Jump to content
SAU Community

Recommended Posts

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

Link to comment
https://www.sau.com.au/forums/topic/371296-slippery-r30s/
Share on other sites

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

Link to comment
https://www.sau.com.au/forums/topic/371296-slippery-r30s/#findComment-5926100
Share on other sites

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

Link to comment
https://www.sau.com.au/forums/topic/371296-slippery-r30s/#findComment-5928154
Share on other sites

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

Link to comment
https://www.sau.com.au/forums/topic/371296-slippery-r30s/#findComment-5928161
Share on other sites

  • 5 months later...

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.

Link to comment
https://www.sau.com.au/forums/topic/371296-slippery-r30s/#findComment-6182904
Share on other sites

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.

Link to comment
https://www.sau.com.au/forums/topic/371296-slippery-r30s/#findComment-6183093
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now


  • Latest Posts

    • I'd ask the shop what they used and use that. Mixing coolants is sometimes OK, sometimes not, and you have know the details of each coolant to know whether it's a good idea or not.
    • Is it alright to top up with just another green coolant?
    • thanks GTSboy. My confusion at the moment is i am trying to locate the ignition, ECU battery power and the ECU negative The closest thing i can find is the for the S15 on Page 8 of the Wiring Specialties web page https://drive.google.com/file/d/0B9F33_M_GgENQnZ6STMxVmVNd1E/view?resourcekey=0-eZ4nNRwRoqa1qvKlWWHm8A I cannot find the same diagram for the R33 RB25DET Series 2 dash plug pin out.... Do you know what the Pins? or know where i can find the same pinout diagram for the RB dash plug? Thanks for the advice on the box... i like a 6 speed so might be on the lookout or the box now.. a topic of discussion for another post...
    • Will have a look at that. I cant see any leaks 
    • Put another overflow bottle (ie, a 1.25 coke bottle or similar) under the overflow hose and see if it is being pushed out there or if it is disappearing into the engine.
×
×
  • Create New...