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Caliper change help required!

Specific discussion about the E89 2009 Z4 (sDrive35is, sDrive35i, sDrive30i, sDrive23i)
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Himi
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Caliper change help required!

Post by Himi » Tue Sep 25, 2018 9:18 pm

Hey guys, I'd really appriciate any help and guidance!

Over the last few days I keep seeing f series cars with the blue calipers and I really want them.

After doing a quick search, I've seen braking upgrades for the 35i but I have a 20i and only really want it aesthetic reasons. I can settle for painting the brake calipers but I'd rather not.

Anyone had any experience changing these over? What would I need?
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ronk
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Caliper change help required!

Post by ronk » Tue Sep 25, 2018 10:47 pm

Probably bigger wheels an the bigger disks - the 335 we have had 19“ wheels and 340mm or 370mm disks - the winter 18“ wheels however do fit over the calipers.

A warning tho, Discs and Pads are £650 to replace.
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So I bought a 35is with all the toys to play with. :thumbsup:

Pbondar

Caliper change help required!

Post by Pbondar » Wed Sep 26, 2018 9:47 am

One of the 28i guys did a major swap out....his comments were that yes they looked great but on the road he couldn’t say that there was any benefit...

I run a re mapped 20i that run faster than a 28i and can’t say I have ever felt it was underbraked....

I went through this process, I’ve acquired some 28i front discs and a pair of calipers to go with them and having gone through various options, blue, yellow to match the car, will probably go with silver or black...

Personally I think the sliding calipers used on the E89s just don’t look cool when put on too much show..

Also the wheel design is a key issue, wheels with tiddly calipers and small number of thin spokes eg 326m look silly mho...

I see the new G29 M40i Z4 paints them but actually it seems it a sliding Caliper with a cosmetic cheat to make it look like an opposed piston multi pot design...

Your opinions may differ.. :poke:

Himi
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Caliper change help required!

Post by Himi » Wed Sep 26, 2018 9:50 pm

Pbondar wrote: Wed Sep 26, 2018 9:47 am One of the 28i guys did a major swap out....his comments were that yes they looked great but on the road he couldn’t say that there was any benefit...

I run a re mapped 20i that run faster than a 28i and can’t say I have ever felt it was underbraked....

I went through this process, I’ve acquired some 28i front discs and a pair of calipers to go with them and having gone through various options, blue, yellow to match the car, will probably go with silver or black...

Personally I think the sliding calipers used on the E89s just don’t look cool when put on too much show..

Also the wheel design is a key issue, wheels with tiddly calipers and small number of thin spokes eg 326m look silly mho...

I see the new G29 M40i Z4 paints them but actually it seems it a sliding Caliper with a cosmetic cheat to make it look like an opposed piston multi pot design...

Your opinions may differ.. :poke:
This is bang on mate. I don't feel any issue with the brakes but like you said, I just feel like they should look better!

I found out today people actually powdercoat calipers so I may just end up doing this.

Good to know about the new z4 cheating it's breaks... It may be an option down the line!

Glad there's no issue with the remap! I keep nagging the wife about wanting one, so it should get approved soon!

john-e89
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Caliper change help required!

Post by john-e89 » Wed Sep 26, 2018 9:59 pm

Himi wrote: Tue Sep 25, 2018 9:18 pm Hey guys, I'd really appriciate any help and guidance!

Over the last few days I keep seeing f series cars with the blue calipers and I really want them.

After doing a quick search, I've seen braking upgrades for the 35i but I have a 20i and only really want it aesthetic reasons. I can settle for painting the brake calipers but I'd rather not.

Anyone had any experience changing these over? What would I need?
Check out Bigg Red brakes Himi. They do calipers, kits, and a fantastic refurb service including power coating. I’ve seen some of their refurbished calipers and they’re outstanding. :thumbsup:
M roady...OEM CSL’s, strut brace, Remus back boxes, ZHP
MR2 MK 2
E89 35i project car...mapped 365bhp, M4 stoppers & wheels, KWV3’s, H&R front ARB, M3 front arms, strut brace Eisenmann cat back race exhaust, VRSF downpipes inbound
E89 35is
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Caliper change help required!

