Another advantage for large turbo'd cars with autos is that they stay under boost between shifts. Manuals typically don't....even if you powershift.

 

If that is trtue, then why shouldnt the auto be faster than a manual car? Or is it just that the auto cant get off the line as fast thus making it harder to make up distance?

My friend tip 996tt feels extremely quick cause it just goes, no shifting lol...

 

The larger the turbo...the faster the autos are over manuals on a drag strip.

 

every one I know that 1/4 mile his car seriously has beefed up trannies with launch control.. Im talking about street cars that do 9s. My evo 8 does mid tens and its a 6speed. guess what ... its a challenge to learn how to launch it( 2 step for boostbuild up, and useing the hand break to hold it)... all in a matter of seconds and still watching the tree. The porsche is even worse... it wheel hops, u cant build boost- just ease it at 3K rpms,.. and if ur lucky- u might get a descent 60ft once in a while. as much as I love my TT.. i hate it at the 1/4 start line.

 

Ohh so this is just for the larger swapped turbos, or in general?

 

An AWD 996TT will never be a good 1/4 mile car in the grand scheme of things. Sure, we will get into the 10s, but that is probably close to the limit. Anything more will require such serious work (tranny, gears, etc) that it probably won't be worth it.

 

Yea im starting to see this after lots of research and threads on here. I thought these cars would have the potential to be insane 1/4 mile cars, but ig uess they just werent built for it.

On the other hand, on the highway these cars must be snap your neck insane fast

 

I agree. I still have yet to see a tuning package that broke into the tens. A package that does not require custom program and does not require an engine job.
I just think that our cars are too heavy for any 1.3 bar program to get it down the track in less then 11 seconds... no matter how big the turbos are.
For bigger turbos u need more boost fro them to be more efficient- we are all at 1.3 bars at best... and anyone stating that they r in the 1.5 or 1.6 bars on a stock engine is nuts in my opinion. That how sharky ran the 10.9 last year- he had a custom ecu with higher boost.. thats the only way... and he has a TIP.

 

I am convinced that Porsche execs would shoot us if they ever saw us running the 1/4 mile in our cars...

In all honesty, it's just like MARKSKI said, to really run fast you need a TH-400 auto tranny and chassis that is built for the 1/4 mile. You will need the gears, the suspension, the engine location, etc.

The Porsche 911 was never meant to be a 1/4 mile car. If you want one, buy a Vette, Viper, 'Stang, F-body, etc and drop a twin turbo setup on them. They will peel the paint off of the side of a house and probably cost you a lot less. However, if you want to blow people away on the highway, pick up a 911 turbo, TT Viper, TT Z06, or single turbo a MKIV Supra.

 

I agree with everything you said...

 

His best is a 10.62 @ 135 I do believe. Getting into the 9s will require some serious work, however. Heck, getting low 10s is going to be hard enough. I can see him shattering a tranny before that happens.

We just aren't 1/4 mile cars. Hitting 10s in your EVO is impressive; especially with a 6sp. How long is your 1st gear? By the way, are you familiar with Batlground here in Atlanta? They have a 700 (maybe 800hp) EVO. I forget what they put down to the wheels, though. They used to have the 1100hp MKIV Supra that ran 8.65 @ 171mph or so.

Now, if we could make 1st gear a bit longer in our 6spds...

 

Pretty much when you start swapping turbos.

When you have smaller turbos...or multiple turbos, you have less lag. But as the turbos get larger, or you go to a single...lag is almost always increased. Sometimes by a tremendous amount. The 911TT uses two turbos...so lag will never be as bad as some of the Supras with huge singles...but it will still be worse with large turbos.

Anyway...lots of lag makes it hard to launch under boost...and as you shift manually...your rpm drops taking you out of boost again.

So typically when talking about large turbo'd cars...autos will do better on a dragstrip, but manuals do better from a roll (less drivetrain loss)...assuming both cars are making the exact same crank HP.

 

Agreed. But one thing I really like about my AWD TT is that I can floor it at 50 mph and it just goes. My Supra instantly (I mean once it hits boost) breaks it's drag radials loose. I'm sure Viper's and Z06's have the same type of traction issues that the Supras do.

 

Ahh yea i see, i pretty much knew all of that but got confused about the original answer, thanks again Scott

 

Thats why Im very skeptical when guys online go around saying they do 10s in TTs. Ive been there many times.... jsut not in a tt. and to build a Tt that will do constant 10s requires so much money... at least $50k with the engine job and the correct tuning.
I bet that most of the guys here online, all which I respect, that have engine jobs and 800HP cars would have a hard time at the 1/4 track- to go below 11.0 sec. On any given day, that is... cause lately too many excuses for not running well at the shoot outs... too hot, the car is not set up for it, boost leak, etc..... those r not excuses in the real world when u loose a race.
just my opinion, no harm intended towards anyone.