Thread: Bump steer.
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07-05-2005 06:10 AM #1
The front end in your photo - except for the panhard bar angle - is exactly like many other front ends on hot rods.
They operate with a high degree of success and as Brian says, the side deflection of less than 1/6" will not be noticeable when driving.
You may as well use the correct terms to describe the pitman arm and the panhard bar.
Fwiw - a sway bar is a whole other thing and you do not show one in your photo.
A front sway bar is not required on these lightweight cars, but a rear one is.
That's whether you run coilovers in the back or a transverse spring.
The sway bar makes for a good handling car.
Without one you'll get excess body lean and a lack of hard cornering abilities.
You may think you're never gonna push this car hard, but with the horsepower (HP) you're gonna have up front there will be times the car wants to get a little sideways and the sway bar helps there.
There's always the emergency avoidance maneuver to consider, you want good handling in that situation.
And then there's the sporty cars you meet up with on the twisties.
Kinda embarassing when one of these drops in behind you on a twisty mountain road and you can't get away - or even keep up regardless of your HP levels.
As far as going to the single sided rack and pinion set-up, your basic steering linkage geometry isn't going to change so you'll still have minor bumpsteer.
I understand as well that the rack travel in these doesn't allow the car to turn as sharp as it will with a steering box.C9
".......So sanded it all down and resprayed. ......" Been there. done that on a couple of paint jobs over the years. Usually took me a couple of days to get over being mad before I started...
Stude M5 build