Went this morning and finished up the Dyno tune. I had it done at Synergy Motorsports.

Numbers were: 330.5 rwhp @ 4681 rpm and 449.3 rwtq @ 3234 rpm



Current mods:
- Stock Vortec 5.7L L31 (stock bottom, heads and cam)
- Whipple Supercharger w/ 2.75" pulley, boost peaks at 10-11 no detination
- Mercruiser vortec intake manifold w/ 42lb injectors
- Alkycontrol meth injection (injected pre blower)
- Dual 3" MagnaFlows X-piped
- 3" Magnaflow metallic cats
- Hooker Competition Long tube Headers
- Built FLT Level 4 4L60E
- PI 10.5" 3-disk 2800 RPM Torque Converter
- MSD 6A ignition + MSD plug wires
- NGK TR6 plugs gapped @ 0.040
- Stock Intake with K&N drop in filter
- 9.5" 14 bolt SF w/ 4.10s & Auburn LSD
- Flex-a-lite 280 electric fans

Time for some new heads and cam.

 

Hot damn Archie! Great torque numbers. I would have guessed more hp by the way it runs on the street/track. Heads and cam combo should make for a real sweet boost.

 

Thanks Bill. I'll get that horsepower up there.

Stock these L31 engines put out around 190-200 RWHP/260-270 RWTQ. So I think its doing alright for being a stock longblock.

 

Congrats on the numbers!! That thing is making a lot of torque. Definately different than a Gen3/4 conbo where torque and hp are close. The huge rear end has to be robbing a bit of power as well.

You going to turn up the boost?

 

I'm going to leave the boost where its at right now, I'm going to look into getting some heads and a cam first.

 

Great job! Those are some big numbers for a stock motor. Looks good too.