apex gt4 brake duct install - Page 2

MaxL · 10-28-2011, 09:53 AM

Quote:

Originally Posted by chriszeh

iTs addressed in this thread. My intention from the start was to create the system in 2 parts, from the undertray to the inner fender, and from the inner fender to the backing plates. If it was all one system my brakes would work like crap in the winter because couldn't generate any heat and I wouldn't stop. This way I can remove the second section for winter and non track use. I have the parts to complete the system but am going to run as is first and may not run the second half if it isn't needed.

Got it. Please post the second part design/pics once it's done. The first part looks good and cost-efficient.

1MOREMOD · 10-28-2011, 09:54 AM

Thanks.

veightkiller · 10-28-2011, 11:17 PM

Looks good man, nicely done.

aus · 11-03-2011, 07:31 PM

Great job. Thanks.
Any pics of the tubing from the under tray to the fender liner? Was that short run in the pic all you needed?

1MOREMOD · 11-03-2011, 08:26 PM

Quote:

Originally Posted by aus

Great job. Thanks.
Any pics of the tubing from the under tray to the fender liner? Was that short run in the pic all you needed?

yep its a pretty short piece needed. i used about 1 and a 1/2 feet long or so but the distance is shorter than that just the turns in there wanted a little extra. if you look at the picture of the undertray the tubing exit in the fender liner is just passed the point where it passes through the hangers. the lower bolt in the fender well goes in the inner most tab on the undertray in that picture.

Ateam · 11-04-2011, 02:04 AM

OEM rotors do not need any heat to "work" The colder the better for stock rotors as heat will obviously cause them to not work. A tiny air duct into the brakes will do nothing as far as making it "too cold" So if anyone else is considering this I do not think that two-part system is at all necessary. Only certain racing brake setups made of carbon require heating up. Steel rotors require absolutely no heat to work perfectly

1MOREMOD · 11-04-2011, 09:11 PM

The system may be run in the future on a bbk, running both parts would limit my turning radius and be a pain for regular street driving as it is 3 inch where most are 2.5. The 3 inch duct will provide a 50 percent increase in air flow compared to a 2.5 inch duct so should give some significant cooling.

Team Plutonium · 11-05-2011, 09:30 AM

That's pretty awesome! Nice work!

STALKER · 11-05-2011, 10:32 AM

Great work!!
Looking forward to hearing your full review out on track.
I wonder how much more cooling the brakes effectively get without the backing plates??

1MOREMOD · 11-06-2011, 08:50 PM

Quote:

Originally Posted by STALKER

Great work!!
Looking forward to hearing your full review out on track.
I wonder how much more cooling the brakes effectively get without the backing plates??

Not sure, figured it couldn't hurt. Ran today at the track. Moring temps were much cooler than usual ended up about 50 out. I usually have to set my front starting pressure lower than my rears to achieve good hot pressure of 40. Today set my fronts at 33 like usual and they weren't getting up to full pressure so the ducts were cooling my fronts. Not definitive evidence but seems the ducts cooled my tires quite a bit, hopefully did the same for rotors.

1MOREMOD · 04-04-2012, 12:37 AM

update. seems to be working well. also ended up removing the dust shields so the air flow has a direct path to the back side of the rotors for better cooling. still no warm track days so hard to say but im pleased with the outcome.

edwinm3 · 04-11-2012, 04:50 PM

good work

10-28-2011, 09:54 AM	#24
1MOREMOD Major General Drives: at a moderate pace Join Date: Mar 2009 Location: garage Posts: 6,520 iTrader: (3)	Thanks. __________________ 02 Tiag e46 M3\|6MT\|GC plates\|MCS c.o.\|GC race control arms\|GC bushings & bearings\|BW eng. & tran. mounts\|subframe kit\|BW race shifter\|BW Jaffster knob\|Euro header\|Eisenmann sport\|K&N c.a.i.\|Seibon CF hood\|CSL bumper\|CSL brakes\|RS19s\|SS lines\|half cage\|Recaro profi\|Profi 2 harness\|race pulleys\|BMWpedals\|Apex studs\|1995 Ford Probe gt chump car\|

11-03-2011, 07:31 PM	#26
aus Major General Drives: M3 Join Date: Jul 2005 Location: Seal Beach, CA Posts: 6,177 iTrader: (5)	Great job. Thanks. Any pics of the tubing from the under tray to the fender liner? Was that short run in the pic all you needed? __________________ Let me get this straight... You are swapping out parts designed by some of the top engineers in the world because some guys sponsored by a company told you it's "better??" But when you ask the same guy about tracking, "oh no, I have a kid now" or "I just detailed my car." or "i just got new tires."

