Well Guys,
I finally thought I had everything ready for a DynoTune (new exhaust, plugs, wires and New trans) so I took the car down to JD High Performance in PA last Friday. Bryan Herter was there to do my DynoTuning. On the very first run, I must say that I was very pleased cuz Brian had original street tuned the car and he NAILED the Air/Fuel Ratio, it was exactly where I wanted it and he was only using a Laptop with scanning software to tune and going off stock 02 sensor readings and this was back last year when he street tuned it. Last Friday first Dyno run with Wideband 02s, revealed that Bryan's "street tune" was dead on (Air Fuel Ratio Wise). It started off at 12:1 and went down to 11.6:1 at top end, (Pretty safe for a blower yet good for power).
Here's the good stuff (kinda): With no adjustments, the car made 427RWHP at 5100rpms and ~550RWTQ (actually the torque numbers were as high as ~570RWTQ). But thats when the converter took a dump. If the converter would have held, it would have made more power all the way towards
~5600rpms or so considering the boost and cam combo. Later Bryan added 3 more degrees of timing and the car seemed to respond well to it but it was too late, the converter had pretty much gave up the ghost (At least we believe its the converter for now) and it was not putting down the power to the rear wheels, only like 270RWHP. Dynotech will be looking into the trans
this week to see what exactly went wrong and hopefully fix it. From what I saw and what Bryan and the other guys running the dyno told me, if the converter would have held up, and the car would have pulled cleanly to 5800rpms, it would have made over 450+RWHP especially with the more timing that Bryan added.
I must say, with only 10 psi of boost, COMPLETELY Stock Heads (down to the stock rocker arms), a stock UNported Throttle Body and a some what small cc305 cam, and only a two core IC, I was VERY PLEASED on what I saw before the trans/converter took a dump.

All this leaves a certain question though, I have never heard of a
Vig converter taking a dump, has anyone else here have one go bad or know someone that had one go bad on them?

Thanks,
Claude

 

Those are some nice torque numbers.

 

New tranny makes me suspicious of the tranny.

Rich Krause

 

Thanks for the Kind word IDOXLR8.

Rich,
I am having them tear down the trans right now to see what the problem actually is. Hopefully, I will know by tomorrow but the popular consensious at the Dyno was that the converter was the culprit. I will know for sure by Tomorrow or Wednesday and take it from there. When I get the trans back in the car, I will try to take it down to a Dynoshop and do some more runs to see how well it holds up and what kinda power its really putting down.

Thanks,
Claude

 

Good to see your up and running Claude. I'll maybe back on the street in 2 - 3 months. Having the motor torn down........again.

 

Those are some awesome numbers! You gotta be happy with that!

 

Shawn & Blownbird01,
I am happy I finally got everything done and with the numbers I was getting especially since the heads are bone stock expect for springs, just waiting to see what the news is with my trans and then I will try to hit another dyno to see if it really gets better with a complete full pull. Hopefully the trans will live for a while under the power I will be making. Anything near 450RWHP and I will be more than happy with it for a whiles, especially since I drive it everyday (over 500+ Miles weekly).

Shawn,
Please keep me informed about your car. I am sure it will be more than what you are expecting and wanted when you are done



Thanks,
Claude

 

Good numbers man, Especially the torgue but Im guessing the converter had something to do with that before it took a dump. But this is also the reaso why im swapping the auto-tragic out and putting in a built 6-speed. If you were me and went through as many"built " trannys as I have, you would too. But good luck man!

 

Trust me i have been trying to talk him into 6 on the floor for a while ....