race fuel 99 x1

[weldmachine]

Has anyone run race gas in there buell and can it hurt the engine Iuse to run vp in my motox bikes and it made them run way better cleaner and cooler just looking for info how race gas could run in the buells.

 

[GAXB9R]

Quoted from motorcycleperf.com

The higher the octane, the slower the speed of the burn; the lower the octane the faster the burn.  If the burn is too fast, uncontrolled combustion can occur.  This most often is heard as “pinging” and is commonly referred to as detonation.  This is because instead of burning through top dead center of the combustion stroke, the entire charge is ignited too early and explodes in the chamber and acts as a bomb.  Conversely, if the speed of the burn is too slow, it continues after the useful work can be done in the motor and manifests itself as poor throttle response, reduced power output and increased emissions and fuel consumption.  An engineering fact:  THE MOST HORSEPOWER IS MADE AT THE THRESHOLD OF DETONATION.

I have heard that running higher octane fuel on a regular basis will cause the motor to become used to the higher octane and require it more to run properly. Not sure if this was just an old Army wives tail, but we did have an H1 that was addicted to ether like a crack head to crack.

 

[newyorkbuell]

Take it from me. I ran I would say about 20 gallons in my 2006 xb12 and it cooked my o2 sensor. There is no performance gain from running the fuel the only cool thing is it smells awesome and you get a white pipe. UNLESS you are running a unleaded highly oxegenated fuel then there might be a few ponies gained there but for the money your best bet is motor work.

 

[EricZ]

You will really only benefit from a higher octane fuel when you adjust/tune your ignition mapping and fuel delivery for maximum performance with that particular fuel. Otherwise, you are just burning more expensive fuel.

 

[Extractor]

High Octane fuel has more lead and does let the motor run cooler,it also coats the valves and seats. With todays fuels at the pump which are poor at best, it WILL not hurt anything. If it does not impact your wallet go for it. I run a mix 1/2 VP 110 and hightest pump gas in all my bikes and boat and they never miss a beat...

 

[theMelvster6]

O2 sensors don't like lead...I run 100 octane UNLEADED race fuel fairly often. It also runs richer because it burns slower. Helps with heat and pinging. Is it necessary, probably not, but I like the smell. It won't give you and HP gains.

 

[Jramsey]

O2 sensors don't like lead.

+1,000

 

[Extractor]

Exactly Jramsey...........

Please Please Please do tell....

 

[mtnmason]

from my understanding 100+ octane need only be run with high compression engines. the 10:1 on XBs (and tubers I assume) doesnt really utilize the race fuel if you do run it. in fact it will lead to greater carbon deposit build up over time. the kind of head work needed to significantly boost compression (to say... 12:1) would render our long stroke/pushrod driven motors to the point of total unreliability. the 1125s, on the other hand, might be a different story. additionally, you would want to run a cooler burning spark plug in combo with the race fuel.

I researched this a bit before blowing 50 bucks on 3.5 gallons of sunoco 100.

on a whole other fuel related note - i'm sure i'm not the only bueller that refuses to stop at a gas station with one hose for all three grades of fuel. go figure - chances are the last person pumped 87. as soon as you pull the trigger youre getting nothing but 87 until the whole hose (and however much further it goes inside the machine) empties and starts dispensing 93. seeing as how you're only holding a few gallons- if you buy 93 at a 'one pump chump' -as i like to call it - you're getting short-changed big time!

 

[theMelvster6]

Lead will most definitely foul up an O2 sensor. Just as lead coats the surfaces of the pistons and valve seats, it also coats the O2 sensor. I goes right through the system. Sure it is an awesome lubricant for engine internals, especially for the old harley engines. Metallurgy is so much better these days that it is not as much of a concern. Leaded fuel will, depending on quantity and length of use, destroy O2 sensors. Over time carbon alone will require O2 sensor change. Google it, any high performance/racing forum will have discussions on it. At best you can get HP O2 sensors that will "resist" leaded fuels longer. But our Bosch type will indeed get gummed up and cause your engine management system to malfunction. Most likely with an always rich touble code if you get acel come on. I wouldn't risk the 10 or so octane points you get with leaded race gas. If you run any type of race fuel, run unleaded. On a stock engine you are not gaining anything but a pretty smell.

VP RACING FUELS "Our Most Popular Unleaded C10™ The best non-oxygenated unleaded racing gasoline on the market. C10 does not contain any metal compounds and will not harm catalytic converters or oxygen sensors. Used by national champions in SCCA and IMSA stock classes."