Vented rear disk on an e36 compact?

[e36 323ti]

Originally Posted by pdxmotorhead

Wilwood has all levels of calipers. the one equivalent to he AP is not much money... < 110 bucks.

http://www.wilwood.com/Calipers/Cali...napro%20Single

For the front... Just one example... Could go bigger...
http://www.wilwood.com/Calipers/Cali...row%20Dynalite

The pads are the same price as the stock pads IF your buying street performance pads like Hawk or Carbo Tech. Budget 200 to 300 for front + rear...

Like a brembo or AP go high end and cubic dollars are required..

Dave

None of the calipers linked to are radial mount type, and I would not consider them as equivalent to the AP. It is definitely not any that I would have chosen, going the Willwood route. Did I mention the bias...
I think the UUC-route is more like what I would have chosen.

If price is the ultimate issue, the route to choose is dependent on which side of the pond one are sitting. On this side (europe) the Willwood parts is not the preferred brand, since it is as pricy as other brands. Not to forget availability, pad availability etc...

As I have said before: my brand new rear AP calipers is cheaper than buying new stock 'ti calipers from BMW. The pad availability is grate. The discs availability is great. The front kit was in the price range comparable with Brembo, StopTech, Wilwood etc...

Please remember: There is no front + rear BBK kit for the 'ti on the market today that combine larger brakes with close to stock bias.

[e36 323ti]

Originally Posted by e36 323ti

What remains before the final conclusions is to be drawn is to test the car at the race track...

Attended at a BMW club track day event. Had some problems getting rid of pad deposit from the street pads on the front discs. However, when the deposit disappeared, the brakes functioned perfectly. The car is very well balanced.

A downside is that the rear brakes for the time being are very noisy, since I have not mounted a noise reduction clip on the calipers.

[e36 323ti]

Originally Posted by e36 323ti

A downside is that the rear brakes for the time being are very noisy, since I have not mounted a noise reduction clip on the calipers.

The noise problems on the rear calipers seems to be solved. Used the recommendations as for the TVR community - copper grease on selected spots on the rear side of the pads (between piston and pad, and on the spots where the pad touch the caliper). No squeal after that.

[e36 323ti]

The complete brake system has now been through its first winter. No problems with the rear brakes.

Had some issues with the front calipers. The brake pad dust from the Ferodo DS2500 street pads combined with salty roads seems not ideal. The dust from the brake pads gradually formed a compound so hard that the front pads almost get completely stuck. After a thoroughly cleaning process, removing the hard compound, the brake performance (and brake balance) was back to normal.

[e36 323ti]

The brakes are still working perfect.

[vesku]

I had 300m front disks and std solid rear disks. After some track laps infrared meter showed 100C more for rear disk than front. With new solid but drilled and grooved + cooling hose to a tube welded to the backplate the temperatures were 20C less compared to front disks. 120C decrease! Of course I remove the hoses at street...

[Simas323]

Hello,

Have anyone tested 38mm e32 735i rear brakes on ti? As in previous pages shown, caliper housings are the same, but what brakes discs can be used?

Also what will be brake balance with e46 330i front brakes and stock brakes?

Thanks

[bmw-slangen]

Originally Posted by Simas323

Hello,

Have anyone tested 38mm e32 735i rear brakes on ti? As in previous pages shown, caliper housings are the same, but what brakes discs can be used?

Also what will be brake balance with e46 330i front brakes and stock brakes?

Thanks

Yeah, I use E32 735i rear brakes (38 mm).

Ok, have to admit it is on a E30 that is some sort of a bastard. But as you know it is popular to bolt on the entire E36 CPT rear onto the E30 as a 5 lug conversion - so the information should be relevant.

REAR
Trailing Arm : E30 325i (needed the bigger wheel bearings)
Wheel Hub Flange : Z3
Wheel Bearing : 42X75X37 (same as E36 323ti)
Output Shaft : E30 325i
Brake Caliper Carrier : E36 316ti (02/2000)
Brake Caliper : E32 735i (03/1988)
Brake Disc : Z3 (272x10, Brembo 08.6853.81)
Brake Pad : StopTech Street Performance 309.03960

FRONT
Strut : E30 323i
Wheel Bearing : E36/E36CPT/E46 (BMW 31 22 6 757 024)
Adapter Sleeve (to fit the wheel bearing)
Adapter Nut (to fit the wheel bearing)
Adapter Brake Caliper Carrier
Brake Caliper Carrier : E36 M3 (03/1997)
Brake Caliper : E36 M3 (03/1997)
Brake Disc : E46 330i (325x25, Brembo 09.8952.11)
Brake Pad : Carbotech XP8


I did a very quick & dirty static brake balance calculation (only based on piston size and didn't take the increased rotor size into account).

