Quaife or Wavetrac?

[NorthwestN54]

Wow, those are alot cheaper than I thought! Not saying they're cheap by any means, but I thought a lsd for a mt was ~$4500 for some reason.

[HP Autosport]

Both Quaife and Wavetrac are great. However, Quaife has proven to be more reliable and without the thump and clunk many of you are experiencing(this may due to the installation process since all the units we have installed at our shop do not make the noise).

[3002 tii]

I have a Quaife on my track car and it has been nothing short of fantastic. I change diff fluid every 30k (although not necessary) but the lack if maintenance is a nice added plus.

[dcaron9999]

Originally Posted by 3002 tii

I have a Quaife on my track car and it has been nothing short of fantastic. I change diff fluid every 30k (although not necessary) but the lack if maintenance is a nice added plus.

Do you have your Quaife on Your Z4M or 135is?
Does your diff have a stock finned cover?

[3002 tii]

Originally Posted by dcaron9999

Do you have your Quaife on Your Z4M or 135is?
Does your diff have a stock finned cover?

Quaife on the Z4 and I reused the finned cover that came on the Z4 . Btw it's not a M (if you were wondering why I would replace the M diff).

[Kgolf31]

Originally Posted by 3002 tii

I have a Quaife on my track car and it has been nothing short of fantastic. I change diff fluid every 30k (although not necessary) but the lack if maintenance is a nice added plus.

Have you had the Quaife go into open diff from lifting a wheel over a curb?

That and on ice is my main concern, which makes me want to go to a clutch type LSD

[3002 tii]

Originally Posted by Kgolf31

Have you had the Quaife go into open diff from lifting a wheel over a curb?

That and on ice is my main concern, which makes me want to go to a clutch type LSD

Nope, you gotta be catching serious air for that to be a real concern. I'm not shy when it comes to curbing and I've never had issues.

[Kgolf31]

Originally Posted by 3002 tii

Nope, you gotta be catching serious air for that to be a real concern. I'm not shy when it comes to curbing and I've never had issues.

good to know.

still need to look at my options, but I'm use to how the Z4M drove and want yo try and replicate that....aka static lock.

just concerned with plate wear and tear service...if it is even required/needed

[dcaron9999]

Originally Posted by Kgolf31

good to know.

still need to look at my options, but I'm use to how the Z4M drove and want yo try and replicate that....aka static lock.

just concerned with plate wear and tear service...if it is even required/needed

Identical concerns here. The open diff is not so great in icy conditions, so wondering how well the Quaife does in these conditions.

I learned that the more expensive clutch based diffs (Turner Motorsports, OS Giken, OEM) might perform better than Quaife or Wavetrac on the track but are noisier, and require rebuilds every 2-3 years (if driven on the track frequently).

I got to ask, why are you considering a replacement of your stock Z4M LSD diff - are you due for a rebuild or looking for something different?

[MightyMouseTech]

Originally Posted by dcaron9999

I got to ask, why are you considering a replacement of your stock Z4M LSD diff - are you due for a rebuild or looking for something different?

He does not have a Z4M, he is trying to replicate the FEEL of the Z4M.

[3002 tii]

Originally Posted by dcaron9999

Identical concerns here. The open diff is not so great in icy conditions, so wondering how well the Quaife does in these conditions.

I learned that the more expensive clutch based diffs (Turner Motorsports, OS Giken, OEM) might perform better than Quaife or Wavetrac on the track but are noisier, and require rebuilds every 2-3 years (if driven on the track frequently).

I got to ask, why are you considering a replacement of your stock Z4M LSD diff - are you due for a rebuild or looking for something different?

He's not replacing the diff on his Z4M, this is for his 128i.

[Kgolf31]

Originally Posted by dcaron9999

Identical concerns here. The open diff is not so great in icy conditions, so wondering how well the Quaife does in these conditions.

I learned that the more expensive clutch based diffs (Turner Motorsports, OS Giken, OEM) might perform better than Quaife or Wavetrac on the track but are noisier, and require rebuilds every 2-3 years (if driven on the track frequently).

I got to ask, why are you considering a replacement of your stock Z4M LSD diff - are you due for a rebuild or looking for something different?

OS Giken requires special diff fluid, that they only sell...ironic right?

I'm looking at Performance Gearing and Diffs Online. Both sell the LSDs complete to just throw in the car, which is awesome.

Best part is, is that you can spec your own static lock and ramp angles to custom tune the diff to what you want it to perform like. One major short fall of torsen diffs.

Originally Posted by MightyMouseTech

He does not have a Z4M, he is trying to replicate the FEEL of the Z4M.

I have a Z4M.

Originally Posted by 3002 tii

He's not replacing the diff on his Z4M, this is for his 128i.

Bingo.

I'm replacing the Z4M with my 128i for autocross and track. Per the class I'll be running in for SCCA (Street Touring Extreme), I can add ANY LSD, as long as I maintain stock final drive ratios.

I've already bought APEX 17x8.5 wheels, TCK Dual Adjustable Suspension, along with M3 subframe bushings and for future purchase a swaybar. A LSD is next on my list

I figured I'd be more happy running the 128i into a wall instead of my Z4M, which IMO is priceless. The 128 also has a lemon title on it, so I'm driving it til I blow it up regardless. Obviously I don't want to run any car into a wall, but if I had to I'd run the 128.

[3002 tii]

Originally Posted by Kgolf31

OS Giken requires special diff fluid, that they only sell...ironic right?