Post by MrPT » Wed Sep 26, 2018 11:01 pm

As well as the usual £3k+ kits from the Brembo, Alcon etc, K-Sport do an 8-pot front BBK for the E89. Their stuff tends to get OK reviews from the M3 crowd.
2008 Z4MC: heavy wheels | crap suspension | skittish rear end | wobbly engine | not enough induction noise | underwhelming turn in | inconsistent braking | lardy battery | chubby steering wheel
2006 Z4 2.5si: gone

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SteveSmith
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Caliper change help required!

Post by SteveSmith » Thu Sep 27, 2018 1:09 pm

I’ve got the 340mm 4 pots fitted to my 28i.

I love them, they look great and you always see “car” people look at them when I’m on the motorway!

I think I paid around £500 for the discs, calipers and pads. They’re a direct fit, no adapters or anything.

Happy to try and help more if you’re interested :thumbsup:
28i M Sport - Alpine White / Canberra Beige, 19" M359’s, H&R’s / Eibachs, BMS Stage 1 - 271bhp, Front Splitter, CF Rear Lip, Alcantara Steering Wheel and Brembo 4 pots

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warmasice
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Caliper change help required!

Post by warmasice » Thu Sep 27, 2018 6:25 pm

Pbondar wrote: Wed Sep 26, 2018 9:47 am One of the 28i guys did a major swap out....his comments were that yes they looked great but on the road he couldn’t say that there was any benefit...

I run a re mapped 20i that run faster than a 28i and can’t say I have ever felt it was underbraked....

I went through this process, I’ve acquired some 28i front discs and a pair of calipers to go with them and having gone through various options, blue, yellow to match the car, will probably go with silver or black...

Personally I think the sliding calipers used on the E89s just don’t look cool when put on too much show..

Also the wheel design is a key issue, wheels with tiddly calipers and small number of thin spokes eg 326m look silly mho...

I see the new G29 M40i Z4 paints them but actually it seems it a sliding Caliper with a cosmetic cheat to make it look like an opposed piston multi pot design...

Your opinions may differ.. :poke:
This!
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Himi
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Caliper change help required!

Post by Himi » Sun Sep 30, 2018 9:17 am

SteveSmith wrote: Thu Sep 27, 2018 1:09 pm I’ve got the 340mm 4 pots fitted to my 28i.

I love them, they look great and you always see “car” people look at them when I’m on the motorway!

I think I paid around £500 for the discs, calipers and pads. They’re a direct fit, no adapters or anything.

Happy to try and help more if you’re interested :thumbsup:
This sounds like something in my price range haha. Did you have trouble sourcing all this or was it easy to find?

Himi
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Caliper change help required!

Post by Himi » Sun Sep 30, 2018 9:18 am

Thanks all for the replies! Bigg brakes do seem to be one option!

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Caliper change help required!

Post by SteveSmith » Tue Oct 02, 2018 7:52 pm

28i M Sport - Alpine White / Canberra Beige, 19" M359’s, H&R’s / Eibachs, BMS Stage 1 - 271bhp, Front Splitter, CF Rear Lip, Alcantara Steering Wheel and Brembo 4 pots

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Maybach_man
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Caliper change help required!

Post by Maybach_man » Thu Oct 11, 2018 4:06 pm

Anybody found any compatable rears?

Himi
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Caliper change help required!

Post by Himi » Thu Oct 11, 2018 11:26 pm

Maybach_man wrote: Thu Oct 11, 2018 4:06 pm Anybody found any compatable rears?
It seems like the only way of converting the rears means losing your handbrake. So depends on your priorities!

Himi
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Caliper change help required!

Post by Himi » Thu Oct 11, 2018 11:27 pm

Thankyou! I can't believe I missed this!

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