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Old 05-17-2004, 10:59 AM   #1
dorao
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Default preparing an 05 STi for ESP

Hi,

I had a 02 WRX that wasn't very competitive in SM... I recently traded it in for an 05 STi and still have most of the parts that I thought were compatible. (cusco front sway bar, cusco front/rear strut tower braces, TXS turbo back exhaust, Apex'i N1 Coilovers)

I plan to get:
1) headers (gruppe-s one?)
2) stiffer rear sway bar (what is out there for an 05?)
3) brake lines & pads (stoptech stg1?)
4) wheels and tires.... What is out there that is 5x114 and will fit over the brakes?? I was going to put on rota torques with 245/45/17 Azenis, but now the bolt pattern is off, its back to the drawing board...

Am I missing anything? I'd like to stick to street tires for now and in the future get another set of wheels for race rubber!

Thanks in advance,
Masuo
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Old 05-17-2004, 11:54 AM   #2
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Once you start looking at new wheels & tires there has been some discussion that there may be more room under the '05 for FAT rubber. I don't know if anyone has fully sorted the news/facts from the rumors at this point But its a place to start...


Check out this thread...http://forums.nasioc.com/forums/show...hreadid=559790
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Old 05-17-2004, 04:31 PM   #3
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Biggest improvement will be some 275 r-compounds nothing else on your list (except maybe rear sway) is really going to help the car all that much.
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Old 05-17-2004, 05:03 PM   #4
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Why not prep for STU? You can always "upgrade" later if STU fizzles out but it might be hard to downgrade depending on what mods you get..

john
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Old 05-17-2004, 05:42 PM   #5
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Quote:
Originally posted by afpdl
Biggest improvement will be some 275 r-compounds nothing else on your list (except maybe rear sway) is really going to help the car all that much.
I'd imagine this is the minimum for an ESP STi... especially if you're up for a little creative fender flaring!!!
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Old 05-17-2004, 06:01 PM   #6
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Quote:
Originally posted by ButtDyno
Why not prep for STU? You can always "upgrade" later if STU fizzles out but it might be hard to downgrade depending on what mods you get..

john
At least out here, the index for ESP is lower than STU for some odd reason... and the difference is essentially race rubber and ability to run catless AFAIK... The last event I went to, I ran ESP w/ street tires.

Masuo
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Old 05-17-2004, 06:03 PM   #7
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There are more differences the just catless and race rubber. I would prep your car for stu run esp regionaly for the pax if you want to but if you do any divisionals, national tours or nationals run STU.
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Old 05-17-2004, 06:15 PM   #8
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5x114?
Azenis in ESP?

Anyways... Why don't you just drive the car and figure out what it needs, versus generating a list of stuff to put on the car w/o a well defined need to do so?

I can tell you there are a few things a stock STi needs:

1) Negative camber in the front. Camber plates.

2) Good tires. For ESP, as big as possible. 245/40-17s Hoosiers will fit on stock STi wheels and work fairly well. Any width above this is problematic from a wheel/tire perspective and will probably cost more than you want to spend.

3) If you expect to be competitive with any real ESP car, you'll need a full coilover setup. Any money spent on bars, springs or other parts on the stock struts running the car at stock ride height is IMO a waste of money.

- Steve
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Old 05-17-2004, 06:24 PM   #9
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He has coilovers, 5x114 is the new bolt patter for stis. And it wont be hard to fit larger then 245 tires on the stock 8 inch wide rims.
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Old 05-17-2004, 06:32 PM   #10
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Really?! Wow, I didn't realize they changed the bolt pattern. That is a very good thing, many more wheels fit that pattern.

8" wide wheel isn't the issue to begin with as a Hoosier 245/40-17 fits on the 7.5" wheel just fine. It's the tire/strut and tire/fender clearance that's the issue. On then STi maybe they opened it up enough to get a real tire on there - 275 or 285 - I guess we'll see. 285/30-18 is the same as stock diameter, but you'll need a 9.5 or 10" wide wheel to deal with the low profile.

