Welded differentials

[betamotorsports]

Far be it for me to criticize someone's setup, but 600 lb. in front springs on an ITS S30 is at least 200 lb. in. higher then I've heard anyone run, and that includes the Chet Whittle/Keith Thomas ARRC winning car. I do know of a few guys down in Australia running 600/450 on their S30s but they have a lot of chassis reinforcement done and are definitely beyond IT levels of prep.

Maybe it works and more power to the folks that make it work. Its always better to try something different with the chance that you'll make your car faster then to copy and know your car will be just as fast.

[Ron Earp]

425lb F / 350lb R.

I think 600F would be far beyond the stiffness of the chassis. 425-450 is pushing it I bet.

[JeffYoung]

Not to disclose any of your secrets but I thought you were higher than 425?

I tell people about the 600s in the front of my car and they say the same thing...won't work. Seems to though.

[Ron Earp]

Not to disclose any of your secrets but I thought you were higher than 425?

I tell people about the 600s in the front of my car and they say the same thing...won't work. Seems to though.

450 it says on the spring, looked tonight. My bad. Not any secrets around here - if folks like to go as slow as I do....

Seriously, the 450s feel great in the car and were the single best thing done to the car, replacing the 325s that were in it. Now working on that other stuff like struts....

R

[racer_tim]

HEY, this is the VW forum. We don't do RWD in this section. All you Datsun/ Nissan guys, get over to your own forum.

hehehe

[veeman]

I just got the chance this weekend to try a welded diff in the rabbit. I read a lot of info here and talked to a few other racers before installing it, but I'm glad I did.

I was initially nervous about the stories I'd heard about the "push" and adapting driving styles based on the locked diff, but it really wasn't that bad. After a few laps, I was used to the "get on the gas" through the corner thing and was loving the grip.

I need to do more work on the suspension to dial in some more rotation, but that'll come soon.

I've driven rabbits with the open diff, limited slip (Quaife) and now the welded diff and my vote is with the welded setup. The only thing I don't really like is having to muscle the thing around in the paddock / false grid.

[racer_tim]

Yes, it does require "Popeye" type bicepts to make 90 degree turns in the paddock, but you need to learn to setup your paddock space so you can just "drive in, drive out" without making those really slow 90 degree turns.