Castor angle limitation
Castor angle limitation
(OP)
Hi all
I'm having a minibus with a front axle load of 3tons. (power assister steering). The castor angle was 3deg and i had lot of problems like the steering was very light (floating like feeling) at high speeds & poor self centering. Now i've increased it to 6deg & now the steering grip is better at high speeds & the self centering is also very good.
Is there any adverse effect in having a 6 deg castor? (The vehicle has a rigid axle front axle beam with reverse elliot type stub axles)
Cheers
Sen
I'm having a minibus with a front axle load of 3tons. (power assister steering). The castor angle was 3deg and i had lot of problems like the steering was very light (floating like feeling) at high speeds & poor self centering. Now i've increased it to 6deg & now the steering grip is better at high speeds & the self centering is also very good.
Is there any adverse effect in having a 6 deg castor? (The vehicle has a rigid axle front axle beam with reverse elliot type stub axles)
Cheers
Sen





RE: Castor angle limitation
You've also altered the bumpsteer. But whether this consequence is adverse, benign, or even beneficial cannot be determined without more information.
Norm
RE: Castor angle limitation
our vehicle has 0mm toe setting. hence i think tht there won't be any toe variation by altering the castor..
But is this 6deg per say is ok?? what will be normal castor in LCVs with rigid front axle beams
sen
RE: Castor angle limitation
The above toe effect is small, perhaps under 0.1* of total toe, so you may well still be within tolerance.
Bumpsteer is the dynamic version of the above geometric description, where the relative vertical separation of the inner and outer tie rod ends varies as a consequence of suspension movement. You'd most easily feel this from the driver's seat as changes required in the amount of steering input to maintain a precise position and heading within your lane as you encounter a slight pavement 'heave' within a turn taken at speed.
Norm
RE: Castor angle limitation