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Corvette
Corvette Performance
Weird Dyno Result
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<blockquote data-quote="CableGuy" data-source="post: 220446" data-attributes="member: 287"><p>Seems relatively reasonable for a 8.5:1 build. A CR that low (even with heads and cam) is going to be significantly lower in power than a comparable build with a higher compression ratio. A ZZ4 crate runs around 355HP / 425TQ at a CR of 10:1. This factors in no drivetrain at all, this is BHP at the crank. Now drop the compression by 1.5 points and that number drops drastically. You gain a tiny bit back with heads and cam, but your major gains would come from boost (effectively increasing the compression ratio).</p><p></p><p>At any rate, a dyno is great tool for measuring gains to compare before and after mods. Most numbers do differ from dyno to dyno by at least a certain percentage. Also varies by dyno manufacturer. A mustang dyno will always read lower than a comparable dynojet.</p><p></p><p>Hard to tell from your pictures, but that appears to possibly be a Dyno Dynamics brand machine. They usually fall somewhere in the middle based on my experiences.</p><p></p><p>Hope that helps..........</p></blockquote><p></p>
[QUOTE="CableGuy, post: 220446, member: 287"] Seems relatively reasonable for a 8.5:1 build. A CR that low (even with heads and cam) is going to be significantly lower in power than a comparable build with a higher compression ratio. A ZZ4 crate runs around 355HP / 425TQ at a CR of 10:1. This factors in no drivetrain at all, this is BHP at the crank. Now drop the compression by 1.5 points and that number drops drastically. You gain a tiny bit back with heads and cam, but your major gains would come from boost (effectively increasing the compression ratio). At any rate, a dyno is great tool for measuring gains to compare before and after mods. Most numbers do differ from dyno to dyno by at least a certain percentage. Also varies by dyno manufacturer. A mustang dyno will always read lower than a comparable dynojet. Hard to tell from your pictures, but that appears to possibly be a Dyno Dynamics brand machine. They usually fall somewhere in the middle based on my experiences. Hope that helps.......... [/QUOTE]
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Corvette
Corvette Performance
Weird Dyno Result
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