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Slight clunk with Wavtrac in reverse only
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03-06-2013, 03:46 PM | #1 |
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Slight clunk with Wavtrac in reverse only
Had a shop install the wavetrac into the pumpkin (I brought pumpkin into them), I installed everything else. When shifting, going WOT no noise at all but I hear a clunk (Not very loud) when going from park to reverse. If the back-lash was not set correctly would this cause this issue?..when car is in nuetral there is a bit of play in the drive shaft before it engages and I was a bit concerned. The only reason I had a shop install the wavetrac was to set the back-lash LOL!! The Insert nut is tighten, all h;laf-shaft bolts are tight...EVERYTHING is torqued to spec.
How much play should be in the driveshaft before it engages (half shafts move)?? Is there a way to test this? There looks to be maybe 3-4MM of play give or take a 1MM LOL!
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JB4 G5, Stage 3 LPFP, Stage 2 MOTIV PI, VM 6466 ST, Custom OCC W/ SS lines, ER FMIC, ER CP W/HKS BOV, M3 control arms, M3 guide rods, M3 upper links, M3 front & rear sway-bars, HPA rear toe arms, Wavetrac LSD, HPF Gen 2, DEFIV kit, KW clubsport, Delrin solid SF bushings, stoptech rotors, Rogue Tranny Mounts, 1M bumper, M3 CF hood, M3 fenders, M3 OEM sideskirts, Mtech rear bumper, CSL trunk, MORR VS8.2 rims 245/295
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03-06-2013, 04:01 PM | #3 |
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I was hoping for your response, I was about to pm you lol!
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JB4 G5, Stage 3 LPFP, Stage 2 MOTIV PI, VM 6466 ST, Custom OCC W/ SS lines, ER FMIC, ER CP W/HKS BOV, M3 control arms, M3 guide rods, M3 upper links, M3 front & rear sway-bars, HPA rear toe arms, Wavetrac LSD, HPF Gen 2, DEFIV kit, KW clubsport, Delrin solid SF bushings, stoptech rotors, Rogue Tranny Mounts, 1M bumper, M3 CF hood, M3 fenders, M3 OEM sideskirts, Mtech rear bumper, CSL trunk, MORR VS8.2 rims 245/295
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03-06-2013, 04:42 PM | #5 |
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JB4 G5, Stage 3 LPFP, Stage 2 MOTIV PI, VM 6466 ST, Custom OCC W/ SS lines, ER FMIC, ER CP W/HKS BOV, M3 control arms, M3 guide rods, M3 upper links, M3 front & rear sway-bars, HPA rear toe arms, Wavetrac LSD, HPF Gen 2, DEFIV kit, KW clubsport, Delrin solid SF bushings, stoptech rotors, Rogue Tranny Mounts, 1M bumper, M3 CF hood, M3 fenders, M3 OEM sideskirts, Mtech rear bumper, CSL trunk, MORR VS8.2 rims 245/295
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03-06-2013, 05:36 PM | #7 |
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My quaife does it going across the gate from reverse to 1st. Or neutral to first if I've recently come to a stop and the idler shaft is still in action. Kevin Bird thought aloud maybe (unsure) momentum of the idler shaft being carried into firmer bushing and heavier diff. Offered to try thicker gearbox oil to slow the shaft but I declined.
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03-06-2013, 05:40 PM | #8 |
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Yeah I think it has been confirmed that aftermarket LSDs clunk. I've had mine for 25k and its done it the entire time, but slowly gotten better. Nothing to be worried about.
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I have exhaust and an intake... |
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03-06-2013, 08:21 PM | #9 |
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glad to know, thanks for the confirmation
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JB4 G5, Stage 3 LPFP, Stage 2 MOTIV PI, VM 6466 ST, Custom OCC W/ SS lines, ER FMIC, ER CP W/HKS BOV, M3 control arms, M3 guide rods, M3 upper links, M3 front & rear sway-bars, HPA rear toe arms, Wavetrac LSD, HPF Gen 2, DEFIV kit, KW clubsport, Delrin solid SF bushings, stoptech rotors, Rogue Tranny Mounts, 1M bumper, M3 CF hood, M3 fenders, M3 OEM sideskirts, Mtech rear bumper, CSL trunk, MORR VS8.2 rims 245/295
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03-06-2013, 08:31 PM | #10 |
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Yep, OS Giken here and mine does it. It definitely got quieter over time. I have an auto. I'm a believer it's more noticeable in automatics. When you shift into reverse on an automatic, there's "load" there that isn't present when you shift into reverse, before you let out the clutch on a manual. That makes it more noticeable I think in autos.
It's not a significant clunk, but I think it's more noticeable before the diff is broken in. |
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03-06-2013, 08:33 PM | #11 | |
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I have zero noise in forward gears as well with my Wavetrac
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2007 E92 6MT SGM: MusicarNW Level 2, Procede Rev 2.5, FFTEC/Vishnu LPFP with Flexfuel Sensor and Flash, M3 Offset V701's, WaveTrac LSD, Michelin PSS, Downpipes, M3 Control Arms, TCKline D/A Suspension, LCI Tail lights, Lux AE's, ER Charge Pipe, DCI's, Mtech Front and Rear, M3 Sideskirts, HPF Stage 1 Clutch
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03-06-2013, 08:58 PM | #12 |
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exactly what I am experiencing to a tee!
