Finally some dyno numbers
Just getting around to posting my first dyno session ever. This was from a few months ago:
A pretty exciting day. First we had a little Pro-Touring get together at Speed Merchant in San Jose, and I got to take the car out for the 1st time in like 5 weeks. I met my friend Curt there (69 Firebird, procharged SBC 355) - but he hung out only for a little while and told me he was going to a Dyno Day at Apex Motorsports in Santa Clara (I know the Bay Area Turbo Buick guys have all been here!), for a special 3-pulls-for-$55 group day on their above-ground DynoJet Chassis Dyno.
I switched to the truck for a while and went over and checked out what was happening. There was a lot of cars around and maybe 40 people. I tried to get on the dyno list but the operator said the list was full. Curt's 69 Firebird was last on the dyno list, but I didn't see him around. I called him and he said it was a 2-hour wait and he couldn't hang, and gave me his spot. I went back home and snagged the 4DR again and hurried back. I got to hang out talking and meeting new people until 7:04PM to make my first run. I tried one in 2nd, unlocked converter. One in 3rd, unlocked. Last one in third, locking at approx. 45mph.
THE RESULTS:
501rwhp at 5800
470ft/lb at 5250
There were some Ford Cobra guys standing around laughing at my car when I rolled onto the dyno. Since the best any of them put down that day was 470rwhp, they weren't laughing after my last pull! To give credit where credit is due, there are a few 03-04 Cobras around that are running hi-boost Whipples putting down in the 600rwhp range. Need to watch for them.
I was pretty happy with the numbers considering that the Vortech V-2 S-trim is too small and I can get a max of 7.5# of boost from it, after the FMIC and throttle. That's on a healthy breathing 383 with a small solid roller (230/236, net lift .575/.584, 112LSA), good heads (ported E-Tec 200's), 9.6:1CR, LT's, true 3" duals. I'm wondering how the HP would have held up if I set the tranny shift point higher - the line was pretty flat until the shift.
Definitely a day to remember!
Thanks to George at Apex for showing me what to do.
In the latest news, I have a new V-2 T-trim here waiting to go on. It should get me to the 10-12# range and after tuning, put down around 580-630rwhp and hopefully 540-560rwt. I am considering Razor's alky kit or the FJO Racing alky kit for use on hot days and at the track. And I still haven't hooked up either stage of nitrous.
I also got some MT ET Drag radials (275/40/17) that I hope will help me hook off the line. I got them based on recommendations from my Turbo Buick friends on the Bay Area Turbo Buick Forum. They are clearly stickier than the current BFG KD's.
Here's a picture from our cruise to Monterey. It was a shakedown cruise for me - I had previously never gone more than 10 miles from home while I fixed different bugs. On this trip I logged 160 miles:
I'm looking forward to hooking back up with the club for a track day.
Jim
My Site:
More Photos (Edited 04/14/07)