1G front castor

[lowell]

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Modded my control arms for an extra 3 degrees of caster. Still need to clearance the front plastics a little, but the difference in steering feel is amazing.

 

[jtmcinder]

If it strong enough - and I'm sure that it is - then it's majorly cool. Wish I could do something like that - although not as radical - to an Evo X.

ps. a big "howdy" to everyone at VCMC - the builder of your original "Toby Light"

 

[pagosa dsm]

what are your new alignment specs
I have -1 camber and 5* pos caster and 0 toe
Rick

 

[lowell]

If it strong enough - and I'm sure that it is - then it's majorly cool. Wish I could do something like that - although not as radical - to an Evo X.

ps. a big "howdy" to everyone at VCMC - the builder of your original "Toby Light"

You Evo guys are lucky to have an off the shelf bearing solution that can also adjust anti-dive.
PERRIN Performance — — PSRS

My only complaint is when you use the PSSR with a poly front bushing, it's a bear to install the control arm due to the front bushing being off axis. I did one car with a full Robispec bearing setup though and it was fantastic.

I haven't measured the alignment settings yet, but I should also mention that i lengthened the control arms by around 3mm to gain tire clearance as my 245/45/17's just polish the frame at full lock. I'm hoping to be close to 6 deg caster, and any other adjustments will be done at the top.

By my calculations, pushing the lower ball joint forward by 1.125" should give ~1% weight shift to the rear.

 

[lowell]

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Outside view showing how far forward the wheel has moved.

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Evo with the Perrin kit for comparison.

 

[decathect]

How much total castor do you have now? Great idea.

 

[lowell]

I have some custom caster plates now and around 7 degrees.

 

[Jay Cooper]

I did the same thing to a couple 1g lca sets on our endurance race cars. We run .75" forward offset and 1" length extension. To say the corner entry and mid corner balance changes where dramatic is an understatement. We run 5 degrees of castor and -3 camber with anywhere from 0 to 1/8" toe out. The balance is incredible. The tie rod end doesn't end up being long enough but some searching of the moog shelf at the parts store was all that it took to find longer outers. We have over 100 hours of racing and no CV issues from the stretch either.