702 Horsepower out of our Small Block

mark@streetlegaltv · #1 (**permalink**) 10-29-2008, 12:02 PM

Well to fast forward a bit. Things here have been BUSY to say the least. Comp Cams sent over a set of Magnum Steel 1.5 Roller Rockers, Push Rods, Billet Timing set, 3 piece cover and retro hydraulic rockers with the factory spider. Zex sent over a plate kit and TCI a Rattler Balancer. We were doing cam testing with 3 nitrous cams and 1 NA. Top horsepower off nitrous horsepower was 523 HP and top nitrous run was 702 HP. This was done on the Dart assembled SHP short block and 215cc as cast Pro 1 top end kit. Westech assembled the top side of the engine and dynoed it. The Holley 4150 HP 830 CFM carb performed flawlessly as there was no adjustments needed out of the box and the motor was ran on a conservative air/fuel averaging about 12.2:1 NA.

Next, the engine will go over to Mckinney Motorsports where they will fabricate some mounts and modify the front sump oil pan. Check out the video below.

TheNewGuy · #2 (**permalink**) 10-30-2008, 09:54 AM

Sweet deal Mark. When do you think you are going to have the engine in that car?

mark@streetlegaltv · #3 (**permalink**) 11-07-2008, 06:19 PM

Running before 2009 is my goal

bhp · #4 (**permalink**) 11-15-2008, 01:43 PM

Hi there,
What heads & compression are you running,also what timing did you take out when you hit it with the nitrous.

Thanks BHP,
England.

powerjames · #5 (**permalink**) 11-16-2008, 06:23 PM

Yeah Mark fill us in.. sweet little video

Bobby Kbro · #6 (**permalink**) 11-17-2008, 09:28 AM

Mark. When you putting that in a real car?

mark@streetlegaltv · #7 (**permalink**) 11-18-2008, 01:57 PM

Quote:

Originally Posted by bhp

Hi there,
What heads & compression are you running,also what timing did you take out when you hit it with the nitrous.

Thanks BHP,
England.

It is a 10:1 compression ratio motor with the Dart Pro 1 top end kit on a 215cc Intake port. On the nitrous, it was pulling out 4 degrees (as per Zex's recommendation) of timing. Additionally, it had 2 step colder plugs in it the whole time.

All in all, the motor is pretty tame with an moderately aggressive cam and makes great power.

Bobby Kbro · #8 (**permalink**) 11-21-2008, 09:45 AM

This is a cool project. I love imports. I bought a Civic with VTEC yesterday

TheNewGuy · #9 (**permalink**) 11-21-2008, 09:49 AM

Quote:

Originally Posted by Bobby Kbro

This is a cool project. I love imports. I bought a Civic with VTEC yesterday

Isn't VTech a kids computer?

TheNewGuy · #10 (**permalink**) 11-21-2008, 10:04 AM

I didn't know this wasn't a joke... Here is a pic of BJ's new car: