Sorry to say but octane will not change throttle response unless your engine needs the higher octane...papis_18 said:i would not waste money on anything above 93 if u dont have engine mods. 93 is the best bet, i've tried lower grades and the throttle response was not there.
My 12:1 I usually run 104 octane. Last week when I had the truck at the track I grabbed 5 gallons of c16 race fuel and now running 1 gallon of it and filling the rest with 93. I didnt even wanna mess with trying to run pump gasrt said:a piston raises your compression..which requires higher octane
depending on your cam, port job, valve set-up, flow rate....also have an impact on on your octane rating....they can actually lower your needed octane rating slightly. a 12:1 compression motor could possibly run on pump gas if built right....(raptor 660 motor)...although I wouldn't give it a try with my motor! :lol:
lolz sounds like placebo. but when i use 87 i cannot feel the power until higher rpms but when i use 93 i can feel the power right when i push the throttle. i am going to run 87 next time i fill up just to make sure im not experiencing placebo lolz.rt said:I tricked a friend into thinking I was putting 94 octane into his quad, when actually I was putting 87 in it..
He had just ran a tank of 87 fuel and said it ran $hitty. He got on his quad and he said it felt more responsive and said it felt like it even had more power...Till I broke the ice,..and I told hime that it wasn't 94 octane but 87 instead......
I think it purely psycological when most say that the bike runs better on higher octane when the motors designed for 87-89. But if you must pay higher at the pump to let yourself pretend that your getting more hp and your bike is running better,..go for it!
I tried 94 on my bike before and it actually felt like it was loosing power.
This is my opinion, not fact: I would think that if you out 110 octane in a stock motor, it would run like $hit. The higher comp piston actually helps detonate the fuel.. similar to deisel (the motor uses piston compression to ignite the mix rather than a spark plug). higher octane needs more energy to ignite, or can take more energy than lower octane before it ignites. the higher comp pistons act as a catalyst to help the higher octane fuel ignite with a stock plug.
if that compression isn't there to help out with the ignition phase, I would think that there would be a lot of un-burnt fuel running around,..(especially a gap of 87 to 110 octane),. making the motor appear that its running rich, and possibly back firing.
Like I said my opinion!
Pump octane is what's advertised on US pumps, (R+M)/2. R in that equation is research octane, and it's included because in some countries outside the US research octane is how the fuel is labeled.als660r said:My 05 owners manual says " engine is designed to use pump octane number of 86 or higher or a research octane number of 91 or higher "
Also watch out for methanol. your low power on 87 may be caused by gasohol.
this is what i was saying also, there has to be a reason for the power loss.Desert Racer said:I run 87 or 91. I noticed a little difference in bottome end power and in top end too. With 91 octane I could feel the bike wanting to pull harder and keeping pulling. With 87 it was sluggish and felt like I was maxxed out even though i now it could pull a little more.