Nissan FINALLY has a 350Z brake duct!
02-08-2011, 12:03 PM
#121
https://my350z.com/forum/members/732...e-ducting.html
If the ducts GrandAm350 were available back them I would have bought them in a second. Would have saved me a few hours work.
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KingBaby (06-21-2016)
02-08-2011, 12:19 PM
#122
I don't think that's going to be very effective.
Just common sense that you're not going to get much cooling that way because it's a low pressure zone.
For it to be effective, you're going to need to get the bottom edge down into the airflow, to collect air comeing straight at it.
A NACA duct is designed to pull air from a high pressure zone, not a low pressure zone.
I'll run this by the Motorsports guys and see if they've seen it in any catalog offered by NISMO in the US.
Just common sense that you're not going to get much cooling that way because it's a low pressure zone.
For it to be effective, you're going to need to get the bottom edge down into the airflow, to collect air comeing straight at it.
A NACA duct is designed to pull air from a high pressure zone, not a low pressure zone.
I'll run this by the Motorsports guys and see if they've seen it in any catalog offered by NISMO in the US.
Last edited by GrandAm350; 02-08-2011 at 12:32 PM.
02-08-2011, 12:21 PM
#124
I don't think that's going to be very effective.
With all due respect, and this isn't meant to offend, but that is a solution designed to seperate people from their money, not to provide brake cooling. Just common sense that you're not going to get much cooling that way because it's a low pressure zone.
For it to be effective, you're going to need to get the bottom edge down into the airflow, to collect air comeing straight at it.
A NACA duct is designed to pull air from a high pressure zone, not a low pressure zone.
I'll run this by the Motorsports guys and see if they've seen it in any catalog offered by NISMO in the US.
With all due respect, and this isn't meant to offend, but that is a solution designed to seperate people from their money, not to provide brake cooling. Just common sense that you're not going to get much cooling that way because it's a low pressure zone.
For it to be effective, you're going to need to get the bottom edge down into the airflow, to collect air comeing straight at it.
A NACA duct is designed to pull air from a high pressure zone, not a low pressure zone.
I'll run this by the Motorsports guys and see if they've seen it in any catalog offered by NISMO in the US.
02-08-2011, 12:32 PM
#125
There are two reasons for doing something: engineering reasons and rules reasons.
SCCA does not allow addition openings in the front bumper for cooling ducts, so this might have been the only solution they could get approved in class. It's better than nothing.
And that might explain why the 350Zs overheat their brakes in SCCA racing.
But thanks for setting me straight.
We never considered that route because we were allowed to go to the front bumper in front of the radiator.
02-08-2011, 12:32 PM
#126
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Those ducts mount to the side of theNissan Emblem close to the headlight on the front bumper, typically the ducts are used to provide cool air to the intake, but the factory aero on the car makes them pointless.
02-08-2011, 03:08 PM
#128
Correct. As mentioned above, you cannot cut any openings in the fender and/or remove lights, turn signals, or reflectors. Those items all have to be in place and operable. Even the mods I did above to the finisher panels behind the grill are questionable per the SCCA T2 rules. Remember, the Touring category is essentially the same as Showroom Stock - with a few performance equalizer mods allowed.
02-08-2011, 10:47 PM
#129
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Then I stand corrected! Not too big enough to admit when I'm wrong. Nismo does sell it! My appologies to our friend in Sweden!
There are two reasons for doing something: engineering reasons and rules reasons.
SCCA does not allow addition openings in the front bumper for cooling ducts, so this might have been the only solution they could get approved in class. It's better than nothing.
And that might explain why the 350Zs overheat their brakes in SCCA racing.
But thanks for setting me straight.
We never considered that route because we were allowed to go to the front bumper in front of the radiator.
There are two reasons for doing something: engineering reasons and rules reasons.
SCCA does not allow addition openings in the front bumper for cooling ducts, so this might have been the only solution they could get approved in class. It's better than nothing.
And that might explain why the 350Zs overheat their brakes in SCCA racing.
But thanks for setting me straight.
We never considered that route because we were allowed to go to the front bumper in front of the radiator.
02-10-2011, 04:41 AM
#130
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Does anyone have experience with these from nissanraceshop.com:
Nismo GT2 brake duct kit with NACA ducts...$115/set.
I came across them via a google search for Nismo 350Z brake duct. Clearly a more simplified design, but much more affordable for the hobbiest track-goer.
I'm trying to outweigh the benefits of buying the still affordable Nismo CF duct kit or making my own of a similar design (which is obviously more effort on my part, but it wouldnt cost me much more than sourcing the hoses), but with this other kit as an option, $115 for an effective brake cooling setup is hard to pass up.
Nismo GT2 brake duct kit with NACA ducts...$115/set.
I came across them via a google search for Nismo 350Z brake duct. Clearly a more simplified design, but much more affordable for the hobbiest track-goer.
I'm trying to outweigh the benefits of buying the still affordable Nismo CF duct kit or making my own of a similar design (which is obviously more effort on my part, but it wouldnt cost me much more than sourcing the hoses), but with this other kit as an option, $115 for an effective brake cooling setup is hard to pass up.
02-10-2011, 05:38 AM
#132
Does anyone have experience with these from nissanraceshop.com:
Nismo GT2 brake duct kit with NACA ducts...$115/set.
I came across them via a google search for Nismo 350Z brake duct. Clearly a more simplified design, but much more affordable for the hobbiest track-goer.
I'm trying to outweigh the benefits of buying the still affordable Nismo CF duct kit or making my own of a similar design (which is obviously more effort on my part, but it wouldnt cost me much more than sourcing the hoses), but with this other kit as an option, $115 for an effective brake cooling setup is hard to pass up.
Nismo GT2 brake duct kit with NACA ducts...$115/set.
I came across them via a google search for Nismo 350Z brake duct. Clearly a more simplified design, but much more affordable for the hobbiest track-goer.
I'm trying to outweigh the benefits of buying the still affordable Nismo CF duct kit or making my own of a similar design (which is obviously more effort on my part, but it wouldnt cost me much more than sourcing the hoses), but with this other kit as an option, $115 for an effective brake cooling setup is hard to pass up.
how about, well they gonna fit the CuztomZ undertray panel?
Last edited by f-350z; 02-10-2011 at 02:22 PM.
02-10-2011, 05:58 AM
#133
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As for the cooling question...the hoses would have to be supplied by the owner of the car. The kit does not come with hoses, but it looks like it is meant to use 2.5" hose. Plus the kit comes with NACA ducts that mount somewhere (on the undertray I would guess), so connect the hoses between the NACA ducts and the brake ducts and viola...cool air for your brakes.
02-10-2011, 07:25 AM
#135
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My bad, I overlooked the hoses part, it does make for a sweet deal. Right now I am trying to get more info and pictures of the system via email. I'll update as I learn more. I might just forgo waiting and order the kit, but I would still like more info and its not like I need them now.
02-10-2011, 09:58 AM
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Looks to me like it is just applying air to one side of the rotor with a little bit of it being pulled to the center of the rotor. It also looks to use the dust shield mounting points if I were to guess, so it would entirely replace the OEM dust shield.
I contacted them hoping for more info and detailed pictures, but no luck yet. I'll try to give them a phone call shortly.
Last edited by idrive_MD; 02-10-2011 at 10:35 AM.