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Old 05-28-2008, 01:32 AM   #1
Lutfy
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Default KW Variant 3 Max Spring Rates?

Folks,

I have the 'off the shelf' KW V3s on my 04 Sti. From my understanding, these are the WRX kit (340lbs front, progressive back) since the 05+ came with stiffer springs up front).

My question:

Is the valving between the two units the same (standard WRX or 04 STi application VS 05+ Sti application)?

Secondly, what are the maximum rates you can run with these (04Sti) KW V3s without running out of rebound range or requiring a rebuild?

I had planned on running 600lbs front with 500lbs rear.
Thank you in advance.

Regards,

Lutfy
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Old 05-28-2008, 01:38 AM   #2
triguy
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Default

More than likely the valving is different from the WRX set with the softer springs than the STI set with the stiffer springs. I went with the STI set on my WRX. To verify, I'd suggest PMing Myles at RCE. His shop is a major dealer of KWs.
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Old 05-28-2008, 01:44 AM   #3
Lutfy
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Quote:
Originally Posted by triguy View Post
More than likely the valving is different from the WRX set with the softer springs than the STI set with the stiffer springs. I went with the STI set on my WRX. To verify, I'd suggest PMing Myles at RCE. His shop is a major dealer of KWs.
Okay, got a bit of information here: Part 35245013 is for the STi. ....004 is for the WRX. According to KWs site the WRXs came with 340lbs whereas the STis were equipped with 440lbs front springs.

That said, I would like to know the max springs we can run on the 04 housing (front and rears) without requiring a rebuild. TIA

Lutfy

Last edited by Lutfy; 05-28-2008 at 06:55 AM.
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Old 05-28-2008, 10:16 AM   #4
RaceComp Engineering
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Wow talk about triple post !!

As I had mentioned on the phone yesterday, I have run 600/500 on stock V3's and while it "works" it wasnt optimal. Others have done this also in the past. Thats why I suggested 500/400 since your track and roads there are SUPER SMOOTH.

Yes the valving is the same between the WRX and STI applications so you are fine ( in this case) to run the 500/400 rates. Mike did mention that when you finally ordered you went ahead with the higher rates.

My suggestions that I gave you on the phone yesterday were based on YEARS of running those setups prior to us doing the T2's.

Secondly if you are going from 340/500( which is not a good set up) then you would want to make a more progressive step( 500/400) or you will struggle with changing your driving style to a great degree. Ask me how I know this?...well I see and hear this and have witnessed it for years and years with my students who make BIG changes in suspension and or other aspects of their set ups.

Thats my .02 cents worth, but I gave that to you yesterday.

Myles
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Old 05-30-2008, 02:10 PM   #5
Butt Dyno
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Just to keep it together - try to put KW V3 related questions here:
http://forums.nasioc.com/forums/showthread.php?t=429230
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