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Slippery R30's

Ghostrider
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Ghostrider Grand Master

Ghostrider

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Has anyone really wondered why our R30 Skylines slip through the air so well?

Drag, down force, design etc all go to fuel efficiency, but do you know there is only one (1) Nissan with a better drag coefficient (Cd) than the R30 Skyline.

Cheers, D

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Ghostrider Grand Master

Ghostrider

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Nobody got any ideas????????

I find this amazing!

Just imagine the McLaren F1 has a worse Cd than the R30!

The R30 has a drag coefficient (Cd) of 0.27

The 2007 GTR has a drag coefficent (Cd) of 0.27

The 2010 GTR has a 1/100th of a point better Cd at 0.26 and is the slipperiest Nissan ever built.

To put this figure into a bit of perspective, the R32 GTR has a Cd of 0.40, the R33 GTR 0.35, 280ZX @ 0.385, 1983 Z31 300ZX has 0.30, 1989 Z32 has 0.32, G37 Infinity coupe has 0.31 and both 350 & 370Z 's 0.30

Cheers, D

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Ghostrider Grand Master

Ghostrider

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Better than you.LOL

I said RMR, ie, Hatchback. It aint an R30.:pirate:

Humble apologies my dear friend, but my wind tunnel test results don't differenciate between an EDR, KHR, RMR, or any other derivative, because I guess at the end of the day THEY ARE ALL R30's or have I got this wrong to :cheers:

Whilst I'm here does anyone know why the 2010 GTR has a slightly different Cd to it's predecessor?

Cheers, D

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Ghostrider Grand Master

Ghostrider

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what's the CD for R34 GTR ... i am guessing not very good number

Just off the top of my head I would assume it would be quite reasonable, but I will check on it to confirm, but as the R34 was designed off the R30 I would think it might be quite good as I said.

Cheers, D

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  • 5 months later...
hamburgerdood Newbie

hamburgerdood

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Guys,

The Cd number is relevant, but it's only part of the story...

The actual drag force is calculated by D = Area x Cd x 1/2 * rho * (velocity)**2

rho is the air density and velocity squared is just that, speed mulitplied by itself.

The half rho v squared part will be the same no matter what the vehicle, so the difference in drag force comes down to Cd mulitplied by frontal area.

The McLaren has less frontal area than a Skyline R30 and so it will have a lower total drag force.

cheers,

Howard.

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66yostagea Grand Master

66yostagea

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I hear ya hugh....

I always felt after 160km my old hatch would just nearly roll to 200... (off the dial and then some...)

shit i miss that car...

It will and I do too. Miss it.

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