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Old 06-23-2012, 09:07 PM
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cobalt327 cobalt327 is offline
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Quote:
Originally Posted by loafing1
I'm not having any luck with online horsepower and torque estimators. I know I've seen people provide some of those estimates here, so...

- SBC 350 bored .040 over (357 CID)
- Flat top 9.72:1 compression pistons
- 5 cc dome volume, 66 cc chamber volume
- 348 stroke, 5.7 rod length, 9.010 block height
- Lunati cam: duration @ .050 225 int / 225 ex; advertised dur 275 / 275; max lift .477
- Aluminum CNC'd heads (unknown maker): int diameter 2.02, ex dia 1.6; int runner volume 208cc; flow tested:
@ 200: 138 int / 138 ex
@ 300: 198 / 158
@ 400: 240 / 190
@ 500: 260 / 207
- Edelbrock RPM Air Gap intake
- Duel 500 CFM four barrels
The one guy who used to do dyno sims for guys was run off, so about the only thing I can suggest is you try to find a Comp Cams cam as close to yours as you can and use the CamQuest software to get an estimate.

Or if the engine is in a vehicle, run a few quarter mile standing start passes and use the top end speed and the weight to get a good estimate of the HP using a calculator.