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///M roadster suspension geometry options
- RedUn
- Senior Member
- Posts: 1108
- Joined: Sat Jun 16, 2012 7:33 pm
- Location: Hertfordshire
///M roadster suspension geometry options
Off the top of my head... You don't need the lollipops, I'm not sure which way they adjust the caster but I don't feel like I've got too much or too little caster?
Ref the camber pins, you need them on oem springs to get the csl camber, with lowering springs you might be quite close without removing them. Ref the cambers between the two, I seem to remember the csl running 0.5 degree more than a standard z4m. Not sure about the specs it's more the nominals your after, I'm sure they are 1dev and 1.5deg. In any case 1.5 on the front is quite nice for a fast road setup.
Ref the camber pins, you need them on oem springs to get the csl camber, with lowering springs you might be quite close without removing them. Ref the cambers between the two, I seem to remember the csl running 0.5 degree more than a standard z4m. Not sure about the specs it's more the nominals your after, I'm sure they are 1dev and 1.5deg. In any case 1.5 on the front is quite nice for a fast road setup.
IMOLA Z4///MR
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- Member
- Posts: 65
- Joined: Thu Jun 16, 2011 9:04 am
///M roadster suspension geometry options
I'm thinking of getting a geo setup on my stock car. Will a CSL geo setup work, or should I just leave it as stock. I'm a keen driver, so anything that enhances the cars handling and performance when im already getting something done is preferred.
- RedUn
- Senior Member
- Posts: 1108
- Joined: Sat Jun 16, 2012 7:33 pm
- Location: Hertfordshire
///M roadster suspension geometry options
Go for it, I ran csl geo with the oem strut brace for quite a whole and it was a nice improvement over the original setup
IMOLA Z4///MR
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- Posts: 65
- Joined: Thu Jun 16, 2011 9:04 am
- RedUn
- Senior Member
- Posts: 1108
- Joined: Sat Jun 16, 2012 7:33 pm
- Location: Hertfordshire
///M roadster suspension geometry options
No problem at all
I do love imola, it's a shame it appears to have disappeared from the new M cars and replaced with that dodgy red colour
I do love imola, it's a shame it appears to have disappeared from the new M cars and replaced with that dodgy red colour
IMOLA Z4///MR
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- Member
- Posts: 565
- Joined: Sat Aug 08, 2015 9:36 pm
- Location: West Sussex
///M roadster suspension geometry options
No. I use powerflex lollipops on mine with the correct caster for the M. The M caster is better than the M3/CSL and gives sharper turn in. In fact alot of e46 owners change to the bushes from the Z4M. If yours have over 60k on them replacing them would probably be beneficial.
No. I have removed mine but that was to fit the strut brace. My camber wasn't moved from the stock alignment position.
Makes it tighter, more responsive, little more tail happy but very controllable.
I like it!!
///M|Silver Grey|Black Leather|BT|Nav|DSP|Heated Seats|PDC|Stubby|Turner Limiters|Turner Rear Top Mounts|Bilstein B12|Powerflex ARB Bushes|Powerflex Lollipops|M-Track|
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- Newbie
- Posts: 41
- Joined: Sat Aug 20, 2016 9:26 am
- Location: Durham
///M roadster suspension geometry options
Hi Steve,
Very useful info.
Having suspenion/wheel alignment set up this afternoon. I have the Z4 strut brace so camber pins didn't have to come out.
Will see what she's like on Sunday.
Charlie B
Very useful info.
Having suspenion/wheel alignment set up this afternoon. I have the Z4 strut brace so camber pins didn't have to come out.
Will see what she's like on Sunday.
Charlie B
///M R sapphire black two tone at present soon to be all black, Bilstein B6 + Eibach springs OEM strut brace cruise control OEM stubby Hayward&Scott exhausts
Previous
E61 550i M sport
E39 M5 x 2
Various 3 and 5 series x 12
Previous
E61 550i M sport
E39 M5 x 2
Various 3 and 5 series x 12
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- Member
- Posts: 565
- Joined: Sat Aug 08, 2015 9:36 pm
- Location: West Sussex
///M roadster suspension geometry options
I highly recommend enabling M-TRAC if you've not already!!
///M|Silver Grey|Black Leather|BT|Nav|DSP|Heated Seats|PDC|Stubby|Turner Limiters|Turner Rear Top Mounts|Bilstein B12|Powerflex ARB Bushes|Powerflex Lollipops|M-Track|
SOLD
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///M roadster suspension geometry options
-
- Newbie
- Posts: 41
- Joined: Sat Aug 20, 2016 9:26 am
- Location: Durham
///M roadster suspension geometry options
On Friday I took the car to AK Automotive in Rowlands Gill for the wheel alignment check.
I was asked to have the fuel tank half full and 89kg of weight was added in drivers side before readings were taken.
Fellow forum member Paul (paulgs1000) met me there as he had his previous Z sorted there.
Car is on ramps set up with Hunter alignment measuring heads attached. All settings were out, some more than others so the front camber and toe in were adjusted, same with the rear. Luckily the camber pins didn't have to come out. Final readings taken, the set up is based on what fellow forum members recommended plus input from Dan (the technician) having discussed what I was looking for in the handling. We decided to change the tyre pressures, reducing the fronts by 0.1 to 2.0 bar and the rears by 0.2 also to 2.0 bar to see if that made any difference to the cars' tendancy to bounce over bumps.
On Sunday morning we had beautiful weather and I took the car out over a one of the RoSPA routes in the Wear valley to see how she handled.
The car now turns in beautifully, is much more predictable in handling and the bounce is all but gone. The car now inspires real confidence when driven.
The plan now is to play around with tyre pressures to get the best out of the Contact Sport 3's and then change them for Michelin PSS's.
I was asked to have the fuel tank half full and 89kg of weight was added in drivers side before readings were taken.
Fellow forum member Paul (paulgs1000) met me there as he had his previous Z sorted there.
Car is on ramps set up with Hunter alignment measuring heads attached. All settings were out, some more than others so the front camber and toe in were adjusted, same with the rear. Luckily the camber pins didn't have to come out. Final readings taken, the set up is based on what fellow forum members recommended plus input from Dan (the technician) having discussed what I was looking for in the handling. We decided to change the tyre pressures, reducing the fronts by 0.1 to 2.0 bar and the rears by 0.2 also to 2.0 bar to see if that made any difference to the cars' tendancy to bounce over bumps.
On Sunday morning we had beautiful weather and I took the car out over a one of the RoSPA routes in the Wear valley to see how she handled.
The car now turns in beautifully, is much more predictable in handling and the bounce is all but gone. The car now inspires real confidence when driven.
The plan now is to play around with tyre pressures to get the best out of the Contact Sport 3's and then change them for Michelin PSS's.
///M R sapphire black two tone at present soon to be all black, Bilstein B6 + Eibach springs OEM strut brace cruise control OEM stubby Hayward&Scott exhausts
Previous
E61 550i M sport
E39 M5 x 2
Various 3 and 5 series x 12
Previous
E61 550i M sport
E39 M5 x 2
Various 3 and 5 series x 12
- Steve84N
- Senior Member
- Posts: 1828
- Joined: Tue Jul 21, 2015 1:00 pm
///M roadster suspension geometry options
Looks like a good job but almost 2 degrees of rear camber is more than I would choose.
C63 AMG Estate 6208cc