My "new" BRG 323ti

[ianik]

If you had to modify your M3 master cylinder, you probably don't choose the right one.... The M3 master cylinder from M3 3,2L Euro has M12 and M10 fittings

You also need the M3 3,2L servo, or just use your OEM one, but require to cut 5mm of the M3 master cylinder shaft.

[Alexandre VTS]

Originally Posted by ianik

I currently run AP brakes front on my 323ti ( 330x28 ). They fit well behind my BBS RX 8x17, no spacer.

I also have a set of BBS RX 8x18, and of course they fit also good , no spacer, with an extra centimeter of clearance.

>>>e36 323ti :I have to speak about rear brakes with you as i have a project for them.

Great info. I tryed car configurator at bbs website: www.bbs-usa.com
With a Big Brake Kit, only options that appears are CH, LM and RE.

Ianik, wich ET are this RX 18X8?

Maybe wilwood calipers are larger then AP?

[ianik]

Originally Posted by Alexandre VTS

Ianik, wich ET are this RX 18X8?

Maybe wilwood calipers are larger then AP?

My road tyred BBS RX are 8x18 ET38

Don't know for dimensions of Ap vs Wilwood.

[e36 323ti]

Originally Posted by ianik

If you had to modify your M3 master cylinder, you probably don't choose the right one.... The M3 master cylinder from M3 3,2L Euro has M12 and M10 fittings

You also need the M3 3,2L servo, or just use your OEM one, but require to cut 5mm of the M3 master cylinder shaft.

Which master cylinder should I have used? It seems to me like all e36 m3's have one M10 and one M12 fitting, while the 323ti have two M12 fittings.

[ianik]

Originally Posted by e36 323ti

Which master cylinder should I have used? It seems to me like all e36 m3's have one M10 and one M12 fitting, while the 323ti have two M12 fittings.

Strange... My 323ti has one M10 and one M12.

Do you have a MSN ? I have things to discuss with you about my rear brakes...

[e36 323ti]

Originally Posted by ianik

>>>e36 323ti :I have to speak about rear brakes with you as i have a project for them.

I can see you also have the same front callipers as I have

Don't hesitate to take contact. I am more than willing to participate in a project to find alternative rear brakes (wented I presume...).

I am also participating in a project with some other 323ti-owners with the aim of designing an ICV-delete hardware. On the M52 the ICV (Idle Control Valve) makes an annoying delay in throttle response when one goes off the throttle. The scope is to see if we can overide the ICV, and by that also get good throttle response (especially for track days in mind). The HW is designed, but it need to be built and tested. Maybe it would be ready for next summer track day events...

[ianik]

Originally Posted by e36 323ti

I can see you also have the same front callipers as I have

Don't hesitate to take contact. I am more than willing to participate in a project to find alternative rear brakes (wented I presume...).

I am also participating in a project with some other 323ti-owners with the aim of designing an ICV-delete hardware. On the M52 the ICV (Idle Control Valve) makes an annoying delay in throttle response when one goes of the throttle. The scope is to see if we can overide the ICV, and by that also get good throttle response (especially for trak days in mind). The HW is designed, but it need to be built and tested. Maybe it would be ready for next summer track day events...

Ok.

It would be easier if you had an MSN adress.

I'm planning on doing a rear setup with rear BMW X3 3,0L rotors ( 320x22 ). It has the good height (80mm), it juste needs larger hand brake shoes.

I was thinking about front Ap racing rotors from an Opel Speedster ( Ap racing 2 pistons ).

Let me know if you think it would be reliable and well balanced with the front.

[e36 323ti]

Originally Posted by ianik

Ok.

It would be easier if you had an MSN adress.

I'm planning on doing a rear setup with rear BMW X3 3,0L rotors ( 320x22 ). It has the good height (80mm), it juste needs larger hand brake shoes.

I was thinking about front Ap racing rotors from an Opel Speedster ( Ap racing 2 pistons ).

Let me know if you think it would be reliable and well balanced with the front.

I have sent my mailadress to you by PM.

To maintain stock bias (72.62%) with our AP-Racing front setup (CP5200 and 330mm disks) and using 320mm rear disks, we need a piston diameter of 35mm. With 38.1mm (AP-Racing CP5316) we get a bias of 69.12%. Maybe a bit to rear biased (-3.6%) or maybe it is perfect? I do not feel comfortable by altering the bias, but maybe 3.6% more to the rear is not noticeable....

Just to compare: The euro e36 m3 has stock bias of 70.5%, and with full AP-Racing BBK it is changed to 69.57%

What is the AP-Racing part.no. for the Opel Speedster calliper (I assume you mean the calliper from the Opel)?

[e36 323ti]

Originally Posted by ianik

Strange... My 323ti has one M10 and one M12.

Do you have a MSN ? I have things to discuss with you about my rear brakes...

I am sorry. You are right! The 323ti has one M10 and one M12. I am standing right!

My M3 master cylinder had two M10, and one of them had to be changed to M12. I do not remember if the master cylinder was from a 3.0 or 3.2.

I can see from the ETK that one of the pipes for the euro M3 m3.2 is M12 in one end. The rest is M10, while the 3.0 has M10 on all 4. However the ETK does not tell where the M12 should be connected.

If you have tried it I believe you if you say that the euro e36 m3 3.2 has one M10 and one M12.

[ianik]

Originally Posted by e36 323ti

My M3 master cylinder had two M10, and one of them had to be changed to M12. I do not remember if the master cylinder was from a 3.0 or 3.2.

If you have two M10 fittings on your master cylinder you purchased either a 3,0L euro M3 one , or an 3,0L/3,2L US one. The Euro 3,2L has M12 and M10 fittings. Only one of the hose has to be slightly bent, nothing crazy.

Perhaps we could open a new thread brake relatived. I think some people here coulb be interested as I think this X3 / Opel Speedster combo would work lovely.

The caliper from Opel Speedster is the AP Racing 5316 with 38,1mm pistons.

They accomodate rotors up to 332mm so X3 ones would be ok.

The slight alteration of brake bias could be minimized by using different sort of pads front and rear.

[e36 323ti]

Originally Posted by ianik

If you have two M10 fittings on your master cylinder you purchased either a 3,0L euro M3 one , or an 3,0L/3,2L US one. The Euro 3,2L has M12 and M10 fittings. Only one of the hose has to be slightly bent, nothing crazy.

Perhaps we could open a new thread brake relatived. I think some people here coulb be interested as I think this X3 / Opel Speedster combo would work lovely.

The caliper from Opel Speedster is the AP Racing 5316 with 38,1mm pistons.

They accomodate rotors up to 332mm so X3 ones would be ok.

The slight alteration of brake bias could be minimized by using different sort of pads front and rear.

I bought the master cylinder from the US....

Yes, a new thread is a good idea, or maybe we could extend my provious one ... : http://www.318ti.org/forum/showthrea...t=12852&page=6

[Alexandre VTS]

So,

Do you guys reach a conclusion about which master cylinder use on a 323ti?

[ianik]

Originally Posted by Alexandre VTS

So,

Do you guys reach a conclusion about which master cylinder use on a 323ti?

The only one, direct fit is the euro 3,2L one with his servo.

You can bolt it to your servo, but it will require to cut 5mm of the master cylinder shaft.

[e36 323ti]

Originally Posted by ianik

I'm planning on doing a rear setup with rear BMW X3 3,0L rotors ( 320x22 ). It has the good height (80mm), it juste needs larger hand brake shoes.

Please have a look here: http://www.318ti.org/forum/showthrea...379#post229379

[krautrock]

Just would like to say thats the nicest ti Ive ever seen.