brakes

All the info you need to race E30's

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Sx279
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Post Sat Nov 17, 2012 2:39 pm

I'm building my track car and the time has come to start looking at braking set-ups.
I am leaning towards the mazda rx7 callipers with vw carrado discs set-up but I wanted to no whether there was any other bolt on set from other BMW's as in direct bolt-on callipers with no mods.

thanks
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Stonkin
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Post Sat Nov 17, 2012 8:01 pm

Interested to see replies to this, as i to will be looking for a brake setup for my track/road car. I will be sticking with 4 stud, so have been looking at the WMS and Wilwood options for the front with stock rear discs, uprated pads, braided lines and good fluid.
Black_Potato
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Post Mon Nov 19, 2012 4:51 pm

You can get a pretty good setup with the standard calipers and decent pads like PAGID RS 29's.

That said after a few years of using that I'm going to upgrade the master cylinder to a 750i one and fit a pair of Willwood 1.38 - 4 pots for the front. I'll run stock calopers on the rear for now with a bias valve to tune it.

I havent historically been a EBC fanboy but I'll be trying out a set of Blue Stuff and a Set of Orange Stuff to see if they work well enough as one of the down sides of these aftermarket calipers on the front and standard on the rear seems to be a lack of pad compounds.

Given the upgrade isnt all that expensive at £500 or the cost of 1 track day if you like, I dont think I would go for some custom version of another caliper like the RX7 as if the worst happens and you under engineer something you might have a rather big off.
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DasChin
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Post Mon Nov 19, 2012 5:14 pm

focus on the pads like BP said. avoid EBC as they are not good and you get a lot of vibration with pads deposits and hot spots. I tried the Orange pads and not good.

sth like HAWK are just so so much better and worth the extra money.

a 4 pot with bigger discs and right pads/fluids will see you well. I ran 298.5 mm discs from WMS on the wildwood midilite caliper and with HAWK pads they were awesome.
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Sx279
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Post Mon Nov 19, 2012 8:52 pm

so no1 nos of any bolt on options?

i have been thinking of porsche boxster rear callipers there 4 pots and radial mounted, i can machine a set of adaptors myself but don't no what to do about discs without buying a million sets how can i find a set that fits?

also think i'm gona go pedal box rather than servo set up
keri-WMS
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Post Mon Nov 19, 2012 11:04 pm

Black_Potato wrote:That said after a few years of using that I'm going to upgrade the master cylinder to a 750i one and fit a pair of Willwood 1.38 - 4 pots for the front.
I'm confused! Don't you mean you're fitting WMS calipers? :?
Sx279 wrote:so no1 nos of any bolt on options?
WMS kits are as direct a bolt-on upgrade as exits (via the included brackets), and people have found downsides to the RX7 calipers which still need brackets.
WMS E30 brake kits! (4-pot 280mm & 300mm front / 2-pot 290mm rear)

www.wms-brakes.co.uk / http://www.e30zone.net/modules.php?name ... c&t=209737
Demlotcrew
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Post Tue Nov 20, 2012 9:45 am

Are the RX7 callipers steel cast bodies? Ie very heavy?
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Jimbob
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Post Tue Nov 20, 2012 10:49 am

If there was a bolt-on option it would be in the Wiki - you've checked there, right?
Black_Potato
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Post Tue Nov 20, 2012 4:11 pm

[quote="keri-WMS"][quote="Black_Potato"]That said after a few years of using that I'm going to upgrade the master cylinder to a 750i one and fit a pair of Willwood 1.38 - 4 pots for the front.

I'm confused! Don't you mean you're fitting WMS calipers? :?

quote]



My bad.. WMS as you say ;)

I did a test fit last night and overall I'm very happy so far. The completeness of the kit inc bolts etc, the alignment, ease of pad fitment/removal all seems very good.
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keri-WMS
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Post Tue Nov 20, 2012 4:13 pm

Black_Potato wrote:
keri-WMS wrote:
Black_Potato wrote:That said after a few years of using that I'm going to upgrade the master cylinder to a 750i one and fit a pair of Willwood 1.38 - 4 pots for the front.

I'm confused! Don't you mean you're fitting WMS calipers? :?


My bad.. WMS as you say ;)

I did a test fit last night and overall I'm very happy so far. The completeness of the kit inc bolts etc, the alignment, ease of pad fitment/removal all seems very good.
Ah! Cool, glad you like them so far! :cool:
WMS E30 brake kits! (4-pot 280mm & 300mm front / 2-pot 290mm rear)

www.wms-brakes.co.uk / http://www.e30zone.net/modules.php?name ... c&t=209737
Black_Potato
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Post Tue Nov 20, 2012 4:15 pm

On a side note do you recomend a specific torque for the bolts into the mounting braket ?
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Duke137
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Post Tue Nov 20, 2012 4:16 pm

Braking performance of the WMS kit is phenomenal over standard set up I love them but I have both front and rear WMS.
How do you pronounce 'either'? I say 'either', but some say 'either'. Either is correct.
keri-WMS
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Post Tue Nov 20, 2012 4:23 pm

Black_Potato wrote:On a side note do you recomend a specific torque for the bolts into the mounting braket ?
Yup, 40FtLb for the M10 caliper/bracket bolts and usually 60/65FtLb for M12 bracket/strut bolts.
Duke137 wrote:Braking performance of the WMS kit is phenomenal over standard set up I love them but I have both front and rear WMS.
Cheers! There are only a few people out there with the whole F+R setup....but I may do another run of the rears in the new year as I have one or two people who are very keen. 8)
WMS E30 brake kits! (4-pot 280mm & 300mm front / 2-pot 290mm rear)

www.wms-brakes.co.uk / http://www.e30zone.net/modules.php?name ... c&t=209737
DanThe
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Post Tue Nov 20, 2012 5:44 pm

Keri you have pm bruv 8)
keri-WMS
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Post Tue Nov 20, 2012 7:43 pm

Cool - will get back to you ASAP! :D
WMS E30 brake kits! (4-pot 280mm & 300mm front / 2-pot 290mm rear)

www.wms-brakes.co.uk / http://www.e30zone.net/modules.php?name ... c&t=209737
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Stonkin
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Post Tue Nov 20, 2012 9:20 pm

Good to hear comments on the WMS kit, as thats definetly what i am leaning towards :)
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kipsy
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Post Tue Nov 20, 2012 10:45 pm

I run the rx7 Calipers and vw discs set up. It's really good. I use brembo discs and mintex f series pads. I used ds3000 pads before these and found them crap as they melted and ruined my discs. The mintex pads are superb from Questmead. Just ordered 2 sets