HarleyVR46
Regular Member
- Joined
- Apr 20, 2020
- Points
- 20
Hi everyone, I’m harley.
I have a manual 2.8 z3 roadster (June 97) which I’m restoring/ upgrading.
It has huge sentimental value as it was my late mother’s, and I may have convinced her to spend the kitchen renovation money on it at the time!
if anyone has a 2.8 and has any links for the following questions (which I’m sure have been asked millions of times) I’d really appreciate it.
1) Bilstein B12 kit. Which is the right code! Even the bilstein website doesn’t ref the 2.8 but the Turner website does. I think I need the 46-189509 kit, but I want to make sure the springs have the right rate for the engine/ chassis mass and the dampers have the correct coefficient.
2) Does anyone have experience in doing the fabled manifold mod from the 325ci ??? I think that reduces restriction and gives a little more performance
3) I've done a lot of the main service jobs such as engine, gearbox and diff oil changes (establishing I don’t have an LSD on mine) and I’m now working on sorting the tramlining and general vagueness of the steering and suspension mainly : https://zroadster.org/articles/bmw-z3-subtly-stiffening-a-z3-by-mike-fishwick.44/
But one concern I have is coming on and off the throttle, as the car goes through the neutral load condition between acceleration and deceleration (vice versa) there’s a nocking which feels like play in the drive line.
Anyone have experience of this, I.e is it likely to be :
Drive shaft wear/ gearbox mounts/ diff mounting/ diff wear/ rear suspension Bush wear or..... god forbid a bit of everything
Any help with any of the above is hugely appreciated
Thanks
Harley
Warwickshire
I have a manual 2.8 z3 roadster (June 97) which I’m restoring/ upgrading.
It has huge sentimental value as it was my late mother’s, and I may have convinced her to spend the kitchen renovation money on it at the time!
if anyone has a 2.8 and has any links for the following questions (which I’m sure have been asked millions of times) I’d really appreciate it.
1) Bilstein B12 kit. Which is the right code! Even the bilstein website doesn’t ref the 2.8 but the Turner website does. I think I need the 46-189509 kit, but I want to make sure the springs have the right rate for the engine/ chassis mass and the dampers have the correct coefficient.
2) Does anyone have experience in doing the fabled manifold mod from the 325ci ??? I think that reduces restriction and gives a little more performance
3) I've done a lot of the main service jobs such as engine, gearbox and diff oil changes (establishing I don’t have an LSD on mine) and I’m now working on sorting the tramlining and general vagueness of the steering and suspension mainly : https://zroadster.org/articles/bmw-z3-subtly-stiffening-a-z3-by-mike-fishwick.44/
But one concern I have is coming on and off the throttle, as the car goes through the neutral load condition between acceleration and deceleration (vice versa) there’s a nocking which feels like play in the drive line.
Anyone have experience of this, I.e is it likely to be :
Drive shaft wear/ gearbox mounts/ diff mounting/ diff wear/ rear suspension Bush wear or..... god forbid a bit of everything
Any help with any of the above is hugely appreciated
Thanks
Harley
Warwickshire