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JB4 G5, Stage 3 LPFP, Stage 2 MOTIV PI, VM 6466 ST, Custom OCC W/ SS lines, ER FMIC, ER CP W/HKS BOV, M3 control arms, M3 guide rods, M3 upper links, M3 front & rear sway-bars, HPA rear toe arms, Wavetrac LSD, HPF Gen 2, DEFIV kit, KW clubsport, Delrin solid SF bushings, stoptech rotors, Rogue Tranny Mounts, 1M bumper, M3 CF hood, M3 fenders, M3 OEM sideskirts, Mtech rear bumper, CSL trunk, MORR VS8.2 rims 245/295
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03-06-2013, 10:52 PM | #13 |
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So what do you think of the wavetrac, did it transform your car?
I have a new wavetrac sitting in the box, just figuired whilst i have evrything pulled apart i might as well drop in new m3 subframe bushes oh and some sways and coilovers and now im thinking of doing a complete m3 rear end swap http://www.1addicts.com/forums/showt...1#post13596321 |
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03-06-2013, 11:44 PM | #14 | |
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I replace the following with wavetrac Powerflex subframe bushings DEFIV differential lock down unit Rogue engineering upgrade tranny mounts
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JB4 G5, Stage 3 LPFP, Stage 2 MOTIV PI, VM 6466 ST, Custom OCC W/ SS lines, ER FMIC, ER CP W/HKS BOV, M3 control arms, M3 guide rods, M3 upper links, M3 front & rear sway-bars, HPA rear toe arms, Wavetrac LSD, HPF Gen 2, DEFIV kit, KW clubsport, Delrin solid SF bushings, stoptech rotors, Rogue Tranny Mounts, 1M bumper, M3 CF hood, M3 fenders, M3 OEM sideskirts, Mtech rear bumper, CSL trunk, MORR VS8.2 rims 245/295
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03-07-2013, 12:59 AM | #15 | |
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That Lockdown kit is a night and day difference. I am still on stock subframe mounts and tranny mounts though.
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2007 E92 6MT SGM: MusicarNW Level 2, Procede Rev 2.5, FFTEC/Vishnu LPFP with Flexfuel Sensor and Flash, M3 Offset V701's, WaveTrac LSD, Michelin PSS, Downpipes, M3 Control Arms, TCKline D/A Suspension, LCI Tail lights, Lux AE's, ER Charge Pipe, DCI's, Mtech Front and Rear, M3 Sideskirts, HPF Stage 1 Clutch
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03-07-2013, 01:00 AM | #16 | |
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2007 E92 6MT SGM: MusicarNW Level 2, Procede Rev 2.5, FFTEC/Vishnu LPFP with Flexfuel Sensor and Flash, M3 Offset V701's, WaveTrac LSD, Michelin PSS, Downpipes, M3 Control Arms, TCKline D/A Suspension, LCI Tail lights, Lux AE's, ER Charge Pipe, DCI's, Mtech Front and Rear, M3 Sideskirts, HPF Stage 1 Clutch
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03-07-2013, 01:05 AM | #17 |
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yes, I used to log st 40 and I would literally just roast the tires, then hit 4 th and still roast and wheel hop....surprised I have 1/2 shafts lol!! Now it spins slightly nd then just hooks, noticed it the most on the shift....you loose a ton of power on the shift without a LSD....you will be surprised!
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JB4 G5, Stage 3 LPFP, Stage 2 MOTIV PI, VM 6466 ST, Custom OCC W/ SS lines, ER FMIC, ER CP W/HKS BOV, M3 control arms, M3 guide rods, M3 upper links, M3 front & rear sway-bars, HPA rear toe arms, Wavetrac LSD, HPF Gen 2, DEFIV kit, KW clubsport, Delrin solid SF bushings, stoptech rotors, Rogue Tranny Mounts, 1M bumper, M3 CF hood, M3 fenders, M3 OEM sideskirts, Mtech rear bumper, CSL trunk, MORR VS8.2 rims 245/295
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03-07-2013, 02:55 AM | #18 | |
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03-07-2013, 03:07 AM | #19 |
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cold weather I believe....in warm weather it wasn't as bad but I had less mods. I am AT so no clutch
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JB4 G5, Stage 3 LPFP, Stage 2 MOTIV PI, VM 6466 ST, Custom OCC W/ SS lines, ER FMIC, ER CP W/HKS BOV, M3 control arms, M3 guide rods, M3 upper links, M3 front & rear sway-bars, HPA rear toe arms, Wavetrac LSD, HPF Gen 2, DEFIV kit, KW clubsport, Delrin solid SF bushings, stoptech rotors, Rogue Tranny Mounts, 1M bumper, M3 CF hood, M3 fenders, M3 OEM sideskirts, Mtech rear bumper, CSL trunk, MORR VS8.2 rims 245/295
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03-07-2013, 03:09 AM | #20 |
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03-07-2013, 09:41 AM | #21 | |
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03-07-2013, 12:44 PM | #22 |
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My wavetrac does the same. And it was installed in the pumpkin by them. I did the core exchange. It's not that noticeable though, I forgot about it until now lol
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