Is there a company out there that makes lightweight componets for the quattro drivetrain? OR does anyone have a cutaway view of the system. I am thinking of trying a different approach with this car. Instead of adding power first i want to rid it of all the unsprung weight that i can. I was thinking of getting a lightweight flywheel, driveshaft, axles, wheels, and anything else that you can help me think of. How effective do you think this will be? I am thinking that if i can shave off atleast 25 lbs of unsprung weight then i will be doing really good.

 

Well rims would be a good start. Clutch flywheel. Im not sure axles would do u much good. Weight reduction would be...New lighter seats.... take out spare tire...lighter battery....Lexan rear winow (60 lbs) i cant think of any more right now its late lol

 

YES!!! Audi does and its called FWD! No seriously thought I dont think you will find much in the world of Audi lightweight parts like you are looking for, you can always have something custom made, but screw that. Do the little lightweight mods and go BIG TURBO!!

 

Flywheel, driveshaft etc. are not unsprung weight.
Extra weight on them does contibute to drivetrain loss though.

Unsprung weight is thesuspension,wheels andanything directly connected to them that is notsupported by the suspension.

Just wanted to clear that up before someone tries to be a smartass about it.

I think lightweight parts are a good investment either way. Only problem is you canlose as much weight by jumping on a treadmill instead of spending $50 on lightweight lugnuts. Driving around with a passenger or groceries will kill any weight savings you may have.

Think about stuffpeople add to the car too...
I'm sure a the weight from a 12" sub and ampcancels out3 lightweight driveshafts. No point in lightening a car that you're adding non-performance weight to.

I'm not saying any of this applies to you, just a thought.

 

all this flywheel talk makes me wonder what the stock flywheel weighs...

 

22lbs i think

 

He's correct, about 22lbs. Stock "Fat 5" Wheels weigh in at near 30lbs each. "The Fat 5 wheels come in a polished finish with a thick clear coat and weigh approximately 21lbs each. While certainly not a super-lightweight wheel, they are plenty strong and are actually six pounds lighter than the standard six-spoke TT design wheels." A stereo system can easily add a couple hundred pounds with amps, wiring and boxes. Weight to me is a better thing to remove or at least not add(in moderation on something like an Audi TT where luxury is as important as performance) as not only does it improve your acceleration, it also improves handling as well.

If this was something like my old firebird I would strip out the back seat, the carpet and padding, stereo (used a removable boombox that ran on 12V from a plug in the car for when I wanted tunes), fiberglass shaker hood (hidingfit the roots blower). But that car wasn't very nice to drive around and the only attention it really grabbed was that of other guys and cops with the rare exception of the occassional "fix it upper" woman. Same if Iwas going to build a"go fast" Honda, engine swap and strip it out. However, I purchased this car (and I am sure most others did as well)because of the combination of style, luxury, and decent performance potential that the TT has.

*Editted to correct bad weight info for wheels*

 

 

Thaks Cincy for the quick correction. I will edit my post so that I don't pass onincorrect information (that's what I get for listening to the Audi salesman while I waited on my car.)

 

but lightweight drivetrain parts would lessen drivetrain loss as far as whp is concerned how much of a difference would say a lightweight flywheel make