Author Topic: acceptable camber  (Read 1655 times)

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Offline Voodoochikin04

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acceptable camber
« on: April 29, 2009, 03:14:30 PM »
just curious..  what is the acceptable neg/pos camber for wheels?  what is ideal?

my fronts have 3 degrees negative(in)..

my rears have 5 degrees negative(in).. it looks stupid with them leaned in that far.. but im curious what is the norm and what is ideal?  please keep the responses to the question.. :)
"it's only when you have lost everything, that your free to do anything"

dre

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Re: acceptable camber
« Reply #1 on: April 29, 2009, 04:58:25 PM »
Are you saying your camber doesn't change through the suspension range...or are these values at standard height?

artie on edge

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Re: acceptable camber
« Reply #2 on: April 29, 2009, 05:49:23 PM »
Im assuming these are static figures Voodoo.

Firstly let me say that there IS NO correct figure. What are you going to use the beast on? It depends upon you to a large degree.

How much camber gain will you have upon suspension deflection? Any?

Here is a little scenario for you. Take all your shocks off (or if using airshoks simply deflate them if you can reinflate them) and jack the beast to ride height both ends.

Start out with static 1.5 deg neg at all corners. using several jacks or whatever 'posture' the chassis so its leaning really hard into a corner (the compressed side as low as it would go if the shock fully compressed, the up side as high as it will go if the shock were fully extended) with all wheels still on the ground.

Whats the camber relative to the ground now? Still about 1.5 deg neg? if so all ok. If not, see what static camber it takes to get that approx 1.5 deg neg at full lean. I dont car what the angle of the wheel is to the chassis. Its it angle to the road surface which is important... make sense?

The posturing is simulating the worst possible angle for the car to be in.

At no time do you want the tyre to be at a pos camber angle to the road surface, front or rear. With some designs though  this isnt possible without going to ridiculous static angles.

With the suspension correctly designed, you should know all this before you cut any steel. This process will help you check it after you have built it. How are you measurin gthe camber by the way?

Try this lil calculator....

http://www.racingaspirations.com/suspensiongeometry.php

Offline Voodoochikin04

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Re: acceptable camber
« Reply #3 on: April 29, 2009, 06:06:20 PM »
due to the way front wheels are... at ride height they are leaned about -3 degrees compared to the ground.. at full compression they come to -.5 almost 90 degrees..   the rears are about -5 degrees in at full droop. they go to about -4 at ride hieght. but then stay the same throughout their travel...  all relative to the ground..  im speaking that the ground being zero and coming from a 90 degree. leaning in would make the angle from the ground to tire an acute angle.
« Last Edit: April 29, 2009, 06:09:56 PM by Voodoochikin04 »
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