333pg333

It's actually the S2 r&p into the 5 speed box. Great for city and track driving. Not perfect for longer touring. You always felt like you wanted an extra gear. That's kinda why I like the 6 speed. Similar lower/middle gearing to the modded 5 speed but with the extra gear. Perhaps not for people that want to 'drive on the tq' rather than 'rev on the hp' if that makes sense. I check some videos and can see that it's a great mod for the track. Once we switched to the 6 speed I didn't think we lost too much due to too short gearing. I'd like to try a decent torquey motor with the stock 5 speed gearing though.

blade7

Me too .

Jay Wellwood

I'll let you know how it turns out.

Next part is to source the LSD for the 951 5-speed.

Any suggestions?

azbanks

I just sent a request to a friend in Europe to look out for a few models of Audi gearboxes. They have 5th gears that range from .48 to .68

093 Serial Number prefix 3Q 0.48
016 Serial Number prefix 3T 0.60
013 Serial Number prefix 3T 0.60
016 Serial Number prefix 3U 0.64
013 Serial Number prefix HE 0.68
013 Serial Number prefix HF 0.68

I will keep looking here in the states.

pole position

OS Giken , Guard ...

Dutch944

Thanks! I've been calling some company's here in the netherlands but I did not find anything yet.

Oh and maybe you know this; I'm assuming that we need the gear for both shafts? Or am i missing something?

sherry66

Patrick, thanks for posting up those charts, very usefull.
While having the turbo gearbox rebuilt , we noticed it had picked up on the cw/p and first gear, so swapped an s2 cw/p and gearset into the turbo casing keeping the lsd and cooler. With the 3 litre engine it accelerates quite quickly !

333pg333

It certainly would! JET951 has a turbo'd 16v S2 motor with this mod and it's a rocket! I'd love to compare it without the S2 cw&p as I'm sure it has enough low down tq to compensate. Just out of interest more than anything else.

azbanks

Yes, 5th gear is a set. Van Rocks!

Dutch944

Yeah i was already assuming that, but i was wondering if the part number for the gear was for the set or just the final gear..

azbanks

Sorry, my mistake. Those are the codes/part numbers for the whole transmission.
I don't have part numbers for just the gears/ gear sets. I wish I did.

Dutch944

I'll check, i had a number of a gearset! Just have to see if i can find it again..

Raceboy

If anyone is looking for a cheap way to increase grip at the rear, Audi V8 rear Torsen diff can be fitted to 944/951 gearbox. Requires just minimal machining and you can get 108mm output flanges for some beefier axles.

I made this mod to my S2 gearbox, total cost was ~200 euros. Not as good for track driving as clutch type LSD (Torsen does not work at braking, only acc), but for street car it is a very good option. Doesn't drag tires when doing tight turns on parking lots etc.

333pg333

200 Euros including the diff??

Dutch944

Do you have a part number for the diff?