..Starting the quest for total neutrality.

[cdrazic93]

Originally Posted by Racecomp Engineering

A lot of it will come down to alignment and making the most of the tires as you can.

Originally Posted by mav1178

GOSPEL RIGHT HERE.

Praise jebus

[Racecomp Engineering]

Originally Posted by Calum

I just measured and inspected. I've got about 2500-3000 Kms on this setup. (Revelent stuff; MPSS, 2.5 camber, and 5.5 degs caster, 0 toe). I'm down a 32 on the inside vs the outside, but there's no gum balling or anything that would indicate too much heat.

I'm not trying to flame, just trying to add info to the subject.

You could use a little more caster FYI.

- Andy

[chaoskaze]

Originally Posted by JEDI

I think out of the box this car is great. I did notice my 13 stock FR-S tended to or was easier to slide around compared to my RS1.0, and the only difference between the two cars mechanically is the TRD springs as far as I know. Anybody know spring rate for the TRD's? Where's it better to start? Tires, Springs, or alignment? When it comes to chassis tuning. Not trying to thread jack. I cant wait to do some mountain driving with some sticky tires.

It's different, they changed frs damper to closer to brz setting starting 2015.

[strat61caster]

Originally Posted by Racecomp Engineering

You could use a little more caster FYI.

- Andy

Curious, what performance benefit is there to increasing caster on this car? I just moved mine up with the Raceseng CasCams from 5.9 to I suppose 6.9 degrees, the steering feels heavier but I don't like it, it almost feels like an artificial weight with no benefit, I'll drive it hard before I go back to be sure but so far I'm not a fan.

[Racecomp Engineering]

Originally Posted by strat61caster

Curious, what performance benefit is there to increasing caster on this car? I just moved mine up with the Raceseng CasCams from 5.9 to I suppose 6.9 degrees, the steering feels heavier but I don't like it, it almost feels like an artificial weight with no benefit, I'll drive it hard before I go back to be sure but so far I'm not a fan.

Basically, as you turn the steering wheel your outside tire loses negative camber (even without body roll). More caster limits this effect. It's noticeable mostly in tighter corners with lots of steering input.

Steering feel does get a little weird with higher values. Some really don't like it, other's don't mind it.

- Andy

[Calum]

Originally Posted by Racecomp Engineering

You could use a little more caster FYI.

- Andy

You're killing me Andy.

I have the whiteline caster bushings. I'm honestly not sure what finally the number is, but I think it was ~5.5 deg.

I've replaced my strut mounts 13 times. I have no desire to do it again. At this point unless the extra camber and caster from an adjustable mount is going to give free felatio every time I get in the car, I'm gonna stay with the group n mounts.

How much were your new mounts again?

[drewbot]

With the exchange rate the way it is, WAY too much $$$ now.

-Me loving 7.0 caster

[strat61caster]

Originally Posted by Racecomp Engineering

Basically, as you turn the steering wheel your outside tire loses negative camber (even without body roll). More caster limits this effect. It's noticeable mostly in tighter corners with lots of steering input.

Steering feel does get a little weird with higher values. Some really don't like it, other's don't mind it.

- Andy

I'll stick with it for awhile, thanks.

Originally Posted by Calum

You're killing me Andy.

I have the whiteline caster bushings. I'm honestly not sure what finally the number is, but I think it was ~5.5 deg.

I want to say mine were at least 5.5 or 5.9 OEM everything, I think you might be misremembering...

[Racecomp Engineering]

Originally Posted by Calum

You're killing me Andy.

I have the whiteline caster bushings. I'm honestly not sure what finally the number is, but I think it was ~5.5 deg.

I've replaced my strut mounts 13 times. I have no desire to do it again. At this point unless the extra camber and caster from an adjustable mount is going to give free felatio every time I get in the car, I'm gonna stay with the group n mounts.

How much were your new mounts again?

$419.

Maybe try that 16mm rear bar first.

Originally Posted by strat61caster

I want to say mine were at least 5.5 or 5.9 OEM everything, I think you might be misremembering...

I agree, that seems a bit low if you have the WL caster bushings.

- Andy

[mav1178]

Originally Posted by Racecomp Engineering

Steering feel does get a little weird with higher values. Some really don't like it, other's don't mind it.

One other possible drawback is overworking the onboard power steering, increased caster does put more stress in the steering system.

Given that a handful of us were able to overheat the electrical power steering by simply running R-comps, it may make it worse.

-alex

[strat61caster]

Originally Posted by mav1178

One other possible drawback is overworking the onboard power steering, increased caster does put more stress in the steering system.

Given that a handful of us were able to overheat the electrical power steering by simply running R-comps, it may make it worse.

-alex

It definitely feels like I'm overworking the steering for no good reason, but that's probably just my mind making stuff up.