Swapping Control Arms for a little more Negative Camber
Posted: Fri Mar 23, 2018 8:12 pm
This is a mod that gets talked about a lot. And since I was interested in getting just
a little bit more camber on my AE86 road car, I grabbed a pair of TT132 (IIRC) LCA's.
Apparently these are the same as XT130, RA40 and a few other old Toyotas, and these
are the LCA's that are said to be 10mm longer than the stock AE86 LCA.
However, when I did a bit of searching, I found that the interwebs emphatically state
that these LCA's give anything between no gain in length up to 15mm gain, with a
lot of "i dunno's ' sitting on the fence. So I decided to make this post to try and show
what I found to be the difference. To begin with I hung the arms in a rachet extension
to show how the overall length compared...
The difference does not look like much. and in fairness to the "I dunno's" these things
are incredibly difficult to measure due to their unusual shape. The only true measurement
is from the centre of the bushing shaft to the centre of the ball joint shaft at the point
where it passes thru the steering arm while the arm is bolted to the strut. This last pic
shows why this is the only true measurement... due to the difference in ball joint angle.
I couldn't measure that, but by eyeball and tape I estimate the effective extra length to be
11mm plus or minus 1mm. A 10mm increase is said to be good for an extra one degree of
negative camber, so I'm hoping for around neg 1.5 degrees when I get my alignment done
Cheers... jondee86
a little bit more camber on my AE86 road car, I grabbed a pair of TT132 (IIRC) LCA's.
Apparently these are the same as XT130, RA40 and a few other old Toyotas, and these
are the LCA's that are said to be 10mm longer than the stock AE86 LCA.
However, when I did a bit of searching, I found that the interwebs emphatically state
that these LCA's give anything between no gain in length up to 15mm gain, with a
lot of "i dunno's ' sitting on the fence. So I decided to make this post to try and show
what I found to be the difference. To begin with I hung the arms in a rachet extension
to show how the overall length compared...
The difference does not look like much. and in fairness to the "I dunno's" these things
are incredibly difficult to measure due to their unusual shape. The only true measurement
is from the centre of the bushing shaft to the centre of the ball joint shaft at the point
where it passes thru the steering arm while the arm is bolted to the strut. This last pic
shows why this is the only true measurement... due to the difference in ball joint angle.
I couldn't measure that, but by eyeball and tape I estimate the effective extra length to be
11mm plus or minus 1mm. A 10mm increase is said to be good for an extra one degree of
negative camber, so I'm hoping for around neg 1.5 degrees when I get my alignment done
Cheers... jondee86