380BBK on 18" wheels. Wont it be hot?

Razif · 08-03-2017, 04:17 AM

Hello all.

My common sense says that a 380mm BBK on 18" wheels will make the cooling significantly worse? Since it sits so close to the wheels and air cannot get to the brake vents as much?

What are your thoughts?

Look at how close that brake's vent is to the wheels. Wont this limit or block air into the vents?

Richbot · 08-03-2017, 08:49 AM

No.

http://www.caranddriver.com/reviews/...r-feature-test

dparm · 08-03-2017, 10:23 AM

I've never heard of it being a problem. Remember that a ton of air is fed to the back side of the rotor anyway.

2bits · 08-07-2017, 03:54 PM

If the discs are installed correctly, the vents pull fresh air from the hub area and throw it out the edge. As long as there's enough clearance for the vented air to escape out the disc edge, it will work fine.

I have 380's on 18's and there's plenty of clearance.

roastbeef · 08-07-2017, 08:38 PM

if you are able to fit a caliper in there, the rotors will have proper ventilation.

Razif · 08-08-2017, 05:00 AM

Kulle.

tlrid3r · 08-10-2017, 06:52 PM

The air enters the rotor from the center and exits at the edge of the rotor. I have that setup and cooling is not affected.

CLUBBER · 08-16-2017, 06:01 AM

Might be slightly off topic BUT, could anyone confirm if Brembo 380mm kit would clear OEM 18"s ?

Dreamer99 · 08-16-2017, 06:36 PM

I tried the Brembo 380 template with a 15mm spacer in my 219M 18" front wheels and it did not fit.

08-03-2017, 04:17 AM	#1
Razif Private First Class 29 Rep 151 Posts Drives: Bmw e92 m3 Join Date: Jul 2017 Location: Kuala Lumpur, Malaysia iTrader: (0)	380BBK on 18" wheels. Wont it be hot? Hello all. My common sense says that a 380mm BBK on 18" wheels will make the cooling significantly worse? Since it sits so close to the wheels and air cannot get to the brake vents as much? What are your thoughts? Look at how close that brake's vent is to the wheels. Wont this limit or block air into the vents? Attached Images
	Appreciate 0 Tweet Quote

08-03-2017, 08:49 AM	#2
Richbot Major General 2760 Rep 5,483 Posts Drives: Jerez Black E90 Join Date: Sep 2007 Location: STL iTrader: (5)	No. http://www.caranddriver.com/reviews/...r-feature-test __________________
	Appreciate 0 Quote

08-03-2017, 10:23 AM	#3
dparm Stop the hate, get a V8 3850 Rep 8,625 Posts Drives: C7 Corvette GS, AMG C63 S Join Date: Jun 2013 Location: Frisco, TX iTrader: (1)	I've never heard of it being a problem. Remember that a ton of air is fed to the back side of the rotor anyway. __________________ Now: 2017 Corvette Grand Sport, 2021 AMG C63 S sedan Past: 2011.5 M3 sedan ZCP
	Appreciate 0 Quote

08-07-2017, 03:54 PM	#4
2bits Private 18 Rep 92 Posts Drives: 09 M3 e90 Join Date: Sep 2009 Location: Seattle iTrader: (1)	If the discs are installed correctly, the vents pull fresh air from the hub area and throw it out the edge. As long as there's enough clearance for the vented air to escape out the disc edge, it will work fine. I have 380's on 18's and there's plenty of clearance.
	Appreciate 0 Quote

08-07-2017, 08:38 PM	#5
roastbeef Lieutenant General 11586 Rep 12,726 Posts Drives: E92 M3 Join Date: Nov 2010 Location: Orange County, CA iTrader: (4)	if you are able to fit a caliper in there, the rotors will have proper ventilation. __________________ Instagram; @roastbeefmike
	Appreciate 0 Quote

08-08-2017, 05:00 AM	#6
Razif Private First Class 29 Rep 151 Posts Drives: Bmw e92 m3 Join Date: Jul 2017 Location: Kuala Lumpur, Malaysia iTrader: (0)	Kulle.
	Appreciate 0 Quote

08-10-2017, 06:52 PM	#7
tlrid3r just another M3 514 Rep 1,150 Posts Drives: e92 M3 Join Date: Dec 2007 Location: San Jose, ca iTrader: (6)	The air enters the rotor from the center and exits at the edge of the rotor. I have that setup and cooling is not affected. __________________ ///M3... Don't want more power, Just want it to turn sharper one step closer each time. -Ohlins TTX Raceline, PolePostions seats, Akrapovic EVO, ARC-8, 1/2 Cage, Seat Delete, Stoptech BBK, solid Subframe and diff bushing, spherical bearing on everything.
	Appreciate 0 Quote

08-16-2017, 06:01 AM	#8
CLUBBER Driven34 989 Rep 143 Posts Drives: '87 M3,'95 M3GT,'00 MC,04 CSL Join Date: Jun 2008 Location: Istanbul / Turkey iTrader: (0) Garage List 2011 BMW M3 [0.00] 1987 E30 M3 [10.00] 1995 BMW M3 GT [0.00] 2004 BMW M3 CSL [10.00]	Might be slightly off topic BUT, could anyone confirm if Brembo 380mm kit would clear OEM 18"s ? __________________ Can, ///My Cars
	Appreciate 0 Quote

08-16-2017, 06:36 PM	#9
Dreamer99 Lieutenant 87 Rep 400 Posts Drives: E92M3 Join Date: Feb 2015 Location: British Columbia iTrader: (1)	I tried the Brembo 380 template with a 15mm spacer in my 219M 18" front wheels and it did not fit.
	Appreciate 0 Quote