Subject	Thoughts on subframe bushings
Posted by	Red Hawk (CO) on April 02, 2013 at 1:22 PM
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Message	I've been doing alot of reading on changes to the subframe bushings, OEM, Poly, Aluminum. The general consensus is that the Aluminum, and many times the Poly on the subframe is considered fairly harsh in terms of noise and vibration. Is this mainly due to the diff? to me, the suspension should be able to handle all the vibration coming from the road, obviously the front handles it just fine. I would think that the only reason aluminum would increase the harshness is because the bushings between the diff and the subframe are not enough to isolate vibration; so a secondary set from subframe to body is used. But then these can reduce handling... I would think from a performance perspective all aluminum is best, from a handle only perspective, you could probably get away with aluminum subframe and oem diff bushings. Has anyone run with this setup? Im assuming there is more vibration/noise than stock, but is it that noticable? are there certain areas in the RPM band that become ugly? TT BEAST IN PROGRESS!
Follow Ups	Thoughts on subframe bushings - Red Hawk (CO) 13:22:10 04/02/13 If I had it to do over again.... - Madhatter10-6 13:58:17 04/02/13 Yep. (n/m) - TriniTT 14:10:14 04/02/13 Well Im actually planning on buying one - Red Hawk (CO) 14:13:51 04/02/13 That would be the wrong choice. - TriniTT 14:19:20 04/02/13 I'd leave the bushings for the diff OEM (n/m) - Red Hawk (CO) 14:21:45 04/02/13 Then you can just get new diff bushings - OEM ... no? (n/m) - SimaYi 14:53:09 04/02/13 You already have a good subframe though. - TriniTT 14:58:53 04/02/13 Oh, I must have been misinformed - Red Hawk (CO) 16:47:36 04/02/13 You CANT get new OEM subframe bushings anymore - ZXoltan 17:15:02 04/02/13 right, i wanted to stay oem with the diff though. - Red Hawk (CO) 18:29:31 04/02/13 that's only 2 of the 4 rear diff bushings though (n/m) - LJZTT 08:51:40 04/03/13 It's extremely noticeable. - TriniTT 14:18:15 04/02/13 What are your thoughts on full ES poly bushings TriniTT? - Prof.DrunkClutch 14:21:17 04/02/13 They still transfer quite a bit of noise through the chassis - TriniTT 14:53:47 04/02/13 I like my solid bushings. Car is very predictable. BUT... - ZinnZ32 14:30:17 04/02/13 I had read Whiteline was close to Aluminum in terms of noise (n/m) - Red Hawk (CO) 16:48:51 04/02/13 Im already running oem subframe bushings w/spacers its just - Prof.DrunkClutch 16:57:38 04/02/13 Can you elaborate on "switch ALL the bushings to es poly"? - Inzane 17:07:45 04/02/13 I have the black graphite impregnated ones, they're fine... (n/m) - ZinnZ32 17:16:43 04/02/13 Pretty sure the OEM diff bushings are not available. - ZXoltan 17:08:55 04/02/13 When i meant All i just mean the subframe bushings - Prof.DrunkClutch 18:11:44 04/02/13 When i meant All i just mean the subframe bushings - Prof.DrunkClutch 18:41:49 04/02/13 Cool. I'll ck it out. Thanks. (n/m) - ZXoltan 19:28:44 04/02/13 Cool, i'll have to buy some (n/m) - Red Hawk (CO) 19:34:12 04/02/13 Both front and rear or just the fronts? - Broke_as_**** 14:58:12 04/03/13 where did you read that? - aliaZ 21:31:27 04/02/13 My mistake, I was thinking of ES - Red Hawk (CO) 21:50:34 04/02/13 I consider myself one with fairly low tolerance for NVH - LJZTT 08:49:43 04/03/13 Same here - BlackholeZ 03:22:06 04/04/13 just bought a subfram with solid subs and Nismo diffs - wickdGSXR 12:14:57 04/04/13
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