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Old 02-18-2007 | 02:02 PM
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gkamysz
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Default RE: Raising compression for zero nitro

In my research four stroke compression ratios vary widley. From roughly 7.5:1 to almost 15:1 geometric, which is the only figure used for four strokes. Saitos have the highest compression ratios.

http://www.i4cproducts.com/compression_readings.htm