100 Low Lead AVGas - Can I run it?
08-01-2007, 10:06 PM
#1
Drifting
Thread Starter
100 Low Lead AVGas - Can I run it?
100 octane for $3.95 a gallon at the local airpark. Can I run it, or will the low lead (or some other property of AVGas) do damage?
Go ahead, burst my bubble and tell me why I can't. I'm paying $5.99 a gallon for 101 unleaded.
Go ahead, burst my bubble and tell me why I can't. I'm paying $5.99 a gallon for 101 unleaded.
08-01-2007, 11:19 PM
#3
Drifting
Thread Starter
08-01-2007, 11:44 PM
#5
Burning Brakes
08-02-2007, 01:44 AM
#7
Race Director
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JB
08-02-2007, 02:44 AM
#8
Safety Car
I use to run AV gas all the time. The stuff runs great. It's very high quality high octane gasoline. It won't go below 100 octane after sitting for a while. But I would not run it with cats, or on a motor with oxygen sensors. But for a high compression carb motor, it's great. I think there is a unleaded version now. The differnce between AV gas, and Race gas, is race gas will have other additives in it.
08-02-2007, 07:21 AM
#10
Drifting
Thread Starter
Bob
08-02-2007, 09:16 AM
#11
Le Mans Master
JB - I run 25% 101 pump, 75% 91 pump, so that gives me an effective octance rating of 96 I think. I also have a couple of bottles of octance boost in the trunk in case I get caught away from a race gas location. When I go through them I'll be contacting you, I know you're a Torco distributor, have check you prices and read everyone's testimonies.
Bob
Bob
Why not just run the 101?
08-02-2007, 10:31 AM
#13
Drifting
Thread Starter
At 470 RWHP I really don't need to and at $6.00 a gallon that would be over $100 a tank. Conventional wisdom says I "could" run straight 91, but raising the octane level to 96 gives me additional and adequate protection against detonation.
If I'm wrong on this someone correct me......
If I'm wrong on this someone correct me......
08-02-2007, 10:35 AM
#14
Le Mans Master
At 470 RWHP I really don't need to and at $6.00 a gallon that would be over $100 a tank. Conventional wisdom says I "could" run straight 91, but raising the octane level to 96 gives me additional and adequate protection against detonation.
If I'm wrong on this someone correct me......
If I'm wrong on this someone correct me......
08-02-2007, 11:39 AM
#15
Melting Slicks
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JB - I run 25% 101 pump, 75% 91 pump, so that gives me an effective octance rating of 96 I think. I also have a couple of bottles of octance boost in the trunk in case I get caught away from a race gas location. When I go through them I'll be contacting you, I know you're a Torco distributor, have check you prices and read everyone's testimonies.
Bob
Bob
08-02-2007, 03:43 PM
#16
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I use to run AV gas all the time. The stuff runs great. It's very high quality high octane gasoline. It won't go below 100 octane after sitting for a while. But I would not run it with cats, or on a motor with oxygen sensors. But for a high compression carb motor, it's great. I think there is a unleaded version now. The differnce between AV gas, and Race gas, is race gas will have other additives in it.
I used av gas for years in my older carb cars when I worked as an A&P, (got it for free
) but I would not recommend it for your late model Vette.
08-02-2007, 08:14 PM
#17
Drifting
Thread Starter
11-29-2015, 12:19 AM
#18
1st Gear
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JB - I run 25% 101 pump, 75% 91 pump, so that gives me an effective octance rating of 96 I think. I also have a couple of bottles of octance boost in the trunk in case I get caught away from a race gas location. When I go through them I'll be contacting you, I know you're a Torco distributor, have check you prices and read everyone's testimonies.
Bob
Bob
11-29-2015, 09:20 AM
#19
Safety Car
AV gas comes in 2 octane levels here, I ran it for years in my open class flat track motorcycle when I was still ice racing.... Greatest stuff in the world for that purpose since it has a type of ANTI FREEZE in it to prevent it from freezing up a couple miles up in the air! Not suitable for late model EFI cars with cats etc though....
Last edited by dankhts; 11-29-2015 at 09:21 AM.
11-30-2015, 12:19 AM
#20
Le Mans Master
just curious why you're worried about running 91? at 470hp with an LSA, you can't be running that much timing. i was safely making almost 540 on 93 in my TVS LS1.