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how can i tell the compression

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how can i tell the compression Empty how can i tell the compression

Post  daves79dart November 12th 2010, 6:16 am

how can i tell the compression of my 466?i did a compression test and all where at 210 psi to 230 psi.thanks

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Post  bigblockfox468 November 12th 2010, 8:24 am

daves79dart wrote:how can i tell the compression of my 466?i did a compression test and all where at 210 psi to 230 psi.thanks

I don't think you can nail that down with compression readings scratch . IMO your readings are a good indication that you have a good ring and valve seal package and possibly small chamber heads. Whats heads are on it? Without bore, stroke, head gasket thickness etc etc specs..... it may be hard to actually really know. But I'm no pro No we'll wait for the experts to chime in.
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Post  Bernie November 12th 2010, 9:21 am

I guess you're looking for the static compression ratio, so... http://www.wallaceracing.com/cr_test2.php

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Post  rmcomprandy November 12th 2010, 9:36 pm

Intake valve closing point will have a major effect on cranking cylinder poundage readings.

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Post  daves79dart November 13th 2010, 4:42 am

bigblockfox468 wrote:
daves79dart wrote:how can i tell the compression of my 466?i did a compression test and all where at 210 psi to 230 psi.thanks

I don't think you can nail that down with compression readings scratch . IMO your readings are a good indication that you have a good ring and valve seal package and possibly small chamber heads. Whats heads are on it? Without bore, stroke, head gasket thickness etc etc specs..... it may be hard to actually really know. But I'm no pro No we'll wait for the experts to chime in.
the heads are dove c,bore is .30 over from stock,stroke is stock,that is all i know about the engine.im trying to get the cam card from the guy i got it from.i will post the specks of everything when i get it.im looking for a ballpark idea of the compression.thanks

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Post  daves79dart November 13th 2010, 11:24 pm

the heads and block are not milled.i did get the cam card the specks are gross valve lift intake .589 exhaust .615 duration @ .050 intake 256 exhaust 267 lobe separation 108. hope this helps

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