How do I calculate Compression Ratio 4G63 Stroker
If I were to run a G4CS crank w/ 9:1 compression ratio JE pistons(rated w/ stock 4g63 stroke), what would I be looking at for compression?
I had a flywheel bolt back out of the crank, effectively destroying the crankshaft along with other parts. I have read quite a bit on running a G4CS crank for the 100mm stroke in a 4g63 effectively increasing the compression ratio of the stock pistons due to the increased travel. Does anyone have a formula to determine the ratio? The car no longer needs to be a street driver, so running on race gas is acceptable... Would I run into interference issues with the head/valves/pistons? I mean with the increased stroke the piston travel so far it will make contact? I have read several threads on machining the block to accommodate the crank so as that it doesn't make contact with the main cap bridges or cylinder #3's connecting rod and the interior of the block, would these be my only concerns for interference?
Forgive me if this has been covered, I couldn't find it.
Thanks in advance and sorry for the long post!
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Earle
99 GST / GSX
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