whats the highest comp i can run with mixing av and 93 50-50
06-27-2007, 11:12 AM
#1
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JUNIOR BUILDER
Thread Starter
Join Date: Jan 2004
Posts: 77
whats the highest comp i can run with mixing av and 93 50-50
bbc, 572, currently at 9.7-1 comp on pump gas, aluminum heads, marine application.
Looking to make more power by raising the comp , but dont want to buy race fuel. Av gas 100-low lead, is readily available and i heard it makes a really good fuel when mixed 50-50 with 93 octane. What is highest comp ratio i could run with this mix?
Looking to make more power by raising the comp , but dont want to buy race fuel. Av gas 100-low lead, is readily available and i heard it makes a really good fuel when mixed 50-50 with 93 octane. What is highest comp ratio i could run with this mix?
07-11-2007, 06:01 AM
#4
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Location: ID
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Originally Posted by Robert1320
AV gas is poo!
It was created for fixed rpm at altitude. I have seen lots of motors damaged by trying to run AV fuel.
IMHO
It was created for fixed rpm at altitude. I have seen lots of motors damaged by trying to run AV fuel.
IMHO
I ran it for years in my 69 chevelle, 12.5:1 as well as know many guys that did and still do run av gas.
07-12-2007, 09:48 PM
#6
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I know several people who run av gas in high compression motors with no problems, but they use top lube with it as its kinda dry if you know what I mean. However I wouldn't recomend using it as a mixer with unleaded fuel in anything higher than 11 to 1.
Goodluck, Charles
Goodluck, Charles
09-19-2007, 06:00 AM
#7
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Lower air temperatures by 50-250+ degrees
Reduces cylinder temperatures by 300+ degrees
Increase your 87-93 pump gas by 8-20+ points
Increase horsepower safely by 10-15%
Allows you to safely run more boost and timing
Longer more stable combustion expansion and progression
Removes carbon build up from combustion chambers, pistons and valves
Reduces & helps eliminate damaging engine detonation & pre-ignition
No need for expensive racing fuel or additives
We have the cleanest looking system, hands down!! A picture is worth a thousand words so why not take a look by clicking here. You no longer have to struggle trying to find space under the hood. Even if you're one of the fortunate few that has the space (without having to resort to drastic measures such as installing components in the fenders and bumper), we know you won't be happy with the cluttered appearance of the other guy's systems. Our trunk mount systems relocate everything in the trunk for a clean and simple install that only takes 30-45 minutes. Nobody even has to know it's there for those that want to keep it a secret!!
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09-21-2007, 07:24 PM
#8
Senior Member
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Join Date: Jan 2006
Location: La.
Posts: 2,890
Down here in redneck country, we run avgas with some motors up to 12 to 1 and some street blower motors. we just throw in a can of marvel mystery oil per 20 gals of gal. No issues and cheaper than top oil lube. we also wipe/spray down the headers with marvel mystery oil with a mix of oil paint thinner 75% thinner and 25% marvel oil. The headers still look brand new after 2 full seasons on a sprinter, black and shiney, and they never rust.
Zip.
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