2005-2009 Mustang Information on The S197 {Gen1}

Guesses on the GT's top speed?

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Old 5/25/04, 07:16 PM
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great movie...


Most cars are electronically limited to 110mph because they use cheapo tires. My guess is the mustang's top speed will be around what it is now.. although some selective computer programming can change that :drive:
Old 5/25/04, 07:16 PM
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Originally posted by Boomer@May. 25th, 2004, 5:54 PM
This car goes to 11
Old 5/25/04, 10:00 PM
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Top speed is cool, but IMO, its all about acceleration. If I wanted top speed, I'd buy a Ferrari (hehe....but I guess I'd get acceleration also though ).

"Mustang: Live your life a 1/4 mile at a time"
Old 5/25/04, 10:02 PM
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acceleration is a much better feeling
and shifting your way to it
Old 5/25/04, 10:02 PM
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I don't think I will ever be fortunate enough to hit 150 w/o being chased by Buford T. Justice.

I agree Dan... but maybe a roadtrip to local states where radar detectors are legal would be fun
Old 5/25/04, 10:04 PM
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Originally posted by Galaxie@May. 25th, 2004, 10:05 PM
but maybe a roadtrip to local states where radar detectors are legal would be fun
YES. Yes it would.
Old 5/25/04, 10:04 PM
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I think estimates in the 145-150 range are pretty much on unless it's governed. Either way, it's faster than I'm going to drive on a highway.
Old 5/25/04, 10:06 PM
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It would be kool to take it on the Autoban and try it out,,,,,,where else would u have the freedom (legal) of doing so with normal open highway traffic??? :scratch:
Old 5/25/04, 10:13 PM
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Originally posted by Galaxie@May. 26th, 2004, 12:05 AM
I don't think I will ever be fortunate enough to hit 150 w/o being chased by Buford T. Justice.

I agree Dan... but maybe a roadtrip to local states where radar detectors are legal would be fun
It sure would be fun.


You think insurance is high now, try getting caught doing over 100mph. I'll pass thank you. Maybe on track in the quarter.

Now, during daily driving, accelerating quickly UP TO the speed limit is a bit more legal if you want a bunch of small kicks.

OT: BTW, I spanked a suped up integra yesterday with my PGT. That was fun. I'd probably just ignore them in the 05. Not worth the trouble.
Old 5/25/04, 10:17 PM
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Originally posted by Galaxie@May. 25th, 2004, 10:05 PM
I don't think I will ever be fortunate enough to hit 150 w/o being chased by Buford T. Justice.

I agree Dan... but maybe a roadtrip to local states where radar detectors are legal would be fun
ya i can confirm that.

i had my z28 up to 145 think it was supposed to have a top speed of 155... but anyway doing 145 on a rural 2 lane road probably wasnt the greatest idea but i was in a hurry.

needless to say i got two tickets that day in Kansas about 15 mins apart. I was to say the least.

I had stopped for gas after the 145 episode and slowed down a little. I think i was doing 90 in a 65 or something. So i asked the cop how much the fine was and he says $100 or whatever and I say wow that's not bad. (In TX would have been much higher.) I guess I should have kept my mouth shut cuz 10 miles down the road his buddy who I'm sure he radioed and told him I was headed that way got me for 10mph over the limit. ! would be an understatement. I almost got outta the car which probably would have made it worse for me. I mean who gets stopped for 10mph over?!

If you drive really fast all day long like from TX-KS 10mph over seems like 35mph. Anyway that was the last time I got any speeding tix..1997 I think. Two in one day was enough.
Old 5/25/04, 10:28 PM
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i went to traffic school while back (72 in a 55),,,,,,and this guy was also their for doing 122mph in his mustang through a school zone! Said when he got pulled over,,,he was handcuffed and spent the night in jail. They ended up taking his lisence for a few years. Also was fined couple hundred dollars and can't remember what else. All that because he was late for work.

Florida troopers are not friendly towards speeders
Old 5/25/04, 10:32 PM
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lol 122 in a school zone no less... thats like 100 over the limit probably. he probably did deserve to spend the night in jail for that speed on a city street.
Old 5/25/04, 10:35 PM
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Originally posted by its_amazing@May. 25th, 2004, 10:31 PM
i went to traffic school while back (72 in a 55),,,,,,and this guy was also their for doing 122mph in his mustang through a school zone! Said when he got pulled over,,,he was handcuffed and spent the night in jail. They ended up taking his lisence for a few years. Also was fined couple hundred dollars and can't remember what else. All that because he was late for work.

Florida troopers are not friendly towards speeders
He was late all right!

But back to topic. Do any of you have plans to tkae your new Mustang to a road track and take a few hot laps to check out your top speed? That seems the safest thing to do, and a whole lot cheaper than shipping it to Germany for a run on the autobahn.
Old 5/26/04, 05:45 AM
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The '05 GT is getting 3.55:1 gears rather than the 3.27:1 that the current GTs have. That will improve acceleration off the line, at the cost of top speed. Any idea how much that will affect the car's top speed?
Old 5/26/04, 06:16 AM
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Originally posted by BlueStangVert@May. 26th, 2004, 5:48 AM
The '05 GT is getting 3.55:1 gears rather than the 3.27:1 that the current GTs have. That will improve acceleration off the line, at the cost of top speed. Any idea how much that will affect the car's top speed?
The 3.55:1 axle will have NO effect on acceleration or top speed because the 05's tire diamter is larger. If you work out the #'s you'll find that @ any speed a '04 with a 3.27 axle will pull almost the same RPM as an 05 with a 3.55 axle.


Specifially @ 70 MPH, 5th gear, MTX, an 04 GT will be ~ 2215 RPM and an 05 will be 2201 RPM.

The auto is a different story because it gets a 3.31 rear end.
Old 5/26/04, 06:50 AM
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Back to the whole speedo thing...I thought that was kinda tacky having the speedometer only go to 140 when they've been using the 150 dials on the SN95's. I dunno...maybe it's just me but the 140 top number just doesn't seem right.....looks like the first mod I'd put on it (if I ever decided to get one) would be a new instrument cluster with a bit more numericals on it.
Old 5/26/04, 07:53 AM
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Mustang's speedometer goes to 145mph..one tick mark after 140. (see attached pic).
My Camaro's speedometer only goes to 120mph, and I've hit that before. I'm not a NASCAR driver, so 140mph would be plenty for me!

No radar detector laws in Texas, but I think being caught going over 100mph is an instant "Go Directly to Jail" card as involuntary attempted manslaughter.
Old 5/26/04, 08:45 AM
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I agree 140/145 is plenty on the speedometer. I didn't think the current GT speedos went to 150 anyway, but I obviously could be wrong.
Old 5/26/04, 08:57 AM
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With the sweep of the needle on the speedo only being 180 degrees, it will be a pain to squeeze any more numbers in there, and it will look bad.
Old 5/26/04, 10:21 AM
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Originally posted by pony_chief@May. 25th, 2004, 8:18 PM
Top speed is usually governed by powertrain bending and tire speed rating. Since the 05 car has a 2 piece driveshaft, it will have higher powertrain bending threshold than SN95 GT. Therefore, the top speed will be electronically limited to tire speed rating. Each manufacturer uses their own guidelines on how much below the top speed of the tire they limit the vehicle too. Ford may be a bit more conservative after Firestone incident on Explorers. I would venture to guess 143-145mph range.
Aerodynamic drag, or governing a car to keep it in a certain insurance bracket are the most common two things that determine a modern car's top speed.


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