High Octane fuel??
Race Director
Joined: Mar 2005
Posts: 11,549
Likes: 27
From: Southampton NJ
The drop in performance is enough to measure. I ran out of fuel at the track one time and had to use 100 octane (might have been 98) and my ET and trap went down. Add to that the fact that was 2x the price of pump gas, I no longer to try to save the last 20 - 30lbs by showing up with an 1/8 tank.
Melting Slicks
Joined: Mar 2008
Posts: 2,835
Likes: 5
From: Avon Park FLORIDA
St. Jude Donor '08-'09-'10
General Aviation fuel is 100ll, blue, 115/130 Green is only avaliable overseas.
Le Mans Master
Joined: Jun 2004
Posts: 6,269
Likes: 50
From: Dallas Texas
St. Jude Donor '06-'07-'09-'10
Avgas 115/130 was used years ago in the USA mainly for big radial engine aircraft. For example, the Pratt & Whitney R-4360 Wasp had a 6.7 compression ratio with a 5.75" bore and 6' stroke. They were low reving, but needed the higher octane because of the very large cylinder quench area.
Melting Slicks
Joined: Mar 2008
Posts: 2,835
Likes: 5
From: Avon Park FLORIDA
St. Jude Donor '08-'09-'10
Avgas 115/130 was used years ago in the USA mainly for big radial engine aircraft. For example, the Pratt & Whitney R-4360 Wasp had a 6.7 compression ratio with a 5.75" bore and 6' stroke. They were low reving, but needed the higher octane because of the very large cylinder quench area.Since the round motors are allmost all gone, the fuel is only avaliable in the Island and South America, where they use them.
Thread Starter
Instructor
Joined: Aug 2007
Posts: 203
Likes: 0
From: Denver CO
Thanks for the heads up. The guy who runs the Corvette shop I had the Vortex installed at has been running his business for over 20 yrs. I figured if he had a bunch of problems with the Vortex, he wouldn't be installing them. I'll be sure to ask him about it though!!!
Melting Slicks
Joined: Mar 2008
Posts: 2,835
Likes: 5
From: Avon Park FLORIDA
St. Jude Donor '08-'09-'10
I've run a Vortex Rammer, it worked good, no problems, that being said I now run an LPE unit
and it's about the same setup, except it has a much better Filter and cone design.
I swapped to 100mm Maf so the Vortex no longer fit.
and it's about the same setup, except it has a much better Filter and cone design.
I swapped to 100mm Maf so the Vortex no longer fit.
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Safety Car
Joined: Sep 2007
Posts: 4,359
Likes: 6
From: Los Alamitos California
St. Jude Donor '09
San
