cut sport springs vs. eibach pro-kit - TCCoA Forums
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post #1 of 35 (permalink) Old 10-07-2009, 03:40 AM Thread Starter
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cut sport springs vs. eibach pro-kit

OK, I am debating weather to swap in my Eibach pro-kit springs, instead of running the cut sport springs that are on the car now. I like the look of the car with the cut springs, it's absolutely slammed, and looks great. However, it's just a bit difficult to live with day-to-day, with speedbumps, driveways, rough roads, etc.

There are issues with bottoming out, and the car riding rough, bouncing down the road, and just generally beating the crap out of itself-there are a few roads here that are just unbelievable with their rough ride, not potholes, just bad, hard to describe...ask the guy who bought my 95, he knows what roads I am talking about.

ANYWAY...would the Eibach springs make for a better, less bouncy ride?

Also, I noticed that my upper control arms are pushed "up" from the car being so low...wouldn't this be harder on ball joints? Would eibach springs help to retain more of the stock suspension geometry with the way the UCA's are supposed to sit?

thanks

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post #2 of 35 (permalink) Old 10-07-2009, 09:24 AM
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Well, I can guarantee the eibach pro-kit springs will not be a step forward in rideability. My 94 has 1.5" lowering Eibachs in it and it rides like a lumber truck. It took me three weeks after buying it to derattle it and everywhere I go, I am searching for the smooth areas of the street. If I had a set of stock springs that I could cut down, I would consider swapping my Eibachs for them.

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post #3 of 35 (permalink) Old 10-07-2009, 09:28 AM
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FYI on my Springs ,I guess the V8 weight makes mine ride nice

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http://forums.tccoa.com/showthread.php?t=125065

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post #4 of 35 (permalink) Old 10-07-2009, 09:33 AM
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I had cut standard V8 springs and then went to the Eibachs on my 94 V8. I much prefered the Eibachs. The first inch or so is nice and soft, but in cornering they get stiffer. I really liked the variable rate of the Eibachs and if I ever go to springs on my LSC, that is what I will go with.

They do take a little getting used to though since they are variable.

But just my .02.

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post #5 of 35 (permalink) Old 10-07-2009, 09:45 AM
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yep 94 you hit the nail on the head with your take

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post #6 of 35 (permalink) Old 10-07-2009, 09:57 AM
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Lol the best way to discribe the road he travels on is think about that suspension bridge accident way back when where the whole bridge started swaying in the wind left and right and the drive deck started twisting that's the road.... with no shoulders and swamp land on either side with a 50mph speed limit. You guys are nuts.

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post #7 of 35 (permalink) Old 10-07-2009, 02:04 PM
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Eibachs will be waaaay softer than the cut sports, which some people like (I don't). What shocks do you currently have? if you have a bouncy ride I'd change those first

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post #8 of 35 (permalink) Old 10-07-2009, 02:16 PM Thread Starter
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I have the infinately adjustable koni's up front and KYB's in the rear...when I bought the car, the koni's where turned all the way up to stiff...I backed them down all the way, totally changed things, then I tightened them half way...50 percent is tolerable.

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post #9 of 35 (permalink) Old 10-07-2009, 02:31 PM
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You looking to trade your Eibach's for a set of SC springs ?

I might also have a set of Intrax but they will drop you more than 2 inches, may be too much for you.

Not a fan of KONI's either ..
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post #10 of 35 (permalink) Old 10-07-2009, 10:50 PM Thread Starter
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Well, techinically, I have SC springs...I don't know, I almost think I want to go with airbags to keep the b i t c h i n' LOW look, but have some ride quality....

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post #11 of 35 (permalink) Old 10-07-2009, 11:51 PM
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My 97 is lowered on tokico 1 1/4" drop springs and tokico blue shocks the rear is very stiff but that could be due to chassis bracing (boxed v-brace, rear torsional load brace, sc L-braces, rear shock tower brace) and the front is a bit softer probably due to chassis flex but idk. My lincoln mark vIII was lowered with 2" spring tech or suspension techniques I don't remember lol their blue, but they were low and firm not to tight for regular driving but not to soft for corners. Although with a 2" drop I had to be careful over speedbumps.

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post #12 of 35 (permalink) Old 10-08-2009, 12:53 AM Thread Starter
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Yeah I have to be careful over speedbumps and stuff...I might just leave it the way it is...my concen is added stress on the ball joints up front.

I have a shock tower brace on the rear of this car, along with a swaybar, and it is pretty stiff. I will probably add SC L brackets and keep the non folding rear seat...I would love to have a fold down rear, but what to do for upholstry, I like the stock green cloth in this car too much to go mis-matching it.

Quesion, what do you mean by "boxed V brace"??

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post #13 of 35 (permalink) Old 10-08-2009, 12:58 AM
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SC L-braces along with the V-brace I assume. I prefer to call it LVJ bracing

-Matt
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post #14 of 35 (permalink) Old 10-08-2009, 01:11 AM
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I had a v-brace boxed with 1/8" (I think) steel it's a fully boxed v-brace.

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post #15 of 35 (permalink) Old 10-08-2009, 01:19 AM Thread Starter
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did it help?

I want to get a front strut tower brace....basically I'd like to add either ALL the chassis bracing that SCP sells, or, if I could, I'd like to get the rest of the suspension bracing parts that ?johny langton? sold...I think that's where this RSTB came from.

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post #16 of 35 (permalink) Old 10-08-2009, 11:11 AM
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I did notice a small gain, nothing to write home about.

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post #17 of 35 (permalink) Old 10-08-2009, 02:53 PM
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Quote:
Originally Posted by Earl View Post
Yeah I have to be careful over speedbumps and stuff...I might just leave it the way it is...my concen is added stress on the ball joints up front.
Youre supposed to drive slow over speed bumps anyways ... I wouldnt worry about the ball joints - are yours all in good condition ?
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post #18 of 35 (permalink) Old 10-11-2009, 12:40 AM Thread Starter
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Youre supposed to drive slow over speed bumps anyways ... I wouldnt worry about the ball joints - are yours all in good condition ?
I drive slow and at an angle ove them, sometimes the exhaust scrapes a bit on them...not bad, I just don't like it. The ball joints are fine, the boots are splitting though, which I worry about.

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post #19 of 35 (permalink) Old 10-11-2009, 12:18 PM
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I'll trade some nice new Gabriel shocks with stock V8 springs for the konis and eibachs, if you want.

Sounds like we each want what the other has...

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post #20 of 35 (permalink) Old 10-12-2009, 07:15 AM Thread Starter
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naaaahhh....I dunno, I think I'm gonna keep it the way it is...cut springs and all

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post #21 of 35 (permalink) Old 10-12-2009, 09:43 PM
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These cars drive killer, especially with a stiff suspension.

The aftermarket shocks I've bought so far feel great for about three months; then they're too soft.

I have a set of better shocks on the way soon, but I'll probably buy konis for the other car. Unless I hit the lottery, and can afford some Custom QA1's...

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post #22 of 35 (permalink) Old 10-13-2009, 12:07 PM
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I've had the Eibachs for some time now... just love em along with the KYB shocks. But I have a new problem now. I installed Mark VIII LCA's in the rear using the adapter plates and since I had em apart I installed cobra Poly spring isolaters. Now the rear of the car is sitting up to almost stock height.
Has anyone ever cut Eibachs before?


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post #23 of 35 (permalink) Old 10-13-2009, 10:56 PM
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I've had the Eibachs for some time now... just love em along with the KYB shocks. But I have a new problem now. I installed Mark VIII LCA's in the rear using the adapter plates and since I had em apart I installed cobra Poly spring isolaters. Now the rear of the car is sitting up to almost stock height.
Has anyone ever cut Eibachs before?
I think the isolators will relax a bit after a while; I could be wrong.

