E90Post
 


Bimmer Retrofit
 
BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > Suspension | Brakes | Chassis > New Product: Swift Spec-R sport spring for your E9x 335i



Reply
 
Thread Tools Search this Thread
      09-05-2013, 01:43 PM   #1
HP Autosport
General
United_States
1557
Rep
26,099
Posts

Drives: F80 M3
Join Date: Mar 2007
Location: Santa Barbara, AP, Brembo, GIAC, Koni, Ohlins, Performance Friction, www.hpautosport.com

iTrader: (34)

New Product: Swift Spec-R sport spring for your E9x 335i

Swift made Sport Springs Spec-R is made for true track racing enthusiasts that wants to take their vehicle to the next level.
Sport Springs Spec-R is engineered with 2 main characteristics.

1 Redesign lowering ride height to maximize the suspension performance allowing the vehicle to fully absorb road condition for maximum traction.

2 Increase in spring rate to further enhance cornering speed through entry & exit. The increase in spring rate is based on the vehicle factory stock valving settings. Sport Springs Spec-R is increase to the optimal rate that the stock shocks can handle. Higher performance shocks are not required, but recommended.

Spec R springs are wound with the same engineering as our sports springs. With the exception of stiffer rates and slight change in ride height; you can expect the same characteristics as our sports springs.



H5S.TW

Motorsport's most advanced spring material


Swift made a name for itself on the tracks of Asia, Europe, and U.S. by defying all accepted concepts and speculations about the future, if any, in coil spring science.
When many other company were looking at expensive and brittle titanium composites to create the next evolution of springs, Swift was looking at reinventing the entire science of coil spring dynamics. Swift saw that most others are using the old regular silicone chrome material, which was not strong enough. It used a heat tempering method that damaged the strength of the material that requiring more coils, in turn, more weight.
The material was also suffering from a short life span. With springs like this leading the industries, Swift saw room for improvement.

Swift's R & D team created material, called H5S.TW, which is stronger then regular silicone chrome material. Because of this material, we could make the spring wire thinner, and could wind the springs with fewer coils, which greatly decreased weight while dramatically increasing available stroke.

335i lowering:

1" in the front and 0.8" in the rear (from non-sport).

Spring rates:

-4kg/mm or 223 lb/in in the front

-11kg/mm or 615 lb/in in the rear


These should work on your 328i, 330i and 335D as well, but the lowering will be slightly different.

Last edited by HP Autosport; 10-03-2013 at 05:06 PM.
Appreciate 0
      09-05-2013, 04:18 PM   #2
blk 335i
Enlisted Member
United_States
0
Rep
44
Posts

Drives: 2010 335i Sedan
Join Date: Feb 2013
Location: Long Beach, CA

iTrader: (0)

Nice! can't wait to try!
__________________
JB4 G5 // MACHT SCHNELL catless // BMS DCI
Appreciate 0
      09-06-2013, 06:55 AM   #3
cdgatti
Colonel
cdgatti's Avatar
120
Rep
2,428
Posts

Drives: e90 328i
Join Date: May 2011
Location: KY

iTrader: (4)

Wow even the mfg doesn't know what they are talking about. Conventional spring material is silicon chrome NOT silicone chrome.
__________________
OEM Black grill and Blackline tails - LCI halogens with Lux V2 coded as DRL - 3M Crystalline - BMS PBX - OEM Euro Airbox with K&N - Hardwired CTEK - Bilstein B6 w/OEM springs and SP perches - Conti DWS06 - HiFi-Helix DSP - JLAudio HD/XD-Morel - CD changer trim - AE optical out
Appreciate 0
      10-03-2013, 05:06 PM   #4
HP Autosport
General
United_States
1557
Rep
26,099
Posts

Drives: F80 M3
Join Date: Mar 2007
Location: Santa Barbara, AP, Brembo, GIAC, Koni, Ohlins, Performance Friction, www.hpautosport.com

iTrader: (34)

Quote:
Originally Posted by cdgatti View Post
Wow even the mfg doesn't know what they are talking about. Conventional spring material is silicon chrome NOT silicone chrome.
That is just a light spelling error on Swift's part.
Appreciate 0
Reply

Bookmarks

Thread Tools Search this Thread
Search this Thread:

Advanced Search

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 Off


All times are GMT -4. The time now is 10:02 AM.




e90post
Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.
1Addicts.com, BIMMERPOST.com, E90Post.com, F30Post.com, M3Post.com, ZPost.com, 5Post.com, 6Post.com, 7Post.com, XBimmers.com logo and trademark are properties of BIMMERPOST