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      10-20-2014, 02:32 PM   #45
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Quote:
Originally Posted by Money2536 View Post
I've had it on my F80 for about a week now. I'm running 15mm front and rear and have it set as low as it will go. The ride is just a tad rougher than stock. I used to drive around most of the time in Sport mode, now I choose Comfort.

I'm going to move the rear up about a quarter of an inch. If you want to go low in the front, these probably aren't for you. I'll have some photos up in my Journal soon.
I am glad to hear that you enjoy them.
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      10-20-2014, 04:17 PM   #46
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      10-20-2014, 05:12 PM   #47
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Quote:
Originally Posted by cvc 22349a View Post
How is the stock strut spring perch removed and replaced with KW's threaded perches? And what's the purpose of the rear helper spring?
Shorter than normal spring lengths are used in the rear so helpers are there to keep the main springs under tension when the suspension is a full droop. And depending on what springs are used, it may allow the enduser to swap springs in matter of minutes.

I am sure you have seen our quick change spring kit(E8x E9x and will be the same for F3x and F8x)we brought to the market in 2009-10, it's the same idea.

http://www.m3post.com/forums/showthr...ighlight=quick
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      10-20-2014, 05:14 PM   #48
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Interested..Please PM me for pricing.

Thank you
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      10-20-2014, 05:18 PM   #49
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Interested..Please PM me for pricing.

Thank you
PM sent
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      10-20-2014, 07:13 PM   #50
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Quote:
Originally Posted by HP Autosport
Quote:
Originally Posted by cvc 22349a View Post
How is the stock strut spring perch removed and replaced with KW's threaded perches? And what's the purpose of the rear helper spring?
Shorter than normal spring lengths are used in the rear so helpers are there to keep the main springs under tension when the suspension is a full droop. And depending on what springs are used, it may allow the enduser to swap springs in matter of minutes.

I am sure you have seen our quick change spring kit(E8x E9x and will be the same for F3x and F8x)we brought to the market in 2009-10, it's the same idea.

http://www.m3post.com/forums/showthr...ighlight=quick
Thanks Harold. David did answer my question. It'll be interesting to know spring rates as that info becomes available. This looks like a good solution for those that want to retain oem dampers and lower the car a bit v just lowering springs that don't come with shorter bstops.
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      10-20-2014, 07:38 PM   #51
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spring rate

Once the spring rate becomes available to us we will let everyone know the specs.
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      10-20-2014, 08:01 PM   #52
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Exactly what I wanted to know! Thanks!!
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      10-20-2014, 08:18 PM   #53
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Let me know if you guys have anymore question. Thanks for the support.
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      10-22-2014, 02:22 PM   #54
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We did another KW HAS install and wanted to share a few pics. The customer plans to add a set of BBS wheels to his ride. Once he does the springs and fitment can be dialed in.

Note: These were taken immediately after install so the springs have yet to settle.

We also partnered with Enlaes to install the HAS on their new M4. Stay tuned for install photos, and the full photo shoot to be posted soon!










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      10-22-2014, 04:05 PM   #55
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Every time you want to adjust the height, you'll have to take off the wheels and adjust it right? sorry just making sure

Oh and can I get a price too please for f82 thanks!
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      10-22-2014, 05:00 PM   #56
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Quote:
Originally Posted by cvc 22349a View Post
Thanks Harold. David did answer my question. It'll be interesting to know spring rates as that info becomes available. This looks like a good solution for those that want to retain oem dampers and lower the car a bit v just lowering springs that don't come with shorter bstops.
When the rates and spring length are carefully matched to the dampers and proper compression travel is retained, there is no need for shorter bump stops.

E9x M3 guys had issues with H&R and Eibach springs with softer than normal rates and too much drop, then used E36 M3 bump stops as a band aid.
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      10-22-2014, 05:53 PM   #57
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Quote:
Originally Posted by HP Autosport View Post
When the rates and spring length are carefully matched to the dampers and proper compression travel is retained, there is no need for shorter bump stops. .
are there any that do this? I would imagine the drop would have to be very small to still work well with the OEM dampers in non ideal road conditions (IE the real world and most tracks)
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      10-22-2014, 06:29 PM   #58
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Quote:
Originally Posted by PokGuy View Post
Every time you want to adjust the height, you'll have to take off the wheels and adjust it right? sorry just making sure

Oh and can I get a price too please for f82 thanks!
PM'd pricing.

You do not have to take your wheels off to adjust.
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      10-22-2014, 06:38 PM   #59
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Quote:
Originally Posted by KennyPowers View Post
are there any that do this? I would imagine the drop would have to be very small to still work well with the OEM dampers in non ideal road conditions (IE the real world and most tracks)
Please feel free to PM so we don't take our discussion out of context.

