Mustang GT Highway "Race"
#19
10-03-2003, 10:16 AM
Re: Mustang GT Highway "Race"
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.
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.
#20
10-03-2003, 12:58 PM
Re: Mustang GT Highway "Race"
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
#21
10-03-2003, 07:08 PM
Re: Mustang GT Highway "Race"
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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#22
10-03-2003, 09:29 PM
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10-04-2003, 05:15 PM
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10-04-2003, 05:29 PM
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#25
10-04-2003, 06:53 PM
Re: Mustang GT Highway "Race"
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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#26
10-04-2003, 08:13 PM
#27
10-05-2003, 12:44 AM
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Re: Mustang GT Highway "Race"
Poster: Hitman
Subject: Re: Mustang GT Highway "Race"
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.
That is a false statement. If you look at dyno sheets then you can see that after a certain RPM, the power actually starts to go DOWN. So if the GT had a redline of 9000, then it wouldn't really do anything good unless it was designed to produce more power up to that RPM. Maximum power is not always at the redline....I have found that it is usually before the redline.
Subject: Re: Mustang GT Highway "Race"
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.
That is a false statement. If you look at dyno sheets then you can see that after a certain RPM, the power actually starts to go DOWN. So if the GT had a redline of 9000, then it wouldn't really do anything good unless it was designed to produce more power up to that RPM. Maximum power is not always at the redline....I have found that it is usually before the redline.
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10-05-2003, 01:37 AM
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#29
10-05-2003, 11:39 AM
Re: Mustang GT Highway "Race"
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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#30
10-05-2003, 08:12 PM
Re: Mustang GT Highway "Race"
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".
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".