killernoodle

Has anyone ever truly figured out if the rear shock towers are actually safe being load bearing for a coilover setup? Has anyone ever had any failures in that area? After all, that spot is just sheet metal meant to support the load from a shock, not the weight of the car.

Just curious, I'm interested in getting a set of D2/Ksport.

garrettg

iTrader: (1)

I believe the consensus is that it is fine as the lg kit installs this way.

I have the kw kit so no option to run it this way.

Onefast V

iTrader: (3)

Yes they are. LG motorsport setup utilizes the rear shock tower for its 4 corner cooilover and it is just fine. And LG knows what they are doing.

I have the D2 kit sitting in my garage that will be run in a 4 corner soilover setup but have more pressing issues to tend to as my first track day cause my radiator to puke its guts.

Breaking

I didnt see it posted anywhere in this thread but what spring rates are you running?
Also what sway bar set up?

Thanks

Onefast V

iTrader: (3)

he is running 600#F/650#R

Breaking

so thats like a 10.7kg and 11.6 if im not mistaken.
Reason for running stiffer in the back?
Most all my vehicles Run stiffer in front than rear.

garrettg

iTrader: (1)

The rate of motion is different between front and back(affecting the amount of spring rate seen by the wheel) so even though the rear is using a stiffer spring the wheel rate will be higher in the front of the car due to the extra leverage created by the spring position in the front suspension. I don't have the exact numbers but most spring kit's available for the V1 come with a higher rear spring rate or equal at all corners. However the kw v3 kit does not follow this rule and comes with a stiffer front spring but some including myself have opted for stiffer rear springs when using the kw kit to balance things back out.

If you moved the rear spring from the control arm to the coil-over location the rate of motion in the rear suspension would increase and running a stiffer spring in the back may not be the ticket.

Breaking

makes sense. Thanks.

Onefast V

iTrader: (3)

what garrettg said. to get the wheel rates to be similar the rear needs to run stiffer due to the spring being significantly more inboard in the rear than in the front.

If you move the spring to the shock/strut mount, you need to significantly reduce the spring rate by as almost 50% to maintain the same wheel rate.

EdmundGTP

Good thread.. I will be going this route if any of my shocks decide to give out. Are the D2 shocks rebuildable?

johnking3194

I read somewhere that the ksports where unable to have the hotchkis sway bars installed with them. I was wondering if that is true with d2's as well or if its just false all together.

Onefast V

iTrader: (3)

not sure why that would be the case. anymore information on why it doesn't fit?

Dmax/04V

Not sure if this is correct or not, but I'm running KW Variant 3 suspension and hotchkis sways no problems here.

johnking3194

I was considering the K=sports for a long time until I spoke with someone on this forum about them. i don't want to say who they are on here, but I'm sure they will chime in. Anyway the k-sports were more problematic then they were worth and he ended up ditching them for some lowering springs and QA1s. The K-sports will also not work with aftermarket rear sway bars.

I got this off of cadilacforums.com here is the url

http://www.cadillacforums.com/forums...coilovers.html

johnking3194

[QUOTE=Dmax/04V;16873118]Not sure if this is correct or not, but I'm running KW Variant 3 suspension and hotchkis sways no problems here.[/QUOT
Yes KW's do work with the Hotchkis kit.

I'm trying to figure out if id be better buying QA1's with my H&R springs and get the hotchkis sway kit if the D2s and ksports are unable to run aftermarket sways.

Dmax/04V

Hotchkis sways are a huge improvement, you need adjustable endlinks with them. I spent the money and got powergrid ones which I am very happy with. I still need to roll my fenders with stock 245/45/r18's, because of my ride height. Also going to switch to a slightly lower profile tire and run 255/35 front and 265/35 in the rear.

Onefast V

iTrader: (3)

I find it very hard to believe that the ksport/d2 coil overs would have any impact on the installation of sway bars. But remember as soon as you lower the car you will need adjustable endlinks as Dmax stated.

johnking3194

[QUOTE=Onefast V;16876838]why do you need adjustable endlinks for springs? and do you guys think d2s have the capablity of running hotchkis sways? plz someone with d2s answer this question because if they can't then im going h&rs with QA1s and hotchkis sways I'd spend more that way but I reall want the run aftrmarket sways to eliminate as much roll as possible.

Onefast V

iTrader: (3)

I'm running D2's. however i do not have Hotchkis sways but i don't see why there would be a clearance issue unless the Hotckis design has radically different bends.

Breaking

You guys with D2s what spring rates are you running?