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Suspension BC coilovers installed (how-to & feedback)

Suspension Springs, struts, coilovers, sway-bars, camber plates, and all other modifications to suspension components for Cooper (R50), Cabrio (R52), and Cooper S (R53) MINIs.
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Suspension BC coilovers installed (how-to & feedback)

  #76  
Old 03-01-2008, 01:13 PM
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Nice write up!
 
  #77  
Old 03-03-2008, 08:24 AM
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Cor liked these so much that we carry and sell them now!
 
  #78  
Old 03-05-2008, 09:05 PM
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Great write up. What wheel/tire combo are you useing? Psi? Do you have a g-tech or anything else that could give an idea to what kind of skid pad hold these are capable of?

Thanks, Dan
 
  #79  
Old 03-05-2008, 09:58 PM
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STREET: I run BFG KDW2 (215 / 45 / 17) ASA AR1 wheels 42 ET 7.5 wide (33 psi f & r)
2mm spacer on the front and 8mm spacer on the rear.

AUTO - X: I run Hoosier A6 (225 / 40 / 17) Enkie, NT03+M 45 ET 7.5 wide
15mm spacer on the front and NO spacer on the rear.
( I start at about 40 or 42 f & R and do serious temp, pressure & roll checks ... )
Last event was LOW adhesion and finished the day at 36 f 34 rear .. right before run

TRACK: R6 same set up as above.

(Rear arches and inner liners are modified !)

Alignment
FRONT
AUTO - X
-2.6 camber front
4.6 caster
.01 toe in
Tow

Street and track I pull just over.5 out of the camber and this then gives me a bit of tow in.

REAR
AUTO - X
-1.6 camber
0.00 tow

H Sport COMP rear bar Stiffest at Auto-X
sometimes leave it there for track (If short track & and tight turns)
move to mid if longer course and more open turns.

OEM front bar with adjustable end links ... that is where I did my corner balancing as they are about 5 degrees UP from horizontal (a bit more on drivers front.)

I DON'T daily drive this !

YES ... I do have a G-Tech but have not logged G ratings

I have found that for some reasion I just seem to start to stiff on the suspension
(I am an ex motorcross racer who liked get BIG air and was HARD on front suspension)
I was starting at 20 front and rear (30 being stiffest)
Looking at photos and the amout of rear wheel inner lift ... and STILL understeer...I went softer up front on the compression.

Now I start at 15 f 20 rear .... VERY much improved.
On a high tac auto x with 38 psi F ... NO understeer ,,, and I am often a bit agressive.

My system has 8kg springs front AND rear

PS... then move to 12 / 12 for the ride home
 

Last edited by COR BLMY; 03-05-2008 at 10:13 PM.
  #80  
Old 03-05-2008, 10:22 PM
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Cool, thank you for your feedback. Let us know if you get some info from the g-tech.
 
  #81  
Old 03-13-2008, 08:25 AM
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OK. I'm playing around with my BCs, and want to make sure that I'm absolutely clear on the ride height issue...

First off, I don't understand how adjusting the spring perches changes ride height. Isn't ride height entirely dependent on how far the cylinder is screwed into the bottom?

Right now, my bottoms are as low as possible, and so are the lower spring perches. This still isn't giving me enough room to screw the springs low enough to be "droopy" or loose on their perches. But they're linear, so it doesn't matter, right? (There's still plenty of spring "travel" so to speak.)

Also – I only have the rears in so far, and the ride height is pretty underwhelming. It's about the same as the lowering springs I've used, h-sports and konis....? It's OK, but I wasn't expecting to be using the lowest possible height since I'm not looking to slam the car.
 

Last edited by RedSkunk; 03-13-2008 at 08:28 AM.
  #82  
Old 03-13-2008, 09:33 AM
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It took a lot of phone calls "after" I bought my Megans to find out that they will only drop the car 1.5 inches. (This holds true for the BC's as well) ! They do not list this info on there sites and I have yet to talk to a dealer that actually knows what the drop really is for the Mini Coopers. I know the Megans of old would drop the car a great deal more but that is not the case with the redesigned shocks and springs.
 
