My Grand Prix on the dyno!

[dan_erickson]

I have a highly modified Grand Prix GTP that has never seen a dyno until yesterday and I was pleased with the results. I made 389 wheel horse power and 376 torque of of just a little 3800 V6. BTW I just use Mobil 1 5w30 lol.

 

[JHZR2]

Why are you only showing from 4500rpm up? My 135 makes full torque at 1200RPM. I'd think yours would be real stout down low. We're not looking at Hondas here.

Awesome numbers!!

 

[Dave Hess]

Nice.

What does it run in the 1/4 mile ?

 

[dan_erickson]

12.2 @115 before the E85. That [censored] is like liquid gold!

 

[Virtuoso]

That's awesome. I hope I can get my SSEi up in the 300's next year.

 

[dailydriver]

Did you weld the front diff, or did you install one of the aftermarket (Quaife??) diffs in this beast?

 

[ls1mike]

Awesome numbers! I was pretty happy with the 300 from Regal.
It sounds awesome. What all is done to to it?

 

[dan_erickson]

Here are the basics

Dynotech race trans
XP cam
Comp 105 lb valve springs
home ported heads
intercooler
TOG Extreme Headers
No cat and 3 inch exhaust with SLP mufflers
60 lb injectors
Gen V with 2.6 pulley
North star throttle body
E85
Walbro 255 fuel pump with rewire
DHP Powertuner software and tuned by me

 

[ls1mike]

Very nice!

 

[Ram01]

If you would use castrol edge you might of got 400 Hp

 

[Shaman]

Keep wanting to get one, Speed Daddy headers and exhaust, and tune it for 87. Be a great DD as long as the transmission didn't masticate itself to death.

 

[SteveSRT8]

Originally Posted By: LT4 Vette
Nice.
What does it run in the 1/4 mile ?


Me, too. Dyno numbers are just numbers. They are so notoriously inaccurate from one to the next that they mean little except for tuning purposes.

ET and trap speed are HONEST horsepower...

 

[dan_erickson]

For what its worth i have the highest dyno horsepower for the cam that i have

 

[ls1mike]

Originally Posted By: dan_erickson
12.2 @115 before the E85. That [censored] is like liquid gold!


There it is ladies and gents. Good MPH.

 

[dailydriver]

Originally Posted By: ls1mike
Originally Posted By: dan_erickson
12.2 @115 before the E85. That [censored] is like liquid gold!


There it is ladies and gents. Good MPH.


Yes, and that is a pretty quick e.t. as well for a HEAVY, powerful FWD ride as well, and WHY I was asking what diff (as well as what half shafts to quell the torque steer) he has in it to get those results.