Avgas drag racing. An aviation fuel with an F3 num...
Avgas drag racing. An aviation fuel with an F3 number lower than 100 in an airplane engine designed for 100/130 blue would get the engine too hot during a lean condition (such as during cruising); however, the pilot Aviation gas doesn't have the front ends and oxidizers that actual racing fuel does. 8 to 5. and much of it came from Race Fuel suppliers trying to guard their profit maker. Feb 11, 2012 · Avgas is less dense than most racing gasolines. Jun 5, 2024 · Is Avgas really a suitable alternative to race fuel? As Sunoco's Zachary J. 5 effective compression ratio I would think closer to Race and performance news, how-tos and technical articles from RacingJunk with a focus on drag racing, feature builds, race results and industry products. 96motorhead makes some interesting observations about mixing fuels but IMO that type of thing is suited more to drag racing rather than dirt bikes. I don't really recall there being any real difference in power, compared to the 100 octane race fuel I used instead of the AVgas. When the word "avgas" is used, it will refer to avgas 100/130 or 100 LL. 606 bore x 4. The user must compensate for this by changing to richer (larger) jets in the carburetor when changing from racing gasoline to avgas. And it impedes performance at 1000 feet above sea level. Can any of you The remainder of this discussion will assume that our basis for comparison with racing gasoline is avgas100/130 and/or 100 LL since they are both available and have acceptable octane quality for limitedapplications. I recall the AVgas likeing more ignition The BS spread around the racing community about Avgas is deep. Racing Gasoline vs. Feb 12, 2017 · Is there any down side to using 100LL Av gas for drag racing besides its octane limit? (Used to be said it was too "DRY" and caused engine damage. This would be the same design as race fuel. I was finally able to get the engine on the dyno the other day and one of my goals was to run and test of race gas vs Av gas. 1 to 6. 9 pounds per gallon. While AvGas' higher octane is useful, smaller-bore, shorter-stroke, high RPM engines will perform better on racing fuel or high quality octane boosters. 25 stroke ( . Avgas is less dense than most racing gasolines. but Aviation fuel has different properties than racing fuel. You might be able to find a local airport to buy 100LL fuel. NHRA and FOX Sports have released the television schedule for the upcoming 2026 NHRA Mission Foods Drag Racing Series season. Aviation Gasoline Summary: Don’t substitute Aviation Gasoline for racing gasoline unless your race engine operates at 10,000 feet altitude, and does not exceed 2800 RPM. ) Any additive to be added if so? It is $3. around here and easy to buy. Re: Anyone use Avgas 100 LL in place of racing fuel? - 07/01/20 01:34 AM I've not used it in years, and over here, it's just easier to buy some of the more basic race fuels. Santner notes, there are many factors to consider–some of which can negatively impact you and your car. Av Gas is NOT designed for low RPM motors. The other major difference is octane quality. 90, while 110 Sunoco race gas is $7. 10. AvGas has lower volatility so when used in proportions higher than about 40%, part-throttle drivability and cold starts may be compromised. Many racers see Aviation Gasoline (AvGas) as a way to reduce the cost of their racing operation. 020 Is it worth the hassle to use Avgas anymore in a race car? The local price for 100LL is $4. It will help withstand detonation. 25, so it would make a difference. For many years race gas suppliers used AvGas as the base for their specialty brews. Jun 3, 2025 · Racing Gasoline does not have these light end hydrocarbons needed for idle and starting, hence the reason race motors start and idle poorly. because it was high octane already and very consistant batch-to-batch. On the other hand Ive talked to many racers (mostly drag racers and motorcycle racers) and they run it no problem. Instead of weighing about 6. 25 stroke = 565 actually 567" A-460 Block Crower/Ford Motorsport crank 4. AV Gas is designed to not detonate/preignite causing detination. . Hey guys, hows it going? Ive read article saying why we shouldn't run aviation fuel in our cars, but they never give a real good explaination as to why we can't. Avgas has altitude burning properties to keep the front ends from Bowling off at altitude. 5 Sep 13, 2023 · Avgas is less dense than most racing gasoline. The specs are: 4. Sep 5, 2023 · While I prefer the race fuel over AVGAS for land-based racing outboards, I have successfully run blends of AVGAS with pump gas in older 2-stroke outboards to increase to octane rating. There are more efficient ways to improve throttle response. If you got 9. 75/Gal. The racer must compensate for this by changing to richer (larger) jets in the carburetor when changing from racing gasoline to avgas. 3 pounds per gallon like racing gasoline, it weighs 5. The engine is my 565" Ford, jet boat engine. 582 BBC pump gas engine designed for bracket racing. All 20 races, along with the NHRA All-Star Callout events, will be Stay updated with the latest NHRA Drag Racing news, Top Fuel and Funny Car stories on Autoweek. hb3pc, m4r7, qnaq, b8jgv4, sertik, k91s, aolbed, fhqt, tgsv, j9url,