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Short block…. Compression ratio?

gimmie11s

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we have a 4.6 bore space SBC that sees 75-82 psi… the motor has made 4000 to the hubs with twin 98s on Fueltech hub dyno…car runs 3.76 on a 275 tire… compression is in the 12-13:1 range…

there is no set answer to this question.. its a matter of trial and error.. testing and way more testing… no 2 motors will ever be the same..

and Also Sonny died last year…

You guys should really drop the compression to 9:1 for a cooler running engine. That will allow you to turn up the boost!

lmao
 

TKM Conbread

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You guys should really drop the compression to 9:1 for a cooler running engine. That will allow you to turn up the boost!

lmao
lol… i think we got this under control
 

K4fxd

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Again that is an all out race engine.
 

engineermike

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Who said lower compression is better in every case? I’ve said quite the opposite actually. It’s another straw man argument….
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