upgrading brakes.

[RB Will]

Hi all I have an e30 325i sport and use it on track a bit can anyone reccommend a good brake set up and suspension. at the moment the brakes are standard all round which while working fairly well tend to go a bit soft after a few laps and the suspension is just way too soft. its standars bar a set of -60mm AC Schnitzer lowering springs. who used what?
cheers

[RB Will]

anyone

[RLK500]

Well it depends on how much you want to spend and how much compromise you are willing to deal with. Firstly brakes. I track an E30 M3 and while the stock brakes are fine stopping wise, the sliding cast iron caliper setup is useless in terms of endearing the disks with long life. Once they are hot they will remain hot forever, so evertime you go out for the next session your disks, pads, fluid are just getting a little more cooked. If you want to keep the stock brakes then swapping the fluid for Castrol SRF Fluid or Motul 600 is a good step forward. Replacing your hoses for stainless braided versions are worth a shot. Finally, make sure you run good pads. Good pads are expensive, Ferodo DS2500/3000, Mintex F4R or Pagid Blues are all good. Steer well clear of EBC Greenstuff and anything touted as Fast Road, they won't cut it on track. If like me you did all this and still got fed up with dreadfull brake vibration and an every increasing pile of ruined disks in your garage then you can really sort the problem out with a set of AP's. They are expensive for a reason, they work. In 2 years of tracking the car with AP's I haven't had to tocuh the brakes apart from normal care, and I am on the same set of pads........

Suspension. Bit like brakes in terms of cost. LEDA's are expensive (not sure if they are back in business yet) But they are adjustable, re-buildable and you can set the car up how you want it to work rather than a fixed setup decided in a factory. My best advice is to buy something adjustable, as you drive more you start to know how you want the car setup, so having adjustable suspension is the way to go.

[iguana]

e30 325 tracker here-

Brakes- braided lines, RBF600 fluid, change it yearly, (almost as good as SRF but a lot less ££ ) ebc yellow pads- not the best but a lot cheaper than most & cope fine, pagid rs19 really are the daddy for these but mega££ but should last a lot lot longer tho, ferodo 2500 well regarded too, but again more ££ than the ebc yellows, then fog lights out (cooling ducts on wishbones pointing to disc not a bad idea either), & backing plates off for extra cooling.

I dont think you need to spend mega on brakes on these, if stripped not much over a ton & the seloc racers have to keep stock calipers & disc size.

Suspension- eibachs & koni adjustables, not bad at all, would perhaps be better with some aftermarket ARBs, but maybe in the future.

If a few ££ in ya pocket maybe look at the Gaz coilover kit, used by many of the seloc racers.

Edited by iguana on Monday 10th September 20:29

[RB Will]

hi again. trying to buy brake pads but having trouble finding the ferodo pads for an e30 325is. demon tweeks offers them for the e30m3 or m5 does the m3 have the same setup as the 325is?