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Old 11-16-2008, 09:26 PM   #1
Chase R
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Default What about Tein G.tech springs for rally?

I was on Tein's website today and came across there G.tech springs. They increase the spring rate without lowering it too much (only like .5"). They say that they are for their gravel dampeners though. Do you know if these would work with KYB GR-2s? Basically my plan for the GC8 is G.tech springs, GR-2s, 16x7 Slipstreams, Hankook iPikes, and some new sway bars (probably Perrin) and endlinks.

BTW... Awesome forum!
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Old 11-17-2008, 12:09 AM   #2
williaty
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Wow. Those are almost exactly like the USDM STi stock springs. So, they'd be good for rallycross and roadrally, but not adequate for real stage rally. If I were you, though, I'd find out how hard it is to use 04-07 style springs on your 00 and save yourself several hundred bucks by picking up a set of USDM STi take off springs.


And the GR-2s WILL NOT pair well with either the G.Techs or the USDM STi take off springs. The GR-2s are barely stiffer than stock WRX struts. You'll need Tokico D-Specs or KYB AGX struts.
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Old 11-17-2008, 12:25 AM   #3
Chase R
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Cool thanks for the info on the shocks and springs. Now I guess the question is to see what it would take to fit 04 - 07 springs onto my GC. Also I don't really plan on jumping it at all. Mainly hardpack, gravel, and snow/ice. What do you think about the Prodrives for this?
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Old 11-17-2008, 12:29 AM   #4
williaty
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Prodrives are low and soft for offroad work. The STi springs or the G.Techs would be better.
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Old 11-17-2008, 12:44 AM   #5
AcquaCow
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Quote:
Originally Posted by Chase R View Post
Cool thanks for the info on the shocks and springs. Now I guess the question is to see what it would take to fit 04 - 07 springs onto my GC. Also I don't really plan on jumping it at all. Mainly hardpack, gravel, and snow/ice. What do you think about the Prodrives for this?
I believe that you need 91 Legacy tophats to fit the rear STi springs.

The fronts will bolt up just fine.

-- Dave
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Old 11-17-2008, 12:45 AM   #6
williaty
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Why would he need 91 leggy tophats rather than 04-07 Impreza tophats?
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Old 11-17-2008, 12:57 AM   #7
AcquaCow
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Quote:
Originally Posted by williaty View Post
Why would he need 91 leggy tophats rather than 04-07 Impreza tophats?
Rear bolt pattern on the GC is different than 04-07.
But the 91 Legacy has the same rear bolt pattern.
Alternatively I believe he can use the 98-01 RS rear tophats with some washer combination to make things bolt up cleanly...

I think the 91 legacy upper spring perches are also the right size for the STi springs...

There's a big thread about this somewhere... I'll see if I can remember to dig it up tomorrow...

-- Dave
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Old 11-17-2008, 01:01 AM   #8
Chase R
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Thanks again for the info. Do you know what the spring rates are for 04 - 07 USDM STI springs are? Are the JDM ones higher?
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Old 11-17-2008, 01:03 AM   #9
williaty
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Quote:
Originally Posted by Chase R View Post
Thanks again for the info. Do you know what the spring rates are for 04 - 07 USDM STI springs are? Are the JDM ones higher?
USDM STi springs are 224/193.

JDM STi Pinks are significantly higher, something like 257 in the front. The big problem for off-road stuff is that they're awfully low riding.
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Old 11-17-2008, 01:10 AM   #10
Chase R
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Ok gotchya. Just to clarify, these are the ones I need right (04 - 05 pink STI spring set): http://www.subaruparts.com/catalog/?section=818
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Old 11-17-2008, 01:12 AM   #11
williaty
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Quote:
Originally Posted by Chase R View Post
Ok gotchya. Just to clarify, these are the ones I need right (04 - 05 pink STI spring set): http://www.subaruparts.com/catalog/?section=818
No, that's not what I'd pick. Those are overpriced. Do a search for "USDM STi take off springs". These are literally the stock springs on the US STi. In the rest of the world, they're on the Spec-C. You can pick them up for about $50 when an STi owner upgrades.
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Old 11-17-2008, 01:16 AM   #12
Chase R
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Quote:
Originally Posted by williaty View Post
No, that's not what I'd pick. Those are overpriced. Do a search for "USDM STi take off springs". These are literally the stock springs on the US STi. In the rest of the world, they're on the Spec-C. You can pick them up for about $50 when an STi owner upgrades.
Sweet. I'll just keep my eyes out for them in the classifieds section and ebay/craigslist.
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Old 11-17-2008, 01:29 AM   #13
Chase R
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Will the Scooby921 spacers allow me to run the STI springs without having to change the rear upper spring hats?
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Old 11-17-2008, 01:31 AM   #14
williaty
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No, the spacers allow you to run old struts with new hats, not new springs with old hats.
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