11-04-2011, 09:11 PM	#29
1MOREMOD Major General Drives: at a moderate pace Join Date: Mar 2009 Location: garage Posts: 6,520 iTrader: (3)	The system may be run in the future on a bbk, running both parts would limit my turning radius and be a pain for regular street driving as it is 3 inch where most are 2.5. The 3 inch duct will provide a 50 percent increase in air flow compared to a 2.5 inch duct so should give some significant cooling. __________________ 02 Tiag e46 M3\|6MT\|GC plates\|MCS c.o.\|GC race control arms\|GC bushings & bearings\|BW eng. & tran. mounts\|subframe kit\|BW race shifter\|BW Jaffster knob\|Euro header\|Eisenmann sport\|K&N c.a.i.\|Seibon CF hood\|CSL bumper\|CSL brakes\|RS19s\|SS lines\|half cage\|Recaro profi\|Profi 2 harness\|race pulleys\|BMWpedals\|Apex studs\|1995 Ford Probe gt chump car\| Last edited by 1MOREMOD; 11-04-2011 at 09:41 PM.

11-05-2011, 09:30 AM	#30
Team Plutonium Major General Drives: 911 Join Date: Dec 2007 Location: Upstate Posts: 8,503 iTrader: (1)	That's pretty awesome! Nice work! __________________ Gone... ESS VT2-625 \| ESS Tune \| M24 Oil Cooler \| Brembo 380mm BBK \| Dinan 4.10 Diff \| KW Variant 3 Coilovers \| Dinan Camber Plates \| Dinan Strut Tower Braces \| Dinan X-Pipe \| Akrapovic Exhaust \| Vorsteiner GTS3 Bumper \| Varis System One Diffuser \| OEM Performance Spoiler \| Stack Gauges \| GTS Door Sills \| Volk TE37 \| Falken Azenis RT615K 275/315 \| Pulled Fenders \| Turner Stud Kit \| OMP ARS Racing Seats New: 991C2S

11-05-2011, 10:32 AM	#31
STALKER Brigadier General Drives: 2008 E90 M3 Join Date: Feb 2009 Location: Toronto, ON Posts: 3,408 iTrader: (5)	Great work!! Looking forward to hearing your full review out on track. I wonder how much more cooling the brakes effectively get without the backing plates?? __________________ 2008 AW/FR E90 M3-SOLD 2013 991 C4S-Produced, but not delivered.

10-28-2011, 11:17 PM	#25
veightkiller Brigadier General Drives: e90 335i Join Date: Dec 2007 Location: Vancouver,B.C Posts: 4,145 iTrader: (3)	Looks good man, nicely done.

11-04-2011, 02:04 AM	#28
Ateam Banned Drives: M3 Join Date: Sep 2011 Location: USA Posts: 1,111 iTrader: (0)	OEM rotors do not need any heat to "work" The colder the better for stock rotors as heat will obviously cause them to not work. A tiny air duct into the brakes will do nothing as far as making it "too cold" So if anyone else is considering this I do not think that two-part system is at all necessary. Only certain racing brake setups made of carbon require heating up. Steel rotors require absolutely no heat to work perfectly

04-04-2012, 12:37 AM	#33
1MOREMOD Major General Drives: at a moderate pace Join Date: Mar 2009 Location: garage Posts: 6,520 iTrader: (3)	update. seems to be working well. also ended up removing the dust shields so the air flow has a direct path to the back side of the rotors for better cooling. still no warm track days so hard to say but im pleased with the outcome. __________________ 02 Tiag e46 M3\|6MT\|GC plates\|MCS c.o.\|GC race control arms\|GC bushings & bearings\|BW eng. & tran. mounts\|subframe kit\|BW race shifter\|BW Jaffster knob\|Euro header\|Eisenmann sport\|K&N c.a.i.\|Seibon CF hood\|CSL bumper\|CSL brakes\|RS19s\|SS lines\|half cage\|Recaro profi\|Profi 2 harness\|race pulleys\|BMWpedals\|Apex studs\|1995 Ford Probe gt chump car\|

04-11-2012, 04:50 PM	#34
edwinm3 Captain Drives: 2008 JEREZ BLACK M3 Join Date: Nov 2011 Location: Doral Posts: 762 iTrader: (2)	good work __________________ AA Exhaust, AA X Pipe, AA SSK, AA Geen Air filter, AA Pulley, AA Tune

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