AP racing bbk + air ducting?

[bmwm3fanatic]

Wondering if anyone on here with AP racing bbk’s have ran air ducting with them?

[PrimeBMW]

Originally Posted by bmwm3fanatic

Wondering if anyone on here with AP racing bbk’s have ran air ducting with them?

Yes but with a 500 whp e46 M3. 355mm rotors. One duct made a difference but two per side was the magic sauce 😉

[slcook54]

Mine is in progress. My 9668 kit arrives Monday to replace my 9660 kit.

I've been frustrated with front pad life.

I have bimmerworld aero, ducting and backing plates going on in the next few months.

Pads will be ferodo 3.12 for now.

[PrimeBMW]

😃

[CorruptCommie]

Originally Posted by PrimeBMW

Yes but with a 500 whp e46 M3. 355mm rotors. One duct made a difference but two per side was the magic sauce 😉

How did you determine you needed 2 over 1 or none? Also that's a sweet sway bar, which one is that?

[PrimeBMW]

Originally Posted by CorruptCommie

How did you determine you needed 2 over 1 or none? Also that's a sweet sway bar, which one is that?

I was complaining when I had no ducts. My race engineer/AR Motorsports put heat/temp strips on the calipers. One duct helped for a short time (one lap) so we added another.

The sway bar is a Trans Am style bar. They would run this on a TA2 car. Custom adapted to an E46 M3 😉

[CorruptCommie]

Originally Posted by PrimeBMW

I was complaining when I had no ducts. My race engineer/AR Motorsports put heat/temp strips on the calipers. One duct helped for a short time (one lap) so we added another.

The sway bar is a Trans Am style bar. They would run this on a TA2 car. Custom adapted to an E46 M3 😉

Interesting, where on the caliper did you guys place the temp sticker? I can't seem to get a reading. What temp where you aiming for?

Essex seems to think that we shouldn't use ducting for this kit as it will stress crack the rotors. But would like to verify.

[Project_Rogue_Motorsport]

Originally Posted by CorruptCommie

Interesting, where on the caliper did you guys place the temp sticker? I can't seem to get a reading. What temp where you aiming for?

Essex seems to think that we shouldn't use ducting for this kit as it will stress crack the rotors. But would like to verify.

If you're going to track then ducting and a sufficient back plate is a must.

You'll destroy pads and rotors quicker without a cooling solution, not to mention give yourself brake fade and loss of performance quickly in comparison.

(The temp gauge goes on the outward face of the caliper.)

[spxxx]

Originally Posted by PrimeBMW

😃

Awesome ducting set-up, too bad we typically have less aero real estate on E9X's with the trans cooler. No issues with heat around your tie-rod / control arm heim joints? Poor bearings haha they must get HOT.

[CorruptCommie]

Originally Posted by Project_Rogue

If you're going to track then ducting and a sufficient back plate is a must.

You'll destroy pads and rotors quicker without a cooling solution, not to mention give yourself brake fade and loss of performance quickly in comparison.

(The temp gauge goes on the outward face of the caliper.)

I've ran both ways on the AP9668 setup in an E46M. Not really much difference. The front pads are at about half after 8 events.

[PrimeBMW]

Originally Posted by spxxx

Awesome ducting set-up, too bad we typically have less aero real estate on E9X's with the trans cooler. No issues with heat around your tie-rod / control arm heim joints? Poor bearings haha they must get HOT.

Everything stays pretty cool up there now. No issues that I've seen.

[nicksm3]

Originally Posted by PrimeBMW

😃

Everything here is