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Join Date: Jul 2005
Location: San Jose
Posts: 4,274
Question Pistons Euro vs. USA

I am going to be pulling my 3.2 apart this weekend for some top end work and I would like some input on pistons choices. I've done plenty of engines with the USA Mahle pistons with the 9.5 : 1 compression ratio but have not done one with the Euro. 10.3 : 1. My question is; am I going to have a detonation problem running the Euros on 91 octane fuel? Everything on the engine is original stock condition. The DME chip is original as well. I will be upgrading the chip shortly with one of Steve Wong's. I'm looking for a little more get up and go but not at the risk of a detonation problem.

Thanks in advance.

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Old 02-09-2006, 11:09 AM
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