Z1 subframe collar bushings
#61
Na, I can't take a vid of the diff at any speed. Unfortunately the only way I'll know if it's all good is if it's still there 1 week, 1 month, 1 year. etc. later. I never felt nor heard anything when it popped. No change before or after the bushing gave up so I don't suspect I'll feel a difference now.
Here it is with the urethane removed from the diff bolt area. Ugly + a hole
Regarding appearance, if one decided to pour it all the way to the face of the opening on the subframe for the bushing as I did, support it prior to pouring with shims or whatever you have but instead of tape, use something consistent and once it's set up enough and you're able to remove the support & tape, pour the missing bit right up top. It should look real perty, nice and smooth like.
Here it is with the urethane removed from the diff bolt area. Ugly + a hole
Regarding appearance, if one decided to pour it all the way to the face of the opening on the subframe for the bushing as I did, support it prior to pouring with shims or whatever you have but instead of tape, use something consistent and once it's set up enough and you're able to remove the support & tape, pour the missing bit right up top. It should look real perty, nice and smooth like.
Last edited by onevq35de; 09-05-2018 at 06:28 AM.
#63
#64
My symptoms were a clunk when letting out the clutch, significant jerking coming on/off throttle even cruising in 6th gear, and general feeling of drive train sloppiness (delay before accelerating while drivetrain flexes) - but my engine mounts were also trashed at the time as well as another unsolved problem causing some drivetrain slop on/off throttle.
The poly bushing gave me better clutch feel (esp. during hard launches) and reduced the drivetrain slop my car has been cursed with.
You said you had an AWD? That bushing is under less stress in that application which might be why it wasn't noticeable to you.
That is real ugly but looks sturdy. I'd still love to see someone with a really bad bushing/RWD do a before/after video of this fix.
The poly bushing gave me better clutch feel (esp. during hard launches) and reduced the drivetrain slop my car has been cursed with.
You said you had an AWD? That bushing is under less stress in that application which might be why it wasn't noticeable to you.
That is real ugly but looks sturdy. I'd still love to see someone with a really bad bushing/RWD do a before/after video of this fix.
Last edited by cswlightning; 09-05-2018 at 12:25 PM.
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onevq35de (09-06-2018)
#66
Ya'll should have made another sticky thread for that DIY urethane fill, this thread is supposed to highlight and feedback the z1 subframe inserts to help others decide if the product is worth for them.
I honestly haven't got a chance to install mine due to other priorities but will do a feedback once I get to install them, probably until after track day on October.
I honestly haven't got a chance to install mine due to other priorities but will do a feedback once I get to install them, probably until after track day on October.
Last edited by deeliciousqueen; 09-06-2018 at 12:03 AM.
#68
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cswlightning (09-06-2018)
#72
#74
I finally got a chance to installing this on my G today, it took me an hour with the car on a lift that I rented for $50 + chipotle lunch with a good friend of mine that owns the shop. Install is pretty much spot on as you see from youtube videos. I am starting to get annoyed with my RAS as I feel like it is always in the way whenever I am working around the subframe suspension components, I don't really feel any benefits of having that thing.
First initial impression - WHEEL HOP GONE!!! this is combined with kdt911 whiteline diff bushings that I had installed last December. I am excited to see how it feels around the track when I go back January. This mod is worth it for me and meets my expectation, thanks Z1!
First initial impression - WHEEL HOP GONE!!! this is combined with kdt911 whiteline diff bushings that I had installed last December. I am excited to see how it feels around the track when I go back January. This mod is worth it for me and meets my expectation, thanks Z1!
#75