It makes me think that a simple torque converter & gear swap along with lightweight racing wheels and tires would put that deep in the 11s.

 

115mph is crazy mph. Wow

 

This is starting to sound a little absurd. The 5.0L Mustang is becoming Ford's GT-R.

115 mph trap speed?

 

Yes, someone please elaborate on the 115mph trap speed. I thought 112mph was darn impressive. 115mph is insane, something doesn't sound right......

 

Oops...edited my post (changed 11.73 to 12.73). Sorry.

I *think* I remember reading an online magazine article that had an A6 GT running 114 mph (don't remember the ET), but for the life of me, I can't find it, and at my age, you never know.

Definately want to see more numbers from other cars.

 

Motor Week went 13.0@116. Not sure if it was an auto or not.

 

Keep in mind that a lot of magazines publish instantaneous speed, recorded via GPS, which is different than drag strip trap speed and might explain the results being 1-3mph higher than what seems realistic.

 

Alright, someone explain this to me then. I'm not getting it.

How would the auto trap higher than the manual? The manual has less drivetrain loss and manuals trap higher than their auto brother in basically every car I can think of.

The best manual trap speed is 112mph with all other tests in the 109-111mph range with the average being about 110mph.

How would the auto be trapping 4-6mph higher with the same engine, same car, same weight, and similar traction?

 

The gear ratios in the auto are likely different. I suspect that's your answer.

Also, it takes a talented hand to take advantage of available traction on street tires with a manual. Maybe nobody's really gotten the hang of it in an '11 GT. Time will tell....

 

http://www.mpt.org/motorweek/reviews/rt2936b.shtml

Sounds like it was a manual.

 

It was also a convertible.

I simply don't believe a 412 hp 3700+ lb GT droptop on 255 tires is trapping like a 436 hp 3300 lb Corvette Grand Sport on 295 tires with better weight distribution.

 

3.73-geared M6s will hit the rev limiter in 4th before going through the traps. That will require a shift to 5th, putting the engine well below peak power through the traps.

It seems most M6s are getting the best MPH numbers from the standard 3.31 gears. I haven't seen any time slips with the optional 3.55s, which personally, I think we'll see the highest stock MPH come from.

Agree that mags don't always report dragstrip times, and instead, use GPS, or something like a G-Tech type of device.

 

Oh I agree when I saw the 116mph the first thought that entered my mind was they were reading the exact mph at the end of the 1/4 and not the average of time like dragstrips use.

I had the second generation G-tech(g-tech pro iirc) and tested it at the track on more than a few occasions. Surprisingly the thing was amazingly accurate on the e.t. generally within a few hundredths of my timeslip. But the mph was always higher by about 2 mph because it was trying to give me an exact mph at the end of the 1/4.

And funny story the only reason I even bought a G-tech Pro, as the thing was like $250 bucks, again iirc, was because of my high school Calculus teacher. He knew I had a 5.0, he knew it was definitely not stock, and he knew I raced at the track nearly every week. So he brought it to class one day and showed me after class. It was the original G-tech. I had never seen it and him explaining it to me all I could think was bull****. Well he asks me to take it to the track and test it to see how accurate it was. He did make me call my parents first so that they would know I would have something that could test acceleration, lol good guy. Anyways went to Darlington dragstrip over the weekend with the g-tech in hand. Me and my father were skeptical. Now it did suck testing it at the track because I was running on test/tune days and would be lining up against people. I hated getting beat at the lights. But with the g-tech you had to let it calibrate and tell you when to go. Now this just added complexity into the whole equation. As by staging I was already on the line lock, clutching the car, and trying to launch around 3k rpm. Now I had to do this while I made sure the thing was level and calibrated. I remember the christmas tree lighting up and thinking I looked like an idiot to people watching. Well finally it said go and I went on it. My timeslip said I ran a 12.49. The G-tech said 12.51. Needless to say I was VERY impressed, my dad hardly believed it. Made a few more runs. It was never more than 2 tenths off. And I was really impressed by that.


Alright done with the long story.

 

If it's a very good auto with early lockup, you can eliminate the drivetrain loss, while letting the torque converter work for you at the beginning.

Ford autos used to be pretty awful -- any car with the AOD was going to be slow compared to a GM. It sounds like they worked on their trannies as much as their engines.

 

I'm pretty sure no one is shifting to 5th on the 3.73's and I haven't heard any mention of riding ont eh rev limiter either. I've got a spreadsheet I will have to dig up, but I am pretty sure the gearing/rev limiter are darn near perfect for crossing at the top of 4th with stock power.