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Re: 88 spg alignment questions Posted by vvack0matic [Email]  (#1443) [Profile/Gallery]
(more from vvack0matic) on Fri, 23 Jan 2009 14:19:56
In Reply to: 88 spg alignment questions, john daikh, Fri, 23 Jan 2009 01:56:57 Members do not see ads below this line. - Help Keep This Site Online - Signup |
not sure what your asking but let me try to bring things into perspective.
your under steering and over steering is with the toe. not the camber.
0 toe is when the car is sitting still wheels are straight, this is the deal (just a note to the others seeing this topic has ben discussed tiresly this is only an example to put things into perspective not a set for the car, i know bentley will say different)
now that being said where was i.
ah yes, the 0 toe.' this is the thing,.. when the gas is applied to move the car in a forward motion, which is all the time the 0 toe set will turn to +2 with the strain of the weight of the car on the tires, it will remain at a +2 until the car is stoped where the tires return to the 0 set.
this is the dilemma, many believe when the car moves forward the weight of the car will put the toe at +2 while others believe the power of the drive wheels pulling the car will put the toe at a -2 the object is not to have the toe at 0 when the car is sitting still its to have it at 0 when it drives down the road. driving with the -2 or +2 is like dragging a tire behind your car where ever you go. hard on gas and the motor.(this is like pigeon toeing hence toe in or out) also more -toe makes the car figity driving straight down the road but makes for quicker turning.
now lets talk about the camber. this is the core of a saab enthusiast the camber is how far the top of the tire is pushed in and the bottom out or bottom in and top out. with more of the tire out on the bottom and in on the top it will give the driver great control around hair pin corners that have a 10degree slope, but driving straight down the road will ware on the inner edge,
this is up to the driver as to how much camber to give the car, as in what is the car driven on the most, mountain roads or flat hwy, or race track
to adjust the camber you will notice the shims under the upper control arm, adding shims will pull the top of the wheel in creating better tread for corners, the shims are set at factory specs. it is the owner to find and play with the shims.
now lets talk about caster.
this is when you stand by the front wheel of the car look at it now imagen the wheel moved an inch forward from its present state or an inch backward from its present state. this affects the steering of the car with the driver side moved backward an inch and the passenger side forward and inch the car will take a left turn with very little strain along with the passenger-side wheel with a hard camber its going to fly around a corner, only thing to worry about is the rear wheels holding.
let me think..... its been awhile since i played with the caster,... how to set,,, hmmmmm ah shareeka !!
if you notice the shims in the upper control arm again, if you take out all of one sides set your camber will remain the same but it will change the position of the wheel (forward or backward) front shims on the control arm or back shime, note not all the shims need to be removed to change the position of the wheel, just the amount needed. the caster is set at factory settings, its up to the owner to find and play with the shims.
tell the tire company your camber and caster is set to factory settings for this car, its up to you on where you want the toe.
personally i would put it at a +2 to be at a 0 driving down the road but this is the dilemma because this goes against what bentley says, which is a -2 to have it at 0 driving down the road a +2, 0, or -2 should not void any warranty tell them to do a alignment and you want the toe at 0 when you drive down the road, then look at them like there blooming idiots
posted by 72.250.11...
, Fri, 23 Jan 2009 14:19:56 <-- Viewing This Message, Mon, 26 Jan 2009 17:12:37
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