some pics for your viewing pleasure ;-)

I still did not have a definitive answer if my 19 CSL wheels can fit without spacers with the front AP brake kit CP5575-1010B (Z4M kit with the smaller caliper). I have received a template for the brake system that can be used to verify fitment.

The result; If I look at the template there is space of only 2mm between the front brake caliper and the CSL wheels. I can just fit the metal lid from a can of soda between the caliper and the wheels. That's not a lot of space. Any thoughts?

apbrake2mmi.jpg


apbrake2mmii.jpg


apbrake2mmiii.jpg


On another forum I have found this about the AP template. In real life it should take a little less space then the PDF template.
I downloaded the PDF from AP when I put the sixpots on the M5. Even though the template was spot on for size it still fouled the wheel rim BUT even AP themselves say the PDF are on the pessimistic side.
Click to expand...

The AP dealer said this about fitting the AP brakes at the front only
The front Z4M kit you are referring to does not shift brake balance forward a massive amount. It is primarily designed for more thermal capacity. While the rear kit provides a more perfect dynamic balance, many customers happily run the front-only system. If you find you need more bite from the rear brakes due to driving style, tire choice, damper settings, etc., there are many pad compounds available that will do just that.
Click to expand...
 
Franzino said:
I still did not have a definitive answer if my 19 CSL wheels can fit without spacers with the front AP brake kit CP5575-1010B (Z4M kit with the smaller caliper). I have received a template for the brake system that can be used to verify fitment.

The result; If I look at the template there is space of only 2mm between the front brake caliper and the CSL wheels. I can just fit the metal lid from a can of soda between the caliper and the wheels. That's not a lot of space. Any thoughts?

apbrake2mmi.jpg


apbrake2mmii.jpg


apbrake2mmiii.jpg


On another forum I have found this about the AP template. In real life it should take a little less space then the PDF template.
I downloaded the PDF from AP when I put the sixpots on the M5. Even though the template was spot on for size it still fouled the wheel rim BUT even AP themselves say the PDF are on the pessimistic side.
Click to expand...

The AP dealer said this about fitting the AP brakes at the front only
The front Z4M kit you are referring to does not shift brake balance forward a massive amount. It is primarily designed for more thermal capacity. While the rear kit provides a more perfect dynamic balance, many customers happily run the front-only system. If you find you need more bite from the rear brakes due to driving style, tire choice, damper settings, etc., there are many pad compounds available that will do just that.
Click to expand...
Click to expand...

thats WAY to close imo....... funny how my AP manual says clearance should be double that...... whats going to happen if a stone gets lodged in their, thats a very real possibility........ still needs a slight bit spacing imo..... honestly its just to close for comfort.....

lots of ways of bringing up the balance at the rear, add a nice aggressive rear pad, im glad to have the full kit and the difference is night and day.
i will be using them to stop all 460hp very soon! :-)
 
Beedub said:
thats WAY to close imo....... funny how my AP manual says clearance should be double that...... whats going to happen if a stone gets lodged in their, thats a very real possibility........ still needs a slight bit spacing imo..... honestly its just to close for comfort.....
Click to expand...
Indeed I was thinking the same thing… So AP racing advises a minimum of 4mm between the caliper and the wheel.
 
fran read this......

http://www.buybrakes.com/brembo/caliper-clearance.html

2mm is imo not enough.... like i say stones are ALWAYS flying around in the rims..... you could easily get one stuck between the two and get some damage.....

how about getting the slimmer setup.... we know it will fit but its tight.... BUT only drive to the mot station then refit spacer once its passed???

hell you can get some spacers and you cant tell their even there tbh.......
 
Beedub said:
fran read this......

http://www.buybrakes.com/brembo/caliper-clearance.html

2mm is imo not enough.... like i say stones are ALWAYS flying around in the rims..... you could easily get one stuck between the two and get some damage.....

how about getting the slimmer setup.... we know it will fit but its tight.... BUT only drive to the mot station then refit spacer once its passed???

hell you can get some spacers and you cant tell their even there tbh.......
Click to expand...

Indeed I was thinking the same thing ;)
Besides the trouble with the MOT (in my country), are there any other downsides on fitting a small spacer? When you fit spacers on the front, is it best that you also have fit them on the rear? Does it put extra stress on the wheel bearings?

For one thing; I'm clad that the AP kit does fit behind the wheel (even if it's super tight). I finally have found a BBK that I could consider buying, because it actually fits. I have looked at Mov’It, Brembo, Stoptech, BMW Performance (with modified bracket) and nothing could fit without spacers. Then I found the AP kit that was specific for the Z4M (like you say, the thinner caliper kit with a much slimmer pad).

