Track & Brake Question

[quasi notch]

Hello,

I am looking to track my 2004 Z4.

I was wondering what I should do to prep my car for the track?

Additionally, I am looking to replace my brakes and do my brake fluid. What brake & brake fluid should I purchase?

Thanks!

[naive reef]

I’ll leave others with more track experience than me to make brake and brake fluid recommendations. That said, those are the first steps: pads/rotors/fluid. The second steps are prepping your cooling system. If you don’t know when the coolant was last changed, now is the time. And if the z4 has that plastic expansion tank like the e39/e46 does, do that too. You want to make sure your cooling system is sorted as you’ll be putting more load on it than it typically sees.

[shadow kindle]

Dot 4 is compatible with dot 3 shit, dot 5 is NOT

[pseudo stream]

I would go with whatever the car manual says

[shadow kindle]

I wouldn't put dot 3 in, on a serious track car

[quasi notch]

Ah got it, I just had a shop replace my expansion tank with a new one. Unfortuantely that one was plastic too though 😦

[quasi notch]

Unfortunately, my manual doesn't seem to specify the type 😦

A google search shows low-viscosity DOT4

What other tools would I need to purchase to change the fluid?

Also with regards to the pads, is there a branch or something I should go for?

[robust grove]

DOT 5.1 is

It's weird

[pseudo stream]

yea

is dot 5.1 better than 4 ?

[quasi notch]

I see, I found this on fcp euro: https://www.fcpeuro.com/products/sl6-brake-fluid-1-liter-ate-sl6#description

Would this be a good kit to purchase for hybrid track/street use?

[robust grove]

Yes but most people only need 4

[quasi notch]

Ah nvm, I'm looking at Motul RBF600

[pseudo stream]

Can i use 5.1 instead of 4

[pseudo stream]

1 liter dot 4 fluid is $7 at walmart

[naive reef]

That’s actually fine - you’ll be set. It’s the combination of plastic plus age that leads to failure, so now you’re set for a decade 👍

[quasi notch]

Ah okay, the car needs DOT4 Low Viscosity, but would the walmart fluid work for track use too?

[quasi notch]

Cool 😄

[pseudo stream]

idk

if your car calls for dot 4 then use dot 4

[west maple]

high temp brake fluid, do not get drilled rotors but slotted rotors are fine, carbon ceramic pads and get a bbk (big brake kit) of some kind

https://www.zpost.com/forums/showthread.php?t=442217