Subject	Driveshaft critical speeds relative to length, OD, material
Posted by	LitlElvis on May 01, 2025 at 11:57 AM
	This message has been viewed 44 times.
In Reply To	Center Support Bearing or Center Support Burden? posted by Polishzx on April 27, 2025 at 05:59 AM
Message	Interesting to see how much changes in length affect the critical speed... same with changes in driveshaft OD. Mark Williams driveshaft tech
Follow Ups	Center Support Bearing or Center Support Burden? - Polishzx 05:59:12 04/27/25 I don't agree with your assumptions and conclusions. - Bernie (NoVA) 12:37:51 04/27/25 Fair enough, tried pretty hard to make the 2pc with CSB work - Polishzx 13:04:14 04/27/25 Also want to clarify that I think this CSB issue is Z32 - Polishzx 14:09:38 04/27/25 Again disagree about it being a Z32 specific issue and that - Bernie (NoVA) 21:36:38 04/27/25 The aftermarket 2pc was from PTI - Powertrain Industries - Polishzx 01:33:29 04/28/25 Strongly agree Bernie … (n/m) - ConVerTT 19:38:27 04/29/25 Well, I have a chassis vibration in the verTT - vorpalZed 12:23:55 04/28/25 Sounds awfully familiar... - Polishzx 14:07:41 04/28/25 I've got a weird vib in my TT vert also. - Doug71zt(CAN) 22:17:18 04/28/25 Are you running BDE motor mounts? - vorpalZed 09:17:45 04/30/25 It had Z1 mounts in it when I bought it, I had BDE - Doug71zt(CAN) 09:36:53 05/01/25 maybe - vorpalZed 15:22:24 05/01/25 CSB no longer available--So what are the options? - ZXoltan 07:21:10 04/29/25 I thought the JXB mount was the answer - Polishzx 08:39:50 04/29/25 Thanks. Pics on the JXB site are interesting. - ZXoltan 13:40:12 04/29/25 Could be trying to illustrate trimming the CSB to use the - Polishzx 15:59:11 04/29/25 I have a few OEM Nissan units left, also of the aftermarket - Bernie (NoVA) 15:40:38 04/30/25 Re: Center Support Bearing or Center Support Burden? - ryzan 07:50:12 04/30/25 I have had a CF on my car for almost 20 years I had 1 issue - Bernie (NoVA) 15:38:17 04/30/25 Driveshaft critical speeds relative to length, OD, material - LitlElvis 11:57:43 05/01/25
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