The compression ratio available with the entry level stroker kit is around 9.0:1
While it's higher than factory, the fact that the engine capacity is being increased means that the boost pressure will drop due to the limited capacity of the M90 supercharger. Therefore the slightly higher compression ratio from the factory (up from 8.5:1) works out well
However, unless you had your heart set on going with a stroker setup, I wouldn't go down that path unless you were planning on upgrading the blower at some stage, due to the limited capacity of the M90 supercharger.
While it's higher than factory, the fact that the engine capacity is being increased means that the boost pressure will drop due to the limited capacity of the M90 supercharger. Therefore the slightly higher compression ratio from the factory (up from 8.5:1) works out well
However, unless you had your heart set on going with a stroker setup, I wouldn't go down that path unless you were planning on upgrading the blower at some stage, due to the limited capacity of the M90 supercharger.
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