Mustang GT dyno run - tazmax

Dyno run of my 05 mustang GT. Fresh installed x-pipe and new cat. conv.
Too bad the x-pipe didn't fit well, probably the reason for only 316 euro-hp.

Category:

Autos & Vehicles

Tags:

• dyno
• run
• mustang
• gt
• tazmax
• x-pipe

[NollCo]

The reason for the low hp number is that the 4.6 in the GT has a RWHP rating of around 250hp. Either the drivetrain loses 50 hp or the engine really isnt rated at 300hp at the crankshaft.

[vmaxdani]

The loss of the drivetrain was at aprox. 35hp. There is in fact no real gain with the X-Pipe from bassani. I did another run with stock h-pipe and had the same amount of power.

BUT : " The sound with x-pipe is much better" :-D

[NollCo]

Well either way Ford has some explaining. My turboed Nissan 240SX makes around 340 hp at the crank and around 325 rwhp. 35hp of drivetrain loss is a little excessive.  The Mustang needs either more power or needs to weigh less. My hp motivates only about 2600lbs of car. Its probably less than that since I took out the rear seats and stereo.

[vmaxdani]

Well, you can't compare a charged engine and a natural aspirated engine. I don't know the 240SX- is it a rear drive? If not, a front drive has always less loss than a rear drive.

[NollCo]

It's rear drive. I am just saying, either the drivetrain is that inefficient or the 4.6L isnt really putting out its rated hp. Darn made in mexico cars....lol

[vmaxdani]

The drivetrain is that inefficient! You can see it on the dyno sheet in the "animals" video.

Thy. for your comments!

[Vintageologist]

First of all, most of these V8s still have much potential... it's like they run on "economy" mode. That's why an American Engine will still run great after 200,000 miles, while those small, high rpm engines die after about 130,000.

Also, the V8 will likely have more torque at that given hp, so it's still quicker. There's a reason why dragsters use em.

[Vintageologist]

No, it's just a different style ;)

People love to use Mustangs for drag racing. The Live Axle is better suited for that purpose anyway...

Also, I'd rather have a Mustang which is a bit heavier than one of those little (and I mean the car itself) Jap cars.

[rahu8670]

250rwhp is a little under average for a 3valve. is it an auto? dyno jet or mustang dyno? what are tha outside temps during time of tha pull?

[dre5491]

Whats done to your 240? Most likely its a Stock SR just like every other 240 in this world. I don't have respect for a 240 unless its a fully built SR or an Rb. Since your 240sx seems to be the God car since it's soo great int the corners and at the strip I'd like to see it take on one of these Mustangs. Also I'd like to see your 240 sell for more than $4000. If it's not a S14 SR or Rb Swapped S13 you'll never get more than $4500. I used to have a 240 and like my Mustang Much more.

[mythbuster74]

and half the price

[bloodyangel5463]

GUYS U TALK SO MYCH DUDE

[NollCo]

In addition, do you even own a GT500? They really arent that special. A stock Z06 is definantly better. The GT500? Its....mediocre and decent at best.

[ttdeloache]

really though V8 have a amazing fuel economy and they always a longer time then european cars and having 300 hp and still able to hit 149 miles an hour is pretty badass AMERICA!

[NollCo]

Thats one of my big issues with Ford. Their whole "live axle" excuse. You're gonna have a Hyundai with a V-6 that has the same power as a Stang V-8 WITH an independant rear and an LSD option. All for the, still not confirmed, price as a Mustang. That and the Mustangs weight. Why not concentrate on weight savings and an upgraded rear and only 400 or 425 hp? A GT500 that weighs 3500 lbs with an independant rear would be a good car. Ford's just to lazy!

[Vintageologist]

You know what? Invest ~3k and you can have the same suspension in the GT500. Roush Mustangs aren't THAT impressive. Granted, the handling is good, but you can buy those parts from them. Also, the Roush still has the live axle.

[NollCo]

If I had to pic a Mustang, it'd be the Roush Mustang with the upgraded rear. If you search for the GT500 test in Top Gear, the Roush stang, with 75 fewer hp, was faster around their course.