Brake setup questions.

All the info you need to race E30's

Moderator: martauto

BadDave
E30 Zone Team Member
E30 Zone Team Member
Posts: 6012
Joined: Sun Jan 09, 2005 11:00 pm
Location: Nr Aberdeen.Scotland(Gods country)

Post Thu Apr 15, 2010 5:03 pm

gareth wrote:bodies in the boot again dave? :D
Not at the moment :mad:
But there is an 8x4ft sheet of 18mm MDF in the form of subwoofer cabinets and false flooring,also a Pr of subs(more to fit),amps, and other interesting processors and the battery to power the amps as well.

It all adds to the all up weight and will move the bias further rearward
Alpina B10 3.2L #187 (1 of 64 brought into the UK)
2.8L turbo build thread(work in progress)
http://www.e30zone.net/modules.php?name ... 27#1268227
GeoffBob
Forced Induction Specialist
Posts: 1843
Joined: Tue Apr 28, 2009 11:00 pm

Post Thu Apr 15, 2010 6:16 pm

Hello All,

In response to a PM from BillgatesE30 I had a close look at my my brake M/C selector guide that I posted here.

Please note that equations 1.5 and 1.6 were in error and have now been corrected (well spotted Chris). before anyone panics, please note these were purely typing errors (when I typed up the equations) and the actual numbers that I present are correct. You can check these for yourself if you like by downloading the Excel spreadsheet I created to solve these equations here

Sorry for the inconvenience everyone. If you have already downloaded my PDF document, please download it again and discard the old one.

Thanks
Geoff
Image

"It is amazing how many drivers, even at the Formula-1 level, think that brakes are for slowing the car down." - Mario Andretti
billgatese30
E30 Zone Team Member
E30 Zone Team Member
Posts: 10989
Joined: Sun Jan 09, 2005 11:00 pm
Location: Tyne & Wear

Post Wed May 26, 2010 11:38 pm

Right, I'm back. And other than doing plenty of drawings, I'm not much closer to finding a good combo that'll fit what i want....yet.

However, for the short term (and for an up coming trackday) I want to go from my current Audi 25mm m/c to a 23mm master cylinder or so, purely to reduce pedal effort slightly as currently you need legs like He-man to pull up a good stop.

Question is, with me currently having the S50 fitted, the car has a golf mk2 1.3 servo fitted (with an audi 25mm m/c), question is, what 23mm m/c will be compatible with the servo? Any idea's anyone
jmc330i
Engaged to the E30 Zone
Engaged to the E30 Zone
Posts: 6621
Joined: Mon Jan 10, 2005 11:00 pm
Location: Somerset

Post Thu May 27, 2010 8:58 am

Audi do a 23.81mm m/c, from memory in the 80 2.8 V6. I think its the same fitment as the 25mm m/c you have now.
James
'91 325i Sport
'93 318i touring 16v