WaveTrac or MFactory LSD?

matreyia · 06-17-2017, 10:33 PM

"My race car sure doesn’t have any electronic aids, and would be hopeless with a pure helical diff fitted."

---I been reading this old ass thread and it appears that the complainer here missed the part where the MFactory fella specifically mentions this subject. He says that helicals work in conjunction with traction aids... so to bash them when you have an old car with no traction control makes no sense.

Good heavens, some folks just want to argue.

ken335AZ · 06-18-2017, 03:32 PM

Just weld the spider gears and never look back.

335e92tx · 06-18-2017, 04:50 PM

Quote:

Originally Posted by ken335AZ

Just weld the spider gears and never look back.

Seen it done many time on GM iron - kind of tough striking an arc on the gears when they still got a film of gear lube but I know some folks that can weld two twigs...

ken335AZ · 06-18-2017, 04:59 PM

I had a buddy of mine who is a phenomenal welder do mine a week ago. I've daily'd welded on a couple other vehicles before and I just wanted something for at least a hint of traction until I pull the trigger on an lsd. He has done dozens of other rear ends on high horsepower GMs and Fords, he's one out maybe a few people in AZ I would trust to do the job right. Only downside is the little bit of tire squeal pulling into and out of a parking spot or doing a u-turn & 3-point.

berns · 06-19-2017, 04:14 PM

My Wavetrac has been doing its job well for 25,000 miles. 4 track days, plenty of hard driving, a few launches, some donuts and a handful of drifts. Absolutely one of my favorite modifications.

Sure you can't go wrong with either.

X2Board · 10-18-2021, 01:26 PM

So, which LSD did the OP go with?

HP Autosport · 11-29-2021, 01:36 PM

Wavetrac limited slip review. Check out his video, like and subscribe!

thormessiah · 05-30-2022, 07:56 PM

I went with M-factory. Very excited to see dragy numbers of the line now 😁

lforter · 01-24-2024, 04:45 AM

While im in a search for an LSD, I must say that where I live that everything is very bumpy and full of hills, the track AND streets paired with the suspension dimensions of an 135i I am in constantly lifting up 1 wheel (I have videos of tracking my 135i where you can clearly see I am lifting one wheel). So the argument of wavetrac being pointless in real world is not true at all...

06-17-2017, 10:33 PM	#67
matreyia Private First Class 36 Rep 137 Posts Drives: 335i Convertible Montego Blue Join Date: Jun 2013 Location: Austin iTrader: (0)	"My race car sure doesn’t have any electronic aids, and would be hopeless with a pure helical diff fitted." ---I been reading this old ass thread and it appears that the complainer here missed the part where the MFactory fella specifically mentions this subject. He says that helicals work in conjunction with traction aids... so to bash them when you have an old car with no traction control makes no sense. Good heavens, some folks just want to argue.
	Appreciate 0 Quote

06-18-2017, 03:32 PM	#68
ken335AZ Yeah it's got a welded diff 39 Rep 56 Posts Drives: '07 e92 FBO, JB4+BEF, E85+Meth Join Date: Oct 2012 Location: Syracuse, NY/Tucson, AZ iTrader: (0)	Just weld the spider gears and never look back.
	Appreciate 0 Quote

06-18-2017, 04:59 PM	#70
ken335AZ Yeah it's got a welded diff 39 Rep 56 Posts Drives: '07 e92 FBO, JB4+BEF, E85+Meth Join Date: Oct 2012 Location: Syracuse, NY/Tucson, AZ iTrader: (0)	I had a buddy of mine who is a phenomenal welder do mine a week ago. I've daily'd welded on a couple other vehicles before and I just wanted something for at least a hint of traction until I pull the trigger on an lsd. He has done dozens of other rear ends on high horsepower GMs and Fords, he's one out maybe a few people in AZ I would trust to do the job right. Only downside is the little bit of tire squeal pulling into and out of a parking spot or doing a u-turn & 3-point.
	Appreciate 0 Quote

06-19-2017, 04:14 PM	#71
berns Captain 1560 Rep 672 Posts Drives: '07 E90 335i Join Date: Feb 2013 Location: Los Angeles, CA iTrader: (1)	My Wavetrac has been doing its job well for 25,000 miles. 4 track days, plenty of hard driving, a few launches, some donuts and a handful of drifts. Absolutely one of my favorite modifications. Sure you can't go wrong with either. __________________ BRG M3 Clubsport Build 600hp 1M-clone Time Attack build
	Appreciate 1 lightmanek116.50 Quote

10-18-2021, 01:26 PM	#72
X2Board Lieutenant Colonel 444 Rep 1,643 Posts Drives: I'm back, bitches! '13 E92 ZCP Join Date: Feb 2011 Location: Wake Forest, NC iTrader: (1)	So, which LSD did the OP go with? __________________ 2013 Jerez Black/Black E92 ZCP DCT - I'm back!! 2014 Guards Red 991 C2S 7MT - Gone. 2015 YMB/SS F80 M3 6sp - Gone 2011 Sapphire Black/Black E70 X5 M - Gone. 2010 Jerez Black/Black E90 M3 DCT -Gone-
	Appreciate 0 Quote

11-29-2021, 01:36 PM	#73
HP Autosport Supreme Allied Commander 3815 Rep 54,319 Posts Drives: F80 M3 Join Date: Mar 2007 Location: Santa Barbara, AP, Brembo, GIAC, Koni, Ohlins, Performance Friction, www.hpautosport.com iTrader: (36)	Wavetrac limited slip review. Check out his video, like and subscribe!
	Appreciate 0 Quote

05-30-2022, 07:56 PM	#74
thormessiah Lieutenant 165 Rep 428 Posts Drives: 2008 BMW 335i Coupe Join Date: Oct 2017 Location: Texas iTrader: (0) Garage List 2008 BMW 335i [0.00]	I went with M-factory. Very excited to see dragy numbers of the line now 😁
	Appreciate 0 Quote

01-24-2024, 04:45 AM	#75
lforter Private 20 Rep 55 Posts Drives: 135i? Join Date: May 2021 Location: CA iTrader: (0)	While im in a search for an LSD, I must say that where I live that everything is very bumpy and full of hills, the track AND streets paired with the suspension dimensions of an 135i I am in constantly lifting up 1 wheel (I have videos of tracking my 135i where you can clearly see I am lifting one wheel). So the argument of wavetrac being pointless in real world is not true at all...
	Appreciate 0 Quote