Board Logo

steering damper
bugzla - April 16th, 2011 at 06:01 AM

hey guys question got a problem, i have a manx with a problem in the steering, the problem is i think it needs a bigger damper as its only when the road is uneven that i get the shutter i think its because its so light in the front and the tyre size is 235 this happens any thoughts of wat it could be and how to fix it p.s the standard damper is new
cheers
stevo


Lucky Phil - April 17th, 2011 at 07:41 PM

I'd start with the basics first.
Jack up the front and put it on stands. Turn the wheels by hand and check everything is running true. The rim could be bent and the tyre out of round.
If all seems ok try balancing the wheels again (you have balanced them, have'nt you?).
That is a big wheel for a little car and if everything isn't spot on, she's gonna shake.


68AutoBug - April 18th, 2011 at 12:06 AM

YIKES

235 is a BIG WIDE tyre to use on the front...

Maybe too BIG...

Original size was 155 so, maybe You have Gone past the Balance of the original front end... and steering box etc...

165 is normal size these days...

ALL that weight of a BIG tyre on a very light front end...

what pressure are You running....??

I wouldn't run any more than 22 PSI on the front..

try 18 PSI ... VW recommended pressure on a beetle..

LEE


vwo60 - April 18th, 2011 at 08:25 AM

You hav e a problem with the unsprung weight, if you go for a ride in a big yank tank they ride really well, low unsprung weight contribute's to this, its the weight of wheel, tyre and the unsprung part of the suspension including the brakes compaired against the weight of the car, the lower the percentage the less affect this has on the on the ability of the suspension to do its job, in your case you have a very light car with a large tyre and probably a steel rim, this would resault in a very high unsprung weight, when you hit a bump it has so much mass hanging on the end of the stub axle it throws the car around and stops the suspension from doing it's job, make's the car unpredictable and ride badly, if you put heavier shocks on your manx it will even be worse as this will just direct all the energy directly into your light weight car, this is why wheel and tyre manufactures go to a lot of trouble to make light weight alloy wheels and light weight tyre's, i have a set of three piece 17" rim's with spun aluminium rim's on my beetle with 45 profile tyre's and this combo work's well with a good ride and excellent handling, a wheel like a centerline would be the best choice for your buggy as they are spun from aluminium sheet and riveted together resaulting in a very light wheel, a change of steering damper will not help.


bugzla - April 19th, 2011 at 02:46 AM

ive got some 6 " wide steelies under the house might get some new tyres for them and see how they go they will be just that lil bit lighter ............. was thinking of weighting down the front alittle i have some alloys but they are 14 " they look good but i cant get tyres for them anymore to suit the buggy cause even a 60 series tyre will look crap cause of the hight of the car.


vwo60 - April 19th, 2011 at 08:07 AM

Weight what wheel / tyre combo that you run now and compair it to the other set that you are concidering using, take your bath room scales with you to the tyre place a weigh some of the tyre's that are suitable and get the lightest, mag wheels are no guarentee that they are lighter than steel wheels, because your car has had the body replaced by a lighter one the unsprung weight has increased even with the standard wheels and it is critical that you keep it light as posible, down the road concider the center line wheels and on your car would make a noticable difference.


matberry - April 19th, 2011 at 08:25 AM

Your onto it VWo60, centerlines make a huge difference to any car.:tu::tu: