AVIATION FUEL?
#433493
08/10/09 07:24 AM
08/10/09 07:24 AM
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Joined: Nov 2005
Posts: 518 ny
greenmcode
OP
mopar
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OP
mopar
Joined: Nov 2005
Posts: 518
ny
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Is it safe to run aviation 100 leaded fuel in a 11.75 comp car? Whats the difference with additives to cam 2?
Thanks
1969 A12 R.R. 11.61 117.96 F.A.S.T. STOCK STROKE..
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Re: AVIATION FUEL?
[Re: greenmcode]
#433494
08/10/09 07:36 AM
08/10/09 07:36 AM
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Joined: Jan 2003
Posts: 13,357 Marion, South Carolina [><]
an8sec70cuda
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 13,357
Marion, South Carolina [><]
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Yes it's safe. I ran 100LL AvGas in a 12.2:1 compression 440 on the street and strip for 3 or 4 years w/ no trouble. Not sure what the differences b/t the AvGas and Cam2 additives are, but I know you'll hear a lot of people say not to run it for various reasons. I can tell you from firsthand experience that it works great and is a cheap substitute to race fuel. CHIP
CHIP '70 hemicuda, 575" Hemi, 727, Dana 60 '69 road runner, 440-6, 18 spline 4 speed, Dana 60 '71 Demon, 340, low gear 904, 8.75 '73 Chrysler New Yorker, 440, 727, 8.75 '90 Chevy 454SS Silverado, 476" BBC, TH400, 14 bolt '06 GMC 2500HD LBZ Duramax
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Re: AVIATION FUEL?
[Re: an8sec70cuda]
#433495
08/10/09 07:44 AM
08/10/09 07:44 AM
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Joined: Jan 2003
Posts: 2,763 Walton's Mountain, Pa
Steve1118
master
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master
Joined: Jan 2003
Posts: 2,763
Walton's Mountain, Pa
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It's your choice, but we never had any luck with AVGAS instead of race gas. We had a lot of detonation......it just didn't work. In addition, some AVGAS has some alcohol in it which can deteriorate fuel lines, etc.
I'm not saying not to, but be careful. You get what you pay for. I'm not a gasoline expert, but there are some differences between automotive and aircraft demands....there is more to it than just octane.
"Old age and treachery trumps youth and enthusiasm, every time!" East Central Director / Chrysler Power Magazine www.reasbeckracing.webs.com
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Re: AVIATION FUEL?
[Re: Steve1118]
#433496
08/10/09 08:20 AM
08/10/09 08:20 AM
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Joined: Jul 2006
Posts: 4,595 On the south side of Nowhere
S/ST 3040
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master
Joined: Jul 2006
Posts: 4,595
On the south side of Nowhere
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One of the additives, is to keep it from freezing at high altitudes. I guess, I can see a need for that property. My dad used to run Av-gas in his 371" 1950 Olds and said it made a difference over pump gas. (good stuff, like 1960's Sunoco)
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Re: AVIATION FUEL?
[Re: Rug_Trucker]
#433500
08/10/09 12:40 PM
08/10/09 12:40 PM
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Joined: Mar 2007
Posts: 12,008 Finally a HUSKER again
Moparnut426
I Live Here
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I Live Here
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Posts: 12,008
Finally a HUSKER again
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Id rather lower the octane a tiny bit than destroy my engine. We had a guy around here who crop dusted, and had MANY toys, and before we had any VP reps here, he always ran AV gas, then after finding poor sealing valves, and bad compression he did some reserch and found how dry it was, then He talked with some fuel guys and they told him just add a bit of ATF or some sort of 2 stroke oil to give it some lubrisity, it sure didnt affect his ETs any, he has a walley in his office from his 460 powered t bird. His name is Dale Bittner with Dales flying service. He has an abundance of AV gas so he used it. Now he has access to race gas just as easy as his AV gas so he runs VP.
Kasey
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Re: AVIATION FUEL?
[Re: Moparnut426]
#433502
08/10/09 12:46 PM
08/10/09 12:46 PM
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Anonymous
Unregistered
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Anonymous
Unregistered
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Scot........I've had great luck with the stuff...........been using it for a LONG time and used LOTS of it........and have never had any problems.........Maybe it's different in different parts of the country???.......I've even run in it in a 15 to 1 572 that ran high 9's, back to back at the race track, against race gas and saw ZERO 60 foot, ET, or MPH difference........
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Re: AVIATION FUEL?
[Re: 70dusterjohn]
#433504
08/11/09 02:27 AM
08/11/09 02:27 AM
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Joined: Aug 2009
Posts: 456 corpus christi tex
Cheatham
mopar
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mopar
Joined: Aug 2009
Posts: 456
corpus christi tex
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I worked for a fbo a year ago and was qc for 100ll and jet-a i had endless supply of 100ll and gave 100s of gallons to racers who wanted some, 100ll is a slightly lighter specific gravity compared to auto gas,in other words its lighter in weight,it has no additives compared to auto gas it does have stablilizer cuz some planes sit in hangars for a while, it does not cause corrision, if it did it wouldnt be safe for aircraft, it has ALMOST zero water in it, there is no additive to displace water in gasoline,at high altitudes water will freeze in the fuel lines and would block the fuel to the aircraft motor and down it will go,sumping aircraft fuel tanks are a must before flights, an aircrafts engines toughest chore is to get down the runway and up to speed,so its safe to use just re jet slightly for it and add some marvel mystery oil i can go on and on but hope this helps.
