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Gearheads
1957 Chevy 9" swap HP Loss?
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<blockquote data-quote="swampratt" data-source="post: 2912666" data-attributes="member: 15054"><p>HA! good story..I used bumper jacks to break beads for many years..I cut the base of my jack to a round shape to better fit the base against the rim.</p><p>My 4 door weights 3570 with no driver.</p><p></p><p>Numbers are in.</p><p>Probably did not make much difference because of the Low HP of this combo.</p><p></p><p>Last Dyno with GM rear end was 228.23 HP and 13.15 Air fuel ratio.</p><p>This Dyno with 9" read end was 226.67 HP with 13.56 Air fuel ratio.</p><p></p><p>1.56 HP difference</p><p>I will call that a wash .. ambient temp and other weather factors will change it that much and more.</p><p></p><p>That is all I got for ya. A few numbers to chew on.</p></blockquote><p></p>
[QUOTE="swampratt, post: 2912666, member: 15054"] HA! good story..I used bumper jacks to break beads for many years..I cut the base of my jack to a round shape to better fit the base against the rim. My 4 door weights 3570 with no driver. Numbers are in. Probably did not make much difference because of the Low HP of this combo. Last Dyno with GM rear end was 228.23 HP and 13.15 Air fuel ratio. This Dyno with 9" read end was 226.67 HP with 13.56 Air fuel ratio. 1.56 HP difference I will call that a wash .. ambient temp and other weather factors will change it that much and more. That is all I got for ya. A few numbers to chew on. [/QUOTE]
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