Massive - e30 M3 roll center spacers

[Massive Lee]

Offering a variety of three different roll center spacers for e30 M3s. Production is currently on and parts will be available until May 24 at a special price, until they start shipping. After this intro sale, price will $20.00 extra.

13mm spacers - $80.00 usd/pair + $10.00 usd shipping + 4% Paypal charge = $93.00 usd
26mm spacers (as pictured) - $90.00 usd/pair + $10.00 usd shipping + 4% Paypal charge = $104.00 usd
26mm spacers with 16mm offset (increased track) - $100.00 usd/pair + $10.00 usd shipping + 4% Paypal charge = $114.00 usd

Parts are available with black or gold anodizing. Kit includes all bolts.

[Massive Lee]

[Gooch]

I want these. Are the prices in the first post the updated prices (since it's after the 15th?)

[Eric]

hi Lee,

I'd like a set of offset spacers, as well as a no carpet dead pedal.

can i buy/ship together? and i don't do paypal, can i send a check?

[Van Westervelt]

Those offset units scare me.

[Massive Lee]

Postd prices will hold until Sunday. Which is when I should have shipped all pre-ordered units. Then reglar price will apply.

I can ship together some parts and that would save money on shipping.

To Got e30? - What scares you?

[CorvallisBMW]

lulz, I bet 1% of people on People on R3V know what 'roll center' means. Still, Good for you Lee for offering them! This is a real way to improve handling. Check this out:

http://en.wikipedia.org/wiki/Roll_center

[Massive Lee]

Roll center spacers are to be used on heavily lowered M3s to restore suspension geometry, and therefore get rid of bumpsteer. The offset units are for racing only. They increase camber, widen the track, but won't allow full steering lock unless the splash panel was slightly altered (hammered).

Cars with control and steering arms at horizontal position when resting will benefit from roll center spacers.

Installation of the offset units

#1 - You need to slightly grind four of the 25mm cap screws so that they fit in the spacers' bore. 2 per spacer.


#2 - Apply a bit of Loctite on the bolts. Slide the spacer onto the bottom of the strut. Use the stainless shims on the outer bolts, while the "shaved" bolts go into the bores. Bolts are 12.9 grade. So the recommended torque value is 28-29ft.lbs


#3 Install the Ackerman arm, use the four remaining cap screws and the high collar locking washers. No need to use Loctite.


#4 Finished result

[Van Westervelt]

What grade aluminum are you using on these?

[Danny]

Thanks for the explanation. I had no idea what these were.

[Massive Lee]

What grade aluminum are you using on these?

North American-made 6061-T6 aircraft grade. I tried Cheddar but it didn't hold well.

[thundering02]

lulz, I bet 1% of people on People on R3V know what 'roll center' means. Still, Good for you Lee for offering them! This is a real way to improve handling. Check this out:

http://en.wikipedia.org/wiki/Roll_center

Few more links that I personally think will help a little more.

http://www.neohio-scca.org/comp_clinic/hand_out_reprints/Vehicle%20Dynamics2007.pdf

(some visual there)

http://www.circletrack.com/techarticles/front_roll_center_location_chassis_measurements/index.html

[E-Thirty]

Is there any solution for the rear suspension as far as restoring geometry on lowered e30's?

Edit: That's available or possible for mear mortals.

[erik325i]

Is there any solution for the rear suspension as far as restoring geometry on lowered e30's?

Edit: That's available or possible for mear mortals.

Shorter rear subframe bushings.

Erik

[Massive Lee]

Is there any solution for the rear suspension as far as restoring geometry on lowered e30's?

You can raise the subframe by 12mm. That will take care of camber.
Or you can weld adjusters.