is the alignment on the FRS/BRZ adjustable?
 

I owned an Evo and S2000 and these cars offered pretty decent adjustability, unless you slammed them you could adjust it back to neutral or set the camber & toe to desired settings without purchasing aftermarket kits.

Does anyone know if the OE suspension on these cars offers some adjustability too?

There is definitely room for camber/caster plates up front. They appear to have a concentric bolt adjustment for camber up front which allows for a little variation. from what I've seen for parts diags so far, I can't tell if there is caster adjustment or not. Toe is always adjustable.

no

por que ?

No eccentric bolt.
http://www.ft86club.com/forums/attac...1&d=1331952891

I'm certain that there is camber adjustment in the front. Even a base Impreza from the '90s has a concentric bolt in the top of the steering knuckle. Never seen a mac/strut set-up that didn't. How else would they achieve camber specs that compensate for the road crown ?

The pre-production cars do now have front concentric bolts. We'll see what the production cars have.

Rear camber is adjusable and all four wheels can be adjusted for toe.

Thanks for the info

In my limited experience (E28/240SX/240Z) McPherson struts generally don't have camber adjustability.

As for "road crown", the only people who ever mention that regarding alignment is the alignment shop when you complain that the car pulls after their work. If it pulls to the right you get "oh, that's due to the road crown". If it pulls to the left "Oh, they set them up to do that from the factory to compensate for the road crown"!

Nobody *really* sets camber for "road crown". That would mean POSITIVE camber :P

Most Subarus do generally have at least front camber adjustability built in and I'm surprised the BRZ's we have seen so far have not. Maybe they'll add it for the production models. Either way, a quality front camber bolt is a cheap OEM part to add and it already exists. And of course we'll have camber plates ready to go if you want lots of camber.

- Andrew

Not sure where the "there is no eccentric bolt" and "macstrut cars don't have camber adjustment" stuff is coming from because neither is true. It had been confirmed a while ago that there would be eccentric bolts in the front. WRXs and STIs have been using the macstrut for ever and have eccentric bolts from the factory for camber adjustment.
What in the this picture is evidence of no eccentric bolt? Because I sure can't see a lobe or lack of lobe on either bolt.
http://www.ft86club.com/forums/attac...1&d=1331952891

This car definitely has an eccentric bolt in the upper knuckle-to-strut mount that will allow about a degree of swing. Current WRXs are able to get about -2.3 degrees of camber adjustment with larger eccentric bolts.

The bolt on the right is a stock Subaru bolt:
http://images29.fotki.com/v310/photo...erBolts-vi.jpg

FTR, I said "generally"...

I'm officially encouraged.

Don't see how 2mm swing would amount to 1 degree camber change, unless the top of the strut is fixed only 4.6" above the eccentric bolt?

Anyway, sounds good, we won't be stuck at 0 - 0.5 deg :D

Umm, you'll have to take my word for it...but the upper bolt is not eccentric for the BRZ. It usually is on subarus, but not this time. Maybe it'll change for the production cars, but it is not adjustable for the BRZ. Trust me.

- Andrew

Interesting...so how is the camber adjustment going to happen for stock classers?

Subaru OEM eccentric bolt has tick marks on the lip. I see none on that pic. To be fair - that pic above is the first semi-legible pic of the proper side of the bolt and all previous claims of 'no camber adjustment' weren't backed by anything other than words.

http://www.porcupine73.com/pics/suspension/camber2.jpg

Be careful, Andrew, you don't want to give away too much information too soon. :D

IIRC MotoIQ confirmed eccentric bolts were not used on the preproduction FR-S either a few months ago.

Hopefully they throw the usual adjustable bolt in for the production car. I'm with you...I'm really surprised it wasn't in there already since they've used an eccentric on every car I've seen up to now. It would be a pretty weak area to save on costs for a performance car and I'd think they know better, so I'm hopeful but it's speculation right now.

- Andrew

Yes, w/o a supporting picture.

Ah, good to know...don't think I've ever seen the top of one of the eccentric bolts from Subaru before.

Yup...and I even posted the original story here when it came out...:bonk:

Bizarre indeed. I hope they do the right thing too! Thanks for the insight.

It's not the distance from the bolt to the tophat that matters, it's the distance between the bolts. Think about it.

Ah , of course...

Heres hoping these cars get some front camber adjustability.

or they could do it the toyota way
 

You can see a Scion Tc factory service manual at scionlife.com - it specifies an array of bolt sizes you can use in various combinations to achieve camber adjustment.

Perhaps to ease assembly/save costs, the cars will come without subaru style cammed bolts and all adjustments will be made with toyota/scion style 'crash' bolts.

I'm eagerly waiting for a look at the FSM's!

There are no multiple sized bolts like on most Toyota applications.

Most Toyotas have slotted struts and the smaller bolts are only for when you reach the max adjustability of the original bolts. Subaru uses cam-shaped bolts normally.

Looking at the parts diagrams for the FR-S, the upper bolt is definitely different than the lower, but it is hard to tell from the diagram whether it is a cam shape or not.

Jeff

Looking at the diagram posted in the other thread: http://www.ft86club.com/forums/showp...11&postcount=7
it does look pictorially like the bolts are a bit different but the PNC numbers for the top and bottom bolts are the same.

What are the part numbers called for by PNCs 43211K(RH) and 43212D(LH)?

Any chance that additional part numbers will be added for a particular PNC with a later release/update of the EPC?

Good info! I figured they would use something allowing for a reasonable amount of adjustability, but have not seen anything concrete thansk for the info!

PNC's are the same, but you can see that they have "No.1" and "No.2" listed as well, which typically means they are different, in some cases they may share the same PNC but they could be listed as "LOWER" and "UPPER" once you get the actual translation as well. In this case, they are different:

No.1 (RH and LH Upper) are part number SU003-02805.
No.2 (RH and LH Lower) are part number SU003-02818.

Jeff

See Jeff's update over in this thread - link.