boola1341

iTrader: (1)

my 02 z28 has a catback exhaust, slp lid,160 degree stat, msd wires, ngk tr55 and the free air mods.....will the 100 octane fuel have any affect in the 1/4 mile? my best time now is 13.5 at 104.

ae13291

iTrader: (8)

hek yea high octane fuel will hav an effect but make sure its unleaded ok and i bet that stuff will be expensive tooo

Sharpe

iTrader: (7)

I've been told that no, it won't, unless you increase timing. lower octane won't hurt it either unless you're getting knock retard. But, that's ujst hat I've read on here. Don't know for sure.

30thanniv

iTrader: (2)

High octane will do nothing unless the car is under gassed now.

Wolfgang427

iTrader: (48)

Up by me they have the Cam2 100 octane unleaded, but the price is $6.99 a gallon. Ouch..

98 Formula

Ouch We have actual round 2$ per liter not gallon

Benjamin Russick

iTrader: (1)

No. 100 octane will do nothing for your car. Higher octane burns slower, which makes it less prone to detonation/preignition, but also less efficient. You want to run the lowest octane you can without any detonation. If you were running higher compression, boost, or squeeze that would be a different story...

BOONE

iTrader: (4)

Benjamin is right.

brad8266

iTrader: (23)

Nope and it may actually make your times worse by moving your flame front in the chamber too late in the stroke. If you dont need the octane it wont ever do anything improvement wise. Plus as already stated, its less efficient.

brad8266

iTrader: (23)

My car loves 100 octane, but its got fairly high compression.

ae13291

iTrader: (8)

well actully if u had the 98,99 or 2000 year camaro then it will make more of a difference becaue those engines are higher compression but the higher the octane the higher the igniting temprature would be for the fuel, and actually u might need that slp timing advance thing to make it work even better but im not sure how good it will work 4 u

99HorseSlayer

iTrader: (1)

six_string_wiz

There was another thread about this.Without the proper tuning(timing,comp,spark)a mostly stock motor wont be capable of pulling the extra power, that higher octane fuels contain.

boola1341

iTrader: (1)

where can i get one of those slp timing advance

Benjamin Russick

iTrader: (1)

Actually, higher octane fuels don't contain any extra power, they contain less. The molecular bonds that must be broken to release the energy are stronger, making higher octane less efficient. That fact that these fuels are harder to ignite is what makes them viable for higher-compression.

Benjamin Russick

iTrader: (1)

Thank you...I try.

Benjamin Russick

iTrader: (1)

91-93 octane will work best in any year stock LS1 that is not suffering from detonation/pre-ignition.

turkey

Put the 100 in and spray it that will make up for the flame moving to the front.

But seriously with what you have you don't need more than premium.

will82

Have you been hanging out with ricers?

DO NOT waste your money on that stuff, your car isn't set up for it.

Because I have a blower and a stock bottom end, I run higher than 93 octane just for safety's sake. But still not 100 or more. 1 can of torco with a full tank = 97-98octane. No extra power because the car was tuned for 93, then run on torco for extra safety/prevention of detonation.

six_string_wiz

Im still doin alot of reading on this topic myself.Due to my lack of "know-how"on this subject I started a thread on this same thing.

It still comes down to tuning your engine for the octane its going to run, or else its pretty much pointless.