alum 1 pc driveshaft woes... is this sound normal??? - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

tastyratz · 11-02-2005, 12:55 PM

so I have a 1pc driveshaft I purchased from luisgonz and put in my car. Now my car has a problem where it sounds like it almost might even be resonating inside the DS itself at highway speeds and light throttle. around 70-75+ mph and steady hold or slightly decel level throttle my car makes this god aweful sound. almost like people who lick their fingers and run it around a wineglass type sound.

I have an attain 3 inch straight titanium exhaust (n1 style) on my car with a 3 in test pipe and dc sports headers on my NA KA. This is extremely annoyingly awefully loud and this is much louder and noticible over my exhaust!! anyone else out there have one and can comment on this? any other ideas or suggestions to help this short of pulling the thing off?

wootwoot · 11-02-2005, 01:29 PM

Yeah that sounds about right. Mine does it under light throttle or decel from about 2500-2800rpms in any gear. You get use to it?

ranisron · 11-02-2005, 01:59 PM

I read on the news this summer that a DS snapped and fall out of a truck and killed a driver in a nearby car... I hope that won't happen here.

Perhaps call up the vendor and see what's going on? Again, I am speculating here... I doubt this is to be serious issue.

ryan hagen · 11-02-2005, 05:13 PM

if you run a 1 piece you need to run a safty loop around it incase it brakes, most drag race/ and some road race tracks require it. stocker has the bearing carrier that works as it. wonder if you could get some great stuff or something put in the drive sahft to dampen the sound/vibration?

projectRDM · 11-02-2005, 05:52 PM

Mine has done it for years, it's just typical resonance for that type of piece.

Flybert · 11-02-2005, 09:20 PM

My stock driveshaft does that because I have nismo motor mounts and a pucked clutch. Vibrations from the engine get sent down the driveshaft and to the diff. One piece is even worse because there is no rubber bushing at the front of the driveshaft. The japanese driveshaft doesn't have a bushing either and it makes a lot noise as well with my setup. What kind of clutch and motor mounts are you using?

tastyratz · 11-04-2005, 10:58 AM

I have Jordan gladman mounts which are just a big bolt stuck through a block of cheese (eurethane). Also have an rps max clutch (400lb tq capacity, street -sprung- non pucked disk w/2400lb pressure plate) My stock driveshaft didnt do it when I had that in and the harder mounts at all. Im used to it but it doesnt mean I like it. on highway cruising it can get pretty annoying and give you a headache if your cruising @ 80mph.

As far as the safety loop goes The stock carrier bushing bracket can be used as a loop. Just take the top piece and mount it on the bottom. My DS clears it fine and its about 4in OD.

11-02-2005, 12:55 PM	#1
tastyratz Zilvia Addict Join Date: Dec 2003 Location: nh Posts: 995 Trader Rating: (4) Feedback Score: 4 reviews	alum 1 pc driveshaft woes... is this sound normal??? so I have a 1pc driveshaft I purchased from luisgonz and put in my car. Now my car has a problem where it sounds like it almost might even be resonating inside the DS itself at highway speeds and light throttle. around 70-75+ mph and steady hold or slightly decel level throttle my car makes this god aweful sound. almost like people who lick their fingers and run it around a wineglass type sound. I have an attain 3 inch straight titanium exhaust (n1 style) on my car with a 3 in test pipe and dc sports headers on my NA KA. This is extremely annoyingly awefully loud and this is much louder and noticible over my exhaust!! anyone else out there have one and can comment on this? any other ideas or suggestions to help this short of pulling the thing off? __________________

11-02-2005, 01:29 PM	#2
wootwoot Post Whore! Join Date: Jan 2004 Location: sarasota florida biatch Age: 39 Posts: 3,850 Trader Rating: (0) Feedback Score: 0 reviews	Yeah that sounds about right. Mine does it under light throttle or decel from about 2500-2800rpms in any gear. You get use to it? __________________ I'm from Florida so I'm probably a bit more strange than you

11-02-2005, 01:59 PM	#3
ranisron Zilvia Addict Join Date: Aug 2003 Location: Bloomington, IN Age: 43 Posts: 766 Trader Rating: (0) Feedback Score: 0 reviews	I read on the news this summer that a DS snapped and fall out of a truck and killed a driver in a nearby car... I hope that won't happen here. Perhaps call up the vendor and see what's going on? Again, I am speculating here... I doubt this is to be serious issue. __________________ U13 and S13 zilvia members are friendly

11-02-2005, 05:13 PM	#4
ryan hagen Zilvia FREAK! Join Date: Jan 2003 Location: rhinelander wisconsin Age: 42 Posts: 1,465 Trader Rating: (8) Feedback Score: 8 reviews	if you run a 1 piece you need to run a safty loop around it incase it brakes, most drag race/ and some road race tracks require it. stocker has the bearing carrier that works as it. wonder if you could get some great stuff or something put in the drive sahft to dampen the sound/vibration? __________________ 1990 hatch ka24de gt2871r

11-02-2005, 05:52 PM	#5
projectRDM Post Whore! Join Date: Dec 2002 Location: Atlanta Age: 51 Posts: 13,812 Trader Rating: (12) Feedback Score: 12 reviews	Mine has done it for years, it's just typical resonance for that type of piece. __________________ FORMERLY R240NA Learn what's really going on and protect your assets now before they're gone forever: www.paypalsucks.com

11-02-2005, 09:20 PM	#6
Flybert Post Whore! Join Date: Mar 2003 Location: none Posts: 3,862 Trader Rating: (7) Feedback Score: 7 reviews	My stock driveshaft does that because I have nismo motor mounts and a pucked clutch. Vibrations from the engine get sent down the driveshaft and to the diff. One piece is even worse because there is no rubber bushing at the front of the driveshaft. The japanese driveshaft doesn't have a bushing either and it makes a lot noise as well with my setup. What kind of clutch and motor mounts are you using?

11-04-2005, 10:58 AM	#7
tastyratz Zilvia Addict Join Date: Dec 2003 Location: nh Posts: 995 Trader Rating: (4) Feedback Score: 4 reviews	I have Jordan gladman mounts which are just a big bolt stuck through a block of cheese (eurethane). Also have an rps max clutch (400lb tq capacity, street -sprung- non pucked disk w/2400lb pressure plate) My stock driveshaft didnt do it when I had that in and the harder mounts at all. Im used to it but it doesnt mean I like it. on highway cruising it can get pretty annoying and give you a headache if your cruising @ 80mph. As far as the safety loop goes The stock carrier bushing bracket can be used as a loop. Just take the top piece and mount it on the bottom. My DS clears it fine and its about 4in OD. __________________