You wont find higher octane unless you purchase race fuel. Given that is has been 100* or hotter this week, it is no surprise that your single IC is causing air charge temps to be too high and your engine to ping. Couple that with the gas here being some of the worst in the country and you are left with the choice of improving air charge temps, running 100 ocane at about $5.50 a gallon or backing down the timing.The_Ghost said:I am noticing that with 91 Octane, I tend to get a fair amount of ping.
Is the SC set up for 93 or is there just something up with mine?
Where would I get higher octane fuel in Southern CA (near Long Beach)
Super XR7 said:Hard to believe but here in East Tennesse some of the Pilot gas stations sell 110 unleaded race fuel for $3.99 gallon!
Mike
110, wow, I have never seen better than 106 unleaded anywhere! I may have to stock up on some of that next time I pass through. If happen upon the locations, please be sure to post them.Super XR7 said:Hard to believe but here in East Tennesse some of the Pilot gas stations sell 110 unleaded race fuel for $3.99 gallon!
Mike
BT Motorsports said:All the above mentioned aside, you probably could stand a tune and bigger injectors (wouldn't be surprised if the stockers are gummed up).
Paul
Merlon said:arco, and other cheap gases are not good, i bought a tank of premium arco, ran like crap.
premium chevron is all i use now.
every oil change a bottle of redline fuel injector cleaner work wonders.
right now i pay $3.17 for 91, for the price of octane booster ($10-15)
just buy race gas, or toluene or xylene.
You wont find toluene or xylene in Cali, it's considered very toxic and they really frown upon it being purchased without a permit. There are a few stations that sell 100 octane, but that is not the solution to your detonation. A relatively stock SC does not detonate, even with the poor fuel out here, you have an issue which you need to identify and repair. Don't expect miracles from an IC fan either.The_Ghost said:I have tried my hardest, I cannot find somewhere that sells either toluene OR xylene, and I can't find where to get some fricken 100 octane, either.
I am sure improving the stock interheater will help a lot. Or at least adding a fan should help significantly.
BT Motorsports said:You wont find toluene or xylene in Cali, it's considered very toxic and they really frown upon it being purchased without a permit. There are a few stations that sell 100 octane, but that is not the solution to your detonation. A relatively stock SC does not detonate, even with the poor fuel out here, you have an issue which you need to identify and repair. Don't expect miracles from an IC fan either.
Paul
x182dan said:from what I have heard putting anything over 93 octane in a car is pointless unless the car is tuned for it. I have heard from many guys that race their cars that if you put higher octane race gas in your car your basically wasting money unless the car is tuned for it
Stop being cheap and pony up your $15 bucks to read up on how to properly perform a cylinder balance test in the members section. You don't pull plug wires off.The_Ghost said:by pulling the wire out of the coilpack and seeing which cyl doesnt make it drop off?
I would be surprised as hell if the car is still pulling as strong as it does with just 5 cylinder.s