Slippery R30's

[Ghostrider]

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

[ydr030]

had no idea! tell me more! im guesing u are talking about iron mask fronts thou ?

[Ghostrider]

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

[mastadd]

I think the R31 S2 would have about a 0.90 CD

[66yostagea]

Whats the figure for an 84 RMR30? I was under the impression they were VERY slippery.

[Ghostrider]

Whats the figure for an 84 RMR30? I was under the impression they were VERY slippery.

You bloody old fart ......... cant you read either lol

[maclarenf1]

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

[ydr030]

interesting..... not bad 4 a roof tile lol

[works 510]

a coupe looks like a door wedge

[66yostagea]

You bloody old fart ......... cant you read either lol

Better than you.LOL

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

[Factory 5]

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...

[Ghostrider]

Better than you.LOL

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

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

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

Cheers, D

[Ghostrider]

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

[Ghostrider]

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

R34 GTR Cd is 0.34

[hamburgerdood]

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.

[66yostagea]

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.

[Factory 5]

My new project seems like a totally different chassis though... Non power steer and 5 speed, its a world of difference

More 'fun' than 'cruise'...

Might start a project thread sometime