.:Trinity Autosport:. SWIFT Spec-R Sport Springs

Hi guys,

-Per SWIFT:

"What is the difference in progressive and linear springs?"

Linear
Well linear springs theoretically keep the same spring rate regardless of stroke.
If you have a 6kg/mm linear spring, if you compress it 10mm it should only take an additional 6kg to compress another mm. Therefore, if you compress a linear 6kg/mm spring with 60kgs of force, it will compress 10mm.

Linear Spring Characteristics
The benefit of a linear spring is consistency, meaning the weights transferring from side to side should be very smooth and consistent. After getting use to the car dynamics, drivers can anticipate weight transfers and body roll more accurately. While exiting a corner, a linear spring will return the body in a smooth manner because both sides are compressing and rebounding at the same rate, which keeps one mm of expansion to one mm of compression throughout the traction of the springs. This reduces the demand for excessive counter steering, which can result in fish tailing. For winding roads driving, this has great benefit and allows for more confident use of weight transferring because the driver won't experience unpredictable weight shifts.


The Swift Spec-R Sport Springs are engineered with redesigned lowered ride height to maximize the suspension performance, allowing the vehicle to fully absorb road condition for maximum traction and increased spring rate (based on the vehicle's factory valve settings) to further enhance cornering speed through entry & exit.

https://www.trinityautosport.com/e9x-2008-2013/suspension-bmw-e9x/swift-spec-r-lowering-springs-e9x.html

2008-2013 E9X M3 (Front -1.0" drop, 279lbs/in; Rear -0.7" drop, 670lbs/in)




$339 plus shipping

Please contact myself or joe@trinityautosport for any orders and inquiries.
Thank you!

swift springs in stock =)

I just got these installed on my car...they are amazing. Ride is slightly firmer, but very controlled. EDC works wonderfully and the drop is way better than I thought! Great product!!

taking pre-orders for next batch =)

next shipment coming in soon =)

thanks for the pre-orders, next batch coming next week =)

Would like to see a pic of an e92 M3 with these springs and 19 in wheels.

here's a pic off google:

springs scheduled to come in this week =)

nerwyll@trinityautosport wrote

springs scheduled to come in this week =)

this is good news! cant wait to receive mine. Will you guys provide tracking number for the ones who paid already?

yes once they ship out =)

so whats the status on these? sent you a pm yesterday

replied to your PM earlier sorry for the delay

sets for M3 and E90 335 going out =)

E90 non-M springs going out =)

springs going out =)

Swift springs, local install on a limerock for a SEMA car today =)

Price to Brisbane Australia 4128 please!~

PM Sent =)

swift springs currently in stock =)

limerock M3 we equipped with Swift springs is at the Stickerfix booth at SEMA =)

featured at the stickerfix booth at SEMA 2013