Anyone using E85

[clay69camaro]

I have a Subaru STI and on the forums for those cars there are some people turning out really high hp numbers by switching over to E85.

They also get larger fuel pumps, and really big injectors. Then with the right tune they crank out more hp with less boost, and if they turn the boost up they really crank out more hp.

I myself will be doing it with my STI. on 91+methanol I made 374awhp, but with E85 I'm hoping to hit mid 400's!

I was wondering if that was also a common trend among the classic cars? I haven't seen much of it on here.

[Flash68]

I am considering it and have been closely watching the list of E85 stations in Northern California... it has saturated my area decently but not quite enough for me to convert. I would really like to do this... 105 octane for $3.30 a gallon sounds nice right now.

[64duece]

Yep...been running it about a year or so on a twin turbo 570" bbc. Honestly, I haven't really pushed the tune to take advantage of it (more timing or boost). It's reasonably priced and offers up plenty of "head room" for saftey sake if vs pump gas. We run non-intercooled although have water/meth injection so...advantage goes to the cooler air charge affects aswell.

[clay69camaro]

Nice, Are there still benefits to running E85 on a naturally aspirated build?

[Flash68]

Originally Posted by clay69camaro

Nice, Are there still benefits to running E85 on a naturally aspirated build?

Absolutely. It's really 2 parts of analysis in my mind... one is the octane benefit (105 vs 91 for us in Calif). But then it does consume more fuel apples to apples compared to pump gas, but I don't know about you... I would not care if my MPG went from the current 10 down to 7 or 8. I'll take the ability to tune for more power based on the 105 octane rating.

[skatinjay27]

isn't that 105 rating not a minimum like regular fuels numbers are?