Next month I'm going to replace my front discs and decide if I'm going for the AP racing Z4M or keep it oem and only upgrade my pads, braided lines, oil, etc

Thanks for the input!
 
if the spacer is hubcentric no extra load is placed anywhere at all.... the hubcentric spacer simply mimicks a wider hub ;-)
 
Beedub said:
if the spacer is hubcentric no extra load is placed anywhere at all.... the hubcentric spacer simply mimicks a wider hub ;-)
Click to expand...
I was searching for 5mm spacers... so that I could create a distance of 7mm between wheel and brake caliper. For the moment I can't find any 5mm spacers that are hubcentric? :(

Eibach: http://www.europerformance.co.uk/pages/products/product_info.mhtml?product=15348669
H&R: http://www.europerformance.co.uk/pages/products/product_info.mhtml?product=15343220
 
12mm will get no vibration at all.... its a flush fit everywhere... trust me i was really worried about fitting a spacer..... infact it looks great :-)
 
You should have a look on M3 cutters website. There is a site sponsor, who has his own section. He is called Cricmcn and he sells Bimecc hubcentric spacers for a really good price :D . 12mm is the smallest safe hubcentric you should go for. You can sometimes see 10mm ones, but the lip is not deep enough - stick to 12mm and they are perfect on the ///M with 8.5J front wheels - just ask Beedub ^^^ :thumbsup:

Here is his contact info...
http://forums.m3cutters.co.uk/showthread.php?t=26251
"Contact Details:
You can contact me via PM on here or by the following;
Email - [email protected]
Mobile - 07834023528 from UK / 0044 7834023528 from other Countries.
Call or text the above number. Leave a message if I'm unavailable and I will get back to you. If you are getting in touch by text, please state your forum username for future reference.

Payment Options:
- Paypal Gift (Preferred as its instant and wheels can be dispatched immediately).
- Bank Transfer (Usually takes up to 3 working days to clear).
- Card payments can now also be accepted.
Chris."

Craig
 
Beedub said:
12mm will get no vibration at all.... its a flush fit everywhere... trust me i was really worried about fitting a spacer..... infact it looks great :-)
Click to expand...
Did you fit them only at front?
 
Fran the rear is a good offset so no worries at all with the brakes..... Only front needed!!

Really makes the csls look how they do on the e46 csl..... Properly flush, really nice stance with 12mm up front!!
 
Sorry, just to be clear. You have spacers on the front and thats it...? How are they secured with your stud conversion.

If i was to get a set, what do i need to buy? Front and Rear? Also oem wheel nuts ok then? i assume you strew into the spacer not the hub?!
 
Longer bolts are required. They come with the kit I added the details for further up. With CSL's, spacers are only required at the front. (12mm is ideal).

The stud conversion would just have to be specified 12mm longer than standard conversion. The spacer is simply an addition/extension to the hub and acts as a sandwitch between the hub and wheel. The hubcentric part is important though as it allows the spacer to mount to the hub in the same way as the wheel would have, and in turn then lets the wheel mount to the spacer the same as it would have to the hub...
:thumbsup:
 
Aliv6 said:
Sorry, just to be clear. You have spacers on the front and thats it...? How are they secured with your stud conversion.

If i was to get a set, what do i need to buy? Front and Rear? Also oem wheel nuts ok then? i assume you strew into the spacer not the hub?!
Click to expand...

its nice and simple......

the rear has a great stock offset with csls @ et27, nearly ideal, so youve got that nice flush look,
the front CSL is actually RETRACTED more than the stock wheel, hence that tucked in wheel look.
stock fron is 42 and csls front et is 44 i believe, the lower the offset the more the wheel sticks out.

so a 12mm spacer on the front give you a nice square stance with the rear, both wheels sitting perfect and intune with the arch line.... 12mm give you a front offset of 32...

studs and nuts are the expensive option but for me, swapping and changing wheels, pads, and generally wanting to get the wheels off quicker they are the best mod ive done in ages, the nuts torque down alot nicer to due to the special design....... and they safe a few tiny lbs as well.

a 12mm spacer requires longer bolts BUT... most spacers like eibach for example come with longer bolts included :-)

the spacer simply hangs freely onto the hub, not bolting, nothing its held by your studs, or bolts....
a 12mm spacer fits like oem fitment.

im trying to find a pic thats got the spacer in... hold on..... ill try and grab one showing the new stance, remember your also widening the track ;-)

the holes on the spacer perfectly line with your pcd and no movement at all can happen once bolted down....

heres the eibach spacers, i sold the bolts as i have the stud conversino which allows upto 12.5mm spacer fitment :-)

apbrakeinstall022.jpg
apbrakeinstall070.jpg
 
The only thing that worries me about fitting spacers only on one axle is messing up the handling balance. I mean you're extending the front track more than 2cm wont that make a difference? :?
 
Ga41.... Its simply the same as fitting wide wheels, widening track doesnt upset handling..... If anything it helps. Search pretty much all race touring car teams, and spacers are used reguarly in other words, its a simple way of creating perfect offset :-)
 
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