Does anyone know the spring rate for these springs? TSW MINI Performance Springs - Way Motor Works I can't seem to get an answer to my PM.
Not sure the standard spring rates on the V3's, but you can get the springs for the V3's customized to whatever rates you want... Just make sure you dyno them to be sure though--I remember Marc bought springs, and they were way off--they sent the wrong springs. I have the V2's, can't remember the exact rates offhand, but the springs were fine.
Think the V2 rate was 200 front and back and with the smaller diameter and straight shape of the front V3 spring, they went a touch heavier on the front, 210 front and 200 rear V3. Least that is what I understood after a conversation with Jeff awhile back when I was considering changing the fronts when doing the camber plates....
If I recall correctly, I was informed by TSW some time ago that their springs are 217 lbs/in in front and 200lbs/in in the back. However, I see other suspension options listed at 350, 400 or even 450 lbs/in. So, I am beginning to question whether or not I really have 200 lbs/in spings as they don't seem to be as weak as the numbers suggest. They even perform well for an occasional track day. So, could they be as light as I was originally informed? Has anyone dyno'd the TSW V3 springs?
Think those high rate numbers are for coilover type springs which are smaller in diameter thus the heavier rates. But I'm not sure exactly how they compare. Maybe someone can fill us in.
The spring rates for the TSW V3's mentioned above are correct. Yes, they're too soft for a track-only application, yet they're a bit firmer than stock. I believe the stock R53 sport springs were progressive and started at about 160lbs, but I'm not positive. The TSW's aren't a whole lot stiffer than stock, but they're a linear spring so the response is much more predictable. Track-specific applications use much stiffer springs. Coilovers use smaller diameter springs to save weight and shocks matched to the specific spring rate. Also, the smaller diameter coils are built in standard diameters, lengths, and spring rates, so they can be shared over a variety of applications. Source: evolutionm.net - View Single Post - Spring rate conversions kg/mm to lbs/in kg/mm to lbs/in ----------------------------- 16 = 896 15 = 840 14 = 784 13 = 728 12 = 672 11 = 616 10 = 560 9.0 = 504 8.5 = 476 8.0 = 448 7.5 = 420 7.0 = 392 6.5 = 364 6.0 = 336 5.5 = 308 5.0 = 280 4.5 = 252 4.0 = 224 3.0 = 168 2.0 = 112
It seems like you're confusing the KW V3 coilovers from TSW, V3 standing for Variant 3 which often have customizable rates that are pretty firm, and the TSW V3 springs, meaning version 3 as they have had 2 previous versions. They are not the same thing. The springs are much less expensive and are a nice little upgrade while the coilovers cost a bit more and are a pretty darn big upgrade. KW coilover springs have the rates printed on them by the way (in Newtons/mm i think). - Andrew
Yeah, I was--I assumed the OP had the V3 coilovers, and was asking what the "standard" spring rates were. Looks like it's a "spring only" question in retrospect.
That would kick ass if they could make the OEM fitment springs in whatever rate I want to fit Koni Yellows. 250 lbs/in front and rear with maybe a 5mm drop front and rear and that's it. That would rock with Koni Yellows. But i know they'd need a minimum order for that and no one else wants a spring that doesn't lower the car much. - andrew
Yes we are talking springs here not coil-overs. For an R53 the drop with these springs is ~ 3/4" in the front and ~ 7/8" in the back. Also in the OP was a link to the specific springs under question, so no confusion...... Springs.
Yes these are linear rate springs, and that was not in question. I was just looking to verify the actual rate.