Which car wins in a 1/4 mile with the same mods a 996tt and a 997tt and why ???

 

Assuming both cars start from stock, the 997tt as it has more power to start with?

 

Ok TTboost but if both cars have the same mods let say like your car,wouldn't the 996 even the 997.Isn't the difference betwen a 996 and 997 the ECU program and the turbos ??

 

Don't forget about the better front/rear diff for better awd traction on the 997.

 

best driver wins...LOL

 

So aerodinamic would be the diference because the engine is basic the same,std transmition are idem.It is ease to match a 997 having a 996 then.

 

stock 997 fuel system is better.

 

Thanks Dr_jitsu

I need to keep impruving my 996tt for not letting those guys beat me

 

For the money you save, you can build 20 fuel system for your 996TT (dual 044 pumps, rails, lines, injectors).

If you want to make really big power for less money, the 996 is the better choice. If you start w/ 2 stock cars, the 997 have several performance advantages.

 

My 996tt has k24,some german ECU program and first generetion fabspeed muffler with 100 cel cats and i have beaten 2 times a secuencial 997tt.He beated me once i drove badly.

 

997tt wins because of the traction control.

 

We're not seeing that based off of 1/4 mile runs, or even 60-130's overall.

Honestly, the only outstanding 997 example is the Sledgehammer, which makes a true 915 rwhp and has extremely fast boost response allowing the car to be shifted only once during the run (a testament to the turbos and tuning).

If Mark or I could have reduced our 4.6x times to 1 shift, I believe it would have saved 3-4 tenths from the run if you consider not only the saved shift time, but also the time the car takes to fully come back into boost and begin accelerating at the same pace it was before the shift ocurred.

Still though, considering that Sledghammer ran that time on stock internals, at the stock weight...it's pretty incredible.

 

A more applicable question is who wins with the same hp. The 997 TT wins any drag race in terms of ET. But take a 996 TTS or X-51 (I.E. with K24's) and ECU flash and exhaust vs a 997 TT with just ecu flash and exhaust and the 997 TT will run a faster ET but the 996 TT will trap about the same, both should be putting out about the same power as well assuming stock turbos.

The 996 TT sucks at launching and does not use the front wheels much.

Not just the traction system, but no LSD in the 996 TT either, which hinders acceleration greatly.

 

Scott,

Sledgehammer if stock isn't running 8000 plus rpm's or anywhere close. Not sure about your car, but mark can push his redline. He should be able to stretch those rears. Why can Sledgehammer do it in one shift and mark can't. Is gearing stock? Does the variable vane turbo's and variable cams provide low rpm torque that the other two cars don't have?

 

Stock gearing on all cars. Raised redline on the Proto cars. But it all adds up.

Mark and I could both do 1-shift runs, but because our turbos weren't making full boost until after 60 mph, 2-shift runs resulted in better times then 1-shift runs in our cars.

It's basically a function of lag. With Tym's turbos and tuning combination, Sledgehammer makes a ton of power with very little lag, thus he is well into full boost before 60 mph, which allows for optimized 1-shift runs.