Nismo bumper brake duct install
 

I purchased a stillen brake cooling kit but did not want to cut holes In the nismo front bumper. I have a z speed undertray that I have mounted revotech naca ducts into. It has all worked out really well and looks neat.

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That made me slightly horny...
And chance a pebble will be thrown up and go as far as to ding the rotor/get caught between the pad?

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It is always a possibility that a stone could get in but not a huge risk. If you were concerned you could run mesh in the hose as a safety measure.

That's a chance you take with any kit. Even the factory set-ups on other vehicles.


Interesting set-up.

:tup:This set up looks like ones that I have seen on a few Zo6 Corvettes. Look good!!! Very Nice.

Props...great work....!!! Looks pretty clean.

Thank you for posting this. Nicely done.

Love this setup, thank you for posting detailed pictures of the configuration.

screams...I plan to put mines which is in a box in the bumper mouth lip area...

Thinking that this is about perfect for the guys who went to FI and need brake ducts. Now you don't have to worry on how to run your duct hoses with the FI tubing in the front.

The least intrusive setup for the nismo guys, this should become a popular option.

Front Brake NACA Duct
 

Any issues with water being sucked into the brakes?

I've driven in a downpour with my RC ducts. Never had a problem with water.

At some point, I'm stealing this idea.

Yea, I had this idea, but haven't pulled the trigger

Nice job, did U check/know the temp. change?

good setup do you have a link to the naca ducts with brake ducting into it?

^ looks like these?

NACA Brake Ducts for Bumper, Spoiler or Headlight

ok not really a question for the nismo owners, but i'm curious about the non-nismo front bumper...it has these plastic caps that look like potential fog light holes or potential brake duct holes... Does anyone know of people using these as such?

This picture is from a company using them as custom short ram intake holes with plastic tubes that lead back into the engine bay...
http://i1180.photobucket.com/albums/...ps14f5af92.jpg

why would you? dont these run to the brakes?

I've done a trackday that rained most of the day. And drove it home afterwards. And yes, the hoses go to the inside of the rotor.

I just got my set of carbon fiber ducts like Rusty and I am going to try and make a screen cover to avoid the possibility of injesting a rock (for lack of a better term) in the duct.

Once I figure out the the what and the how, I'll post some pictures.

GREAT idea with the undertray though. :tup:

this is a link to the ducts I used, they were the only ones I could find with a rearward facing outlet, the normal style will not work due to space issues.

I have not measured temps but will once I get setup and head to the track.

Revotec NACA Moulded Air Duct 2 Piece - Demon Tweeks

Awesome work. I will be using this setup if I hang onto the nismo. Good stuff.

This is a great idea! I couldn't figure out what to do with my amuse bumper but this might solve that! Does this location provide enough airflow to the brakes? I mean the ones in the grille are forcing the air to go into it as to these are almost just floating above the wind stream. Just a curious thought

A NACA duct moves a lot of air.

I'm sure it does but isn't the air under the car a low pressure zone and the front grille is a high pressure zone. Won't that cause it to not work as well?

There's less air under the car than right in front, but its still going to get a lot of airflow. It won't be as effective as cutting ducts into the bumper, but its a hell of a lot less invasive.

Yeah that's what I was thinking. Now I have a problem I was looking online and there seems to be no suppliers for the exact NACA duct I need in the US like the one bought above^^

Basically I need to find a NACA duct that the outlet is low and not deep and has a 2" outlet for my stillen hose.

Post #22 has a link to plenty that would work. Just buy one of the 3" to 2" reducers. It's on the same page.

^ That was my post. Since then, I've compared OP's vs the ones in the link, not the same dimension. The ones I posted are taller, and I don't know if clearance will be an issue. The ones OP uses are way more expensive and not from US.

I did PM'd OP a while back to see, from his memory, if the ones I posted would fit. Have not gotten a response.

Depending on where you put them, the height may not be an issue. I'm sure some other race parts site has one that fits better, but going from memory yours should work. I'd try it before I spent the coin on the OP's. Whats £45 each translate to in USD? About $80-85 each before shipping?

About 1 GBP to 1.53 USD, so about $69.

http://www.racerpartswholesale.com/category/Naca_Ducts2

Found it on a different site. Not the same dimensions as OP but u can get both with extensions for 60 plus shipping.

^same as the link in post #22. Using the small one, I'll need a little over 4 inches bertical clearance (vs the ones OP posted, much flatter design like you stated).

I may just order those and give it a try. Worst comes to worst I'll bite the bullet.

Hmm yeah I am about to pull the trigger on it but then I noticed this..

Attachment 73268

The bottom side of the amuse bumper is curved and you need 11" of area to mount to I'm not sure if it being curved will work or not.