AV gas ?

Ed Wright · 03-17-2018, 02:48 PM

Quote:

Originally Posted by BA1927

I have a tid bit for you guy's who may or may not know - if you purchase any race gas at the pump don't expect it to tech at an NHRA event - I believe the problem to be that the tank's being vented to outside air does something to the SG of the fuel - Just my $.02 from my "OLD LOG BOOK" - Bob

I have seen the same thing. I only buy mine from sealed drums.

GTX JOHN · 03-17-2018, 03:17 PM

Rod: If 100 Octane Unleaded is sufficient...The Arco Station in Boulder City has it at
the pump.

03-18-2018, 02:48 PM

AV Gas will not pass NHRA fuel check, there is no spec card because it's not an approved fuel. Approved fuel that checks perfectly out of a freshly unsealed drum will not pass tech if left open to the atmosphere for even a very short period of time, less than an hour for most. If you're running a class that requires fuel check it's best to get it at the track/race and keep it sealed up tight and out of sun light if it's in plastic jugs. If there is any doubt have the fuel check guy test it before you put it in the car. Another tip, if you run a car that requires fuel check DO NOT EVER put unleaded fuel in the tank as it will contaminate the entire system and your "good fuel" will not pass until you've completely flushed the fuel system several times with good fuel.

Jackie McCracken
former NHRA D4 Tech and fuel tester

Mark Yacavone · 03-18-2018, 09:21 PM

Quote:

Originally Posted by Jackie McCracken

AV Gas will not pass NHRA fuel check, there is no spec card because it's not an approved fuel. Approved fuel that checks perfectly out of a freshly unsealed drum will not pass tech if left open to the atmosphere for even a very short period of time, less than an hour for most. If you're running a class that requires fuel check it's best to get it at the track/race and keep it sealed up tight and out of sun light if it's in plastic jugs. If there is any doubt have the fuel check guy test it before you put it in the car. Another tip, if you run a car that requires fuel check DO NOT EVER put unleaded fuel in the tank as it will contaminate the entire system and your "good fuel" will not pass until you've completely flushed the fuel system several times with good fuel.

Jackie McCracken
former NHRA D4 Tech and fuel tester

Just so you guys know, only a few years ago, there was an approved fuel that AV gas could be passed off as .Several of the more shall we say, budget conscience racers were using it. Someone upstairs must have caught wind of this, and it was removed from the approved list.

Rsmith38 · 03-19-2018, 08:25 AM

Was that VP-C9? I set the record one year and after making a run at the points race next year they said C9 is not in the book. Had to switch to C-10.
Questioned why and was told nobody used it?

03-17-2018, 03:17 PM	#2
GTX JOHN VIP Member Join Date: Jun 2009 Location: Boulder City, Nevada 89005 Posts: 2,737 Likes: 2,814 Liked 2,489 Times in 699 Posts	Re: AV gas ? Rod: If 100 Octane Unleaded is sufficient...The Arco Station in Boulder City has it at the pump. __________________ John Irving 741 Stock 741 Super Stock Last edited by GTX JOHN; 03-19-2018 at 02:55 AM.

03-18-2018, 02:48 PM	#3
Jackie McCracken Guest Posts: n/a	Re: AV gas ? AV Gas will not pass NHRA fuel check, there is no spec card because it's not an approved fuel. Approved fuel that checks perfectly out of a freshly unsealed drum will not pass tech if left open to the atmosphere for even a very short period of time, less than an hour for most. If you're running a class that requires fuel check it's best to get it at the track/race and keep it sealed up tight and out of sun light if it's in plastic jugs. If there is any doubt have the fuel check guy test it before you put it in the car. Another tip, if you run a car that requires fuel check DO NOT EVER put unleaded fuel in the tank as it will contaminate the entire system and your "good fuel" will not pass until you've completely flushed the fuel system several times with good fuel. Jackie McCracken former NHRA D4 Tech and fuel tester

03-19-2018, 08:25 AM	#5
Rsmith38 Member Join Date: Mar 2011 Posts: 186 Likes: 0 Liked 28 Times in 15 Posts	Re: AV gas ? Was that VP-C9? I set the record one year and after making a run at the points race next year they said C9 is not in the book. Had to switch to C-10. Questioned why and was told nobody used it?