John S. wrote:
> On Jul 21, 12:16 pm, "C. E. White" >
> wrote:
>> I am interested in an estimate of the top speed of the following
>> version of a 2006 Mustang Coupe with the 4.0L V6 and a manual
>> transmission. Assume the base model -
>>
>> 1) As delivered. I assume Ford included a speed limit in the PCM
>> 2) With a chip that removes the speed limit
>> 3) With a chip, free flowing duals (cat back), and a K&N intake.
>>
>> Would this last combo actually be able to exceed 120 mph?
>>
>> Ed
>
> As delivered from Ford the V6 is limited to 113 MPH... You don't put a
> "chip" in this car. You will need to buy a handheld tuner and reflash
> the car. Most of these will either remove the limiter or allow you to
> raid the limit. The car should easily be able to hit 120 MPH...
>
> Besides making sure you have the properly rated tires, I would also be
> leery of the stock drive shaft... they are pretty much junk... They
> vibrate like crazy.... also I don't remember exactly when Ford
> switched but the early drive shafts did NOT use C-clips to hold the u-
> joints in... instead they were staked in... but eventually the stakes
> would give way any the drive shafts would come apart... which is very
> bad thing to happen at 120 MPH... luckily the ones I know of were all
> on the dyno... but still caused a fair amount of damage...
>
> Even if you drive shaft is clipped I would still recommend an after
> market drive shaft if you plan on doing a lot of high speed
> driving.... I couldn't keep a rear pinion seal in my car until i
> replaced mine...
>
Interesting comments. Is the drive shaft on the GT the same as on the
V6? I have had my S197 GT upwards of 130 on a couple occasions and not
a hint of any vibration at all.