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Tech & Fab
Propane engine builds (tech, questions, advice)
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<blockquote data-quote="halcat" data-source="post: 258317" data-attributes="member: 2295"><p>I agree with you TBItoy. I hade an engine built for my rig and my engine builder said it would do 600 hp 625 tq on gas with a 750 cfm fast throttle bodie.I was concerned if 750 was big enough, he said cfm had nothing to do with hp it was rpms that need cfms. He said he built a 355 for circle track that was going to turn 9500 rpms and the math said it only needed a 750 cfm carb. I think if your motor can make big power down low, it will make it but won't make any more up high than the cfms will allow. My .02</p></blockquote><p></p>
[QUOTE="halcat, post: 258317, member: 2295"] I agree with you TBItoy. I hade an engine built for my rig and my engine builder said it would do 600 hp 625 tq on gas with a 750 cfm fast throttle bodie.I was concerned if 750 was big enough, he said cfm had nothing to do with hp it was rpms that need cfms. He said he built a 355 for circle track that was going to turn 9500 rpms and the math said it only needed a 750 cfm carb. I think if your motor can make big power down low, it will make it but won't make any more up high than the cfms will allow. My .02 [/QUOTE]
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