Jason Heffner finished putting his larger aftercooler and larger injectors on my car. A few months ago my car dynoed at 812 rwhp (corrected) when Jason tuned it with his blower system, making it the highest horsepower, non-nitrous blown Viper in the world!
With the new aftercooler Jason was able to pick up an additional 31 rwhp with his skillful tuning bringing it to 843 rwhp and 792 rwtq (corrected). Once again, this raises the bar for a supercharged Viper (no nitrous). No dyno tricks were used (i.e., icing of the engine, race fuel, etc.) As soon as Jason was finished I rode off into the sunset (albeit a little sideways!!). Of course, dyno results are one thing, but the proof is on the track.
For those who are new here or just tuning in, my car has the following setup:
- single blower making 12 psi of boost
- 93 octane pump gas (no race fuel or nitrous)
- Heffner's large aftercooler
- 50 lb/hr injectors
- ported/polished heads with larger valves
- stock '97 Viper cam
- fuel management system
- forged pistons
- Heffner's expert tuning expertise
For all you guys who have cars being supercharged at Heffner's, you're in for a real treat. For you guys that have yet decided to make the plunge, I invite you for a test ride and you will never look back!
Here's the dyno sheet:
[image]http://www.viperalley.com/gallery/data/500/863_17_dyno_sheet-med.jpg[/image]
Thanks to Jason for his hardwork and great engineering!!
issed: I thought I would just build a nice n/a motor and be happy. Not anymore, looks like blown is they way to go. 
