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-   -   Need alignment spec recommendations (https://www.ft86club.com/forums/showthread.php?t=118394)

8RZ 05-09-2017 02:26 PM

Need alignment spec recommendations
 
So I just installed Megan coilovers and will be doing the first alignment on it. The suspension does not have front adj. camber plates but I did buy front camber bolts (rear is all stock).

I mainly do spirited city driving with occasional autox (only 3 times last year and none this year yet).

I have heard some negative camber would be beneficial but how much in the front and rear exactly should I tell the shop? I plan on 0 toe, is castor adjustable on our cars?

Thanks.

zc06_kisstherain 05-09-2017 03:30 PM

what is your goal? just street? track? it really depends on what you want.
go from -1.5 all around and see how you like it

8RZ 05-09-2017 08:22 PM

Quote:

Originally Posted by zc06_kisstherain (Post 2907256)
what is your goal? just street? track? it really depends on what you want.
go from -1.5 all around and see how you like it



Like I stated, mostly daily driving on the street with occasional autox.

-1.5-2 all around sounds like a good start.

Gforce 05-09-2017 09:24 PM

You can get nearly 2.0 degrees rear camber with Subaru crash bolts. Subaru sells these to correct rear alignment problems.

Captain Snooze 05-09-2017 11:51 PM

It has been suggested rear camber should be initially setup with 0.5 less negative camber than front given the different wheel geometries (Mac strut vs upper/lower control arm). E.g. Front camber -3.2, rear camber -2.7.

churchx 05-10-2017 04:39 AM

"You can get nearly 2.0 degrees rear camber with Subaru crash bolts. Subaru sells these to correct rear alignment problems"
Rear camber with crash bolts? Not eccentric bushings? And it's Subaru, not Whiteline? rear alignment problems?
My conviction that he is trolling just grows stronger by each post.

8RZ 05-10-2017 09:13 AM

Quote:

Originally Posted by Captain Snooze (Post 2907550)
It has been suggested rear camber should be initially setup with 0.5 less negative camber than front given the different wheel geometries (Mac strut vs upper/lower control arm). E.g. Front camber -3.2, rear camber -2.7.

I have a staggered setup, would this still hold true for me?

Captain Snooze 05-10-2017 09:19 AM

Quote:

Originally Posted by 8RZ (Post 2907649)
I have a staggered setup, would this still hold true for me?

I do not know but I am thinking that given the differing roll rates front and rear (I am suggesting the more grip at the rear will cause more roll at the rear) you may want a different delta f/r camber.
Let me emphasise this is just conjecture on my part.

The proper way to set camber is with a pyrometer.

cjd 05-10-2017 09:22 AM

Quote:

Originally Posted by 8RZ (Post 2907649)
I have a staggered setup, would this still hold true for me?

Just get something "in the green". It's clear performance isn't your intent.

8RZ 05-10-2017 09:26 AM

Quote:

Originally Posted by cjd (Post 2907652)
Just get something "in the green". It's clear performance isn't your intent.

I never claimed it was, majority city/hwy driving.

Lynxis 05-10-2017 11:58 AM

Quote:

Originally Posted by cjd (Post 2907652)
Just get something "in the green". It's clear performance isn't your intent.

Seconding this.

Note that rear camber isn't adjustable on the stock hardware, you need either adjustable rear lower control arms or eccentric bushings so you are going to get what you get in the rear without one of those.

The suggestions for a bit less camber in the rear than the front is because the front is macpherson strut and the rear is multilink. As a result, the rear gets more camber under compression than the front does. To adjust for this, most people aim for around 0.5 degrees more in the front than the rear to even it out.

8RZ 05-10-2017 12:05 PM

Sounds good, thanks fellas.

cjd 05-10-2017 06:45 PM

Quote:

Originally Posted by 8RZ (Post 2907653)
I never claimed it was, majority city/hwy driving.

Yeah, that was me keeping it short not criticizing. I'm a proponent of more front camber than is green, but it's not required.

churchx 05-10-2017 10:53 PM

Quote:

Originally Posted by 8RZ (Post 2907649)
I have a staggered setup, would this still hold true for me?

That sounds to me like much more grip needs to be added in front relative to rear. Be it in way of extra camber, lesser swaybar or whatever. Of course my real choice would be to not get staggered wheel/tire setup in first place, to not have to workaround it. Even selling staggered set of used wheels is much harder as there are way less potential buyers who would want such.


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