  #83  
Old 03-13-2008, 10:03 AM
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If the lower is body all the way into the lower perch that is the lowest ride height ...about 1.5"

BUT ...
you can actuallly ower it a bit more 2 different ways.
1. As you mentioned you can back off the preload ..I do not sugust NO preload.
2. Also the clamp that holds the brake line and the signal wires bracket does stop you from screwing the body all the way down.
If you remove that and use a longer bolt and attach it to the outer part of the coilover body (not the threads) ..you will drop about 1/4" more at the coil over ... that translates to about 3/8" maybe more at the wheel arch
 
  #84  
Old 03-13-2008, 10:05 AM
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Also if just installed .... wait a bit ... the springs will "work in "
 
  #85  
Old 03-13-2008, 10:41 AM
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So, we cannot slam are cars like we used to with the Megans and BCs???
 
  #86  
Old 03-13-2008, 10:42 AM
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Good info COR BLMY ! I know that for me I have plenty of drop on the rears, it's the fronts that I wish I could drop just a bit more or a least have the option to drop a bit more . Like you said, I think that after a few hundred miles or so, it will drop into place a bit.
 

Last edited by pauliekeys; 03-13-2008 at 10:45 AM.
  #87  
Old 03-13-2008, 11:35 AM
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i've had mine for thousands of miles now and they haven't dropped at all. but they did soften up quite a bit during the first 500 miles.

i was expecting more drop than i got. it's only about 1.15-1.3", NFW 1.5"

with the front tube threaded all the way down until it bottoms, there is still about .1" to .2" between the top of the tube lock nut and the bottom of the perch lock nut with the top perch nut set at the factory location.

on the rears, removing the sway bar bracket and letting the tube bottom out will only gain you about .1" to .2" drop. i was all set to do this, but after seeing the minimal gain, i didn't bother.

but i love them! the ride is firmer, but the handling gains are more than worth it for me.....
 
  #88  
Old 03-13-2008, 11:50 AM
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I just got Megans installed yesterday by Danny at MINICorsa. Combined with my Nitto NeoGens 215/45r17, I absolutely love the feel. We actually raised the rears to compensate for the excessive drop I had. Fronts were lowered only a few turns. It's not slammed, but after having driven for the past several months on 15's where I scraped every speed bump and driveway, I'm glad to have some ride height back, lol.







 
  #89  
Old 03-13-2008, 01:36 PM
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Looks awesome Richard. Glad you found something you liked!!!!

What happened to your gas cap? haha
 

Last edited by Minifiend; 03-13-2008 at 01:41 PM.
  #90  
Old 03-13-2008, 01:49 PM
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Thanks Matt! Haha it was at the powder coater when I took the photo. I picked it up this morning, so it's back and BLACK satin now, lol.

I just glued on my Strassentech spoiler lip a couple of hours ago too, so once that's fully cured, I'll take some pix of everything. =)

Richard

Originally Posted by Minifiend View Post
Looks awesome Richard. Glad you found something you liked!!!!

What happened to your gas cap? haha
 
  #91  
Old 03-13-2008, 02:45 PM
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Looking good Richard ! For some reason I thought you already had coilovers ? I just got mine last month. Blair put mine on for me, well I help a little (very little) lol ! It's taken a long time to get them set right(almost a month) but I'm pretty happy with them right now. Had the car aligned last week so every thing seems to be in place now. Took the car for a hard run with the WCM gang this last weekend and I'm happy to say nothing fell off ! LOL ! It's nice to be able to change the front camber. I could really feel the negitive 2 degrees up front. The rears are set at neg 1.5 with zero toe front and back. Here's a shot of Boo with the Megans !

 
  #92  
Old 03-13-2008, 02:56 PM
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Looking really sharp Paulie! I like it!!!

Naw coilovers are new for me. I had Koni FSD's, H&R Greens, and IE Fixed camber plates--the whole combo is now in the marketplace, lol for a great price.

Although I've only had them on for a day, I'm very pleased with how they feel. Now that I've got everything adjustable (lower control arms, endlinks, camber plates)--I'm going to get an alignment ASAP.

Richard

Originally Posted by pauliekeys View Post
Looking good Richard ! For some reason I thought you already had coilovers ? I just got mine last month. Blair put mine on for me, well I help a little (very little) lol ! It's taken a long time to get them set right(almost a month) but I'm pretty happy with them right now. Had the car aligned last week so every thing seems to be in place now. Took the car for a hard run with the WCM gang this last weekend and I'm happy to say nothing fell off ! LOL ! It's nice to be able to change the front camber. I could really feel the negitive 2 degrees up front. The rears are set at neg 1.5 with zero toe front and back. Here's a shot of Boo with the Megans !

