Making Nismo ducts

Rusty · 07-31-2012, 12:53 AM

Here's the factory Nismo brake ducts that list fir $612.00 each. Also a 4" to 2" reducer that I have to machine so that it slides inside of the duct to shorten the overall length of it.

ChrisSlicks · 07-31-2012, 06:38 AM

4" duct is pretty massive, 4x the air flow vs 2" duct. If you want to make the most of it you could do a 4" to 2x 3" splitter and produce an alternate hub flange that accepts 2x3" (hardcore) or direct one hose to cool the brake caliper.

Teams that run multiple brake ducts to the rotor usually just block one off if they are running at a track that isn't that demanding on brakes in order to get the temperatures into the ideal zone.

07-31-2012, 06:38 AM	#2 (permalink)
ChrisSlicks A True Z Fanatic Join Date: Mar 2009 Location: North East Posts: 6,203 Drives: 09 370Z Sport M6 Rep Power: 655	4" duct is pretty massive, 4x the air flow vs 2" duct. If you want to make the most of it you could do a 4" to 2x 3" splitter and produce an alternate hub flange that accepts 2x3" (hardcore) or direct one hose to cool the brake caliper. Teams that run multiple brake ducts to the rotor usually just block one off if they are running at a track that isn't that demanding on brakes in order to get the temperatures into the ideal zone. __________________ Hotchkis ARB \| Stillen CAI \| Art Pipes \| Berk CBE \| Stillen AP Racing Brakes \| AE Performance Oil Cooler \| BC Racing ER Coilovers \| Doran Control Arms

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