40 buck brake duct kit

[kishg]

sheesh what a pointless argument. yes, having a backing plate probably is more efficient. not having one will not automatically cause your car to fly off the track due the "lift" generated and cause massive death and destruction either..

[p0cket penguins]

http://forums.bimmerforums.com/forum/showthread.php?t=950334&highlight=brake+duct&page=2

post 32 .... similar setup

[p0cket penguins]

http://spece30.com/component/option,com_fireboard/Itemid,86/func,view/id,22490/catid,5/limit,10/limitstart,20/

exact setup ..... but mine is closer to the center

[p0cket penguins]

These work http://www.r3vlimited.com/board/showthread.php?t=110742

yes but they are also 7.125 times more expensive prior to shipping

[Need4Speed]

These work http://www.r3vlimited.com/board/showthread.php?t=110742

[2002maniac]

asubimmer, you crack me up! I cant beleive you are college educated.

With his brake setup he'll never ever ever experience fade unless he runs street pads or something. With or without ducting.

[scabzzzz]

Id rather see plates designed to hold the duct in place, but I really cant see it hurting anything. If anything, it will just be barely efficient.

[p0cket penguins]

I didn't say the car way going to take off like an airplane. But more air under the car does increase lift. Which on the track means snap understeer, oversteer, or traction in general, etc...

using this logic you can assume that taking an IS lip off the car will cause the same phenomenon...... but i digress.... the duct are what they are and if you dont like them... thats ok ... its still a 40 dollar upgrade over the stock ones which fall out during track events....

[asubimmer]

Haha wow you're a moron.



That's like saying the drag force caused by air pushing on the front end of your car will cause a moment about your rear wheels, making the car backflip. We're all doomed!!!!!!!

I didn't say the car way going to take off like an airplane. But more air under the car does increase lift. Which on the track means snap understeer, oversteer, or traction in general, etc...

[p0cket penguins]

i feel that the difference in efficiency ratio and cost is negligible .... and if it was so substantial i wonder why most spec 30 people run the same thing im running .......... the world may never know..... i feel you have already tarnished your credibility with the gonna lift the front end theory..... thus if you dont like it cool you dont HAVE to run it ....... ;)

[asubimmer]

and if the backing plates dont make a complete seal then the same scenario is attained.... ;)

nope. Most of the air with a backing plate goes through the fins. Most of the air doesn't go in the fins w/out. A backing plate won't get all of the air in the fins but it is MUCH more efficient.

[PhillyG]

on the street prob not, but on the track where speeds are much higher yeah... Not everyone has million dollar budgets to race but that doesn't mean you should take a beater to the track.

Think about this OP:

Face a fan at a wall. Where does the air go? Most of it will bounce back where it came from, ie dumping large amts of air under the car. Very little will go down the sides of the wall, ie "out the fins". Now take the same fan and duct it so the air can only go along the wall. Where does the air go this time? Down the sides of the wall, ie "out the fins".

Fading brakes and air dumping under your car causing lift = a disaster waiting to happen.

are you fucking serious?

[p0cket penguins]

on the street prob not, but on the track where speeds are much higher yeah... Not everyone has million dollar budgets to race but that doesn't mean you should take a beater to the track.

Think about this OP:

Face a fan at a wall. Where does the air go? Most of it will bounce back where it came from, ie dumping large amts of air under the car. Very little will go down the sides of the wall, ie "out the fins". Now take the same fan and duct it so the air can only go along the wall. Where does the air go this time? Down the sides of the wall, ie "out the fins".

Fading brakes and air dumping under your car causing lift = a disaster waiting to happen.

and if the backing plates dont make a complete seal then the same scenario is attained.... ;)

[p0cket penguins]

It depends who you buy the plates from. Good ones are made to fit VERY close to the rotor. There isn't a way to make a seal from the rotor to a backing plate :???:. If there was it wouldn't make much of a diff. Although having a backing plate and not IS a big diff. The plate does a much better job directing the air through the rotor.

If this really is a track car I suggest not half assing the job so you don't hurt yourself or others. Its ok to do things cheap as long as what you do isn't cheap...

what your saying is the a ton of spec e30 people are wrong .... they fit close to the rotor yet not being able to seal it... thus if the rate of the air is moving too fast it will leak between the plate and the rotor cooling off the rotor..... either way i dont think there is much difference .... also the job is not half assed... its just a brake duct chillax

[andyman2487]

air dumping under your car causing lift = a disaster waiting to happen.

Haha wow you're a moron.



That's like saying the drag force caused by air pushing on the front end of your car will cause a moment about your rear wheels, making the car backflip. We're all doomed!!!!!!!