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Old 04-01-2017, 06:18 PM   #11
Nick M3
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Quote:
Originally Posted by rumatt View Post
I asked Dan about the Wavetrac (sent him that video) and he replied this:

Of course I wasn't comparing it to an open diff, but another helical


He doesn't allow anyone else to install his diff internals.
I've had torsen diffs. They spin like an open diff on a lift. The Wavetrac spins both wheels in the same direction. So there is *something* happening there. It's probably not much, but more than zero is meaningful.

Either way, even a basic helical diff is going to be transformative on that car.
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Old 04-01-2017, 07:29 PM   #12
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Quote:
Originally Posted by bren View Post
Yup, I've had clutch diff's in many cars, no reason not to go that route imo.
Yeah but they're stock, right? Designed to be uber-quiet.

JV do you know anyone who has actually had the MFactory clutch-type diffs? If they're on par with Blanton and Dan's diffs in terms of noise then I'm sold. I just don't want the thing clunking and screeching like a cat in a fan belt every time I go to the store to buy groceries.
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Old 04-01-2017, 07:55 PM   #13
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No, but there is no reason they should be louder.
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Old 04-03-2017, 08:38 AM   #14
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Originally Posted by Nick M3 View Post
We just installed a (used) wavetrac unit in Mike's E90, but haven't driven it yet. It does spin both wheels in the same direction on the lift, but I can't speak to how it behaves in reality.
I'd be curious what you see if you do some one wheel zero traction testing.

Here's another user claiming the wavetrac acts like any other helical

http://forums.viperclub.org/threads/...-others-at-all.
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Old 04-03-2017, 08:46 AM   #15
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Quote:
Originally Posted by rumatt View Post
I'd be curious what you see if you do some one wheel zero traction testing.

Here's another user claiming the wavetrac acts like any other helical

http://forums.viperclub.org/threads/...-others-at-all.
I think that you are overthinking this. Especially since you have ADB for those super rare situations where you'd actually have a problem.

That said, I would not pay extra for a wavetrac vs. a regular helical.
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Old 04-03-2017, 08:54 AM   #16
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Especially since you have ADB for those super rare situations where you'd actually have a problem.
I never figured out whether ABD actually does anything on the e46.
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That said, I would not pay extra for a wavetrac vs. a regular helical.
That's what I'm concluding as well.
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Old 04-03-2017, 09:23 AM   #17
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Seems like the MFactory helical is what we're going to try?
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Old 04-03-2017, 10:19 AM   #18
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what will Matt make a decision on first, an LSD for his e46 or a Porsche?
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Old 04-03-2017, 10:52 AM   #19
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what will Matt make a decision on first, an LSD for his e46 or a Porsche?
All the choices suck!

I'm mostly finding people complaining about the MFactory clutch-type diff.

I'm going with MFactory helical unless they convince JV that their clutch diff is tolerable on the street.
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Old 04-03-2017, 11:16 AM   #20
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Quote:
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All the choices suck!

I'm mostly finding people complaining about the MFactory clutch-type diff.

I'm going with MFactory helical unless they convince JV that their clutch diff is tolerable on the street.
It looks like they use metal clutch disks(?) Yeah, that'll chatter on the street. If that's going to bother you than don't bother.
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