ZG intake winglets?

[Riceburner]

Does anyone know what purpose these winglets serve on the G-nose?

[Quandary]

Did a google search and found nothing. But looks like it could be an addition to the fender panel in front of the wheel arch.

[benny]

from what i understand they sit on the flat part on the "mouth" of the gnose to direct air to the radiator

[Riceburner]

yep like this...... but whats the purpose?

[Quandary]

from what i understand they sit on the flat part on the "mouth" of the gnose to direct air to the radiator

 

Looks right. I saw a pic of it on HybridZ. I never heard much about these things before.

[Riceburner]

I was thinking maybe they act as a blanking plate and stall air across the rad, for use on race cars maybe?

[Quandary]

Damn got me reading about winglets now. If the winglets on aircraft are anything to go by it might be used on the Gnose to reduce wind noise.

[HS30-H]

They are known as 'Air Con Ducts' in Japan.

 

Nissan started adding them to Fairlady 240ZG models after it was found that - in certain circumstances - cars that were fitted with Air Con were not getting enough air to the air con rad and coolant rad. The ducts merely channeled cooling air to make it more effective.

 

The very first ( 'Zenki' ) factory Fairlady 240ZG models didn't have them, but they were added soon after and most later replacement / spare lower panels were supplied with the ducts by default. One of my 240ZGs doesn't have them, but the other ( slightly later production date ) does. 

[Riceburner]

Well I wasn't even close, thanks guys

[gav240z]

The very first ( 'Zenki' ) factory Fairlady 240ZG models didn't have them, but they were added soon after and most later replacement / spare lower panels were supplied with the ducts by default. One of my 240ZGs doesn't have them, but the other ( slightly later production date ) does. 

 

Alan I've seen the term 'Zenki' and 'Kouki' (sometimes 'Chuuki') used a lot when referring to Japanese cars and I assume this means Early / Later models is that correct?

 

 

[HS30-H]

Alan I've seen the term 'Zenki' and 'Kouki' (sometimes 'Chuuki') used a lot when referring to Japanese cars and I assume this means Early / Later models is that correct?

 

Hi Gav,

Yes, spot on. Roughly, 'Zenki' implies earliest / former, 'Chuki' or 'Chuuki' implies mid-term, and 'Kouki' implies latter / final. It's a bit more complicated than that ( Japanese always is in my experience.... ) but that's generally the way that the terms are used in Japanese car business vernacular.

 

It's not all that common to use it in connection with late Sixties / early Seventies stuff really. It's a bad habit I've picked up, and I must try to pack it in..... 

[dat2kman]

Looking at the design, and the positioning, these will create turbulence to airflow, thus delaminating the stream, slowing it, which in turn stops air from "rushing" through. By slowing air its cooling effect will be greater, hence the later fitment purpose for aircon use.

Also reckon it may have been discovered rhat in summer events in Japan, the cars ran hot. I had heard that some Aussie g nose fitted cars can run hot, but as these arent factory and i dont know what was fitted re ducting from behind grill leading to rad core, i have no idea.

 

I have done a bit of thin ally flat panel ducting to a race car, that has a small stock rad with great effect ( datsun 2000) engine puts out huge heat, due to its capability to develop up to 243 hp, engine bay is not aero friendly, so by running flat ally panels from grille opening, flareing out to rad core, ie a revetse funnel, this keeps all air concentrated, and allows it to slow down.

 

These winglets, could aslo be known as "canard wings" these are used on outside of body work to create negative air pressure zones, often in front of front wheels to aid brake cooling ( helps to"suck"air out of wheel centre)