Anyone know the drag coeffiecent on the 4th gen? - Honda Prelude Forum

belizeprelude · 07-10-2004, 09:52 AM

Does anyone know the drag coefficent on a stock prelude. (wings,spoilers, body kits, etc... cause more drag)

neldogg · 07-10-2004, 11:53 AM

.33 and actually the stock wing helps the drag c/f, it stops eddies from trailing off the trunk

Sonik_Fury · 07-10-2004, 12:17 PM

I'm sure some bodykits reduce the drag coefficient, I KNOW the mugen one does, they're the only ones that are actually wind tunnel tested.

jsmooney · 07-10-2004, 03:27 PM

how does this drag coefficiant compare to other cars?

nickprelude · 07-10-2004, 04:00 PM

04 accord coupe = .29

neldogg · 07-10-2004, 04:44 PM

damn that's good... didn't think they were that aerodynamic

GaRn · 07-11-2004, 09:05 AM

1st and 2nd gen eclipses were also sub .30 cd, I think like .28 possibly.. which is quite good..

petrveit · 07-12-2004, 12:16 AM

The old Opel Calibra and new Honda Accord have 0.29, the best one can find.

KW93Lude · 07-12-2004, 11:03 PM

the jun lip also improves aerodynamics

ZIG · 07-14-2004, 09:13 AM

wow, i'm into planes, and never thought anyone would talk about Cd in here

GaRn · 07-14-2004, 09:58 AM

why not?

ZIG · 07-15-2004, 10:47 AM

dunno, guess i never thought about it on cars

neldogg · 07-15-2004, 11:31 AM

well i'm an aerospace engineering major, i think about it all the time

ZIG · 07-16-2004, 07:37 AM

well, make sure you engineer the planes so they're easier to work on for us aircraft mechanics

petern101 · 07-16-2004, 01:27 PM

lol.....my dad is an aircraft mechanic......its kinda funny how sometimes i think about it and he liek replaces turbos and works on jet engines.......and i'm stuck here trying to install a master brake cylinder.....and he just makes fun of me.....also i'm just waiting for him to retire so i can grab all his mac tools

belizeprelude · 07-16-2004, 06:32 PM

Cd = 0.031/ Re^(1/7)
A Cd of 0.3 is not that good actually, the the theoretical min is
0.15. And a spoiler really doest serve any purpose under 200 mph rather than to create drag. Things like body kits may reduce the drag slightly, but probably cause more than stock, beacuse you have a larger surface area.

ZIG · 07-21-2004, 11:03 PM

i dunno...if a 150 ton plane can rotate at 160 mph and get up in the air, then i'd think a small inverted wing on a 1.5 ton vehicle would help

neldogg · 07-22-2004, 04:12 PM

lol my dad's an airline mechanic too. he's pretty well known all through asia. used to own his own company a while back

4thGenReady2Go · 07-25-2004, 01:40 AM

wasn't the drag coefficient on the CRX really low?

GaRn · 07-25-2004, 10:07 AM

Quote:

Originally Posted by belizeprelude

Cd = 0.031/ Re^(1/7)
A Cd of 0.3 is not that good actually, the the theoretical min is
0.15. And a spoiler really doest serve any purpose under 200 mph rather than to create drag. Things like body kits may reduce the drag slightly, but probably cause more than stock, beacuse you have a larger surface area.

for a car, .30 is considered good, yes.. I dont know what your comparing this to though..

Yes, a spoiler/wing, or functional one DOES serve a purpose.. track cars rarely see speeds over 200 mph, and ones that do, dont spend most of their time at those speeds.. yet they have them, so obviously they are functional.. for a street car? no. I am willing to bet every single body kit out there effects the drag/downforce in a NEGATIVE way, except for a hand full like Mugen that actually do wind tunnel testing..