I like the Ivory coupe without the spoiler but don't want to undercut performance at high speed. So, at what speed does the spoiler assist in maintaining coupe stability ?? TIA. ...dean

Seattle area

 

i am sure that you would not be able to tell a difference at anything below 80mph and even then it will be hard for the average person to tell.

mainly the 'zero lift' has benefits in excess of 100mph in terms of stablity.

Dan O
Eaton Corporation

 

Faster than you should be going on a public road. :-)

 

as far as i know the spiler just greats more drag. what you should get are the under diffusers for highspeed keeping your car low to the ground instead of it rising up and feeling like your floating.

Autotuner.org Home of Hulk Hogan's Supra and a skyline 240sx

 

The spoiler on the G35's, when bought as part of the Aero Package, comes with underbody diffusers and the total package actually reduces drag by 0.01Cd.

2003.5 G35 Sedan Desert Platinum/Graphite Premium/Sport/Aero/Nav/Winter

 

yea it only reduces drag in extreme speeds. But anything for normal driving creates drag. But we are talking in such minute numbers here.

Autotuner.org Home of Hulk Hogan's Supra and a skyline 240sx

 

what exactly are the underbody diffusers? what do the look like?

03 G35 coupe SS (GD) 6spd everything but navi
02 QX4 pearl white
00 528 Silver on black

 

Black plastic panels that bolt to the underside of the car to cover up the car guts to make a smooth surface for air to travel along.

2003.5 G35 Sedan Desert Platinum/Graphite Premium/Sport/Aero/Nav/Winter

 

yup yup, inteead of air getting underneat the car and lifting it up the air just flows by.

Autotuner.org Home of Hulk Hogan's Supra and a skyline 240sx

 

The underbody spoilers can actually force the air in a direction that pulls the car onto the road, btw.

I like the stable and well-planted feel of the car at speeds.

2003.5 G35 Sedan Desert Platinum/Graphite Premium/Sport/Aero/Nav/Winter