Paul Riva's 1995 Mustang GT 'vert's NA 331ci combo on the dyno and street

This is a video of my NA 331ci setup on the Dyno and on the street showing its mild manners. The car has run 11.5 at 121mph with this setup and I finally got a chance to see just how much power it was putting down. Previously this combo made 380rwhp/380rwtq with AFR 165 heads, I have since swapped them out for a set of AFR 185 competition heads and probe shaft mount rockers. I knew the car was substantialy stronger, but now I have hard data to back it up. This combo was never intended to be a NA combo as I bought a PTK single turbo kit for the car before I even built this setup. The car was down for 2yrs so I decided to just throw it together NA and run it this way until I had the funds for the fuel system needed for the turbo. Its been so fun and headache free that I've kept it NA for nearly 3 yrs now! I still have a T76 single turbo setup for it, but when I keep getting numbers like this I'm inclinded to keep it NA and avoid the associated issues that are bound to happen when the turbo goes on. I NEVER thought I would see results anywhere near this with an NA stroker, even a NA dedicated one. If I had known that numbers and streetability like this were possible I'd have never bought the turbo and this combo would be a 10.5:1 363 NA mill right now.

More Videos...

1995 Mustang GT
Here is the new car, a 1995 Mustang GT with a Vortech T-Trim Supercharger

SN95 Mustang Compulation
This is some of the best looking sn95 Mustang

676 RWHP Procharged 95 Mustang GT Magazine Cover Car
Modified Mustangs magazine May 2007 issue cover car. Built by Jim Riskovsky Jr from turbo Connection Racing in May 2005. Car made 676 RWHP with 12 psi Boost on 93 Octane PUMP gas at that time. Its a 331 inch 9:1 compression stroker motor. This Dyno run was for video footage purposes and still laid down 651 RWHP in August 2007. An 8 rib conversion to decrease belt slippage and an increase in Boost can easily push this combination to 750+ RWHP! Car is for sale with recently freshened engine for 35K. Contact/email Jim for details.

1995 Mustang GT Dyno Tune
302 H/C/I 300 RWHP / 310TQ