n/t to turbo transaxle swap problem

[cord]

i put a non turbo transaxle in my 1990 tsi fwd. the fly wheels have to be swaped and so i just used the flywheel, cluch disk and pressure plate from the non turbo. the problem im having now is the clutch slips under boost.is the non turbo presure plate weaker? the disk looked realy good almost new. and if so can i put the old pressure plate back in on the non turbo clutch and fly wheel?

 

[bryanwheat]

The non turbo clutch disc is a smaller diameter so there is less surface area, the pressure plate is also weaker so it doesn't hold as much power. You can not use the pressure plate from the turbo because the diameter is different and the step is different. If you want to run that setup than you are going to have to run an aftermarket clutch for the non turbo and hope it holds. That transmission is also weaker than the turbo transmission.

 

[cord]

ok thanks ill look into ordering a new clutch.

 

[9!'clipseDOHC]

Bryanwheat is dead on. Here is the problem with going this route though. N/T performance clutches are not readily available or as easy to find as the turbo ones. Even if you find one, spend the money for it, install it, and it holds... depending on how much power you are making, you will just end up killing the N/T transmission, and the money you spent on the N/T clutch would be wasted. I would spend your time and money looking for a good turbo transmission and go back to that.

 

[92AWDHX40]

Yes they can be found for cheap got mine cheap, then it was rebuilt, when i was n/t couldnt find a good nt clutch either.

 

[cord]

im going to put some thought in to this. i researched the trans parts and looks like i can build it to handle plenty of horse power also found a stage 5(dont quite know what that meens)cluch and pressure plate that claimes 300% more torque strength than stock. still need to do some math dont know what peak torque was on a non turbo,so my though is i can most likely make this work my question is will i still want the lower gear ratios after adding power? are people gearing these up or down at the track?

 

[pauleyman]

Why aren't you planning on the correct f5m33 transmission, clutch and flywheel that are supposed to be on the car anyway?

 

[cord]

why? because i put this one in and im quite a bit faster accelerating with the lower gears in this trans. why else? just wondering if i spend the money to make it all strong, will the lower gears still have the desired affect at 350-400hp? iether way im going to have to do an expensive build. if this trans is going to be faster then i want to build this one. if not ill go back to the other one. thank you everyone for your input.

 

[9!'clipseDOHC]

why? because i put this one in and im quite a bit faster accelerating with the lower gears in this trans. why else? just wondering if i spend the money to make it all strong, will the lower gears still have the desired affect at 350-400hp? iether way im going to have to do an expensive build. if this trans is going to be faster then i want to build this one. if not ill go back to the other one. thank you everyone for your input.

I do not know. I would contact a DSM transmission shop and ask around. Let us know what you find.

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[cord]

i talked to tmz performance and found out that i can run a W5M33 converted for fwd and have gearing options. the stock fwd transaxle for tsi only has an option for 5th gear. the w5m33 when converted also has the highest torque carrying capability. all i have to do now is see how much its going to cost thanks for the help!

 

[SpeedTech720]

I am also interested in what you find. I have a n/a fwd trans in my car right now but the clutch is slipping and it's starting to grind so I'm in the process of buying a turbo fwd trans. For a daily driver I think the gearing is too short since 1st gear is almost useless and 5th on the hwy runs a little high rpm wise I think.

 

[Peterbeter]

From my experience with trans work, it is going to be very expensive. Unless you are just swimming in money, there are far better things to spend that kind of money on to get better results.

 

[cord]

the w5m33 trans I have decided to go with is an awd transaxle converted for fwd application. with this i will have some options for gearing. i liked the way 2nd and 3rd gear puled with the non turbo trany. 1st is already to short though, and with added power its just not a good idea, also the clutch did'nt last long. its still going for now.... 5 pounds of boost and it slips though.