When we learned that QA1 was going to discontinue the coil springs we buy and use, we went on a hunt for a new spring company to do business with. One look at Swifts Facebook page (tons of winners every week) and website was enough to convince us that this was the way to go.
We stock 150# through 300# in the 10"x1-7/8" spring, and 125#, 150#, 175# in the 12"x2-1/2" spring. If you need something else let us know at: Ryan@dri-online.com
From the Swift website: http://www.swiftsprings.com/advantage/
Surely you have read some spring manufacture's catalogs before, and you have read that they all claim to have the 4 factors listed below.
1. The most consistent spring rate throughout the stroke
2. The largest amount of stroke
3. The highest durability against loss of spring height
4. The lightest in weight
We like to believe that all suspension spring manufacturers try their best to achieve these 4 factors. Top suspension tuners know that these 4 factors play an intricate role when considering the effectiveness of the suspension coil spring.
All Springs are not created equal, the diameters and spring rates can be similar, but the process of manufacturing springs plays a huge factor in how they will perform. Through our extensive knowledge in performance springs, we have perfected the process of manufacturing springs that will outperform our competitors.
With this in mind, we set out to produce a new material for coil springs: a proprietary steel alloy we call "HS5.TW". This material was created in order to maintain the 4 factors listed above, as well as achieving the fastest reaction speed possible to get compliance on road surface conditions. Our springs are created with proprietary winding methods, as well as some other trade secrets focused on ensuring our springs separation from the standard market.
In the time since Swift Springs officially opened its doors in 1997, Swift Springs has dealt with many world class race teams in multitudes of different races including road racing, rally, off road, drift, autocross, pavement and dirt oval track, motorcycles, and more. Swift Springs has lifted many racers to a podium finish, and is still continuing to do so. With so much experience behind us, we feel confident that our springs will give you a leg up in any kind of race you participate in.
Try Swift Springs on your vehicle, and experience what many racers are talking about. We strongly believe that you will feel the difference just like every other racer, and you might even wonder why you didn't try it sooner.