MIKE 1985

I ran the car at the local T&T on Sunday. Weather was sunny and 75 deg...


car weight with driver 3000lbs


1st run with my dynomax hemi super turbos ( 20" case..nice and quiet)

12.63 @ 106 1.82 60'

2nd run mufflers and pipes off ( i have a quick disconnect...10 min)

12.23 @110 1.80 60'

3rd pass dual stage. leaves on a 100 shot,1 sec out it goes to 200 total

10.26 @127 1.46 60'

I had a problem here. At the 900-1000 ' mark the lexan roof decided to leave the car, soaring as high as the timing lights, so about that time i let off. The roof was unhurt, just needs reglued.

this was with the stock rear rims 26X11.5X16 ET streets @ 12 lbs ( i did a 4" wheelie), front runners, the D-36 with 3.08 gears is still alive and making no noise. I think it has more in it, but i'll just run motor till the end of the season, then i'll bring the second kit in sooner and see what happens. I think it will go 128-129 MPH ?

I should have a video to post later this week

1989GTATransAm

iTrader: (3)

Are you running a 2 1/2" dual exhuast system? Just curious as to where the restriction is. Nice times. Allen

MIKE 1985

yes it's a 2.5" dual ex. system with a H pipe and the 20" case dynomax hemi turbo's. I think the muflers are, but i like the car quiet on the street

1989GTATransAm

iTrader: (3)

Thanks for the reply. I'm with you on the restriction. It has to be the mufflers. Reason I ask is I'm in the process of upgrading my exhaust to a Mufflex 3.5" system. Mine is a street car and I like things quiet to but with high flow. Thanks, Allen

MIKE 1985

I have found there's always a trade off. flow for noise. It all depends on the individual.


I use 2 summit band clamps in the front and 1 bolt in each hanger in the back and it's off, this way you never have to deal with collector bolts and i still have 8" extensions past the collectors for producing TQ.

good luck