For the F8x chassis there is nothing yet, but being worked on as I write this.

If you go to the E8x, E9x M and none M forums Swift has made springs with linear rates, not progressive, and very careful with how much to drop the car. There has been no issues with Swift bottoming out.
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      10-28-2014, 10:25 AM   #60
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Quote:
Originally Posted by Grubbs@TAG View Post



We recently received our first set of KW Height Adjustable Springs for our in house M4 code named "Black Betty".

To see the full history of this build click HERE

KW height adjustable springs kits are a great alternative to conventional springs. You don’t have to be satisfied with a fixed lowering as you can adjust the height with the KW height adjuster even after the kit has been installed. This works well for us since we like to swap wheels on our cars so frequently.

With these new height adjustable springs we expect the car have the ability to be lowered;

in mm:
Front: 15-30
Rear: 5-30

in inches:
Front: 0.6-1.2
Rear: 0.2-1.2

This will not only give us a more dynamic look but also the steering behavior and response of the standard dampers becomes more agile. All driver assistance systems and comfort features of an adaptive series suspension remain in tact which is a big selling point.


With conventional lowering springs you have to decide on the lowering from the beginning, but not with the KW height adjustable spring kits. Depending on the vehicle specific application you can change the lowering within the adjustment range with the threaded spring perch when the springs are already installed.


With the high quality finish as well as the KW height adjuster, the KW height adjustable spring kits delivery content always includes the vehicle-specific bump stops with dust protection system to protect your standard suspension against tear & wear caused by spray and salt.


Features of the KW Height Adjustable Spring Kit
- individual height adjustment of the standard suspension kit
- adaptive damper control remains active
- vehicle specific spring rates
- better steering behavior
- improved looks


Below is the unpacking followed by the install. Final ride height photo’s of the car to come soon!





























Here are the shots from the studio before they were installed. Everything is incredibly high quality and well built.























Initial Driving Impressions:

Our M4 is equipped with the Adaptive Suspension. In stock form there was a decent difference between all three settings but the “sport plus” mode was certainly firm. These new KW HAS are allowing us to keep the active dampers, and giving us the ride height adjustability that we are looking for. The ride in the normal “Sport” mode certainly firmed up from stock, but it really made the car feel much more stable, as it removed some of the bounciness the factory suspension had. The firmness is not uncomfortable though, in the short drive from San Diego to Newport Beach over the weekend, there was a few dips in teh highway that I know i have to prepare myself for (when i had the H&R Supersport Springs on), and in the KW’s still were more harsh, but it was a much sportier feel.

Overall, the ride is MUCH better than going with just standard springs. The ONE negative side we noticed, Being that we ran our 20x10 HRE P104’s up front, the new larger spring perch did not allow us to lower the car down to H&R Supersport Spring Level’s. The clearance between a 20x10 Front Wheel’s, combined with the 265/30/20 Pirelli Tires up front allowed us only to go about 1.2” lower than stock. For those that are interested in doing these springs and getting a significant drop, we recommend a 9.5” wide wheel up front with a lower offset.
















@David@TAG or @Grubbs@TAG
Could you guys provide any comment on my thread here?

Thanks
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      10-28-2014, 10:38 AM   #61
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What height is this second M4 with stock wheels?
And can someone explain the main difference between regular springs like Eibach or H&R and progression springs like this KW? I mean except the height regulation.
Are this springs better for the track days or not - this is the main question for me?
Tnx.
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      10-28-2014, 03:28 PM   #62
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We recently swapped out the Satin Bronze HRE wheels for a set of BLK 501 GTR Wheels in 20x9.5 / 11. These Wheels have a Matte Brushed Face with Polished Clear Lips. After making some adjustments with the wheel width and offset we were able to lower the car as far down in both the front and rear as the springs would allow. This gave us an incredibly low and aggressive stance (the stance we've wanted from the start).

Last weekend we did a BMW rally through the mountains near San Diego. We ran the car pretty hard to see how the suspension would hold up. We hit a couple bumps and pot holes while cornering that did cause the car to rub a little, but we weren't concerned. We may make some little tweaks but for now we are excited about the M4's current setup.


If you have any questions at all, please feel free to contact us by clicking HERE or PM for more details.




























Last edited by Gabe@TAG; 10-28-2014 at 03:41 PM..
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      10-28-2014, 03:35 PM   #63
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Looks fantastic and the stance is perfect!
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      10-28-2014, 03:48 PM   #64
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      10-28-2014, 03:51 PM   #65
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BLK

Pictures don't do justice! These wheels look so good in person on this M4.
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      10-28-2014, 11:50 PM   #66
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Absolutely love it.
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