Fuel.

Rory McNeil · 01-13-2010, 03:45 PM

I also run a low compression 302 in my 85 Mustang, but since NHRA requires an approved fuel, I normally run VP C12.About 6 years ago, I tried the VP Motorsport 110 which was on the approved list, and was quite a bit cheaper, but more often than not, it wouldn`t pass NHRA fuel check. I have heard of several others guys with the same problem, even with fresh fuel from a just opened drum. Since VP is the most popular in this area, I switched to C12, and have never flunked fuel check since. By the way, I have tried normal Chevron 89 & 91 octane pump gas at bracket races, and the car did run a bit faster with the lower grade pump stuff, but you have to ensure that it is all removed before switching back to the race gas, to enter a divisional or national event, as the contamination will alter the readings of the race gas.

01-13-2010, 03:45 PM	#2
Rory McNeil VIP Member Join Date: Jun 2007 Location: from Vancouver BC Canada, now in Nova Scotia Posts: 1,312 Likes: 323 Liked 1,113 Times in 304 Posts	Re: Fuel. I also run a low compression 302 in my 85 Mustang, but since NHRA requires an approved fuel, I normally run VP C12.About 6 years ago, I tried the VP Motorsport 110 which was on the approved list, and was quite a bit cheaper, but more often than not, it wouldn`t pass NHRA fuel check. I have heard of several others guys with the same problem, even with fresh fuel from a just opened drum. Since VP is the most popular in this area, I switched to C12, and have never flunked fuel check since. By the way, I have tried normal Chevron 89 & 91 octane pump gas at bracket races, and the car did run a bit faster with the lower grade pump stuff, but you have to ensure that it is all removed before switching back to the race gas, to enter a divisional or national event, as the contamination will alter the readings of the race gas. __________________ NHRA 6390 STK M/S 85 Mustang