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Discussion Starter #1 (Edited)
Couple questions about planning my 3 setup for STF.

1. Was there a possibility that I could have ordered my '08 Hatchback Sport (sunroof, power options) with no a/c? How about with no rear wiper?

2. Is the Whiteline offset front LCA big bushing STF legal? It was ST/SP legal on my Evo, but only because of the way the LCA and bushing interact. But I remember reading that it was not legal on the Subies. The design of the Subie is very similar to the 3.

Here is a pic of my Evo arms with an offset bushing for more caster. These are spherical, so not technically ST legal, but the design is legal if it were poly.



Anti Squat/Dive was achieved by spacing the bushing up or down in relation to the subframe, which I know isn't ST legal because it technically moves the mounting point. And for the same reason, I question whether the Whiteline + caster bushing is legal, even without anti-whatever.

May have some more general STF questions that I'll add to this thread.

Thanks!
 

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Couple questions about planning my 3 setup for STF.

1. Was there a possibility that I could have ordered my '08 Hatchback Sport (sunroof, power options) with no a/c? How about with no rear wiper?

2. Is the Whiteline offset front LCA big bushing STF legal? It was ST/SP legal on my Evo, but only because of the way the LCA and bushing interact. But I remember reading that it was not legal on the Subies. The design of the Subie is very similar to the 3.

Here is a pic of my Evo arms with an offset bushing for more caster. These are spherical, so not technically ST legal, but the design is legal if it were poly.



Anti Squat/Dive was achieved by spacing the bushing up or down in relation to the subframe, which I know isn't ST legal because it technically moves the mounting point. And for the same reason, I question whether the Whiteline + caster bushing is legal, even without anti-whatever.

May have some more general STF questions that I'll add to this thread.

Thanks!
1. The 2.3L came with A/C as standard equip across the board so A/C removal not an option. Couldn't tell you for sure on the rear wiper, but I'd venture to say that it was standard on all the hatchbacks.

2. This one appears compliant with the rules. If you want to go offset, this would be a safe bet imo.

http://www.whitelinesuspensionparts.com/proddetail.asp?prod=W53288
 

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I have those on my 2008 and I'd say it was a waste. Made no difference. Get camber. Lots of it. Over 3 degrees up front is a requirement. I was at 3.8 and that was about the point of diminishing returns. 3.3 or so seems ideal.
 

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Alignment and Sway Bar Links

........Get camber. Lots of it. Over 3 degrees up front is a requirement. I was at 3.8 and that was about the point of diminishing returns. 3.3 or so seems ideal.
Agree here. I was doing well at -3.5 degrees, and recently went to -4.3 or so. Times seemed to slow down, much harder to launch without too much wheel-spin. I'm back to -3.5. Trying out tomorrow.

Question.....anyone here find the need to do adjustable front sway bar links? In readjusting my camber yesterday I noticed a significant misalignment of the two front sway bar links. I'm thinking I *need* some adjustable front links.:wink:

(Related question......needed in the rear?)

If so, any used ones out there for sale, or, what's recommended for quality and reasonable price? Corksport? Whiteline?

Thx........
 

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-3.5 to -4.3 with just corksports and a modified nut?

Hoping I can knab a used hotchkis bar soon, and I'll probably just replace my endlinks while in there. Also interested in opinions.
No, BC coil overs set at max.

I have a used Hotchkis front bar for sale..... :bigsmile:
 

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Soooo, I need new tires next spring before auto x season. What should I go with? Been looking at rs3s, z1,z11

Suggestions?
 

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Soooo, I need new tires next spring before auto x season. What should I go with? Been looking at rs3s, z1,z11

Suggestions?
Well, if I was choosing over what is available to buy this week, I'd say the ZII Star Spec or RS3 Version 2 are pretty safe bets.
 

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Just priced out the zIIs.

772$ set of four, $85 shipped to the border.

Gonna buy them in a couple weeks.

It was almost $150 to ship them here, across the border lol. Nothanks.
 

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Does the cat in the header meet the STF requirements with no other cat installed?
Yes it's good. According to the rules if multiple cats (ie: 2 or more) are reduced to just one cat it cannot be more than 6" downstream from the exit of the final OE converter, but you can go upstream all day long and as far as you want.

"Catalytic converters: Any catalytic converters are allowed, but must attach
within 6” (152.4 mm) of the original unit. Multiple catalytic converters
may be replaced by a single unit. The inlet of the single replacement
converter may be located no further downstream than 6” (152.4
mm) along the piping flow path from the original exit of the final OE
converter. The extents of an OE converter are defined by the expansion
chamber in which the catalyst is contained, regardless of placement
within larger exhaust sections. Replacement converters must have a
minimum catalyst density of 100 cells per inch and minimum substrate
length of 3” (76.2 mm)"
 

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Discussion Starter #14
sweet. So I assume the reason you have the race cat is because of your header not having one.

Here is my setup in the post below. Along with the stock header.
http://www.mazda3forums.com/showpost.php?p=9738041&postcount=23

Certainly looks (and sounds..lol) like there is no cat at first glance and I just want to make sure it qualifies before someone says something.

thanks!
 

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Discussion Starter #17
What are you guys with hatches doing with all the floor paneling in the cargo area? I had no clue there was that much crap back there until having to pull it apart this past weekend. Aside from the weight, I bet my dog would be much more comfortable in the back with a lower profile cover and may do something to accommodate that as well.

can we legally remove all of the stuff that covers the spare tire?

13.2.F and 13.2.K are fairly open ended rules. The one forward-most portion technically is held in place by 2 Phillips screws, but the rest is not and Id think fall under 13.2.K. Thoughts?

.......
13.2.F. Spare tires, tools, and jacks may be removed. Any fastening hardware​
and/or other pieces that can no longer be firmly secured in the absence​
of the spare tire may be removed if necessary to ensure compliance​
with Section 3.3.3.B.1, Safety Inspection Requirements.​
.......

13.2.K. Any item that cannot be held permanently in place by factory-installed​
fasteners may be removed.​
.......​

 

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Anything that can be removed without tools comes out of my car for events, including my rear headrests.

I'm actually not sure if that is legal, I've noticed other cars with them still on the seats.
 
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