Okay, no experience with Quaifes in Saab applications but enough otherwise.

First off, there's damn few clutch-type limited slips that are going to be (a) driveable and (b) durable in street FWD applications. I'm sure there's one out there, but I can't think of any. I wouldn't buy one.

Secondly, Quaifes in the applications I'm familiar with live quite happily up to 500-600HP and maybe more. IF they're kept lubricated and IF the lubricant is kept to a reasonable working temperature.

Quaifes - and Torsens, and Tochigi Fujis, and Gold Tracs, and Peloquins, all of which are similar helical-gear designs - generate heat. The more wheelslip, the more heat. So, if you're running open-track/track-school events, and particularly if you're running a bag more than stock HP, you *must* instrument the lube temps and you *may* need a cooler and pump. Even synthetic lubes don't like temps much above 280degF.

As for cornering behavior - they transfer torque away from a slipping wheel. They don't care about wheel speed differences. This can make the car 'hunt' somewhat when accelerating hard over uneven surfaces. In cornering, though, this behavior is usually very desirable, as it produces a near-RWD 'throttle-steerability'. They can amplify torque/deflection steer so getting wheel offset right is important.

General rule of thumb is that in track use a Quaife is worth 1 to 2 sec/mile off your lap times vs an open diff, and in a big, heavy, tall car like a Saab (or a Taurus SHO) that number may be conservative.

posted by 198.144.20...

• who has a Quaife and where did you buy, nickR, Mon, 7 Jun 2004 20:58:53
  • Re: who has a Quaife and where did you buy, ckpaden, Tue, 8 Jun 2004 18:16:21
    • the dreaded Phantom Grip concept, nickR, Tue, 8 Jun 2004 22:17:30
      • Re: the dreaded Phantom Grip concept, ckpaden, Wed, 9 Jun 2004 07:32:58
        • I believe the swedish supplier is Sellholm, nickR, Wed, 9 Jun 2004 09:06:34
          • Sellhom can't be 1/2 bad ... Speedparts new car has one, Trev, Wed, 9 Jun 2004 19:51:14
          • Re: I believe the swedish supplier is Sellholm, ckpaden, Wed, 9 Jun 2004 09:25:32
    • What's this about converting a regular diff to LSD?, FrankenSaab, Tue, 8 Jun 2004 20:27:31
      • call scanwest. they do the phantomgrip unit. n/m, chrisx, Thu, 10 Jun 2004 21:25:20
        • I wouldnt, unless you like frequent rebuilds, nickR, Thu, 10 Jun 2004 23:02:49
      • Re: What's this about converting a regular diff to LSD?, ckpaden, Wed, 9 Jun 2004 07:29:53
  • Why Quaife?, TERRY, Tue, 8 Jun 2004 17:58:17
    • Quaife can't handle the power., ckpaden, Wed, 9 Jun 2004 07:37:19
      • Quaife can't handle the power?, JEM, Tue, 15 Jun 2004 22:41:40 <-- Viewing This Message
      • Re: Quaife can't handle the power., NOD, Wed, 9 Jun 2004 10:47:49
      • the 6 speed was never meant for turbo cars, nickR, Wed, 9 Jun 2004 09:09:29
        • Re: the 6 speed was never meant for turbo cars, ckpaden, Wed, 9 Jun 2004 09:27:10
          • Vauxhall Cavalier, Opel Vectra, SAAB 900, nickR, Wed, 9 Jun 2004 13:07:34
      • Re: Quaife can't handle the power., sean, Wed, 9 Jun 2004 08:12:11
        • Re: Quaife can't handle the power., ckpaden, Wed, 9 Jun 2004 09:29:15
      • A few of my friends in the UK are using..., zeke, Wed, 9 Jun 2004 07:49:53
        • Re: A few of my friends in the UK are using..., ckpaden, Wed, 9 Jun 2004 09:30:18
          • Damn Chris, sounds like there might be a good market, Steve88SiS, Wed, 9 Jun 2004 14:00:41
            • I know we talked about this, ckpaden, Wed, 9 Jun 2004 16:52:13
  • Re: who has a Quaife and where did you buy, MTAERO , Tue, 8 Jun 2004 17:50:54
    • but the Vauxhall tuners sell the same part for, nickR, Tue, 8 Jun 2004 22:14:54
      • Re: but the Vauxhall tuners sell the same part for, Pa Taket, Wed, 9 Jun 2004 07:08:03
        • there are turbo Vauxhalls too, nickR, Wed, 9 Jun 2004 07:14:57
          • Re: there are turbo Vauxhalls too, Pa Taket, Wed, 9 Jun 2004 12:33:19
  • Vauxhall Cavalier uses F25 tranny, nickR, Tue, 8 Jun 2004 09:25:29
    • Shipping, Pa Taket, Tue, 8 Jun 2004 11:54:01
      • Saturn Ion redline..., GM, Tue, 8 Jun 2004 12:58:14
  • Re: who has a Quaife and where did you buy, jp, Tue, 8 Jun 2004 08:59:15
  • Re: who has a Quaife and where did you buy, sean, Tue, 8 Jun 2004 07:59:52
  • $1,200 is not a bad price, IMHO, Pa Taket, Tue, 8 Jun 2004 07:52:10
  • Re: who has a Quaife and where did you buy, Alex C., Tue, 8 Jun 2004 06:58:19

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