Welcome to Bimmerfest -- The #1 Online Community for BMW related information! Please enjoy the discussion forums below and share your experiences with the 200,000 current, new and past BMW owners. The forums are broken out by car model and into other special interest sections such as BMW European Delivery and a special forum to voice your questions to the many BMW dealers on the site to assist our members!

Please follow the links below to help get you started!

Go Back   Bimmerfest - BMW Forums > The Best of Bimmerfest! > Tire Rack's Tires, Wheels, Brakes & Suspension

Tire Rack's Tires, Wheels, Brakes & Suspension
Discuss everything about wheels, tires, suspension and brakes for your BMW.

Sponsored by The Tirerack. Moderated by Gary@Tirerack.com

Reply
 
Thread Tools Display Modes
  #1  
Old 11-25-2003, 06:18 PM
Andy's Avatar
Andy Andy is offline
Officially Welcomed to the 'Fest
Location: USA
 
Join Date: Jul 2003
Posts: 1,586
Mein Auto: E30, M3, 540i
Question Koni Reds or Koni Yellows

I would like to get a set of Koni shocks and struts for my car for autocross next year. It appears Koni makes two types Red & Yellow. Red being double adjustable used primarily for autocross and the Yellow being single adjustable used primary for sport/street.

I went out to Tire Rack's web site and it appears they only sell the Yellow (sport) for my car (2003 330i). Now I know a lot of you guys that autocross bought a set of Konis. Do you guys have the Yellows or the Reds? It appears Koni doesn't make the Reds for 330s, 325s, Z4s, Z3, etc. So I assume you guys bought the single adjustable Koni Yellows, right?

Can the Koni Yellows be adjusted so that they are substantially better then my stock shocks and struts on my 2003 330i ZHP?
__________________
- 1987 BMW 325is
- 2002 BMW M3
- 2003 BMW 540i Sport
Reply With Quote
Advertisement
  #2  
Old 11-25-2003, 07:09 PM
Nick325xiT 5spd's Avatar
Nick325xiT 5spd Nick325xiT 5spd is offline
Registered User
Location: Bethesda, MD
 
Join Date: Dec 2001
Posts: 10,856
Send a message via ICQ to Nick325xiT 5spd Send a message via AIM to Nick325xiT 5spd Send a message via Yahoo to Nick325xiT 5spd
Mein Auto: M3 & 323i/999 KP
If you want double adjustable shocks, TC Kline can help you out. (For more than twice the price of single adjustable shocks.)

Koni yellows are quite a bit better than the stock shocks and will have a much longer life. Remember to get top adjustable rear shocks (even though they require special shock mounts). Furthermore, TC Kline recommends E36 M3 rears for E46 applications, and IMHO, they're pretty nice.
__________________
2006 GMC Sierra 2500HD 4WD Duramax LBZ/Allison 6-speed
2002 BMW M3 Alpinweiß/Black
1999 323i KP/GTS2 Alpinweiß
1990 325is Brilliantrot/Tan
1989 325is S50B30US Alpinweiß/Black
1989 M3 Alpinweiß/Black S50B32 (321hp, ITBs)


Reply With Quote
  #3  
Old 11-26-2003, 02:04 AM
Pinecone's Avatar
Pinecone Pinecone is offline
M Mad
Location: Maryland
 
Join Date: Apr 2002
Posts: 10,480
Mein Auto: M Roadster/M3
Ground Control can also help you out with Double Adjustable conversions. But TC Kline also has a great reputation. A reasonable cost effective comprimise is single adjustabel fronts and double adjustable rears. If nothing else, this makes the rears adjustable without removing them from teh car like the standard single adjustables.

The big question is are you going to take the time and effort (testing, testing, and more testing) to actually make the adjustments in a systematic way?

