mph?

 

One run went 13.1 spinning through 2nd so ya more in it for sure lol

 

That Mustang was not stock................he had the driver mod.

 

NICE!

 

I wish I could afford that mod.

 

Good time with 3.31's wonder what the same driver will do with 3.73's 12.5 ?

 

maybe, maybe not on the 1st question because at the track the surface is treated and close to ideal

but on the street the pirellis will make a difference if you had a chance to drive them back to back it would be noticeable

the 3.73s will shine for somebody who nails down the launch and also when rolling on the throttle when already moving

higher (numerically) gear in a car at these elevated power levels becomes tricky because of traction but overall if you have traction and skills the end result is better acceleration from all ends

so i don't think anyone is getting duped, it was offered from the factory and i'm sure Ford did a lot of testing which resulted in the final gear offerings matched to the internal trans ratios, this car was built to finish the 1/4 mile on the limiter with 3.73s in 4th gear besting the camaroSS period

 

Im still putting my money all stock on....3.55 for the Showroom Stock Record. The 3.73 will be better in Summer Air.

The 3.73 is either going to have to ride the limiter the last 100' or go to 5th. Their is not enough traction to take advantage of its superior torque multiplication off the line. It hits the limiter at 110 mph trap (112 mph finish line).

3.55 is going to be right at the 7000 rpm redline in 4th in "Mineshaft" AIr.

3.31 is going to be turning 6500 rpm in 4th.

In my opinion the 3.31 will be less than a 1/10 off the pace compared to 3.55. The 3.73 might be able to run with the 3.55 despite laying down the last 100' without a launch advantage but I will have to see it.

If 3.55 and Pirelli All-Seasons are good enough to turn 12.8 in a 4.6L with CAI/Tune why do you act suprised when a car with a 12.115 (3.66 x 3.31) vs 11.999 (3.38 x 3.55) launch ratio and at least 80 more bhp runs a 12.7?

Im not so sure I believe the 13.0 @ 116 mph run by Motorweek in the 3.31 Convertible or if it was run on a track versus magazine timing equipment. If it was run on 5th wheel timing equipment that gave actual finish speed that would be 114 mph trap so looks more creditable. All the Magazine Coupes have been 3.73 so they have been having to shift to 5th so they are only getting 110-112 mph traps.

 

i thought the mags were still trapping in 4th? (111mph)

either way i think 3.55s would be a good choice, especially in negative DA

 

I live my life a quarter mile at a time.

 

But the nearest bathroom is a 1/2 mile away, sorry.

 

Wow. At this pace it wont be long until someone beats the camaros best of 12.58. I am betting that Evan Smith beat it for sure...we will see.

 

when does that mag issue come out anyway?

 

If so they are already into the limiter. Im guessing thats from the initial Motortrend Test. If so the same test they list the max speed in 4th as 110 mph. That might be the 6850 rpm soft limiter instead of the 7000 rpm hard limiter.
Tirerack quotes 763 rpm (But they also list the MB OEM Tire as the Ford OEM. Im not sure thats correct.) Ive also seen quoaes of 769.5 rpm for the Brembo Package Tires.

Using the hard limiter and the 763 rpm figure I get 111.8 mph as where the limiter cuts in. So to run 111 mph you basically would have to be against the limiter for the entire speed trap.

I really would like to know Mike's 60' and Trap Speed for that 12.77 run in the "Stock Order" Premium Coupe w/ Base 3.31 Gear and 18" All-Season Tires.

 

im sure he'll answer any questions you have if you call him monday

 

60ft and mph at 1/4 is what I am interested in.

 

great run!

 

I've seen so many people run with that sheet covering the rear quarter panel but I've never asked anyone what they use. So what is it? A special product or straight saran wrap?

 

Helps from welding nice hot rubber to your paint and having to scrape it off after burning out, I've learned the hard way.

 

There is also a product called "Burn-Out Gaurd" that you spray on the surface before racing then it washes off after.