[HP Autosport]

A pair of adjustable height rear spring platforms, designed to work with 60mm inner diameter coilover rear springs mounted in the stock spring location at the rear of a BMW E8x (1 series) or E9x (3 and M series). These are high quality products made by HPA right here in the USA, with easy adjustments. The thread used is self locking once any load is applied.

The material for the rest of the assembly is made up of black and HPA blue anodized aircraft grade aluminum alloy. These can be adjusted from a minimum of 0.5" thick to a maximum of 2.75" thick. These can be adjusted independently of each other and is great for corner balancing of your BMW.

This particular model has been optimized to run at the top of the spring on the back of a BMW E8x/E9x. The locating stub fits in the factory location and replaces the bulky factory locating stub/hat, which inhibits ride height adjustment with other similar rear ride height adjusters.

[AlterZgo]

Is this for use with stock rear springs and suspension? Can I use this to raise the rear of the car .25" to .5" or so?

[Alpina_B3_Lux]

Originally Posted by AlterZgo

Is this for use with stock rear springs and suspension? Can I use this to raise the rear of the car .25" to .5" or so?

+1

I'm looking for exactly something like that for my Bilstein B16 coilover (for the rear). The stock "bad roads package" which has plastic spacers similar to these here doesn't fit any more due to the coilover.

Alpina_B3_Lux

[HP Autosport]

The adjusters weren't designed for that purpose but I'll check fitment for you guys on Monday.

[IN54NITY]

Harold, you must have read the thread where I complained about KW's rear spring perch platforms weren't long enough for my taste. I have about 4 or 5 threads showing on the ~inside~ of the perches, this after a corner balance, and I'm still ~low~ in the back. How much longer are these than the KWs, if you know?

[IN54NITY]

>designed to work with 60mm inner diameter coilover rear springs

Wait a minute, what coilovers have this spec?

Edit: BTW, the picture in my "garage" of my rear suspension were taken immediately after I did the install, and before I raised them and corner balanced. With the collars at the position in that picture (one thread of the platform coming through the collar), my rear end was absolutely slammed.

[HP Autosport]

Originally Posted by aleckzandr

Harold, you must have read the thread where I complained about KW's rear spring perch platforms weren't long enough for my taste. I have about 4 or 5 threads showing on the ~inside~ of the perches, this after a corner balance, and I'm still ~low~ in the back. How much longer are these than the KWs, if you know?

These are a good 1" longer than the KW's and can be with other ID springs with adapters. KW is 61mm so these will work fine.

If you are looking for higher ride height from your KW, these are it.

[IN54NITY]

Sold. I'll be contacting you shortly. I don't need go any higher, but I do want to ride on more thread contact! Would you recommend thrust sheets? Or do I need to wait for the Swift spring purchase?

[IN54NITY]

Very happy you made a great product, not very happy at all (more like ) that KW didn't make 'em like this in the first place. You AST guys reading this?

[HP Autosport]

Originally Posted by aleckzandr

Sold. I'll be contacting you shortly. I don't need go any higher, but I do want to ride on more thread contact! Would you recommend thrust sheets? Or do I need to wait for the Swift spring purchase?

Yes, you can add Swift thrust sheets now to you exisiting KW rear springs, they will work a little better.

If you are going to spend the labor replacing the height adjuster, it may be a good time to replace the rear springs of a differnt rate(if you are considering that now) as well to save on labor.

[Alpina_B3_Lux]

Originally Posted by HP Autowerks

The adjusters weren't designed for that purpose but I'll check fitment for you guys on Monday.

Update for my Bilstein coilover?

Alpina_B3_Lux

[HP Autosport]

Originally Posted by AlterZgo

Is this for use with stock rear springs and suspension? Can I use this to raise the rear of the car .25" to .5" or so?

These will not work with oem springs as they have a pig tail ends, these height adjusters require flat seated springs.

[blisstik]

How do you adjust these while the springs are on the car with load? That doesn't seem easier than using spanner wrenches with notches.

[The HACK]

Originally Posted by blisstik

How do you adjust these while the springs are on the car with load? That doesn't seem easier than using spanner wrenches with notches.

