What makes the GT2 have a slightly better top end speed?

Is it different size tyres, higher rev limit, gearing, or something else.

Just wondered if i will have to have my rev limiter raised to achieve a true 200Mph or it can be achieved through different sized tyres.

For any GT2 owners the rev limiter on the tt cuts in at 6750rpm.

Cheers.

 

Basic answer: more horspower and RWD (less driveline loss)

 

yep. simply more power to the wheels. At top speed the primary
consideration is wind-resistence, which is quite close between
the two cars, so power will decide. Lowering the wind resistence
just a little might tip the balance with either car. I recall an old
article from the 60's (!) where it was claimed that adding a rectangle
of metal to the roof of a Jaguar XKE, the size of a license plate
lowered it's top speed by 10MPH...
Joe

 

I was of the understanding that the tt's top speed was limited by the rev limiter. Ive upgraded to a stage 4 but i still hit the rev limit at the same rpm so my top speed will be the same.
The tt has a lower drag co than the GT2 so has less wind resistance.

 

Doesn't the (stock) rev limiter hit at around 196-198mph in 6th gear?

 

If you are hitting the rev limiter in 6th gear, more power will not help you (other than getting there faster). I wouldnt suggest removing the rev limiter. Youll either need to get a higher final gear (lower #, right?) to make each gear longer, or you will need bigger tires (wouldn't recommend this either).
I don't own a Porsche, so I can't say what the 6th gear redline is at. :thumbsup:

 

But also some tuners offer a higher redline, i know my car at stg 2 redlines at 7k!!

 

Yep. Mine's over 7k as well.

 

I didn't mean to imply the engine couldnt rev more, I just ment I wouldnt remove the rev-limiter and go above the stock redline without further prep or tuning.