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Nordring bonnet/hood!

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39 replies to this topic

#1
thehelix112

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http://www.nordring.jp/blog/

Pretty cool.. Looks like it has a gurney, and vents towards the rear on the sides.

Dave 0650e8a602ab2df1b5c86dc9c6532427.jpg
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#2
wspy

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Nice  :thumbup:



#3
Biff_Malibu

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That is super cool. It looks like they're developing a wing as well.

2015 Nissan GT-R NISMO

 


#4
thehelix112

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Also it's made by challenge. Not gunna be cheap, but will be good! Can't wait to see the wing. Wonder if it will be n attack derived?
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#5
Biff_Malibu

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Also it's made by challenge. Not gunna be cheap, but will be good! Can't wait to see the wing. Wonder if it will be n attack derived?


Knowing Nordring, it's at least as good if not better than NISMO's parts.
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2015 Nissan GT-R NISMO

 


#6
ttknf

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http://www.nordring.jp/blog/

Pretty cool.. Looks like it has a gurney, and vents towards the rear on the sides.

Dave 0650e8a602ab2df1b5c86dc9c6532427.jpg

 

 

That is not going to be cheap... Most likely functional though, and great quality.


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#7
VR_power

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IMG_0439.PNG

I think this CAD drawing may not have been completed but I could be wrong. If it is indeed a complete CAD drawing it seems only one side of the hood is ventilated, but I think that's unlikely.

Edited by VR_power, 07 September 2017 - 09:39 PM.

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#8
7racer

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is there a back central vent?

 

also those side vents...there isn't much there on the sides besides the fender and battery and brake compartments right?


In7anity!!


#9
thehelix112

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Gotta be something to it: https://www.instagra.../p/BYwu07WF0jR/

Dave

#10
paparazzi

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also those side vents...there isn't much there on the sides besides the fender and battery and brake compartments right?

 

The position of the side vents are probably don't vent from straight below that location. I'm pretty sure that there are passages under the hood which allow air/heat from different parts of the engine bay to be vented through those vents.

 

I have the Mine's Type II hood which has vents in similar locations and that's how it works (see below)

 

R35_Bonnet_T2_a1000.jpg

R35_Bonnet_T2_b1000.jpg

 

Contrast that with the Top Secret ones which vent directly from underneath the vents.

 

The plus of the Mine's / Nordring design, apart from more efficient cooling and the fact that water running into the vents can be directed (by virtue of the channels) do a safe area to run through the engine bay. Note the weep holes on the Mine's hood.

 

The Top Secret one does not have that and in fact comes with a tray to collect water.


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JDM Mine's dry carbon Spec X 6.0 with genuine Spec-V turbos 
617ft lb and 652whp on MS109E


#11
7racer

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wonder how well that works

 

the thing I worry about the big openings on the hood like my Varis, is that at speed, it seems like air is getting suck into the bay vs out.

...unless you put a big gurney flap there.

 

Just seems like people don't really do aero testing on these.

 

does this work better while moving?


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In7anity!!


#12
ian.r

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Looks interesting. Tho I'm convinced most of those vent systems don't do much in the way they are designed. I recall top secret did some testing on one version with a raised lip in front of the vents that let heat escape from the boundary layer.
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#13
ttknf

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Supposedly, years ago one of the guys at Nismo confirmed that the only vent position that would theoretically have any substantial effect with the GT-R's inherent air flow, is the rear outboard of the hood (where Mine's put their vent, as well as Nordring, Overtake, etc.). The rest of the hood designs are mostly for looks, or just don't have as great as effect until you start modifying other aero on the car in a substantial manner as to change the car's characteristics. 


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#14
7racer

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Supposedly, years ago one of the guys at Nismo confirmed that the only vent position that would theoretically have any substantial effect with the GT-R's inherent air flow, is the rear outboard of the hood (where Mine's put their vent, as well as Nordring, Overtake, etc.). The rest of the hood designs are mostly for looks, or just don't have as great as effect until you start modifying other aero on the car in a substantial manner as to change the car's characteristics.


How do the the factory track cars set up their hoods?

I wouldn't mind the smooth aero and better venting.

However, I do remember that on a cold day at the track with the Varis hood and the rain guard out, the car took a long time to warm up.

With the rain guard on blocking the vent, the car warmed up noticeably quicker.

Is the hood available? Not sure if I am missing it on their website.
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In7anity!!


#15
ttknf

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How do the the factory track cars set up their hoods?

I wouldn't mind the smooth aero and better venting.

However, I do remember that on a cold day at the track with the Varis hood and the rain guard out, the car took a long time to warm up.

With the rain guard on blocking the vent, the car warmed up noticeably quicker.

Is the hood available? Not sure if I am missing it on their website.

 

The only "factory" race cars that have vented hoods, are the GT3 and defunct GT1, both of which have dramatically different aero / cooling characteristics than a stock GT-R.

 

I'd assume Varis designs all their aero to work together since they supply race teams / cars.


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#16
thehelix112

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7racer,

 

No I don't think it's for sale yet, it's been in development for a few months and will hopefully come out soon.

 

Dave


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#17
wspy

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Yeah, from the blog it seems to have been in development since July and should be ready for 'Fitting' end of Sept.

So should be ready by the Salon time  ;)


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#18
jdmrb1

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Can't wait to see how much that thing is going to cost. Any guess? At least 5 to 600,000 yen. 


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#19
thehelix112

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Testing complete: http://www.nordring....m=201709&no=995

 

Some good pics there indicating a couple of good points:

 

1.  The side vents are intended to be functional (strings in the test)

2.  There is a wide centre vent towards the rear of the hood.

3.  It looks like the ducts to cool the turbos are different than their other offering and might be integrated with the hood.

 

Dave


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#20
7racer

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Testing complete: http://www.nordring....m=201709&no=995

 

Some good pics there indicating a couple of good points:

 

1.  The side vents are intended to be functional (strings in the test)

2.  There is a wide centre vent towards the rear of the hood.

3.  It looks like the ducts to cool the turbos are different than their other offering and might be integrated with the hood.

 

Dave

 

I did a google translate on that link, where do they talk about the string test and the rear vent?


In7anity!!





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