we can beat the new GTs... belive me ive done it

 

Me too - up to 110 then he blew past me

 

He blew past you at 110?

My buddy has a brand new 5 speed Mustang GT, and his car pulls strong to about 120. After that, the power starts to die and he tops out somewhere in the 130s. I would think that since a 6 speed G coupe is capable of 155 mph, the Mustang would be getting left in the dust at those high speeds.

 

Have auto sedan. even and then I pulled up to 100 then he got me - he has V8 more cubic tourque and had auto as well. Very close and then he had the v8 power at high end. Really at 110 it was time to slow for traffic so - from the line, I'd like to see what happens

 

I checked the dyno stats of a 99 GT. They are putting down 216 to the wheels and about 240ft/lbs of torque. Much more torquey than the G's. I haven't compared the two dynos side by side, but I believe the Mustang has a better hp/tq curve than the G. Make your own conclusions.

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magazine racing is fun....

-moooooo

 

dyno's don't lie. Those numbers weren't from a mag.

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isn't it mustang got like redline rpm at like 5500?? i always though mustang is slow because of so low redline... don't matter how much power you have, if you can't use it fully it's worthless...

 

Redline has nothing to do with power. You could have a redline of 9000, but if your only making 160hp, its worthless. The 2003 cobra has a redline of 6500, and it makes 415 HP, and it will dust a rx8 or a s2000 which both have high redlines. The dyno's show the HP within the vehicles given redline.

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Sure, but it is also true that most engines make more power as the revs build. In other words, if Ford were to make the Mustang GT motor so it could run 9000 rpm, then it would surely make more than the listed 260 HP.

 

well if mustang get 9k redline i'm 99.9999% sure that ford will make the motor make the peak power at right before or at the redline.. it's real obvious... who would just increase redline without do anything on the engine?

 

MNDZA- I agree with you. Peak power is usually slightly before redline on most vehicles, and you can see on a dyno that power close to redline tends to become "unstable," as you can see by the wavy lines on a dyno graph. In my opinion, HP is better if you have it throughout the entire range of rpm's. This allows you to utilize more power down low in the rpm's, rather than having to rev it up to make the car move. That is why I love positive displacement blowers. If you look at a vehicle with a roots type blower, boost is immediate, as well as HP and Torque. IMHO, it is better than a centifugal or turbo. Turbo's obviously use less HP to drive them, and peak power on both centrifugals and turbos is always higher. But low end power and immediate power outweigh those advantages in my mind. This equals more useable HP. (Sorry, I kinda got off-track with that one)

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Read my statement again....

I said that if Ford were to make the Mustang engine so it could run 9000 rpm, then it would surely make more than 260 HP. That is absolutely true. Think about it-- why does a car like the Honda S2000 have such a high rpm redline and the Mustang have such a low redline? Go back to basics and think about it....

Now, with that in mind, does anyone really think Ford would JUST raise the redline of the current 4.6L motor in the Mustang? Of course not.

It's basic, common knowledge that engines make more HP the faster they spin. Torque, on the other hand, is a completely different story.

Fact of the matter is that 99% of all stock, street car engines should be shifted AT redline for maximum acceleration. Very rare is a car that would go faster if "short shifted".