I also found fuel info on Pag 51, 52 & 53......
Interesting point, Pud - Adding Ethanol to gasoline actually serves to effectively INCREASE the octane rating (not that I would recommend it)... Seems counter-intuitive, mebby... :tard::tard:The decal on my tank cover from my '01 says to use only 90+ octane. I generally use 91 or 93 octane, whatever the highest octane is available. But the main reason is the low octane and mid-grade octane gas here in MN has around 10% ethanol in it, and some want it to be 20% by 2013. Some stations offer premieum gas for Motorcycles, snowmobiles and collector cars that has no ethanol added. Thats what I like to use.
brocks says that and its true but if running high octain can keep the motor safe and allow more timing and run a leaner tune.then there is more power
operative word is "when tuned right". Just adding octane by itself will not add power.we have a dyno at work(whitch i LOVE) and ive seen a lot of incredable things but runing high octain fuel with a booster can make GREAT HP when tuned write.
thats write but if someone wants it tuned properly with the fuel they run thats what you do we had an LS1 on normal fuel and 12.7 and 22 degress it was close to ping and it made 243 KW at the wheels then he wanted octain booster and good fuel and we got 255 KW at the wheels but it was MAF less all along sorry i forgot to tell you we ran 12.9 and 27 degrees and it still didnt want to pingoperative word is "when tuned right". Just adding octane by itself will not add power.
I've also seen incredibles numbers on a dyno, and then had to re-tune, add fuel and take out timing because it was too lean and to much advanced for real world driving.
arm is that an LS1 this car im talking about now is turboed and the motor is stock and with a fuel system that is not on it yet but we had it on the dyno and 12 pounds and 12 degrees of timing at 12 to one is point bad ping But it didn't at that set up.one bit more of timing /boost/or AFR/would of killed this motor when the fuel system is on it it should make 500 as a guese at the moment with springs. its a GT 55 garett sorry think GT 42my stock LT1 with 7 psi on 93 octane made 450 RWHP, 560 TQ at 11.8 and 32 total advance.
Ran around all the time on the street at 16 psi with no problems, on 93 octane. It's all about the tune.
Thats a very important fact right thereAlso, engine damaging detonation can occur long before you can actually hear "knock", so that isn't an indicator either.
Pulling plugs and using a magnifier and light to look for speckling is the best way. Slight detonation will loosen the carbon deposits and speckle the plug porcelin, so that will tell you there is a problem.
:werd:The deal was (if I recall correctly) Gadsen and crew did a lot of testing, including tear downs, and came to the conclusion you didn't need anything more than 87 on a stock motor, on the drag strip.
Obviously Kawi chose a "safe" octane number, for the majority of normal riders....
Your results may vary! LOL!