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cd

From the Technical section of this website (www.gtr.co.uk):-

The R33 has a Cd of 0.35.

The four way adjustable rear spoiler gives verall Cd of 0.39 with 18o of wing! (0.37 at 12o and 0.36 at 6o).

I've never seen the R34s Cd written down, but I've seen a graph that implies that it is the same as the R33 but that the wing produces more downforce for the same drag.

(I don't believe this however)
 

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possible!

reduse parasitic drag on the wing leaving only indused drag!

its probebly cos of the way it split

eg look at f1 cars
 

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oh

as u put it like that

i dont see how eithier
does the 33 have suce good air flow under the car as the 34
 

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gtr dvd

plase tell me more where did you buy this and is it in english

cheers ,:)
 

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Right here is what I found out from the DVD:

R32: Cd 0.40
R33: Cd 0.35

R34:(with the 4 spoiler settings)

Deg Cd CLF CLR
0 0.36 0.01 -0.06
10 0.37 0.02 -0.11
20 0.38 0.04 -0.17
30 0.40 0.05 -0.20

GU5I 80Y...the DVD is a compilation of tests carried out by the Best Motoring crew. Its in Japanese and with all features counted it lasts around 3 hours. A must-have to say the least. I think Shin at Prospec can get them from Japan
 

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Discussion Starter · #10 ·
Thanks Guy's

Dino,

Do your sources also show what the frontal area of the cars are.

Once we have the frontal area it should be possible to calculate what the forces acting against the car are and estimate maximum speed against BHP for each model.

Thanks

Hugh
 
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