[Diy_efi] Knock retard and Race gas

[Mike]

fwiw:
Over here in Perth, Western Australia it appears that the PULP does
also have a little more energy than ULP, on long country trips I get about
8-10% better mileage and even a little better if I lean it out as well,
the higher octane of PULP does allow me a little more boost as well,
but in the city its just not worth it...

At 02:13 AM 7/12/06, you wrote:
>Isn't there someone on this BB that has a masters degree in Internal combustion??? if not Others might know. On a local club board we are discussing higher octane race fuel ( 100/103) vs standard 98/93 pump fuel and knock. We all know how well it will reduce some knock (KR) that our 3800 series 2 Supercharged ( pontiac grand prix 97-03) cars from compression ( supercharger) of the air mixutre ( which heats it)... It wil reduce the knock via more complete combustion and reducing the KR we get form the supercharger... the question comes up 
>   
>  If a car has 0 knock ( detonation) and you put hight octane gas in the tank for race purposes, does it give you  an advantage, or are you waisting your money??? Personally I think that even if you dont get the advantage of reduced knock your still getting a better combustion and therefore a more power from the cylinder... Yes/NO
>   
>  jim
>
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