revzosport brake cooling ducts

trackm4 · 01-24-2017, 07:16 AM

*Disclaimer - this is my personal experience, your mileage may very*

just a short post for others considering the revzosport brake cooling ducts. I put mine on a few weeks ago and the actual duct pipes were super-low to the ground (only 1" clearance to the road) and I had a feeling they won't survive a trackday.

That's exactly what happened. The left side got completely shredded over the turn 6 dip and rumble stripes at laguna. and then the right side got torn up at the corkscrew rumble strips. Taken them off. Disappointing.

you can see how low they're hanging in this picture (right side partially ripped already... when pic was taken)

JamesGames · 01-24-2017, 01:36 PM

Those are pricey too, sorry to hear. Are you going to keep the part that attaches to the hub and reroute your air ducts?

redpriest · 01-24-2017, 03:14 PM

That's pretty disappointing. :/

trackm4 · 01-24-2017, 09:52 PM

Quote:

Originally Posted by JamesGames

Those are pricey too, sorry to hear. Are you going to keep the part that attaches to the hub and reroute your air ducts?

.. I bought them used for < half price so I'm not too bummed.. It was a price I figured I can try it and see how they work.

For those who are wondering I am not a noob mechanic and tried several different combination of hose routing and the only way it worked was how it was pictured on the revzosport install pages.. all other options either pinched the hose or i would have to shorten the hose length which means turning radius goes to shit.

not really the product fault.. stupid ///m division should have thought of brake cooling ... the m4 underbody and front bumper has zero room for a brake duct right now without major surgery..

redpriest · 01-24-2017, 10:06 PM

You might not need the ducting with the essex AP Racing BBK. The vanes on the 372 mm kit especially do a fantastic job keeping the fronts cool.

trackm4 · 01-24-2017, 10:07 PM

Quote:

Originally Posted by redpriest

You might not need the ducting with the essex AP Racing BBK. The vanes on the 372 mm kit especially do a fantastic job keeping the fronts cool.

Yup - that's the plan.. right now pretty happy with stock calipers and Pagid RS29 .... in a few months I'll get the Essex AP Racing kit (saving $$$ for it)

Flying Low · 06-07-2017, 06:25 PM

How much did you lower your car? With the roll bar, this looks like a very serious track car. Are the ducts in this kit 2.5 inches in diameter? I need better brake cooling so as a first resort, I will probably do similar to your car. If the ducts are too vulnerable, then maybe the rotors that flow cooling air better. And as a last resort, a BBK.

Flying Low · 06-27-2017, 05:39 PM

I tried this setup on my M4 at Laguna Seca last Friday. Air scoop is 3" X 9". Hose is 2.5" in diameter but squeezed down to about 2" high and 3" wide for more clearance under the anti-roll bar and then back until the hose has to change direction sharply, where I let it be 2.5 inches round again all the way to the disc backing plate. The front of the car is dropped only about 1/2" and the air inlets have 3.5" clearance to the ground. But at the anti-roll bar and behind, there is only about 3" clearance to ground. No speed bumps allowed!

There was no rubbing at Laguna Seca. The hoses and air scoops never touched the ground and there were no wear marks or kinking anywhere on the hoses as they snake up to the backing plate.

But the wheels and brakes still got very hot, front and rear, but no fade at all even though I'm running 285 and 315 hoosiers. I need to get some temperature paint to see just how hot the calipers are getting. The caliper dust seals were replaced under warranty just prior to installing this setup. I may have to go to rear cooling ducts or BBK front and rear. But the front ducts must have helped some. Laguna Seca is very hard on brakes if you're going fast.

XentSS2 · 07-14-2017, 12:49 AM

Just to let u guys know as well, i went with the revozport stage 1 aero package. The front lip didnt hold up well when i was driving on the highway at about 200kph. My car comes with the adaptive suspension and it was set for Sports plus. The lip broke, flew underneath the rear of my car, and nearly hit the car that was following me.

when i went back to the garage for some minor aesthetic repairs, we got some interesting answers from them as well.

