

I found that my stock LPFP handles e30 content at best without limping. Log and see how your LPFP is holding up because each car will be different. Here's an ethanol calculator:
http://www.intercepteft.com/calc.html

I forgot to reply to this thread. Thank you! I've since upgraded to the Stage 1 LPFP.