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Wavetrac vs 1-way vs 1.5 way front diff experiences?

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Old Aug 29, 2019 | 09:53 AM
  #106  
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The only experience and can add to that is the Mfactory diff came setup in 1.5way and all clutches alternating for maximum engagement. I had to disassemble and set cam to 1way and 60% on the plate stack.
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Old Aug 29, 2019 | 09:56 AM
  #107  
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TF Works can get ATS diffs. I meant to talk with ATS at PRI last December but didn't have time, maybe I'll throw it on the list for this year.
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Old Aug 29, 2019 | 09:58 AM
  #108  
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Originally Posted by alpinaturbo
TRE supports Andy, so Jon got him the ATS and installed it.

I always wonder why these diffs supposedly "need setup", i.e. ATS, Cusco, should set them up from new for close to optimal application for typical Evo racer obviously.

The way I read some "reports" such as even MotoIQ articles, and feedback by TRE, or by some English drivetrain spacialists, there is always talk about setting up, how they come "out of the box" "requiring setup", or they suck... not sure what to say, but...
I imagine Cusco, ATS, and OSG, know more about diffs than any shop will ever know: its hard to imagine they are so competent in design, manufacturing, figuring out what should you have, and creating the product for the purpose - that has proven to work,
And than supplying you new product totally mis-matched in configuration.

Just venting an observation.
yea i'm not totally sure - jon@tre has my rear diff right now, "fixing" my osg 1.5 rear. struggling of course to get a hold of him to talk about sending in my t-case and the front diff, but not wanting to go wavetrack here. looks like the ats is about 6-700 more than the cusco as far as i can tell, and marshall has blown up 2 of the ats's. cusco will be better for longetivity for sure, but obviously his experiences don't mirror andy's.
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Old Aug 29, 2019 | 10:02 AM
  #109  
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So what is Jon actually doing with the OSG diff?
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Old Aug 29, 2019 | 10:04 AM
  #110  
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Originally Posted by Dallas J
So what is Jon actually doing with the OSG diff?
i couldn't get him to cough up the details. he basically just said that girl racer/model with the ls-swapped 350z used to have problems with her osg... and no longer does
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Old Aug 29, 2019 | 10:20 AM
  #111  
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Ah. Secret sauce. Even in this day and age. Fun.
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Old Aug 29, 2019 | 10:50 AM
  #112  
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Non ACD ATS metal diff PN: RMFC8772T ($1,900.29)
Non ACD ATS carbon diff PN: CMFC8772T ($2,313.57)
ACD ATS metal diff PN: RMFC8752T ($2,063.43)
ACD ATS carbon diff PN: CMFC8752T ($2,509.29)

Those are all 1 ways. I'd be curious to hear about ATS failures people have had. There would have to be a really good argument for me to drop $2k to switch over from my Wavetrac which I have no complaints with.
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Old Aug 29, 2019 | 10:52 AM
  #113  
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Yeah, sounds like it. I really like what Jon does on stuff but I dont play secret sauce on my car. I need to know what everything does and how it effects the rest of the system to know when its not right, think about how to continually improve, and reduce the unknowns fighting me. Id guess OSG is probably the winning-est aftermarket diff in AX right now considering how many ST guys immediately swap to it.

I still run the TRE Maxlock which is pretty old now, but high locking isn't the worst thing in my case since I set the car up to purposely lift the inside rear.
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Old Aug 29, 2019 | 10:54 AM
  #114  
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Originally Posted by kyoo
i couldn't get him to cough up the details. he basically just said that girl racer/model with the ls-swapped 350z used to have problems with her osg... and no longer does
Ah ya Savanna's car, she was going on and on about that. About as much of a breakthrough for her as ACD tuning was for us.
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Old Aug 29, 2019 | 10:54 AM
  #115  
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Originally Posted by ayoustin
Non ACD ATS metal diff PN: RMFC8772T ($1,900.29)
Non ACD ATS carbon diff PN: CMFC8772T ($2,313.57)
ACD ATS metal diff PN: RMFC8752T ($2,063.43)
ACD ATS carbon diff PN: CMFC8752T ($2,509.29)

Those are all 1 ways. I'd be curious to hear about ATS failures people have had. There would have to be a really good argument for me to drop $2k to switch over from my Wavetrac which I have no complaints with.
A certain "professional" team may be switching to Cusco from a torsen type front. In my discussions, they are having huge wheel spin numbers on the inside front with the torsen and hoping to get more lockup on exit. Theyre also looking at adding the Quaife center to assist the ACD. It was actually the first I've heard of being able to use both so that's interesting to me.
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Old Aug 29, 2019 | 11:04 AM
  #116  
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Originally Posted by Dallas J
A certain "professional" team may be switching to Cusco from a torsen type front. In my discussions, they are having huge wheel spin numbers on the inside front with the torsen and hoping to get more lockup on exit. Theyre also looking at adding the Quaife center to assist the ACD. It was actually the first I've heard of being able to use both so that's interesting to me.
Hmm, I might need to go talk to this "professional" team then

I'm also not making boat loads of power so I don't see myself having traction issues on the level they do, but it's for sure still worth looking into.

Last edited by Ayoustin; Aug 29, 2019 at 01:16 PM.
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Old Aug 29, 2019 | 11:09 AM
  #117  
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Originally Posted by Balrok
Ah ya Savanna's car, she was going on and on about that. About as much of a breakthrough for her as ACD tuning was for us.
what was? The OSG, or TRE fixing the OSG?

Originally Posted by Dallas J
A certain "professional" team may be switching to Cusco from a torsen type front. In my discussions, they are having huge wheel spin numbers on the inside front with the torsen and hoping to get more lockup on exit. Theyre also looking at adding the Quaife center to assist the ACD. It was actually the first I've heard of being able to use both so that's interesting to me.
interesting. honestly no issues putting power down with the helical, just looking to do it "better"
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Old Aug 29, 2019 | 11:10 AM
  #118  
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There's only be one reason for me to change from a Wavetrac and that's to fix an issue which I'm still not even sure it related to the front diff.

Originally Posted by kyoo
what was? The OSG, or TRE fixing the OSG?
TRE fixing her OSG. Jon has some involvement in most of the successful TA builds out there.
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Old Aug 29, 2019 | 11:16 AM
  #119  
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Originally Posted by ayoustin
There's only be one reason for me to change from a Wavetrac and that's to fix an issue which I'm still not even sure it related to the front diff.



TRE fixing her OSG. Jon has some involvement in most of the successful TA builds out there.
i guess i don't understand like what could be so different. i know what the problem with mine is. its not locking enough on power for me. what really special is there beyond that
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Old Aug 29, 2019 | 12:03 PM
  #120  
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Well very few people actually know how to set up a diff for performance so when you have a pretty light 500+whp RWD car that can't put power down because the diff is setup wrong it's pretty enlightening to have that corrected.
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