Camber with taller tires?

[Corncake21]

Hello I'm not sure if this question belongs here but I am looking to find out how a taller set of tires gives my 88 2wd ranger more positive or negative camber. I'm looking to get a set of track wheels and tires for autocross and i'd like to size them to where I can change out from my street wheels with good alignment to track wheels and sit with more negative camber up front but I wasn't sure if that means I need a taller or shorter tire. I would think taller so that the wheel sits up higher, but I can also see that making the suspension sit at more of a droop making it positive. If anyone has any input please let me know.

 

[Shran]

Tire height will not change your camber at all. Huge tires...tiny tires... wide wheels, narrow wheels, camber will not change.

Camber is changed by using a taller/shorter/stiffer/less stiff coil spring or using different camber bushings at the upper ball joints.

 

[Curious Hound]

Yup. What he^^^^ said. Camber, caster and toe are all decided by adjustments, not tire size.

 

[bobbywalter]

for the most part this is true


but, i will have to disagree in absolutes.


wheel size and offset with tib/ttb will change the rolling alignment depending on actuals.


my 3.5 offset 12 in wide wheels on 38s would cause the truck to wobble backing up and camber out at speed, where the 33 on normal 8 in wheels was perfect. the camber was more agrressive with the 35s on 10 in wheels with shallow back spacing as well.

 

[Corncake21]

That makes sense. Thanks for the response. I'll probably go with shorter wheels/tires then to lower the ride height more.

 

[Shran]

for the most part this is true


but, i will have to disagree in absolutes.


wheel size and offset with tib/ttb will change the rolling alignment depending on actuals.


my 3.5 offset 12 in wide wheels on 38s would cause the truck to wobble backing up and camber out at speed, where the 33 on normal 8 in wheels was perfect. the camber was more agrressive with the 35s on 10 in wheels with shallow back spacing as well.

I agree with this 100%. I was going to mention big tires on wide wheels with not much backspacing acting as a lever on the suspension and changing camber measurements but I didn't think it was relevant in this particular situation.

 

[Curious Hound]

Plus, Bobby mentioned the dynamic effects vs static. Just sitting there, everything can look perfect. But moving, too much toe or toe in the wrong direction will drive the wheels in or out and change the camber in dynamic use. Caster plays a roll in that also.

 

[pjtoledo]

don't confuse camber with steering axis vs wheel centerline.
that offset changes with tire height, and wheel offset.