Doctor Fishtail
Well-Known Member
I am running these Swift Spec-R springs with the Konis. Spring rates on the Swifts are over 700lbs and I can tell you that chances are you will not find a better setup unless you spend about $4000 on coil overs. In 3000 miles I tried 3 sets of springs and have Sportlines BNIB in my garage and I do not think I will install them. This setup is sweet. I do not know what else to post to convince you. And these Swift Spec-Rs are LINEARI track a e46 m3 track car in the most advanced groups in my local organizations. I would say I have a good amount of experience under my belt.
Again, I don't know this platform that well as I just got the car 5 days ago. :cheers:
But generally speaking, a novice who is not comfortable at 9/10ths+ with all nannies off would do better with less spring and less tire. Stiff spring with bad shocks is a bad combo. Stiff springs with bad shocks and super sticky tires is even worse. Your springs should be as stiff as your dampers can allow.
From what I have been reading, Koni yellows + swift or BMR handling or steeda linear ultralights seem to be the way to go for a real OEM+ sport suspension that can actually take track abuse.
I have had Koni based coilovers on my M3 before they did not provide enough dampening for extreme spring rates. My M3 runs 700/850 spring rates on JRZ shocks. Those can easily handle higher spring rates.
From my experience with Koni coilovers, the base valving was not suitable for 700+ lbs spring rates.
Swift states their shock was designed for the upper limits of the PP suspension. I would imagine that this would ideally mate extremely well with the Konis.
Is there a chart that describes spring rates for all of the available performance oriented springs? I'd love to know the spring rates and the estimated drop information.
I hate slammed cars but I hate too much gap.
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