Toymods Car Club Inc: Tech & Conversions => Rear spoilers on FWD cars

Toymods Car Club
www.toymods.org.au

F.A.Q.

Home

Members

Toymods » Tech & Conversions » Rear spoilers on FWD cars Show: Today's Posts :: Show Polls Email to friend

Author

Topic

IRA11Y
Forums Junkie

Club Member

Location:
sydney
Registered:
May 2002

Re: Rear spoilers on FWD cars

Thu, 04 March 2004 03:12

Quote:

Rear wings can be effective, and at speeds less than 160km/h. Seen a rally car flying through the air with its nose heading towards the sky?

if youve ever jumped a motor bike, and know what acceleration and braking does to a rotating mass and what its attached to then youll know that the wing has very little to do with it, no matter how big the wing and how fast your travelling. Do some reading on forces applied to centrifugal rotating mass if you want get into the engineering of it. Although this is only a small part of the equation of what happens, rally cars produce incredible torque and so this is still a factor at the take off point. The major factor of course is the weight location and centre of gravity

Quote:

Getting back to the original question, in some cases a wing on a FWD car can be beneficial.

It can compensate for bad suspension design.

are you serious??? a wing will never compensate for suspension, firstly it has to have a fair amount of force ( something a oem spoiler will never produce ) to even affect the spring or shock.

Think about when you lean on a car, if you weigh say 70-80Kg's then the car, ( with reasonbly new suspension ) will barely move. Lets guestimate that youre putting roughly half your available weight on the one spring point, so say 40Kg, now multiply that by two to have any affect over a front or rear section of the vehicle, thats 80Kg, now think about how much air flowing over a well designed wing will produce that much downforce....in most corolla setups youd have to be doing over 150kmh to get close to 80Kgs of downforce and even then youve barely affected the suspension.

secondly the spoiler is only affecting sprung weight. nuff said right there.

Quote:

Can reduce fuel consumption - a well designed and installed wing

most OEM wings are NOT well designed to reduce drag, they are merely a marketing gimmick to sell more cars.

In some rare occasions, especially during the fuel chrisis in the 70-80's then there were a lot of companys making the effort to reduce drag co-efficients,in fact I recall one car getting down to a co-efficient of 0.2!!! but i think youll find now days there is little emphasis on that, when was the last time you read a new car brochure that stated its drag rating Smile

EDIT: to clarify my point on the jumping of rallycars, the subaru is an incredibly balanced machine with lots of torque this is why they are one of the few rally cars built to have been able to maintain a nose up attitude in flight, being 4WD with lots of rear weight also helps

and Mr Subaru said...

if you build a wing big enough it will work Rolling Eyes

[Updated on: Thu, 04 March 2004 03:20]

[Report message to a moderator]

[Message index]

-=] Back to Top [=-

Current Time: Mon Feb 24 10:06:43 UTC 2025

Total time taken to generate the page: 0.011362075805664 seconds

.:: Contact :: Home ::.