I have a Thomson automotive ls3 418 with an LS9, but it dynoed out at 841hp and 818 ft/lbs of torque at only 10.9 psi on 93 octane. There is plans to test it chassis Dyno at 15 Psi. My friends have big blocks, but I always wanted supercharged engine.
I have a Harrop TVS 2300 in the for sale section, but it is great deal for the cost.
I'll throw in my .02 as someone who regularly builds cars for clients with blown big blocks. You cannot beat them for sheer brute force. You cannot beat them for sheer WOW factor when you open the hood... They sound great... they go like hell... they cost $$$ to build and at the end of the day you will wish you had done a blown LS if you want to drive it on a regular basis.
I've got two clients right now that I've built cars with 1000+ hp blown big blocks that I am now building second "driver" cars with boosted late model engines because the blown big blocks just wear you out on the street. These aren't radical full race motors... they aren't crazy high lift cams or race motors stuck in a street car. They are realistically drivable cars making hp with boost and they just wear you out driving on the street.
If you want something easy drivable with stock drivability under half throttle go with a late model engine of your chosen manufacturer and throw some boost on it. You can build 700-800 hp now without really breaking a sweat out of a late model LS, Coyote, and Hemi. Are you going to spend $$$... sure... but in the end if you want a driver you will be happier than the BB unless you really just like getting beaten up driving down the road.
__________________
-Sean
Comp Performance Group
Business Development Manager
Brian Hobaugh SCCA National Tour June 2014
First Hemi 'Cuda Convertible Ever Built
Short clips: Goodguys Pleasanton autocross and pit videos
Linear Mode