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Re: AVIATION FUEL?
[Re: Cheatham]
#433505
08/11/09 03:10 AM
08/11/09 03:10 AM
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Joined: Dec 2003
Posts: 306 Texas
bogusracer
enthusiast
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enthusiast
Joined: Dec 2003
Posts: 306
Texas
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Quote:
I worked for a fbo a year ago and was qc for 100ll and jet-a i had endless supply of 100ll and gave 100s of gallons to racers who wanted some, 100ll is a slightly lighter specific gravity compared to auto gas,in other words its lighter in weight,it has no additives compared to auto gas it does have stablilizer cuz some planes sit in hangars for a while, it does not cause corrision, if it did it wouldnt be safe for aircraft, it has ALMOST zero water in it, there is no additive to displace water in gasoline,at high altitudes water will freeze in the fuel lines and would block the fuel to the aircraft motor and down it will go,sumping aircraft fuel tanks are a must before flights, an aircrafts engines toughest chore is to get down the runway and up to speed,so its safe to use just re jet slightly for it and add some marvel mystery oil i can go on and on but hope this helps.
How much Marvel Mystery Oil to say 10 gals. of 100 LL Av-Gas?
Or how many ounces per gallon?
Thanks,
Bogusracer
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Re: AVIATION FUEL?
[Re: bogusracer]
#433506
08/11/09 07:12 AM
08/11/09 07:12 AM
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Joined: Jan 2005
Posts: 866 Winnipeg ,Mb. CA.
chryco
super stock
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super stock
Joined: Jan 2005
Posts: 866
Winnipeg ,Mb. CA.
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I have used 100 Octane AV Gas for years as well . No ill effects from it . If it was so bad why would they use it in aircraft engines !!!!!!!!!????
Gas is fer washin' parts ....Alky`s fer drinkin' ...Nitro`s fer Racin'!
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Re: AVIATION FUEL?
[Re: super451b]
#433508
08/11/09 09:19 AM
08/11/09 09:19 AM
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Joined: Nov 2005
Posts: 518 ny
greenmcode
OP
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OP
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Joined: Nov 2005
Posts: 518
ny
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Thanks for the info.. I always run vp or sunoco 110 leaded for around 8 to 9 bucks a gal.. I can get the aviation 100 leaded for 5 bucks a gal..
1969 A12 R.R. 11.61 117.96 F.A.S.T. STOCK STROKE..
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Re: AVIATION FUEL?
[Re: greenmcode]
#433509
08/11/09 09:23 AM
08/11/09 09:23 AM
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Joined: Jun 2003
Posts: 52,972 Romeo MI
MR_P_BODY
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Master
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Romeo MI
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Quote:
Thanks for the info.. I always run vp or sunoco 110 leaded for around 8 to 9 bucks a gal.. I can get the aviation 100 leaded for 5 bucks a gal..
Thats a big drop in octane to go from 110 to 100, will your engine like it
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Re: AVIATION FUEL?
[Re: MR_P_BODY]
#433510
08/11/09 09:53 AM
08/11/09 09:53 AM
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Joined: Nov 2005
Posts: 518 ny
greenmcode
OP
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OP
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Its 11.75comp. Just for cruisin around I think it would be ok.. [image] [/image]
1969 A12 R.R. 11.61 117.96 F.A.S.T. STOCK STROKE..
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Re: AVIATION FUEL?
[Re: greenmcode]
#433511
08/11/09 09:59 AM
08/11/09 09:59 AM
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Joined: Jun 2003
Posts: 52,972 Romeo MI
MR_P_BODY
Master
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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Quote:
Its 11.75comp. Just for cruisin around I think it would be ok..
[image][/image]
I would have to say you were/are over octaned before. I use to use 114 in my car and dropped to a lower octane and went quicker(faster burn rate)
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Re: AVIATION FUEL?
[Re: greenmcode]
#433512
08/11/09 10:03 AM
08/11/09 10:03 AM
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Joined: Aug 2003
Posts: 43,127 Bend,OR USA
Cab_Burge
I Win
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I Win
Joined: Aug 2003
Posts: 43,127
Bend,OR USA
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Quote:
Thanks for the info.. I always run vp or sunoco 110 leaded for around 8 to 9 bucks a gal.. I can get the aviation 100 leaded for 5 bucks a gal..
As a pilot and ex airplane owner I haven't heard of 100 avaition, just 100 LL avaition fuel I use to use the 115-145 octane when it was around back in the 1970 and then they drop that due to the large high performance multi engine aircraft being phase out of service here in our country. They (the oil companys)switch to 115-130 for several years and dropped that when they switch to 100LL. I did see valve seat damage when using the 130-145, I haven't really used the 100LL straight for any period of time in a race car so as far as damage 100LL does have, as already said, additives to increase its shelf life. The other thing is the specific gravity (weight per gallon can be compared with non avaition gasoline) is a lot less than most race gas Race gas is designed to be used in all out racing, aviation gas is designed to be ran at a consanst RPM, usually less than 2700 RPM, and design to be ran at the lean condition( 25 to 75 F degrees rich or lean of peak EGTs) to be rated at 100 octane. If you run it richer it won't have the same power as it does when it is ran lean the last thing is most airplane don't travel close to the ground so the fuel is designed to be ran at higher altitudes, 5000 ft MSL or above is normal
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
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