StreetStalker

I'm wondering if i can pick up some more power by running some 100-104 unleaded gas?

LME 347 11:1 comp.

camaroextra

iTrader: (10)

Are you getting knock retard?

pianoprodigy

iTrader: (1)

No, you will probably lose power.

peterock98

iTrader: (25)

I was told 93 is fine,that the 100-104 octane is bad for the O2 sensors.

Quik

iTrader: (7)

leaded is bad for 02s not unleaded race fuel


unless you need the extra octane dont bother

peterock98

iTrader: (25)

Cartek told me 93 is good.They claim high octane will ruin the O2's

Quik

iTrader: (7)

yes leaded will harm them over time

N4cer

iTrader: (11)

What problems are you having that make you think you need the increased resistance to predetonation? Is your engine throwing a knock sensor code?

85ta383

iTrader: (18)

it smells good

GuitsBoy

iTrader: (4)

Probably not. 11:1 is usually fine on pump gas. No need for race gas unless you have SUPER high compression and youre getting ping or youre tuner kept your timing low to combat ping.

StreetStalker

Nah! no KR just starting a thread to get something different going. I was curious as to see if the car would perk up a bit with it but on the other side with a stock comp. motor i have seen cars slow down a tad because the motor would run hotter temps. and negate the benefits of running higher octane gas.

Beast96Z

iTrader: (21)

Motors make peak HP on the brink of detonation. Adding octane will pull you further away from detonation, thus loosing power. Adding octane will make the mixture burn slower, and without tuning to run higher timing to burn it, it will not help. Always run the least amount of octane you can get away with.

Biggs

Will you gain hp? only if you have knock retard taking place.
Motors that have been on race gas are nice to take apart, they smell good and everything is cleaner. However, I have seen cars slow down on race fuel because they lacked the compression. High octane fuel will not hurt o2's, leaded fuel will ruin them quick.
11:1 347, unless your cam is tiny I would save the money, unleaded race fuel is expensive.
It would be worth the money with a big dose of nitrous or a motor that makes a lot of horsepower in a hot climate. High horsepower motors break things when they detonate.
Like Beast96Z mentioned, Your best horsepower is when your on the ragged edge of detonation.

orangeapeel

iTrader: (18)

Almost sounds like a shot at his abilities! haha.

ChaseSS

iTrader: (17)

you will benefit from it if you up the timing otherwise kind of pointless

orangeapeel

iTrader: (18)

Run some VP C-12 through it. You will see a little bit more power. That is Leaded Fuel by the way though.

94 F-body

iTrader: (1)

A buddy smoked his o2`s in aa `97 LT-1 with VP 102 leadded gas,so beware. Usually you need more than 91 when you have 1- hi compression, 2- lots of timing, 3-injection NOS For stock or a tic above you usually don`t see enought to justify the cost of it. The same buddy crushed a piston on 150 shot of NOS wile running 91 octane in his `01 WS-6, so BEWARE, that is all I can say and stress.