The car now judders slightly when you come off the power, did not notice at Donnington.
But at say 70 on the throtle its fine only when it decelerate under its own power, ie not using brakes.
Any ideas please.

a sort of vibrating judder, not specifically engine? Could be your diff.

prop bearing?

prop to diff bolts loose

must be something thats underload on power

just done a track day ? rear bush's


accelerating bush's under load
braking, bushes under load
off power, bush's free too wiggle....

could be off mark but that's my guess passenger side.


[Edited on 17/10/05 by Jon Ison]

Thanks guys had a look at transmision, will have a good look tomorrow. Will let you know what i find. Ta

Personally I'd give the car a proper going over - the car would take some right hammer on the track - just make sure everything is as it should be...

I know your set up will be different, but I had the same problem after a track day.

So far traced it down to a sh***ed chain and sprockets. Waiting for new parts to arrive so I can make sure that is what it was