I'm looking at Performance Gearing and Diffs Online. Both sell the LSDs complete to just throw in the car, which is awesome.

Best part is, is that you can spec your own static lock and ramp angles to custom tune the diff to what you want it to perform like. One major short fall of torsen diffs.



I have a Z4M.



Bingo.

I'm replacing the Z4M with my 128i for autocross and track. Per the class I'll be running in for SCCA (Street Touring Extreme), I can add ANY LSD, as long as I maintain stock final drive ratios.

I've already bought APEX 17x8.5 wheels, TCK Dual Adjustable Suspension, along with M3 subframe bushings and for future purchase a swaybar. A LSD is next on my list

I figured I'd be more happy running the 128i into a wall instead of my Z4M, which IMO is priceless. The 128 also has a lemon title on it, so I'm driving it til I blow it up regardless. Obviously I don't want to run any car into a wall, but if I had to I'd run the 128.

Car sounds like it'll be a perfect track weapon. Good luck on the build!

[Dackelone]

Originally Posted by Kgolf31

I'm replacing the Z4M with my 128i for autocross and track. Per the class I'll be running in for SCCA (Street Touring Extreme), I can add ANY LSD, as long as I maintain stock final drive ratios.

I've already bought... APEX 17x8.5 wheels, TCK Dual Adjustable Suspension, along with M3 subframe bushings and for future purchase a swaybar. A LSD is next on my list

I figured I'd be more happy running the 128i into a wall instead of my Z4M, which IMO is priceless. The 128 also has a lemon title on it, so I'm driving it til I blow it up regardless. Obviously I don't want to run any car into a wall, but if I had to I'd run the 128.

IF your class allows it I would also DO the M3 suspension bits(tension rods and control arms).

Dack

[Kgolf31]

Originally Posted by Dackelone

IF your class allows it I would also DO the M3 suspension bits(tension rods and control arms).

Dack

Unfortunately, I cannot do control arms.

On arm-and-strut (MacPherson/Chapman) suspensions, the lower
arms may be modified/replaced OR other methods of camber
adjustment as allowed by Sections 14.8.B, C, or G may be used,
but not both

Since I'm using camber plates (which is specified in the sections mentioned) I cannot do control arms, since I gain camber from them.

As for tension rods, gotta look into those.

[HP Autosport]

Originally Posted by Kgolf31

Have you had the Quaife go into open diff from lifting a wheel over a curb?

That and on ice is my main concern, which makes me want to go to a clutch type LSD

You would literally have to launch off the curbing to do that and we all know that is not the fastest way around the track as you are upsetting the car's balance.

I don't think anything short of studded tires will work on ice, not even 4x4 with 3 differentials. Second thought, why would you want to be driving on ice anyway?

[Kgolf31]

Originally Posted by HP Autosport

You would literally have to launch off the curbing to do that and we all know that is not the fastest way around the track as you are upsetting the car's balance.

I don't think anything short of studded tires will work on ice, not even 4x4 with 3 differentials. Second thought, why would you want to be driving on ice anyway?

Ice/soft snow.

I live in the snow belt here in Ohio, it isn't anything surprising to wake up to 8+ inches of snow.

Drove twice in these conditions, and it is just a 1 wheel spin failure coming off of a stop...once it is moving though it is a beast.

Still, the Quaife acts like an open diff under braking and off-throttle...yes?

[dcaron9999]

Originally Posted by Kgolf31

Ice/soft snow.

I live in the snow belt here in Ohio, it isn't anything surprising to wake up to 8+ inches of snow.

Drove twice in these conditions, and it is just a 1 wheel spin failure coming off of a stop...once it is moving though it is a beast.

Still, the Quaife acts like an open diff under braking and off-throttle...yes?

1 wheel drive in the snow with or without LSD diff?

[Kgolf31]

Originally Posted by dcaron9999

1 wheel drive in the snow with or without LSD diff?

Without LSD.

However, with a Torsen LSD, it will act like an open diff in this situation...if you're floating on snow with no traction...it will just spin

[dcaron9999]

Originally Posted by Kgolf31

... with a Torsen LSD, it will act like an open diff in this situation...if you're floating on snow with no traction...it will just spin

http://www.1addicts.com/forums/showp...4&postcount=49

Originally Posted by HP Autosport

For those who think the Wavetrac is superior to Quaife when one wheel is in dirt/snow/ice, here is what one of my E46 3-series customer had to say:

http://forum.e46fanatics.com/showpos...0&postcount=53

Yes, with one wheel on snow and one on asphalt, the Quaife was working and the car accelerated from a stop as it should.

[HP Autosport]

Originally Posted by Kgolf31

Ice/soft snow.

I live in the snow belt here in Ohio, it isn't anything surprising to wake up to 8+ inches of snow.

Drove twice in these conditions, and it is just a 1 wheel spin failure coming off of a stop...once it is moving though it is a beast.

Still, the Quaife acts like an open diff under braking and off-throttle...yes?

You are still okay in snow as long as you have some friction, the Quaife will work.

Yes, the Quaife is open under deceleration and braking so it would not cause any unwanted handling characteristics.

Originally Posted by dcaron9999

http://www.1addicts.com/forums/showp...4&postcount=49

Good find. I think that post deserves a bump.

I have been telling people there is virtually no performance difference between the Quaife and the Wavetrac, although Wavetrac claims better performance.

[Dackelone]

Originally Posted by HP Autosport

I have been telling people there is virtually no performance difference between the Quaife and the Wavetrac, although Wavetrac claims better performance.

Thanks for your wealth of knowledge Harold.