CLASS RACER FORUM - View Single Post

Bruce Fulper · 09-27-2009, 02:20 AM

I can tell you from experience ( 4400 sets of Eheads ported, built and/or sold,) that you do not want to use 93 octane. Unless somehow you were able to keep the engine at 160 temp or less 100% of the time. If not, 110 isn't going to hurt you. If you want to find out, mix 110 and 93 50/50 and do an A/B test. I bet you won't see any difference. But don't tempt fate with straight 93 unless you can run way cool.

09-27-2009, 02:20 AM	#2
Bruce Fulper Senior Member Join Date: Aug 2004 Location: So. Cal. Posts: 651 Likes: 4 Liked 54 Times in 33 Posts	Re: octane for this combo.. I can tell you from experience ( 4400 sets of Eheads ported, built and/or sold,) that you do not want to use 93 octane. Unless somehow you were able to keep the engine at 160 temp or less 100% of the time. If not, 110 isn't going to hurt you. If you want to find out, mix 110 and 93 50/50 and do an A/B test. I bet you won't see any difference. But don't tempt fate with straight 93 unless you can run way cool.