Wavetrac Front LSD diff upgrade, is it worth it?
#17
Evolved Member
iTrader: (6)
I purchased a second t-case out of an EVO 9 with the intention of swapping my open front diff once I blew it up drag racing. Funny thing is... I never did lol. I used to launch with the 2 step at 6200rpm. Tons of 1/8th mile runs. Never had the car over 450whp or 400ftlbs of torque though.
#18
Evolved Member
iTrader: (69)
Check out this vid:
Quote from the Video Maker:
I always thought that it would lock and both wheels would spin with equal amount of torque when under conditions of one wheel traction and the other zero traction. Either there is something wrong with his Wavetrac or we now know it doesnt lock or come any where near equal amount of torque when one wheel has traction and the other has zero traction.
Quote from the Video Maker:
Don't misunderstand the wavetrac for a locking differential. I performed the same exact test on this same patch of ice with my F150 with clutch-style LSD and it did the EXACT same thing. Allegedly, a typical helical differential like a Quaife or MFactory would not have moved forward at all. Additionally, there is a slight incline to my driveway here, the test is done with the car trying to move forward up the slope on the ice.
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Flyhigh (Mar 24, 2019)
#19
Evolving Member
iTrader: (1)
Couldn't feel a difference on the street, but at the autocross it felt great. There is this smoothness about the mid corner and corner exit now. Even if I initiate a jerky transition the car just progressively settles into the direction I'm pointed at. It's sort of a gliding feeling, as if you have more slip angle to work with.
No improvement with corner entry understeer though, that part is up to you.
No improvement with corner entry understeer though, that part is up to you.
#20
EvoM Guru
iTrader: (1)
Check out this vid: https://www.youtube.com/watch?v=H3FTG0RVBJU
Quote from the Video Maker:
I always thought that it would lock and both wheels would spin with equal amount of torque when under conditions of one wheel traction and the other zero traction. Either there is something wrong with his Wavetrac or we now know it doesnt lock or come any where near equal amount of torque when one wheel has traction and the other has zero traction.
Quote from the Video Maker:
I always thought that it would lock and both wheels would spin with equal amount of torque when under conditions of one wheel traction and the other zero traction. Either there is something wrong with his Wavetrac or we now know it doesnt lock or come any where near equal amount of torque when one wheel has traction and the other has zero traction.
http://www.wavetrac.net/technical.htm
#21
EvoM Guru
iTrader: (50)
Probably something wrong with that guys diff. Pick the the "how it's different" link at the top of the page:
http://www.wavetrac.net/technical.htm
http://www.wavetrac.net/technical.htm
#22
Evolved Member
iTrader: (19)
This. If you need a new front diff then the wavetrac is worth considering. But if your stock helical diff is not broke, spend your money on something that will have a bigger impact on handling. Like a TRE max lock (which will reduce understeer), or a nice set of coilovers.
#23
EvoM Guru
iTrader: (50)
This. If you need a new front diff then the wavetrac is worth considering. But if your stock helical diff is not broke, spend your money on something that will have a bigger impact on handling. Like a TRE max lock (which will reduce understeer), or a nice set of coilovers.
#24
EvoM Guru
iTrader: (1)
I'm becoming somewhat fascinated with the general strong interest in increasing the rear diff coupling. It feels to me that balance would be better addressed by first going with coilovers and alignment. Logical next step would be upgrading front and rear diffs simultaneously to maintain balance. But this is from a cornering perspective, and I think the OP was looking at front diff options from a drag racing perspective.
#25
Evolved Member
iTrader: (19)
I have personally used a TRE max lock, and while I found it a bit noisy, it works. You can feel it working. The car would rotate MUCH better on power. I would even go so far as to say you could induce oversteer if you wanted.
I agree with you on balance, but I have not found a set of coilovers or alignment specs that will eliminate the Evos tendency to understeer.
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