Given the new bolt pattern, the choice for (larger) wheels is immensely improved.

- Steve
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Old 05-17-2004, 06:36 PM   #11
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On a stock 04 watkinsm got 275s on there with out rubbing the strut. Roll the rear fender and they woudl have cleared. 285s will probably take some more fender massaging and depending on the coilover you would probably have to mess with the camber for clearance.
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Old 05-18-2004, 11:15 AM   #12
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Quote:
Originally posted by afpdl
On a stock 04 watkinsm got 275s on there with out rubbing the strut. Roll the rear fender and they woudl have cleared. 285s will probably take some more fender massaging and depending on the coilover you would probably have to mess with the camber for clearance.
Exactly...

ESP in a NEW STi? I would be looking at the 285/30-18... no doubt about it with at least a 10" wide wheel or wider, again, depending on how crazy I want to get with the fenders...

the 255s on my STOCK sti measure 10.5" of usable tread width and are a little wider than that at the side walls and completely clear both the strut and fender (with room to spare). A little research... a tad if fender work... some trial and error and I think you could setup some BIG tires on an ESP 05 STi.

It comes down to A) how competitive do you want to be? B) and how fast do you want to go?

-Matt (who is a little dissapointed that the 04s are outdated already)
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Old 05-18-2004, 11:49 AM   #13
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I also think Mr. Watkins was wussing out a tad with the "fender rubbing" The 275s would only rub at full rear compression IMHO and with a full stiff koni you would never get there.

The 05s have a little more room inside the rear fender though, so rubbing won't even be an issue....

-Tom
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Old 05-18-2004, 12:03 PM   #14
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just chop the fenders up and throw on some 335s
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Old 05-18-2004, 12:08 PM   #15
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Quote:
Originally posted by trhoppe
I also think Mr. Watkins was wussing out a tad with the "fender rubbing" The 275s would only rub at full rear compression IMHO and with a full stiff koni you would never get there.

The 05s have a little more room inside the rear fender though, so rubbing won't even be an issue....

-Tom
As much as it pains me... I think I'm in agreement with Mr. Hoppe on this as well (not that part about me being a wuss though!). I can't vouche 100% for this since I havn't tried it on the course. I will be experimenting with this as soon as I get some extra cashola.

-Matt
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Old 05-18-2004, 12:10 PM   #16
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Quote:
Originally posted by Watkinsm3
As much as it pains me...


-Tom
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Old 05-18-2004, 01:17 PM   #17
dorao
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Though the fender has now been made to accomodate wider wheels in the rear, I think that fender rolling can't be done as easily due to the added flare bit. What wheel size/width and tire combination would be the limit for the 05 STi without rolling the fender with my 4kg/mm (IIRC) springs in the rear.

Thank you,
Masuo

Last edited by dorao; 05-18-2004 at 01:23 PM.
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Old 05-18-2004, 01:28 PM   #18
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if the 04 can get 275-285 under there with minimal rolling no reason the 05 cant. I need to get under the rear of an 05 first to be sure though.

But if your looking to be that competitive you will probably also need somthing a bit stiffer then 4k in the rear.
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Old 05-18-2004, 01:44 PM   #19
Watkinsm3
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Quote:
Originally posted by afpdl
if the 04 can get 275-285 under there with minimal rolling no reason the 05 cant.
Minimal is a strong word... I think we all take the phrase "massaging the fenders" a little too lightly sometimes. To get a decent wheel width in there ( 10"-11" ) with big honkin' tires (285s hoosiers) might take a little more than just a gentle rolling of the fender lip up... I'm just speculating at this point. Room in the fenders becomes more of an issue once you start lowering the car as well. Just some stuff to think about (as thoughts of SP, STU and SM have danced through MY head).

-Matt
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Old 05-19-2004, 10:30 AM   #20
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Fender massaging tool

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Old 05-20-2004, 11:39 AM   #21
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Quote:
Originally posted by afpdl
Fender massaging tool

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