924/931/944/951/968 Forum Porsche 924, 924S, 931, 944, 944S, 944S2, 951, and 968 discussion, how-to guides, and technical help. (1976-1995)

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Compression Ratio

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11-27-2021 | 02:11 PM

#1

Gasngo

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Compression Ratio

What is the ratio for a 84 model? I have looked up data here and there and found more than one set of numbers.

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11-27-2021 | 02:58 PM

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931guru

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The USA models had 9.5 to 1; the ROW models had 10.6 to1.

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11-27-2021 | 07:35 PM

#3

Gasngo

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Thanks I ran into conflicting info. The Lindsey site said 9.5 which I figured was correct. Next phase of planning.

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