Cut coils...revisited.

[Jolly Roger]

Has anyone that cut 1 coil had to go to a lower bump stop in the front to prevent bottoming?
Does the front have bump stops?
(Had the shop install my springs so I don't know).
Shared part #'s of stops if needed would be great.
Thanks.:)

[justbob]

When you lower the rear to match the front then yes you replace them (on the rear) if you bottom. They are nothing special, just energy suspension ones found in stock at advance. There is none on the front that I recall.

Also if you have an aftermarket diff cover you may need shorter sway bar links out back as the bar sometimes contacts the cover or trim the existing ones like I did. Once again IF it's an issue.


Builder Of Badassery

[lifespeed]

Typically the bump stop on a coilover is found around the shaft between the shock body and the upper mount plate. I don't recall seeing any bump stops on the front control arms.

Edit: here is a good option (http://www.mercurymarauder.net/forums/showthread.php?p=1323016#post1 323016)for shorter rear bump stops if you lower it.

[Jolly Roger]

Ok,
problem is in the front.
Car rides and handles great as long as the roads are level,
but it seems that going over a 1" imperfection in the road feels like a 4" deep pothole.:(
Really hits hard for such a small road dip.
Feels like it's bottoming out but I'm sure it's not with just one coil cut.
Considering going back to the factory height coils.
Anyone else have this problem?
Solutions?

[03Merc]

Ok,
problem is in the front.
Car rides and handles great as long as the roads are level,
but it seems that going over a 1" imperfection in the road feels like a 4" deep pothole.:(
Really hits hard for such a small road dip.
Feels like it's bottoming out but I'm sure it's not with just one coil cut.
Considering going back to the factory height coils.
Anyone else have this problem?
Solutions?


I have the P.I. Springs (which are much thicker) and 1 coil cut. Car rides good and bumps feel a little worse that factory springs and height but not much worse to complain about. I cut 2 coils b4 on My Grand Marquis springs and the bumps felt so terrible! I think the 05+ P.I. springs are more heavy duty and work better. See if You can locate a pair and go from there.


2004 - MM 1618 - DTR 537

[Curless]

I have the PI springs in my car as well, one rung cut... no issues what so ever. But htis leaves me at stock ride height...

[lifespeed]

No mention of the shocks in this thread? They are what control wheel movement and will determine ride quality in conjunction with the spring rate. When you increase spring rate you have to increase damping. That seems to get overlooked . . .

There is no way increasing your spring rate 20% is responsible for destroying the ride quality by itself. The car is telling you the shocks don't work with the spring.

[Jolly Roger]

No mention of the shocks in this thread? They are what control wheel movement and will determine ride quality in conjunction with the spring rate. When you increase spring rate you have to increase damping. That seems to get overlooked . . .

There is no way increasing your spring rate 20% is responsible for destroying the ride quality by itself. The car is telling you the shocks don't work with the spring.

Factory shocks 31,000 miles.;)

[lifespeed]

Factory shocks 31,000 miles.;)

And 12 years. If your combination worked you wouldn't be complaining. ;)

Let's assume for a moment that your 12-year-old shocks still work well (which I think is unlikely, but for the sake of argument). You still increased the spring rate without increasing the damping. And you say the ride is bad . . .

[BODYMAN]

1 MM with full coil cut & stock shocks is was pretty much like you have described. so my other MM I cut slightly morethen 3/4 of a coil just little less then full coil & swaped to KYB's frt shocks the car rides awesome. No more of that hitting a crevice in road & feeling like I hit a sink hole. Best choice I made in regards to lowering my car. The same pot hole in my area in the full coil cut & stock shocks was horrible, hit same pot hole after changing to 3/4 coilcut & KYB's & was 500% better.

[BODYMAN]

No mention of the shocks in this thread? They are what control wheel movement and will determine ride quality in conjunction with the spring rate. When you increase spring rate you have to increase damping. That seems to get overlooked . . .

There is no way increasing your spring rate 20% is responsible for destroying the ride quality by itself. The car is telling you the shocks don't work with the spring.

+1 on that. Shocks aren't happy. Change to a aftermarket you may find it improves youre ride.

[Jolly Roger]

Ok guys,
not looking to argue,
looking for a solution as my original post states.
Points well taken.:o
Next step will be KYB shocks.
Will update thread when new shock installation and test drive is complete.
Thanks to all that responded.

......Anybody know where the best price can be found for KYB shocks??

[BODYMAN]

Try the Shock Warehouse. Were best price I found on KYB's but that was a few years ago.http://www.shockwarehouse.com/index.cfm?mode=make&type=C&utm_source=SW+Cust&utm_campaign=c2cd24c6fd-koni_end_kyb_begin8_27_2015&utm_medium=email&utm_term=0_5ce5278b9b-c2cd24c6fd-16163213

[lifespeed]

KYB makes two versions, you'll want the "heavy duty" version with more damping. Rock Auto has them also.

