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Old Mar 12, 2007 | 10:29 AM
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Default New Dyno Numbers

OLD : 438 rwhp....(453 with lid, filter, and ducting off - not legit)
3?? lbft of torque (dyno had trouble reading this)
NEW : 465 rwhp through lid, filter, and ducting
388 lbft of torque

These are SuperFlow dyno numbers from S&R Racing in Lexington, KY.
I will post a graph up this week sometime. Dont have a chance right now.

DynoJet corrected numbers were 491rwhp 412 lbft. I am thrilled with the new power numbers. The torque numbers are a little on the low side, but, since I am considering a cam change, we will see what happens there. I honestly was a doubter of the Fast 90/90 on small cube motors, but my little 348ci picked up 27rwhp with the UNPORTED Fast 90/90, aluminum flywheel, and dual cutouts instead of just one cutout on the previous dyno. On a side note, Dual cutouts closed, car was 440 rwhp, open, 461 rwhp before tuning....thats 21 more hp with them open over an SS catback with a Magnaflow muffler. DUAL CUTOUTS FTMFW!!!!

Last edited by moeZ28; Mar 12, 2007 at 10:45 AM.
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Old Mar 12, 2007 | 10:41 AM
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Originally Posted by moeZ28
OLD : 438 rwhp....(453 with lid, filter, and ducting off - not legit)
3?? lbft of torque (dyno had trouble reading this)
NEW : 465 rwhp through lid, filter, and ducting
388 lbft of torque

These are SuperFlow dyno numbers from S&R Racing in Lexington, KY.
I will post a graph up this week sometime. Dont have a chance right now.

DynoJet corrected numbers were 491rwhp 412 lbft. I am thrilled with the new power numbers. The torque numbers are a little on the low side, but, since I am considering a cam change, we will see what happens there. I honestly was a doubter of the Fast 90/90 on small cube motors, but my little 348ci picked up 27rwhp with the Fast 90/90, aluminum flywheel, and dual cutouts instead of just one cutout on the previous dyno. On a side note, Dual cutouts closed, car was 440 rwhp, open, 461 rwhp before tuning....thats 21 more hp with them open over an SS catback with a Magnaflow muffler. DUAL CUTOUTS FTMFW!!!!
With your overlap, I don't doubt for one second that them dual cutouts did a lot of good. Good to hear you're happy with the power man, it looks good
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Old Mar 13, 2007 | 12:35 AM
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moeZ28's Avatar
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From: ashland, ky
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I am happy with the horsepower....the torque is a different story though. I will be changing cams soon to find more usable power. For now though, this thing pulls like a raped ape up top!!!
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