STX setup sharing thread (2022)

[Autoxer62]

Hmm, thinking about it, yes, they've always been on something that already had an adjuster of some sort. Well, I suppose the answer is a custom upper arm that's adjustable. I just got an extra pair to put bushings in, and they're heavy enough that it would be of some value to make something lighter and use these to, oh, keep your yacht anchored or something.

[strat61caster]

Originally Posted by Autoxer62

Hmm, thinking about it, yes, they've always been on something that already had an adjuster of some sort. Well, I suppose the answer is a custom upper arm that's adjustable. I just got an extra pair to put bushings in, and they're heavy enough that it would be of some value to make something lighter and use these to, oh, keep your yacht anchored or something.

Small yacht.

As the other poster mentioned you can’t do both upper and lower adjustment methods, only one. You might like the racer x arm, looks good in pictures and once you get the rear camber in the ballpark most people set and forget anyway so it’s certainly viable.

[bslate3]

Anybody else here sticking around with their gen1’s for this year? What do you have planned for this year?

I’ll still be in my 2015 BRZ and mainly just doing preventative maintenance things with some minor mods and tweaking. I find it’s good to constantly be trying out new things with suspension adjustments and shock settings, especially for every surface, so that it’s easier to change to the settings you need quicker on the fly.

[PointDSM]

Wash, rinse, repeat for myself and my car owner, likely less events this year though. No changes to the car, we have too much data as it is!

Only hope would be a co-drive for a western event with a big STX field.

[Autoxer62]

I just read this from the Dec FastTrack (I removed the stricken sections for readability):

ITEM 12) #30319 14.8.B: Bushing allowances
Change section 14.8 as follows:
14.8.B
Suspension bushings may be replaced with bushings of any materials as long as they fit in the original location. Offset bushings may be used. This does not authorize a change in type of bushing (e.g., ball and socket replacing a cylindrical bushing) or use of a bushing with an angled hole whose direction differs from that of the original bushing. If the standard bushing accommodated multi-axis motion via compliance of the component material(s), the replacement bushing may not be changed to accommodate such motion via a change in bushing type, for example to a spherical bearing or similar component involving internal moving parts. Pins or keys may be used to prevent the rotation of alternate bushings but may serve no other purpose than that of retaining the bushing in the desired position.

[strat61caster]

I don’t think that rule change does what you think it does…

[Autoxer62]

Originally Posted by strat61caster

I don’t think that rule change does what you think it does…

If I wanted to go that way I'd ask. The fact is the rule is different than before, and as written they are legal without restriction.

[Eric1855]

Reading through the rules, and with the twins' multi-link rear, I think, as written, the rules will let you run offset bushings in the rear and the adjustable arm.

The ND Miatas in STR, with the double wishbone, some run offset upper and lower bushings as bushings are "open" but you may modify or replace only one arm.

It is probably overkill, but on second thought, not illegal.

[Autoxer62]

Originally Posted by Eric1855

Reading through the rules, and with the twins' multi-link rear, I think, as written, the rules will let you run offset bushings in the rear and the adjustable arm.

The ND Miatas in STR, with the double wishbone, some run offset upper and lower bushings as bushings are "open" but you may modify or replace only one arm.

It is probably overkill, but on second thought, not illegal.

Agreed, this all started because someone wanted to know why we adjust the lower rather than the upper, the thinking being it would be better from an engineering perspective to move the upper rather than the lower. Really I don't think this is worth chasing since the car has about the right amount of camber once lowered, so the common SPC adjustable arm is really there just to get it 'just so' (BTW, I found when you're doing the alignment getting the camber, toe, and thrust all 'just so' is kind of a PITA).

[strat61caster]

Originally Posted by Autoxer62

If I wanted to go that way I'd ask. The fact is the rule is different than before, and as written they are legal without restriction.

Sorry, I misunderstood "they" and thought you were focusing on the material change, the offset bushing language was there before.

Originally Posted by Eric1855

Reading through the rules, and with the twins' multi-link rear, I think, as written, the rules will let you run offset bushings in the rear and the adjustable arm.

The ND Miatas in STR, with the double wishbone, some run offset upper and lower bushings as bushings are "open" but you may modify or replace only one arm.

It is probably overkill, but on second thought, not illegal.

Interesting on the ND's, didn't realize that they were modifying both arms. I don't think that's the intent given how the STAC has responded to letters about modifying two arms on a multilink and the change proposal in September fastrack. But I do agree this interpretation makes sense providing you "pin" one set of the bushings so they are no longer "adjustable" since 14.8.B allows for offsets, but not adjustments.

The way I think it's intended is that you take 14.8.H.1 and only one arm is allowed to be modified for camber alignment, if you do that with an offset bushing that's it, that's your modification. That's stated explicitly in the strut allowance saying you can modify the arm OR use B/C/F but not both, which now that I'm reading it means you can modify the lower arm OR modify the lower arm and do camber plates lol.

[Eric1855]

Originally Posted by strat61caster

Sorry, I misunderstood "they" and thought you were focusing on the material change, the offset bushing language was there before.



Interesting on the ND's, didn't realize that they were modifying both arms. I don't think that's the intent given how the STAC has responded to letters about modifying two arms on a multilink and the change proposal in September fastrack. But I do agree this interpretation makes sense providing you "pin" one set of the bushings so they are no longer "adjustable" since 14.8.B allows for offsets, but not adjustments.

The way I think it's intended is that you take 14.8.H.1 and only one arm is allowed to be modified for camber alignment, if you do that with an offset bushing that's it, that's your modification. That's stated explicitly in the strut allowance saying you can modify the arm OR use B/C/F but not both, which now that I'm reading it means you can modify the lower arm OR modify the lower arm and do camber plates lol.

From what I've found the interpretation is that the bushing =/= the "arm". You can only replace or modify ONE arm, but bushings in either, or both, are open under the bushing allowance in 14.8.B.

[Locust]

What transmission fluid do you all recommend for replacing on an STX car?

[e1_griego]

I thought you sold your car?

I have been running Amsoil and like it a lot.

[Locust]

Originally Posted by e1_griego

I thought you sold your car?

I have been running Amsoil and like it a lot.

Thanks! I'll give it a look.

The car goes to the Millers as soon as I get the new one but Toyota producing almost 2/3rds of the 86es as ATs and having a really bad allocation of Neptune Blues has delayed that. Chris and I talked it over and I'm going to keep running the current one until I can get the new one. But my coilovers are off for a rebuild soooo who knows if I'll even have a car for Fontana...