http://www.turnermotorsport.com/image/suspension/susp_e36m3_pss9_lg.jpg

Introductory pricing and free Ground shipping to the lower 48 states until the first shipment runs out. We currently have 14 kits in stock.

Click here for details. (http://www.turnermotorsport.com/html/detail.asp?PRODUCT_ID=GM5-B567-HO)

Your web site mentions 96-99 M3s. I'm ignorant enough to wonder why not the 95's?

DBinMV

Your web site mentions 96-99 M3s. I'm ignorant enough to wonder why not the 95's?

DBinMV

That is the information we have from Bilstein. We have yet to test fit to a 95, so until we do we will post their info. I assume there is a slight fitment issue due to the spindle angle differences in the 95, but I don't know that for sure.

Wow at long last pss9s available for us. Wish I had the loot I'd be picking up a set right now. Well I guess I'd have to wait a little while until you have them available for 1995 Cars. :)

What are the spring rates on the springs?

How would these compare to something like the GC school/track kit with 450/525 rates (i think that's what they use)?

What are the spring rates on the springs?

Both F&R are progressive.
Working rates:

Front: 460 LBS
Rear: 680 LBS

http://www.turnermotorsport.com/image/suspension/susp_e36m3_pss9_lg.jpg

Introductory pricing and free Ground shipping to the lower 48 states until the first shipment runs out. We currently have 14 kits in stock.

Click here for details. (http://www.turnermotorsport.com/html/detail.asp?PRODUCT_ID=GM5-B567-HO)


Blurb from the Turner website says "This is the perfect dual purpose street/track suspension for your M3!" Front: 460 LBS, Rear: 680 LBS

Very nice set-up, but Yikes...with spring rates as high as these, your talking about one stiff ride on the street!

Blurb from the Turner website says "This is the perfect dual purpose street/track suspension for your M3!" Front: 460 LBS, Rear: 680 LBS

Very nice set-up, but Yikes...with spring rates as high as these, your talking about one stiff ride on the street!

If you're old. :)
But seriously, it is a progressive rate spring, around town driving won't be comprimised too much at all.

We are down to 8 kits.

So the highest setting, is one inch lower than stock?

So the highest setting, is one inch lower than stock?

Correct.

If you're old. :)
But seriously, it is a progressive rate spring, around town driving won't be comprimised too much at all.

We are down to 8 kits.

I AM old..er! Ferrrari's aren't expensive either, unless your poor :)

I've been shopping around for a new susp. for some time now, and most of the streetable progressive springs are in the neighborhood of 200 to 250 front and 300 to 350 rear...this kit nearly double thats, so progressive or not, I find it hard to believe that is wont be a significantly firmer ride. Many with only Konis SA's and Pro kits H&R OE/Sports claim a firmer "but not too harsh" ride. I'd like to believe, but the number just dont' add up.

If you're old. :)
But seriously, it is a progressive rate spring, around town driving won't be comprimised too much at all.

We are down to 8 kits.

I AM old..er! Ferrrari's aren't expensive either, unless your poor :)

I've been shopping around for a new susp. for some time now, and most of the streetable progressive springs are in the neighborhood of 200 to 250 front and 300 to 350 rear...this kit nearly double thats, so progressive or not, I find it hard to believe that is wont be a significantly firmer ride. Many folks with only Koni SA's and Pro kits or H&R OE/Sports claim a firmer "but not too harsh" ride. I'd like to believe, but the rates just don't support a streetable ride. It's all relative though.

I AM old..er! Ferrrari's aren't expensive either, unless your poor :)

I've been shopping around for a new susp. for some time now, and most of the streetable progressive springs are in the neighborhood of 200 to 250 front and 300 to 350 rear...this kit nearly double thats, so progressive or not, I find it hard to believe that is wont be a significantly firmer ride. Many folks with only Koni SA's and Pro kits or H&R OE/Sports claim a firmer "but not too harsh" ride. I'd like to believe, but the rates just don't support a streetable ride. It's all relative though.

Those #'s are from Bilstein North America in California. We are going to put the springs on our tester, and double check with another tech from Bilstein Germany. I will post what we find out.

Okay, just got off the phone.

Those rates are only slightly stiffer than the normal 325/328 PSS9 kit. Nobody has ever had a problem with that kit being too stiff on the street in the 5+ years we have been selling it. Also, the rates I was given that I posted above, those are the MAX rates of the progressive rate spring.

Bilstein R&D compared this to a dbl adjustable Koni c/o kit.

They said the stock suspension "Good level of isolation. Understeer at limit, with slight body role. High level of head toss."

With the Bilstein Kit Installed "With GM5-B576-H0 kit installed at the softest setting handling is similar to stock but body role rate is decreased greatly."

They said the middle setting caused the car to handle much more neutral, but the ride was still comfortable. They recommend middle settings for tracks or roads with small bumps/undulations.

At the stiffest setting the car handled incredibly on smooth surfaces.

They claim that balance, role rate and isolation are all better than Koni kit.

Couple of amateur questions I hope you don't mind answering for me Doug.

1. Can you explain what you mean when you say the springs are "progressive"?

2. What do the spring rate numbers front and rear actually mean? Am I correct in assuming the higher the spring rate the stiffer the ride?

Couple of amateur questions I hope you don't mind answering for me Doug.

1. Can you explain what you mean when you say the springs are "progressive"?

Sure. Progressive rate means that there is a variable rate increase throughout the spring's working range. In other words, a progressive rate spring changes as it is compressed. Driving straight down the road, the spring will be soft, and comfortable. As you push the car through a corner, the rate increases.

2. What do the spring rate numbers front and rear actually mean? Am I correct in assuming the higher the spring rate the stiffer the ride?

That is correct. The higher the rate the stiffer the spring. The numbers above are the MAXIMUM rates. So these #'s shouldn't scare anyone off if they plan to use this kit on a street car.

Thank you very much for the explanation. When I have the funds available I'll be giving you a call. :)

That is the information we have from Bilstein. We have yet to test fit to a 95, so until we do we will post their info. I assume there is a slight fitment issue due to the spindle angle differences in the 95, but I don't know that for sure.


Is there any way to test fit the kit on a 95 and see if it will fit? How is this kit compared to the H&R coilover kit regarding spring rates?

Thanks,

rob