 
  #93  
Old 03-13-2008, 03:07 PM
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Yeah, I waited until everything settled and before I drove it hard to have the alignment done. I aligned the car from suggestions from others on NAM and M/U (neg 2.0 front 0 toe, neg 1.5 0 toe rear. I was very surprised to find that I was pretty much spot on with the amount of camber I had set on each side of the front of the car. It was a total guess at where I set the front. I had no idea that our cars are different from side to side, some more than others. I've got the rears set at 15 from soft and the fronts at 7 from soft. On the run this weekend I put the front at 10 from soft. The car handled really nice !

Side bar : I'm really liking the repaint of your rims Richard, They really set the car off nicely. I remeber seeing the pictures you showed us in your office and new that they would look really nice with the red !
 
  #94  
Old 03-13-2008, 03:12 PM
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The drop is actually O-K. We'll see if it settles some more.

And initial ride says they're niiiiiiiice.
 
  #95  
Old 03-16-2008, 01:21 PM
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Got the fronts on a few days ago, everything worked out OK.

 
  #96  
Old 03-16-2008, 01:53 PM
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Lookin Good !
 
  #97  
Old 03-16-2008, 03:07 PM
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meb or cor blmy

Cor thanks for the great review. I have installed shocks on the mini before so install isn't my concern. It's the set-up of the coilovers. Meb said make sure the about the bottom being screwed all the way in. does it come from factory like this? or will I have to adjust before putting on the car. I currently am running stock with H-sport springs and like this height. I believe about 1 inch below stock.

I am totally lost on how to adjust these.

There are 3 adjusting rings
A. the bottom most ring
B. the 2nd ring (I'm assuming the locking ring)
C. The ring next to the spring.


which of the three are locking rings and which are adjusment rings?

As in your instruction "A" locks and you adjust height with "B"

or

Can you adjust height with "A" and "B"
because I see no mention of the second ring next to your "B"

Hopefully I explained this correctly. I just don't want to set it up wrong and have my shocks fail. My Koni yellows only lasted a few weeks before the 2 fronts blew. (daily driver without abusive driving and no "large" pot holes hit.) I don't want to have to replace shocks again. Thanks for the help and sorry for the coilovers for Dummies question.
 
  #98  
Old 03-16-2008, 03:44 PM
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I was totally confuzzizled just looking at photos, but after getting the coilovers and playing with them for 5 minutes, it makes sense.

The bottom of the shock screws up / down. The lowest ring is a locking right for the bottom. The second ring is a locking ring for the top. And the top ring is the spring perch.

Screwing the bottom up or down adjusts ride height. Screwing the spring perch up or down adjusts the amount of spring (you've just looking to make this tight enough so the spring is properly seated).

Mine didn't come from the factory screwed all the way down. I had to.
 
  #99  
Old 03-16-2008, 04:26 PM
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Pleas PM me if you would like my phone and I will do my best to help you ...

"redskunk" is true to most of our customers ... when you see them it make much more sense.

The 2 upper lock nuts on the body are NOT ride height adjustors they preload and lock the spring .
 
  #100  
Old 03-16-2008, 07:13 PM
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Originally Posted by RedSkunk View Post
The bottom of the shock screws up / down. The lowest ring is a locking right for the bottom. The second ring is a locking ring for the top. And the top ring is the spring perch.

Screwing the bottom up or down adjusts ride height. Screwing the spring perch up or down adjusts the amount of spring (you've just looking to make this tight enough so the spring is properly seated).
Originally Posted by COR BLMY View Post
The 2 upper lock nuts on the body are NOT ride height adjustors they preload and lock the spring .
So why is it that I understand it as this?.....I can't actually raise or lower the car unless I pop the bottom of the strut out of the front hub assembly/control arm and screw the bottom tube up or down. Is this correct?

Here's a pic of the coilovers out of the box.....are the struts in the all the way down config? And if this is correct and I wanted to change the ride height at a later date, do I have to pop the strut out to do this?

 

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