You can't adjust ride height when the springs are loaded. Hundreds of pounds of force on the adjusting collar means there's no way to turn them, regardless of the design.

[HP Autosport]

Originally Posted by The HACK

You can't adjust ride height when the springs are loaded. Hundreds of pounds of force on the adjusting collar means there's no way to turn them, regardless of the design.

We have a way around it, regardless of spring rates you can run on the back of the E82/9x chassis.

The thrust sheets do help a bit. Sometimes some dry lube on the threads of the height adjusters can do wonders and don't attract dust or dirt down the road.

Below is the setup we run on our 135i with helper springs and radial thrust bearings. Adjustment is easily made with this setup and the springs can be changed out in a matter of seconds.

For those like to tinker with their vehicle's ride height frequently, I recommend getting the radial thrust bearing to make the adjustments much easier.

[lawwailok]

Originally Posted by The HACK

You can't adjust ride height when the springs are loaded. Hundreds of pounds of force on the adjusting collar means there's no way to turn them, regardless of the design.

it is possible, but just need a lot of elbow grease. i found out a way to adjust mine, with a help of friend using a channel lock holding the black thread collar, and i use another channel lock to clamp and twist the blue adjusting collar.

it could be done but just be ready to spend some elbow grease, once you get the momentum when turning it, it's not too bad.

but like blisstik mentioned, a spanner wrench with notch would be a better choice =)

[HP Autosport]

Originally Posted by lawwailok

it is possible, but just need a lot of elbow grease. i found out a way to adjust mine, with a help of friend using a channel lock holding the black thread collar, and i use another channel lock to clamp and twist the blue adjusting collar.

it could be done but just be ready to spend some elbow grease, once you get the momentum when turning it, it's not too bad.

but like blisstik mentioned, a spanner wrench with notch would be a better choice =)

If you like to tinker with ride heights much, you may want to consider the component I mentioned in the post above.

[Dymag]

Hello, I have Dinan springs and want to slightly raise my rear height. With these Rear Ride Height Adjusters, would I be able to raise one side by about 0.5 inch and the other side a bit more ?

Thanks, - Ray -

Originally Posted by HP Autowerks

A pair of adjustable height rear spring platforms, designed to work with 60mm inner diameter coilover rear springs mounted in the stock spring location at the rear of a BMW E8x (1 series) or E9x (3 and M series). These are high quality products made by HPA right here in the USA, with easy adjustments. The thread used is self locking once any load is applied.

The material for the rest of the assembly is made up of black and HPA blue anodized aircraft grade aluminum alloy. These can be adjusted from a minimum of 0.5" thick to a maximum of 2.75" thick. These can be adjusted independently of each other and is great for corner balancing of your BMW.

This particular model has been optimized to run at the top of the spring on the back of a BMW E8x/E9x. The locating stub fits in the factory location and replaces the bulky factory locating stub/hat, which inhibits ride height adjustment with other similar rear ride height adjusters.

[HP Autosport]

Originally Posted by Dymag

Hello, I have Dinan springs and want to slightly raise my rear height. With these Rear Ride Height Adjusters, would I be able to raise one side by about 0.5 inch and the other side a bit more ?

Thanks, - Ray -

Hi Ray,

Yes, you can. Just by adding the height adjuster alone will probably get you the 0.5" you need and since they are adjustable, you can get go much higher. If you are thinking about upgrading your rear springs, this would be a good time as well.

Harold

[MartinS]

Is it KW coilovers that have 61mm inner diameter?

Is it the same with KW coil springs?

And how do you adjust it? I don't see any tap for the tool to grab?

How much are they?

[HP Autosport]

Originally Posted by MartinS

Is it KW coilovers that have 61mm inner diameter?

Is it the same with KW coil springs?

And how do you adjust it? I don't see any tap for the tool to grab?

How much are they?

Yes, KW use 61mm ID springs.

These were designed around the Swift 60mm ID springs.

No tool needed as these are recommended to be installed with Swift thrust sheets and you will be able to turn the adjuster by hand in most cases.

Here is a link to our web store with price:

http://www.hpashop.com/product.sc?pr...categoryId=238

[Ctebbs5]

I have stock springs in the rear and would like to raise it a bit. What options as far as spring spacers do I have for stock springs?