Pistons - domed vs. dish

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01-20-2006, 06:15 PM

n/a_threat

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Pistons - domed vs. dish

Do domed or dish pistons raise your compression? I thought it was domed. Can stock 4.6 heads/valves handle domed pistons?

01-20-2006, 06:18 PM

code3GT

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RE: Pistons - domed vs. dish

cam profiles come into play when doing pistons. I have 5cc dished pistons and 11.25:1 compression.

01-20-2006, 06:21 PM

n/a_threat

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RE: Pistons - domed vs. dish

thanks Code, what is the safest, highest compression you recommend?

Also, what octane do you use? It has to be premium, right?

01-20-2006, 06:25 PM

code3GT

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RE: Pistons - domed vs. dish

Quote:

ORIGINAL: n/a_threat

thanks Code, what is the safest, highest compression you recommend?

Also, what octane do you use? It has to be premium, right?

11.25:1 is pretty close to the limit on pump gas. Yeah, I run premium 93 octane.

01-20-2006, 08:50 PM

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RE: Pistons - domed vs. dish

Quote:

ORIGINAL: code3GT

Quote:

ORIGINAL: n/a_threat

thanks Code, what is the safest, highest compression you recommend?

Also, what octane do you use? It has to be premium, right?

11.25:1 is pretty close to the limit on pump gas. Yeah, I run premium 93 octane.

Really? wow... I've seen 12.5:1 NA B series built and tuned for 91 octane. Perfectly streetable as well.

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