If not, call Ground Cotntrol, have them ship you a set of single adjustable Konis pre-set for your car setup (meaning stock springs since you seem to run Stock class). GC will do this, and they know what they are doing.
__________________
Terry Carraway

'95 Alpine M3 LTW
'00 Dakar M Roadster
'02 Topaz M3
Red/White SRF #4 (Chassis 561)
Reply With Quote
  #4  
Old 11-26-2003, 06:46 AM
Andy's Avatar
Andy Andy is offline
Officially Welcomed to the 'Fest
Location: USA
 
Join Date: Jul 2003
Posts: 1,586
Mein Auto: E30, M3, 540i
Thanks Nick, I'm looking at their site right now.

Pinecone, you bring up a good point about testing and adjusting.

I guess I should start out by asking a few questions...

What exactly will a better set of shocks and struts do for me on the track? I assume, that if you get adjustable shocks you can set them to full stiff to get the best performance. And by performance, I assume setting the shocks/struts to full stiff will help reduce body roll in the corners and ultimately help you to take corners faster.

What are some other ways that aftermarket shocks and struts affect the car? Is it as simple as setting the shocks/struts to full stiff before a race and then setting them to full soft (or somewhere in between) when using as your daily driver? I guess this is really what I'm after. However, if double adjustable shocks/struts will offer more on track performance then I would prefer those. I just don't have the knowledge (and a test track) to full test the adjustments.

When it comes to what I want, handling and performance is #1. Comfort and cost come in a distant, and I mean a long distant 2nd and 3rd.

And Pinecone you're right... I want to remain in the stock class so it's only the shocks, struts and shock mounts that I can replace.

What would you guys recommend me to get?

Thanks!!
__________________
- 1987 BMW 325is
- 2002 BMW M3
- 2003 BMW 540i Sport
Reply With Quote
  #5  
Old 11-26-2003, 06:54 AM
Nick325xiT 5spd's Avatar
Nick325xiT 5spd Nick325xiT 5spd is offline
Registered User
Location: Bethesda, MD
 
Join Date: Dec 2001
Posts: 10,856
Send a message via ICQ to Nick325xiT 5spd Send a message via AIM to Nick325xiT 5spd Send a message via Yahoo to Nick325xiT 5spd
Mein Auto: M3 & 323i/999 KP
No, setting to full stiff is not necessarily the right thing.

Remember that when you set to full stiff, you're slowing the shock's rebound. Up to a point, stiffer is good, but then you reach a point where the springs aren't able to re-extend fully before the next turn... Eventually, they get fully compressed, spring rates go to infinity and you get snap oversteer (particularly likely in a slalom) or a big time push if your fronts compress too much. Of course, a big front bar would probably help prevent the front from compressing too too much.
__________________
2006 GMC Sierra 2500HD 4WD Duramax LBZ/Allison 6-speed
2002 BMW M3 Alpinweiß/Black
1999 323i KP/GTS2 Alpinweiß
1990 325is Brilliantrot/Tan
1989 325is S50B30US Alpinweiß/Black
1989 M3 Alpinweiß/Black S50B32 (321hp, ITBs)


Reply With Quote
  #6  
Old 11-26-2003, 04:56 PM
Pinecone's Avatar
Pinecone Pinecone is offline
M Mad
Location: Maryland
 
Join Date: Apr 2002
Posts: 10,480
Mein Auto: M Roadster/M3
Absolutely. If it was a matter of going full stiff, why have adjustables?

It depends on the car, the driver adn the tires, and the course. They REALLY fast guys know how to adjust their shocks for various conditions.

Most people pick a middle setting and go for it. In that case why pay so much for all those adjustments?
__________________
Terry Carraway

'95 Alpine M3 LTW
'00 Dakar M Roadster
'02 Topaz M3
Red/White SRF #4 (Chassis 561)
Reply With Quote
Reply

Bookmarks


Forum Navigation
Go Back   Bimmerfest - BMW Forums > The Best of Bimmerfest! > Tire Rack's Tires, Wheels, Brakes & Suspension
Today's Posts Search
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On



Forum Jump


All times are GMT -7. The time now is 10:40 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
© 2001-2011 performanceIX, Inc. All Rights Reserved .: guidelines .:. privacy .:. terms