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Mustang Forums
SN-95 and New Edge Mustangs
10:1 Compression and boost
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<blockquote data-quote="98 Saleen Cobra" data-source="post: 15978694" data-attributes="member: 52734"><p>1st, you can't compare a Coyote engine to a pi headed GT engine. Variable cam timing plays a huge role with cylinder pressure lol.</p><p></p><p>2nd. T-trim will more than get you there, but if only 500rwhp is what you want you could go SI trim as well. I've had a S/T/and now JT trim.. Wishing I had a YSI. I made 670 with the T-trim on 17psi without even trying on my 4v engine..</p><p></p><p>Compression isn't high. 10:1 on 93 you need to keep boost around 12-13psi range to be safe.</p></blockquote><p></p>
[QUOTE="98 Saleen Cobra, post: 15978694, member: 52734"] 1st, you can't compare a Coyote engine to a pi headed GT engine. Variable cam timing plays a huge role with cylinder pressure lol. 2nd. T-trim will more than get you there, but if only 500rwhp is what you want you could go SI trim as well. I've had a S/T/and now JT trim.. Wishing I had a YSI. I made 670 with the T-trim on 17psi without even trying on my 4v engine.. Compression isn't high. 10:1 on 93 you need to keep boost around 12-13psi range to be safe. [/QUOTE]
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10:1 Compression and boost
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