Jump to content
  • When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.

parts and motor porn(safe for work)


BlindRhino

Recommended Posts

That is the supension if you want to go fast on the track. Alot of work to put one like that together, but gives "real" adjustability. Notice teh 4.22 75% LSD? Those are worth a few duckets.....

Hahaha,

Now you guys have seen all my rear suspension secrets....

Link to comment
Share on other sites

My good friend Dave Foley (who had seen a number of BMW factory race car suspension work, Schnitzer, ALPINA etc.,) told me that is where it happens with a trailing arm suspensioned car since their isn't a whole heck of alot you can do with the front. It reminds me very much of my ALPINA car's rear suspension, although my car uses 2002 Turbo rear trailing arms (modified of course) which use slightly larger bearings than a 02/tii trailing arm (and 4x more expensive).....anything for that "advantage" don't you know. I have a 75% LSD as well only with 5.86 gears (it ended its life as a hillclimb car not a road car).

www.alpinabmw2002.com

Link to comment
Share on other sites

I carried three ZF 75% LSD with me., 3.90 4:22 4:44

The 3:90 was only used at California Speedway With a close ratio gear box the engine would rev to 8,200rpm in NASCAR turn 2 on the speedway

The 4:44 was used at Las Vegas on the small track and Phoenix

The 4:22 was used at Laguna Seca, Portland, Seattle, Willow Spring, Buttonwillow,

Link to comment
Share on other sites

Guest Anonymous

Ok mr. schmartypants, most people don't have one limited slip diff, let alone three, let alone three that are 75% lockers. NLA for some time, optimum lock for race cars and fun street cars AND they rarely EVER come available. Saw one this past year but can't recall what it sold for (it was over EUR 2,000- though).

www.alpinabmw2002.com

Link to comment
Share on other sites

At California Speedway I lost a pinion bearing in my 3:90 ZF 75% LSD and had to install my only other spare, a 3:90 with Quaife unit in it. the car was 1.5 seconds slower after that. The Quaife could not put the power down like the ZF 75% diff.

Link to comment
Share on other sites

That I think is pretty interesting (based on the "propaganda" Quaife publishes). My last recollection was that once upon a time you could take a 40% LSD and add various clutch plates to get it to about 70%, but that was many years ago and now I believe that some of those clutch plates required are NLA. I want to say that somehone here posted up a really nice mini-article on that (?). Come to think of it that would be a good one to retrieve, although I am pretty lame at using the search funcition here and it had to be at least five or more years ago.

www.alpinabmw2002.com

Link to comment
Share on other sites

Yeah the Quaife was a big disappointment.

The early 40% LSD can be converted by removing a spacer and adding clutch plates.

I believe that you can use VW LSD clutch plates from a late 70's Rabbit or Scirocco. I ordered some about 10 years ago from Maximillian and they showed up in ZF packaging and was told that it was a VW part.

Link to comment
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
  • Upcoming Events

  • Supporting Vendors

×
×
  • Create New...