Piston Diameter BEFORE = 48/33 mm (front/rear)
Piston Diameter AFTER = 60/38 mm (front /rear)

So before I had a distribution of about 68/32% and after I have a distribution of about 71/29%.


Nevertheless, I removed the factory brake pressure regulator and replaced it with an adjustable brake pressure regulator from Tilton to be able to fine-tune the balance.


I just got the car through state inspection (so you can drive on public roads) and just made the very first shake down (the car has been completely disassembled over a period of 5 years - so I might have forgotten a bolt or two).
And it's still like only +5 degree C here, and I only have ordinary summer tires so can't do too aggressive brake tests. Well, I can say that the front tires are still locking up first at least

[bmw-slangen]

But to be 100% honest I haven't mounted the E46 330i brake discs yet.

I still have some clearence issues with the steering tie rod to sort out (I don't think you ti guys suffer from this).

So as a gap filler I grabbed a set of Corvette C5 brake discs (325x32) to be used until I have solved the clearence issues. The rest of the setup is the same.

But I can tell you that it was a b***h to get those brake discs to fit I'm talking about feeler gauge clearances at most places But it works so I'm happy as a clown

But I couldn't use the brand new Carbotech XP8 brake pads, so I had to go for used Pagid RS2 in order to be able to squeeze the pads in between brake disc and brake caliper.

[Simas323]

Originally Posted by bmw-slangen

Yeah, I use E32 735i rear brakes (38 mm).

Ok, have to admit it is on a E30 that is some sort of a bastard. But as you know it is popular to bolt on the entire E36 CPT rear onto the E30 as a 5 lug conversion - so the information should be relevant.

REAR
Trailing Arm : E30 325i (needed the bigger wheel bearings)
Wheel Hub Flange : Z3
Wheel Bearing : 42X75X37 (same as E36 323ti)
Output Shaft : E30 325i
Brake Caliper Carrier : E36 316ti (02/2000)
Brake Caliper : E32 735i (03/1988)
Brake Disc : Z3 (272x10, Brembo 08.6853.81)
Brake Pad : StopTech Street Performance 309.03960

FRONT
Strut : E30 323i
Wheel Bearing : E36/E36CPT/E46 (BMW 31 22 6 757 024)
Adapter Sleeve (to fit the wheel bearing)
Adapter Nut (to fit the wheel bearing)
Adapter Brake Caliper Carrier
Brake Caliper Carrier : E36 M3 (03/1997)
Brake Caliper : E36 M3 (03/1997)
Brake Disc : E46 330i (325x25, Brembo 09.8952.11)
Brake Pad : Carbotech XP8


I did a very quick & dirty static brake balance calculation (only based on piston size and didn't take the increased rotor size into account).

Piston Diameter BEFORE = 48/33 mm (front/rear)
Piston Diameter AFTER = 60/38 mm (front /rear)

So before I had a distribution of about 68/32% and after I have a distribution of about 71/29%.


Nevertheless, I removed the factory brake pressure regulator and replaced it with an adjustable brake pressure regulator from Tilton to be able to fine-tune the balance.


I just got the car through state inspection (so you can drive on public roads) and just made the very first shake down (the car has been completely disassembled over a period of 5 years - so I might have forgotten a bolt or two).
And it's still like only +5 degree C here, and I only have ordinary summer tires so can't do too aggressive brake tests. Well, I can say that the front tires are still locking up first at least

Thanks for answer

So e32 caliper carrier does not fit to use 300x12 disc?

[bmw-slangen]

Originally Posted by Simas323

Thanks for answer

So e32 caliper carrier does not fit to use 300x12 disc?

Yeah, the E32 brake caliper carrier should work with 300x12 disc - since they used 300x12 originally on the E32 730i/735i (early models had 300x10).


But I'm using the E36 316ti brake caliper carrier, and I'm pretty sure that they can not handle a 300x12 brake disc (the 12 mm thickness shouldn't be a problem - it is the increased diameter from 272 to 300 mm that most probably causes problems).

But if you make an adaptor, then I think E32 730/735i brake caliper carrier + brake caliper should be possible to use on the E36 CPT. But don't know what brake discs that can be used in that setup, if any.