110 Octane racing fuel - advantages?
Melting Slicks
Joined: Nov 2000
Posts: 2,663
Likes: 3
From: Palm Harbor FL
Re: 110 Octane racing fuel - advantages? (-HIC-)
No detonation on high compression engines and allows for more timing advance without detonation fro strip purposes due to the fact that it burns slower. I do not believe that there is any advantage for a stock application.
Safety Car
Joined: Aug 2000
Posts: 3,711
Likes: 43
From: San Antonio TX
Re: 110 Octane racing fuel - advantages? (-HIC-)
It thins your wallet a lot more than pumpgas and, theoretically speaking, can improve your acceleration due to the reduction in overall mass. I believe the overall improvement is statistically insignificant, though. ;)
Drifting
Joined: Dec 1999
Posts: 1,462
Likes: 1
From: Reno nevada
Re: 110 Octane racing fuel - advantages? (-HIC-)
Unless your having to retard your timing because of ping on 100 or 105 octane your actually going to produce less power with overboard octane fuels. Local drag racers only use 105 with 12.5 C/R motors.
It's a fairy tale that we have all heard. "Yep, I went to the airport and filled my tank with AVGAS and my car is twice as fast and has flames shooting out the exhaust pipes!"
It's a fairy tale that we have all heard. "Yep, I went to the airport and filled my tank with AVGAS and my car is twice as fast and has flames shooting out the exhaust pipes!"
Burning Brakes
Joined: Nov 2000
Posts: 948
Likes: 0
From: Johnston Iowa
Re: 110 Octane racing fuel - advantages? (Lt1er)
The one advantage that you can get with the 110, 112, & 114 octane racing gas might be that these fuels still contain lead.
In an old stock motor this could help with lubrication. (i.e. valve guides, seats, rings).
With a newer lower compression motor with hardened valve guides, seats etc... I see no advantage at all to spend the extra cash.
In an old stock motor this could help with lubrication. (i.e. valve guides, seats, rings).
With a newer lower compression motor with hardened valve guides, seats etc... I see no advantage at all to spend the extra cash.
Safety Car
Joined: Mar 2001
Posts: 3,725
Likes: 0
From: Rochester NY
Re: 110 Octane racing fuel - advantages? (-HIC-)
What is your CR? If it is stock or 10 to 1 or lower your money is the only thing that will go faster. Also it is hard to get a good plug reading as a novice with race gas. It runs so clean you can't easily tell when you’re running fat. I ran 110 in my 12.5 to 1 383 SBC and 116 with the NOS. In both cases I felt it was over kill but I also never had a detonation problem.
Joe
Joe
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Melting Slicks
Joined: Mar 2000
Posts: 3,206
Likes: 0
From: WANTED: '68 rear valance with b/u light assemblies IM, e-mail, or PM me here. Thanks!
Re: 110 Octane racing fuel - advantages? (-HIC-)
Any octane over and above what is needed to prevent pre-ignition and detonation is a waste and can, theoretically, degrade performance due to slower burning rates (lowers cylinder pressure).
Intermediate
Joined: Jun 2001
Posts: 38
Likes: 0
From: West Palm Beach, FL, USA Florida
Re: 110 Octane racing fuel - advantages? (James)
Another advantage (only if you drag race) is that race fuels are blended to the same formula nationwide, all year long (by brand, and type anyway). Gas from your local stations' pumps are reformulated by region, as well as season. I've seen drag cars run consistently to the hundredth of a second with race gas, while the many variations in pump gas through the race season can make the car run differently each race by upwards of a tenth of a second...if you don't re-tune the car. You may not have time for a between round tuneup run during points season either.
