Even better. 633 RWHP Ford GT video

**Heffner Performance** · March 31st, 2006, 10:00 AM

This is a car we just finished up for one of our customers. The car sounds incredible. Mods are headers, exhaust, pulley (15 psi.), and some custom tuning. We dynoed each mod separately to see what each was worth. The headers and exhaust were only worth between 10 and 20 RWHP, the pulley and tuning account for the rest.

Dyno video:
http://www.viperalley.com/gallery/data/500/MOV00413.MPG

Oh what fun it is to drive.......

**Richie-SRT10** · March 31st, 2006, 10:04 AM

Jason did you dyno the car before the mods? What does the stock pulley have for psi?

**Heffner Performance** · March 31st, 2006, 10:09 AM

This car in particular made 499 rwhp stock which is with ~11 psi.

E-Double · March 31st, 2006, 10:15 AM

Is this just a pulley, or the KB snout?

**Heffner Performance** · March 31st, 2006, 10:15 AM

Just a pulley.

**Josh M** · March 31st, 2006, 10:17 AM

That is awesome! I wasn't a huge fan of these cars when they first came out but they have grown on me tremendously, now I find myself lusting for a silver/white one

**TX WHOS YOUR DADDY** · March 31st, 2006, 10:53 AM

Quote:

Originally Posted by Heffner Performance

This is a car we just finished up for one of our customers. The car sounds incredible. Mods are headers, exhaust, pulley (15 psi.), and some custom tuning. We dynoed each mod separately to see what each was worth. The headers and exhaust were only worth between 10 and 20 RWHP, the pulley and tuning account for the rest.

Dyno video:
http://www.viperalley.com/gallery/data/500/MOV00413.MPG

Oh what fun it is to drive.......

VERY NICE ACTION AND TUNING!YOU HAVE THE OFFICAL TX WYD TUNER ENDORSEMENT SEAL!

**Heffner Performance** · March 31st, 2006, 11:03 AM

Thanks Norm. Will the seal of endorsement get me discounts at local restaraunts, hotels and airlines? Will you teach me the secret handshake?

Viperjohn · March 31st, 2006, 01:51 PM

Wow, that fucker sounds tough!

**Toby** · March 31st, 2006, 04:12 PM

as always, I am impressed.

SilverRT/10 · March 31st, 2006, 07:57 PM

Sounds like there is alot of potential with these cars...

Ripper02 · April 1st, 2006, 12:04 PM

Great Numbers for just a few little mods

**Richie-SRT10** · April 1st, 2006, 01:03 PM

Jerry I was surprised to see such strong numbers myself but a great tuner can work wonders on a car especially if he has the magic wand like Heff.

Ripper02 · April 1st, 2006, 03:00 PM

He can and he has.................Especially on mine

**AUSTIN** · April 2nd, 2006, 01:51 AM

Very nice.

VIPER D · April 3rd, 2006, 10:10 PM

Can you imagine when heffner does a GTTT. Shit next year I will be in the market for a new ride you never know.

vd..

hardtop · April 5th, 2006, 11:41 PM

Strong numbers,what tuning software did you use.

**CHAD** · April 6th, 2006, 08:43 AM