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New Edge Cobras
Help with 01 vs 04 cobra crankshafts and compression ratio
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<blockquote data-quote="blownstang4.6" data-source="post: 16307565" data-attributes="member: 129006"><p>Your shortblock internals are exactly the same as an 03/04 cobra. You just have the lighter aluminum block. Your compression should be right around 8.5:1 since you're using the 03/04 pistons. Just FYI, the 03/04 cobra pistons aren't the greatest hence why most usually keep the boost around 20psi. Maybe do a race tune with 24psi and a street tune with 19-20psi. 8.5:1 compression takes alot of boost to make good power. Way too low imo. Just make sure you get a great tune from a reputable tuner.</p></blockquote><p></p>
[QUOTE="blownstang4.6, post: 16307565, member: 129006"] Your shortblock internals are exactly the same as an 03/04 cobra. You just have the lighter aluminum block. Your compression should be right around 8.5:1 since you're using the 03/04 pistons. Just FYI, the 03/04 cobra pistons aren't the greatest hence why most usually keep the boost around 20psi. Maybe do a race tune with 24psi and a street tune with 19-20psi. 8.5:1 compression takes alot of boost to make good power. Way too low imo. Just make sure you get a great tune from a reputable tuner. [/QUOTE]
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Help with 01 vs 04 cobra crankshafts and compression ratio
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