rockitman

GT3 stock last year 348 rwhp...torque...262
GT3 today with EP,BMC, DME flash by Porsche for altitude sickness tsb... 372.8 rwhp 281.5 torque same dyno and similar weather. Smile on face...priceless. Graphs to be posted...

Larry's Herman's GT3 with cats and straight pipes...very loud. Drum Roll Please:Torque 294
RWHP 391 , I think...
....WhoooWaaaH!!!! Larry is the King!!!! Great guy to meet in person, incidently..

WULF

What dyno?

Z06

Great rwhp#'s.

Are those numbers corrected?

rockitman

Mustang

rockitman

I assume so. Same factors in the program from last years dyno. They still had it in their database...perhaps Larry will chime in.

Did I say how loud Larry's car is? Damages ear drums if not protected at wot when standing behind it on the dyno. Ear plugs were a god send. I did get the dyno on mini DV tape. It will look and sound good.

WULF

25 rwhp and 20 lb/ft increase is very useable and should be noticeable with the seat dyno.

WULF

Similar ambient conditions? Might be more in there!

rockitman

I thought I could feel it in the seat of my pants. Glad it wasn't my imagination.

rockitman

It was early fall last year around 60 degree's. It got up to 63 today. Both days were clear blue sky, low humidity...
actually it was fall of 2003 when I did the stocker with barely 1000 miles. Today I had 4500 mile. Perhaps the motor loosened up and explains the greater power increase.

WULF

At what revs does the hp and torque start to increase?

rockitman

torque jumps at about 2000 and spikes up to 200 lb/ft at 2400 and graduly climbs to peak torque at 5200. Peak HP was 7500

WULF

We all wish! Unfortunately performance costs money and you don't get +25hp without making the mods. All sensible value for money mods by the way.

WULF

Was there good increase in hp between 5000 and 7500 or was it all at the top end? Does Larry have any other mods or is it just the exhaust pulling those numbers?

rockitman

Thanks. There was a lot of speculation on this bd that expensive aftermarket exhausts and high flow air filters yielded little if any performance increase. I submit that the $4300 for exhaust and filter was worth it. For max hp, it's cheap...just drop the mufflers like on Larry's car...Too loud for the street and neighborhood, imho...

rockitman

5200= 285hp
7500= 372

Larry just dropped the mufflers. The white color may have something to do with it...