The saga continues...shuddering/vibration

Mudgey · Post by **Mudgey** » Fri Nov 22, 2013 11:09 am

Are you sure its not the engine mounts? My car vibrates more at low RPM as the frequency of the vibrations was lower, once the engine revs higher the frequency is higher and things that rattled etc went quiet. I have changed two of my mounts back to OEM and the last one will be changed soon. Hopefully then it will be vibration free!

Post by **Lude-dude** » Fri Nov 22, 2013 11:28 am

was gonna say this would sort of be normal with poly engine mounts

Post by **Merlin** » Fri Nov 22, 2013 11:29 am

Cutz wrote:it only seems to be with the car under load and in gear mate.

with it stationary and revving there's no issue.

If it were engine mounts would it not vibrate/shudder the exact same out of gear and stationary?

Post by **Lude-dude** » Fri Nov 22, 2013 11:33 am

didn't see that bit yeah probably not mounts then

Cutz · Post by **Cutz** » Fri Nov 22, 2013 11:36 am

Yeah definitely not the actual poly engine mounts.

When I got them they were 94 hardness which was friggin ridiculous but after casting my own 60 hardness poly mounts the engine settled lovely, I get a nice bit of engine feedback.

But this vibration is different...

Post by **Lude-dude** » Fri Nov 22, 2013 11:45 am

could be driveshaft's issue like merlin said then, these are custom ones for the swap?

not running silly offset/camber wheels are you?

Post by **Merlin** » Fri Nov 22, 2013 11:52 am

All your ball joints and bits ok? Does it pull to one side at all? Has the car recently had a wheel alignment?

Cutz · Post by **Cutz** » Fri Nov 22, 2013 12:25 pm

Doesn't pull at all and im running a pukka alignment setup, had it done by northampton motorsport who are just the best round here.

Everything poly bushed, everything brand new, no silly camber, all round alignment adjusters plus I fitted a set of ohlins coilovers on Wednesday which are awesome

The drive shafts are yonaka swap shafts I got from the states but now im doubting their quality....

Post by **Lude-dude** » Fri Nov 22, 2013 12:29 pm

I run yonaka TPS with no problems, but driveshaft is a big part

Cutz · Post by **Cutz** » Fri Nov 22, 2013 1:04 pm

Hmm ill investigate further, nice one mate