higher compression w/ boost = less feul?

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Oct 26, 2004 | 07:19 PM

Scottsi

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higher compression w/ boost = less feul?

im running bbka's bin on my z6 and we have the same setup, but i have high compression pistons and maybe a cam, my question is. since i have a higher compression enginedo i need to run less feul, it keeps fouling out the plugs running his maps

Oct 26, 2004 | 07:25 PM

Dr.Boost

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Joined: Mar 2003

Posts: 21,468

Re:higher compression w/ boost = less feul?

I would say you would run more gas with higher compression.

I bet it has something to do with his elevation compared to yours. (WA-CA)......assuming everything went good with the burn.

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Oct 26, 2004 | 07:33 PM

Scottsi

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Re:higher compression w/ boost = less feul?

its odd cuz i blew a headgasket, so i changed it, and now i was running the same bin as before and it is running hella rich, only now im running 50/50 100 octane and 91 octane. would that have anything to do with it?

Oct 26, 2004 | 07:38 PM

Paperchase013

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Joined: Nov 2003

Posts: 908

Re:higher compression w/ boost = less feul?

higer compression requires higer octane

higher boost (more air) reqires more fuel

Oct 26, 2004 | 07:40 PM

Dr.Boost

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Re:higher compression w/ boost = less feul?

Quote:

Originally Posted by Paperchaser013

higer compression requires higer octane

higher boost (more air) reqires more fuel

...but higher compression makes more power and more power requires more fuel.
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Oct 26, 2004 | 07:42 PM

Scottsi

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Re:higher compression w/ boost = less feul?

so what should i do? lean it out so it runs right?

Oct 26, 2004 | 07:42 PM

Dr.Boost

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Posts: 21,468

Re:higher compression w/ boost = less feul?

Quote:

Originally Posted by Scottsi

so what should i do? lean it out so it runs right?

Get a W/B.

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Oct 26, 2004 | 07:44 PM

88dx

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Posts: 5,838

Re:higher compression w/ boost = less feul?

Mabey you have one of his older maps that isnt tuned in part throttle. I wouldnt think your fouling out your plugs at WOT. Try to throw some fresh plugs in and do one rip then shut it off and pull over right away then check them?
steve