So my buddy is putting octane booster in his stock (Neon) SRT-4

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homestarmy

Diamond Member
Apr 16, 2004
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artwilbur.com
Originally posted by: DivideBYZero
Originally posted by: homestarmy
Also, for those of you who don't know anything about octane ratings and why what car uses what, let me give a short explanation.

Octane does not give performance. Octane enables the engine to compress the fuel to a higher amount without exploding. Putting in a higher octane without modifying the engine or its behavior (physically or electronically) is just wasting money. Putting in octane too low will cause the octane to explode prematurely causing detonation or "knock". This can hurt an engine, and a knock sensor on most engines will detect this and retard the timing which will make running that octane safer (but lose performance).

So putting higher octane in a car that doesn't require it is not only a waste of money, it is one of the stupidest things a person can do.

But his car is Turbocharged, so it is NOT stupid and SHOULD give performance if the GM ECU is any good:

You are correct. I should have said "a car that cannot make use of it". I meant to refer to people who have $2000 beaters or economy cars, etc and put in 93 octane. They are the ones that are incredibly stupid. I used to do it now and then when I was younger because of ridiculous marketing and rampant ignorance.
 

lokiju

Lifer
May 29, 2003
18,526
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Well my friend has the SRT-4 with Stage 2 which requires race grade (octane wise) gas to run, it detects if the octane mixture is right or else it won't work, one work around is pushing octane booster to get it to work since you can't really buy racing gas anywhere but at the track.

So I'm sure your friend does feel the difference.
 

lokiju

Lifer
May 29, 2003
18,526
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Originally posted by: fbrdphreak
Originally posted by: DivideBYZero
If the SRT-4 turbocharged, and I think it is, then yes, it should provide more performance.

PS: 'I can feel it in the tires' is a non-sensical comment. Made me LOL though.
Supercharged IIRC

Nope, turbo.