95 Silver TA
03-08-2004, 10:22 AM
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
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