H22-H24 using F23 crank- are my calcs correct?
My first time running calculations like this, so if I am wrong at least I tried.
H22A closed deck block bored to 89MM
F23 crank(97MM stroke) with H22 main bearings
Custom rods- length-5.551 Width- .780 Pin bore- .8649-.8654 BE- 1.890 (F23 rod but strong materials) using F23 bearings
Custom pistons- 89MM 11:1CR with a compression height of 1.179
If my calcs came out correctly(which may not have) this would retain the same deck clearance of a stock H22(.004).
Info gathered for the calcs came from prelude forum FAQ on H\F motor specs.
H22A closed deck block bored to 89MM
F23 crank(97MM stroke) with H22 main bearings
Custom rods- length-5.551 Width- .780 Pin bore- .8649-.8654 BE- 1.890 (F23 rod but strong materials) using F23 bearings
Custom pistons- 89MM 11:1CR with a compression height of 1.179
If my calcs came out correctly(which may not have) this would retain the same deck clearance of a stock H22(.004).
Info gathered for the calcs came from prelude forum FAQ on H\F motor specs.
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jdm_rb20
All Motor / Naturally Aspirated
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Mar 6, 2013 07:43 PM




