smsayler

Instead of waiting for the auto to fail, I just decided to put a 6 speed in her. I'm doing an 01e from a b5 s4. Already bought the tranny and diff. Already have the shift linkage. Still need a prop shaft, anyone know if there is a factory one that will bolt up? I plan on ordering manual s8 tranny mounts from Europe, pedal assembly from an a6, still need to figure out front cv shafts also.


So I just figured I'd make a thread and see if anyone knows anything in particular I should watch out for. This is being done at a high end performance shop with access to any machining required for custom fabrication, but I don't think there will be much of that from reading other 6 speed swap threads.

Also am putting in a lower ratio 6th gear as was advised in other threads.

Any advice is appreciated!

Also, what's the value of a manual s8 in the US? I saw one on here listed for $15k. Is that a realistic value?


Thanks!

tozoM8

Get a drive shaft from an A8L. They are 4.5" longer.

pbarrow

Mine has been for sale here for some time here with no takers. It is such a fab car I thought it would be worth a lot more. You will know the street value of a top notch conversion tonight at 8 pm when the bidding ends: Audi S8 6 Speed Manual Transmission | eBay

Optimusglen

In for later, when I finally do a 6-speed swap.

But yeah, if you have an S8, you've got the right final drive ratio to match the B5 S4 transmission.

JAA 4.2

I'm collecting parts to do mine as well. You will need UrS4/6 front halfshafts plus a spacer for one side.

Driveshaft - New D2 S8/A8 6 speed (6mt) Cardan/Driveshaft, Advanced Automotion

You will need the Euro front subframe, not trans mounts unless I'm mistaken. Rear diff can stay like noted above.

I'd also get a better clutch than a stock B5S4. - this is a pretty good deal.
https://jhmotorsports.com/shop/catal...27t-p-822.html

smsayler

Thanks guys.

Isn't a stock s4 clutch good for 400HP? I don't really plan on modding the motor, and I typically don't beat on my cars...

smsayler

And the rear diff came with the tranny, so I guess I'll just sell it.

JAA 4.2

Stock S4s made 250hp, and they have a dual mass flywheel that is heavy and prone to failure. RS4s made 380hp? I think. You can use a B5 RS4 clutch ($450), but those are not as robust as a B7 RS4 clutch. Plus, Rock Auto sells B7 RS4 clutches for $137. Those require JHM to machine an aftermarket B5 flywheel for $250, which is what the whole kit is that I listed.

I have a good B5 S4 clutch/flywheel I'd sell for cheap as I have no use for it. It came with my B5 S4 driveline pallet of parts if you don't have one.

TwoSeven

How cheap are we talking, and where are you located? I am using a B5 O1E with the 2.7t spacer, so I would need the flywheel shim with this setup, yes? Thanks in advance.

~Sam

JAA 4.2

Hi Sam,

I don't know if you need the spacer.

Guy that sold me the trans said the clutch had 10,000 miles on it. Car was stock. It overheated and he parted it out. $100 + shipping for the flywheel, clutch, pressure plate? I'm in Detroit metro.

John