[Jolly Roger]

KYB makes two versions, you'll want the "heavy duty" version with more damping. Rock Auto has them also.

Part #'s by any chance?

[Jolly Roger]

KYB makes two versions, you'll want the "heavy duty" version with more damping. Rock Auto has them also.

Rock Auto only lists the rears from what I can see.:(

[Krytin]

Look under suspension - "shock absorber" for the rears and "strut" for the fronts - you'll find KYB's for both!

[Jolly Roger]

Look under suspension - "shock absorber" for the rears and "strut" for the fronts - you'll find KYB's for both!

Will do.;)

[1Marauder]

KYBkyb has a discounts parts site. So other folks do not u sell them. Ask for the KIT if they have it for the back. And yes, I have the bumps stops... I bought the shorter ones, and after reading all- will never cut mine down that far.

[Fly007]

Just ordered KYB from rock, only showed one option for KYB under "increased handling" PN 551602, hopefully that is the HD you speak of. Was planning to cut 1 coil and install the new struts next weekend but after reading this thinking of sticking with the 3/4 coil cut.

[GetMeMyStogie]

When people cut 1 coil from the original spring, do you cut it from the soft end (where the coils are tightly wound) or from the stiff end (where the coils are far apart)?

[1Marauder]

Cutting only 1/2 coil tommorow... Adding HD KYB and addco sway bar w oiled clamps... Cam bolts and car fixed alignment specs.... Can't sleep I am so excited!

Will post up after 2pm tommorrow.

[Krytin]

When people cut 1 coil from the original spring, do you cut it from the soft end (where the coils are tightly wound) or from the stiff end (where the coils are far apart)?

From the top of the spring.

[Jolly Roger]

Cutting only 1/2 coil tommorow... Adding HD KYB and addco sway bar w oiled clamps... Cam bolts and car fixed alignment specs.... Can't sleep I am so excited!

Will post up after 2pm tommorrow.

Not sure if just 1/2 a coil is worth the trouble. JMHO.;)

[justbob]

Not sure if just 1/2 a coil is worth the trouble. JMHO.;)


It is if you love doing things twice!


Builder Of Badassery

[Fly007]

Are the cam bolts a necessity when cutting 3/4 - 1 coil?

[1Marauder]

Don't want 1 plus inches drop. Hoping for 1/2 to 3/4 inch drop. With the add of addco sway, Kybs... And the alignment, I think it will be just right for me. My black is already 1/2 lower in front than my silver (same tire size).

It may have been lowered a little befor I bought it.

I've ridden in a 1.5 lowered car, and imho it was far too low fand far too harsh a ride for me.

To each his or her own yes? I never want to bottom out on a curb stop.

When you see it, I promise you will like it!

And even cutting a half inch is far easier when changing out everything.





I am old

[justbob]

Mine dropped 5/8" with one cool cut. It took about a year for it to settle close to an inch. Every car drops differently depending on mileage and driving conditions over the years. I.E. Potholes/city vs. highway.


Builder Of Badassery

[Jolly Roger]

These 8 boxes arrived at my door in just 2 days from Rock Auto as if by majic.:D
Don't forget to use the 5% discount code.

[1Marauder]

What is the code???? I am next!

[Jolly Roger]

What is the code???? I am next!
Code is listed in the venders section of MM.net under Rock Auto.

Sent from my LG 4G using Tapatalk

[Jolly Roger]

Ok,
shock install complete.
1st - let me say how hard it is to type this while kicking myself for paying to have my cut coils installed a couple of week ago.:mad:
2nd - total front spring R&R was about 2 hrs. same as the spring job would have been. Rears were about 45 mins. 1 hr. tops.
As someone else said (eazy peazy).
3rd. - ride is greatly improved .
The bumps that were driving me crazy after the cut coils were installed are now just routine.
4th - DON'T do the cut coils exchange without changing the shocks at the same time to at least KYB's. (JMHO.)
Thanks to all for the suggestions.
Happy Marauding:D

[Fly007]

http://images.tapatalk-cdn.com/15/09/05/99bcc6d69bc34927b5d435b20c4121 ff.jpg
There it is, cut 1 coil in front, adjusted rear, new KYB shocks and struts, new drilled and slotted rotors with performance pads at all 4 corners all parts compliments of Rock Auto. Now it's alignment time!


Sent from my iPhone using Tapatalk

[Davmarauder93]

Question..... how do you lower the rear??

[fastblackmerc]

Question..... how do you lower the rear??

Adjust the switch on the Watts link.

[Jigginadeal]

I saw here somewhere new specks for the alignment once a coil has been cut out. You may want to search for them.
Late!