01-24-2017, 07:16 AM	#1
trackm4 Petrolhead 126 Rep 307 Posts Drives: MW M4 Join Date: Nov 2010 Location: Bay Area iTrader: (0)	revzosport brake cooling ducts - didn't hold up at laguna Disclaimer - this is my personal experience, your mileage may very just a short post for others considering the revzosport brake cooling ducts. I put mine on a few weeks ago and the actual duct pipes were super-low to the ground (only 1" clearance to the road) and I had a feeling they won't survive a trackday. That's exactly what happened. The left side got completely shredded over the turn 6 dip and rumble stripes at laguna. and then the right side got torn up at the corkscrew rumble strips. Taken them off. Disappointing. you can see how low they're hanging in this picture (right side partially ripped already... when pic was taken)
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01-24-2017, 01:36 PM	#2
JamesGames Major 1326 Rep 1,481 Posts Drives: E60 550i\|F82 M4\|F48 X1\|VA STi Join Date: Apr 2012 Location: SOCAL iTrader: (0)	Those are pricey too, sorry to hear. Are you going to keep the part that attaches to the hub and reroute your air ducts?
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01-24-2017, 03:14 PM	#3
redpriest Colonel 2147 Rep 2,527 Posts Drives: 2011 M3/Porsche 992 GT3RS Join Date: Apr 2014 Location: Bay Area, CA iTrader: (0) Garage List 2024 Porsche 911 GT3RS [0.00] 2021 Porsche 718 Sp ... [0.00] 2021 Mazda Miata MX-5 [0.00] 2006 BMW M3 [0.00] 2011 BMW M3 [10.00]	That's pretty disappointing. :/ __________________ '06 BMW M3 ZCP 6MT \| JRZ RS Pro + Hyperco 650/750 \| Epic Tune \| Brembo 355mm BBK \| too many to list '11 BMW M3 ZCP DCT \| Akra Evolution \| Eventuri intake \| MCS 3-way \| 4.6L Carbahn S65 \| Zebulon Aero \| AP Racing Radi-CAL BBK by Essex \| 305/645-18 Pirelli DHB Porsche 992 GT3, 991.2 GT3RS, 718 Spyder instagram.com/titomanlio
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01-24-2017, 10:06 PM	#5
redpriest Colonel 2147 Rep 2,527 Posts Drives: 2011 M3/Porsche 992 GT3RS Join Date: Apr 2014 Location: Bay Area, CA iTrader: (0) Garage List 2024 Porsche 911 GT3RS [0.00] 2021 Porsche 718 Sp ... [0.00] 2021 Mazda Miata MX-5 [0.00] 2006 BMW M3 [0.00] 2011 BMW M3 [10.00]	You might not need the ducting with the essex AP Racing BBK. The vanes on the 372 mm kit especially do a fantastic job keeping the fronts cool. __________________ '06 BMW M3 ZCP 6MT \| JRZ RS Pro + Hyperco 650/750 \| Epic Tune \| Brembo 355mm BBK \| too many to list '11 BMW M3 ZCP DCT \| Akra Evolution \| Eventuri intake \| MCS 3-way \| 4.6L Carbahn S65 \| Zebulon Aero \| AP Racing Radi-CAL BBK by Essex \| 305/645-18 Pirelli DHB Porsche 992 GT3, 991.2 GT3RS, 718 Spyder instagram.com/titomanlio
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06-07-2017, 06:25 PM	#7
Flying Low Private First Class 85 Rep 120 Posts Drives: 2002 M3, 2003 M3, 2015 M4 Join Date: Jan 2015 Location: Santa Rosa, CA and St George, UT iTrader: (1)	How much did you lower your car? With the roll bar, this looks like a very serious track car. Are the ducts in this kit 2.5 inches in diameter? I need better brake cooling so as a first resort, I will probably do similar to your car. If the ducts are too vulnerable, then maybe the rotors that flow cooling air better. And as a last resort, a BBK. __________________
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06-27-2017, 05:39 PM	#8
Flying Low Private First Class 85 Rep 120 Posts Drives: 2002 M3, 2003 M3, 2015 M4 Join Date: Jan 2015 Location: Santa Rosa, CA and St George, UT iTrader: (1)	I tried this setup on my M4 at Laguna Seca last Friday. Air scoop is 3" X 9". Hose is 2.5" in diameter but squeezed down to about 2" high and 3" wide for more clearance under the anti-roll bar and then back until the hose has to change direction sharply, where I let it be 2.5 inches round again all the way to the disc backing plate. The front of the car is dropped only about 1/2" and the air inlets have 3.5" clearance to the ground. But at the anti-roll bar and behind, there is only about 3" clearance to ground. No speed bumps allowed! There was no rubbing at Laguna Seca. The hoses and air scoops never touched the ground and there were no wear marks or kinking anywhere on the hoses as they snake up to the backing plate. But the wheels and brakes still got very hot, front and rear, but no fade at all even though I'm running 285 and 315 hoosiers. I need to get some temperature paint to see just how hot the calipers are getting. The caliper dust seals were replaced under warranty just prior to installing this setup. I may have to go to rear cooling ducts or BBK front and rear. But the front ducts must have helped some. Laguna Seca is very hard on brakes if you're going fast. Attached Images __________________
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07-14-2017, 12:49 AM	#9
XentSS2 Enlisted Member 96 Rep 42 Posts Drives: Silverstone II F80 M3 Join Date: Mar 2016 Location: Singapore iTrader: (0)	Just to let u guys know as well, i went with the revozport stage 1 aero package. The front lip didnt hold up well when i was driving on the highway at about 200kph. My car comes with the adaptive suspension and it was set for Sports plus. The lip broke, flew underneath the rear of my car, and nearly hit the car that was following me. when i went back to the garage for some minor aesthetic repairs, we got some interesting answers from them as well.
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