race fuel vs av gas
- Thread starter M1K
- Start date
twin turbo
Active VIP Member
I"ll see what happens,Ken dosen't open till Thur.Cant get any parts till then.I could ride my 800xp too,,I"ll have to check on room"s.I would stay in Valemount anyhow and just drive everyday....just in case i want to go to renshaw later.....
dooryder
XP V.I.P. Member
when does steve get back from his trip??
For a deffinate answer call Jordan at vp calgary 1-866-vpfuelsand he will give you the lowdown on the differance of fuels ,like avgas being 100-110 lowlead well in canada they cannot sell leaded fuel for comercial or private use only recreational (racing ) use so the only lead it has is what was in the tanks when they changed to nolead years ago and a motor octane of 96 and made for 10000ft or more . A little better than premium but no race fuel level ..
glengine
Active VIP Member
HA I THINK I KNOW VP FUELMAN.. i THINK THAT I MIGHT WORK WITH HIMM... I'm glad to see that someone posted something on here that seems to know the differences... If you build a sled and do something to add 75-100+hp output on the motor. Would yo9u honeslty expect to be able to run the same fuel..... I built a turbo M1000 for a guy at the shop i work at, it runs oin vp111 or equivelant, and makes like 280hp!!! and 200ftlbs of torque!!! And thats only at like 10lbs boost... The sled weighs in at like 475lbs dry... It's a true Turbo yammy Eater... Oh soory it just spiuts em out... An new yam Fx nitro w/o turbo is 603lbs with only like 1 1/2G of fuel in it.........
hintonatv
Active member
Listed below are the four basic qualities of fuels. As in everything, there are trade-offs. You can't make a racing fuel that has the best of everything, but you can produce one that will give your engine the most power. This is why VP produces different fuels for different applications. The key to getting the best racing gasoline is not necessarily buying the fuel with the highest octane, but getting one that is best suited for your engine.
1. OCTANE: This does nothing more than rate a fuel's ability to resist detonation and/or preignition. Octane is rated in Research Octane Numbers, (RON); Motor Octane Numbers, (MON); and Pump Octane Numbers (R+M/2). Pump Octane Numbers are what you see on the yellow decal at gas stations, representing the average of the fuel's MON and RON. VP uses MON because this test method more accurately simulates racing conditions. The conditions under which fuels are tested using the RON method are not as demanding, thus the number is normally higher than the MON rating. This leads many other fuel companies to rate their fuels using the RON in an effort to make them appear more resistant to detonation. Don't be fooled by high RON numbers or an average -- MONs are the most relevant ratings for a racing application. Be aware, however, the ability of fuel to resist detonation is a function of more than just octane.
2. BURNING SPEED: This is the speed at which fuel releases its energy. At high RPMs, there is very little time (real time - not crank rotation) for fuel to release its energy. Peak cylinder pressure should occur around 20° ATDC. If the fuel is still burning after this, it is not contributing to peak cylinder pressure (which is what the rear wheels see).
3. ENERGY VALUE: An expression of the potential energy in the fuel. The energy value is measured in BTUs per pound, not per gallon. The difference is important. The air:fuel ratio is expressed in weight, not volume. Generally speaking, VP's fuels measure high BTUs per pound and thus, have a higher energy value. This higher energy value will have a positive impact on horsepower at any compression ratio or engine speed.
4. COOLING EFFECT: The cooling effect on fuel is related to the heat of vaporization. The higher a fuel's heat of vaporization, the better its ability to cool the intake mixture. A better cooling effect can generate some horsepower gains in 4-stroke engines, and even bigger gains in 2-stroke engines.
1. OCTANE: This does nothing more than rate a fuel's ability to resist detonation and/or preignition. Octane is rated in Research Octane Numbers, (RON); Motor Octane Numbers, (MON); and Pump Octane Numbers (R+M/2). Pump Octane Numbers are what you see on the yellow decal at gas stations, representing the average of the fuel's MON and RON. VP uses MON because this test method more accurately simulates racing conditions. The conditions under which fuels are tested using the RON method are not as demanding, thus the number is normally higher than the MON rating. This leads many other fuel companies to rate their fuels using the RON in an effort to make them appear more resistant to detonation. Don't be fooled by high RON numbers or an average -- MONs are the most relevant ratings for a racing application. Be aware, however, the ability of fuel to resist detonation is a function of more than just octane.
2. BURNING SPEED: This is the speed at which fuel releases its energy. At high RPMs, there is very little time (real time - not crank rotation) for fuel to release its energy. Peak cylinder pressure should occur around 20° ATDC. If the fuel is still burning after this, it is not contributing to peak cylinder pressure (which is what the rear wheels see).
3. ENERGY VALUE: An expression of the potential energy in the fuel. The energy value is measured in BTUs per pound, not per gallon. The difference is important. The air:fuel ratio is expressed in weight, not volume. Generally speaking, VP's fuels measure high BTUs per pound and thus, have a higher energy value. This higher energy value will have a positive impact on horsepower at any compression ratio or engine speed.
4. COOLING EFFECT: The cooling effect on fuel is related to the heat of vaporization. The higher a fuel's heat of vaporization, the better its ability to cool the intake mixture. A better cooling effect can generate some horsepower gains in 4-stroke engines, and even bigger gains in 2-stroke engines.
glengine
Active VIP Member
Good job hintonatv.. It;s amazing how many misinformed people there can be out there...
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