low lead race fuel

Will running a low lead race fuel harm my 2000 vfr800 fi?

 

Shouldn't hurt it. May very well make it run slower though. High octane is only for high compression to curb detonation.
Race gas won't buy you anything in a stock machine. Low octane = faster burn, high octane = slower burn.

 

Not with catalytic converters or oxygen sensors. http://www.racegas.com/article/38

 

Leaded gas is ancient history.

 

the lead is bad for the cat but if you don't have to pass an emission test its your money to spend. to take full advantage of the fuel you would need a rapid bike 2 or Rapid Bike RACING module to tune the spark advance timing for the fuel.

 

From the Sunoco site above..
We still hear from a few racers who use oxygen sensors with leaded race fuels in their race cars. The useful life of an oxygen sensor used with a leaded fuel is hard to predict, but one thing is certain: it will eventually fail. Some oxygen sensors can last a whole race season when used with a leaded race fuel, while others may only last one race. The useful life depends heavily on the application. Many racers running oxygen sensors and leaded fuels are able to use the oxygen sensor just for tuning purposes, then once tuning is done they’ll pull the sensor out and plug the sensor mounting bung. This is probably the best way to utilize an oxygen sensor where a leaded race fuel is required, and it ensures a much longer useable life for the sensor.

 

I was always under the impression of low oct burns faster and high burns slower. Sunoco says no. Though it may be in the way it's expressed. here's a good discussion on it. http://www.speedtalk.com/forum/viewtopic.php?f=1&t=42156

"Octane increases the 'flash point of the fuel, the specific temp that the fuel will self-ignite. IIRC it's Bolye's Law, pressure and temp, yada, yada. As compression comes up and pressure rises so does the charge temp. Upon ignition of the charge pressure radically rises, if the octane is insufficient the unburned charge on the far side of the 'cloud' can self-ignite, causeing the knock, or ping from the sudden pressure spike. No longer a curved rise in pressure but a sudden spike."

Which in turn burns, actually explodes, faster than it should. I stand corrected, basically.