TheBigAL

A friend of mine just picked up a really nice 2000 Trans Am. 59,000 original miles. It has the SLP air lid with a K&N, LS6 intake, Pacesetter ceramic longtubes, MS3 cam, and PRC 2.5 heads, 4000 stall with the stock 2.73 gears. Runs pretty good but god it needs some 3.73's bad. What kind of realistic dyno numbers should his car put down?

NHRAFORMULA00

iTrader: (2)

Somewhere in the ballpark of 450 on a dynojet.

TheBigAL

Well the reason I asked this is because it came with a dyno sheet in the glove box. It's been dynoed before at Vengeance Racing and only made 384 rwhp and 345 Torque. I told him I didnt think theres any way in hell it should have dynoed that low. Maybe they dynoed it when it was cam only? Then added the heads later?

MeMz

What's the rest of the exhaust? What kind of Dyno? Got a pic of the Dyno sheet?

There are a lot of different things it could be I suppose

madmike9396

iTrader: (29)

probably around 400 rwhp

ls13ater

iTrader: (3)

420-430 if it was a t56 but since it has a loses stall and a auto, 380-400 sounds right. it should run some mid to low 7 1/8 mile with some good drag radials and a 3.42 gear out of a m6 car

Goosecaddy05

vengeance has the highest reading dyno out of the 4 i've been on in atlanta, plus they always use standard correction which also pumps up numbers a bit... only other place i know of in town that reads higher is dynolab... 384 on vengeance's dyno with those mods is dismal

TheBigAL

Believe it has an aftermarket Y-pipe. Not sure on the size. With a Flowmaster catback. I think it needs tuned again. Has a dead spot in it at times. I dont have a pic of the dyno sheet. I'm pretty sure the dyno sheet is atleast 5-6 years old. The car has been around my town for a good while now.

NHRAFORMULA00

iTrader: (2)

That dyno sheet is probably from a cam only dyno. My old ms3 and prc 5.3 2.5 in an a4 dynoed 433 on a mustang dyno, with a loose pt4400.