Caster and Kick angle

[Ross]

Its been a while since i built my 22 and i cant remember what angle the caster blocks are or what the degree the kick angle block it. Now its fitted with the kit parts but i cant remember if there were different options in the box for the kick angle.

Im looking at fitting the brass 25 degree kick block and 10 degree hubs, would this smooth the steering, ie not so twitchy ?

Cheers
Ross

[RDG 40]

U wud hav an angled ine and a flat one

10 degree is kit caster blocks

[Chris Elworthy]

Hi Ross,

The manual instructs you to build the car using the 20 degree kick shim with the included 10 degree caster blocks giving an overall caster value of 30 degrees. An additional 5 degree shim is also included in the kit that allows you to change the kick angle to 25 degrees if required.
Using the 25 degree shim with the standard 10 degree caster blocks will create an overall caster value of 35 degrees which will make the car a little less twitchy but may cause a little understeer.
It is most common to reduce the amount of caster when using a larger kick shim as more kick promotes weight transfer rearwards resulting in slightly more rear grip, a smaller caster block such as a 5 degree block is often used to compensate.

Chris

[Ross]

Originally Posted by Chris Elworthy

Hi Ross,

The manual instructs you to build the car using the 20 degree kick shim with the included 10 degree caster blocks giving an overall caster value of 30 degrees. An additional 5 degree shim is also included in the kit that allows you to change the kick angle to 25 degrees if required.
Using the 25 degree shim with the standard 10 degree caster blocks will create an overall caster value of 35 degrees which will make the car a little less twitchy but may cause a little understeer.
It is most common to reduce the amount of caster when using a larger kick shim as more kick promotes weight transfer rearwards resulting in slightly more rear grip, a smaller caster block such as a 5 degree block is often used to compensate.

Chris

Hi Chris

That's great info thanks. Ill fit the spare shim and order some 5 degree hubs and give that ago.

Thanks
Ross