2.2L L61 Performance Tech 16 valve 145 hp EcoTec with 155 lb-ft of torque

Piston CR

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Old 10-05-2012, 11:46 AM
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Piston CR

I'm being lazy and not searching as much as I should, but does anyone have a good link or explanation as to which CR would be better? I was thinking about sticking with stock Wisecos (10.0) but not sure what the benefit would be between that and the 8.9. I think I remember that the lower compression is designed for higher boost applications, but wanted to get some more input.
Old 10-05-2012, 05:42 PM
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This depends on what you are building for. If supercharged, go with stock or you will lose all bottom end power. If turbo, you can go either way, 8.9 is just safer. With lower compression you will be able to run higher boost and should have more top end potential. With higher compression you will be able to make more power on less boost, especially down low in the rpm range.
Old 10-05-2012, 05:44 PM
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Originally Posted by bluebalt07
This depends on what you are building for. If supercharged, go with stock or you will lose all bottom end power. If turbo, you can go either way, 8.9 is just safer. With lower compression you will be able to run higher boost and should have more top end potential. With higher compression you will be able to make more power on less boost, especially down low in the rpm range.
^^ pretty much a perfect answer
Old 10-05-2012, 07:14 PM
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Yup!
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