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Black '96 Cougar XR-7 (Lazarus) 210k mi PI Intake, '02 4R70W, Jmod, PST DS, GrogTune, Konis, Mark LCA+Poly, racecougar Custom Engine Chain, and JL and racecougar Bracing.
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post #24 of 35 (permalink) Old 10-13-2009, 11:09 PM
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Grog I believe you are correct mine was the same, After RobertP done my springs she sat high in the rear but then after the 600 mile trip back home she settled down normal

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post #25 of 35 (permalink) Old 10-14-2009, 03:25 AM
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I hope so. I did the LCA swap a couple months ago.. and its still sitting high. Those Cobra isolators are polyurethane.. pretty hard stuff compared to the factory rubber. Eh, I'll give it the winter, see if it sits down any more. The extra clearance may come in handy in the snow! lol


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post #26 of 35 (permalink) Old 10-14-2009, 08:05 PM
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Has anyone ever cut Eibachs before?
Since the eibach's are progressively wound, wouldn't that ruin them?

Red '96 Cougar XR-7 240k mi. '02 4R70W, PST DS : '03 PI engine, 04 maf, 24lb injectors, 2.5" exhaust, '02 4r70w + Jmod, DirtyD0g TC + cooler + 3/8" lines, 255 walbro fp. Alpine system.
Black '96 Cougar XR-7 (Lazarus) 210k mi PI Intake, '02 4R70W, Jmod, PST DS, GrogTune, Konis, Mark LCA+Poly, racecougar Custom Engine Chain, and JL and racecougar Bracing.
Black '97 Tbird Limited Edition, '02 4R70W, 255 walbro, PST DS, PBR Brakes&SS lines, Toicko Blues & Springs, GrogTune.


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post #27 of 35 (permalink) Old 10-14-2009, 09:37 PM
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The rears arent progressive from what I've seen, and even if they were you can still cut them without issues.

-Matt
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post #28 of 35 (permalink) Old 10-14-2009, 11:15 PM
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I looked in the pics in the other thread; only one end is progressive. You can cut the other end, and keep the variable aspect.

Red '96 Cougar XR-7 240k mi. '02 4R70W, PST DS : '03 PI engine, 04 maf, 24lb injectors, 2.5" exhaust, '02 4r70w + Jmod, DirtyD0g TC + cooler + 3/8" lines, 255 walbro fp. Alpine system.
Black '96 Cougar XR-7 (Lazarus) 210k mi PI Intake, '02 4R70W, Jmod, PST DS, GrogTune, Konis, Mark LCA+Poly, racecougar Custom Engine Chain, and JL and racecougar Bracing.
Black '97 Tbird Limited Edition, '02 4R70W, 255 walbro, PST DS, PBR Brakes&SS lines, Toicko Blues & Springs, GrogTune.


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post #29 of 35 (permalink) Old 11-02-2009, 03:50 PM
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I think one end being progressive is what makes them progressive... but thats not what I'm back for this time.. lol

I was just under the car checking for loose anything (the rear of the car is getting really loose in corners, and even seems to shift to the right when I get on it from a roll). While I was under there I noticed that one of the rear springs was installed "upside down". I.E. the lettering on the spring was upside down on one spring, right side up on the other. Since they are progressive, would this make a difference?

And... any ideas on that loose feeling? (I know, way off thread topic, but....)


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1997 T-Bird GT 4.6
80 MM Mustang GT MAF - P&P'd Mustang GT TB and Intake Plenum - PI Intake manifold - PI Heads
Mark VIII Torque Converter - J-Modded 4R70W transmission - Mark VIII Aluminum Driveshaft - 3.73 gears
PBR Brake Calipers - Eibach Springs - KYB Shocks
'89 SuperCoupe front and rear sway bars
SCT Chip programmed by Lonnie Doll
255/50/16 Falken Ziex ZE-512's
True Dual exhaust with Magnaflow DI/DO muffler
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post #30 of 35 (permalink) Old 11-02-2009, 06:22 PM
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Quote:
Originally Posted by Earl View Post
OK, I am debating weather to swap in my Eibach pro-kit springs, instead of running the cut sport springs that are on the car now. I like the look of the car with the cut springs, it's absolutely slammed, and looks great. However, it's just a bit difficult to live with day-to-day, with speedbumps, driveways, rough roads, etc.

There are issues with bottoming out, and the car riding rough, bouncing down the road, and just generally beating the crap out of itself-there are a few roads here that are just unbelievable with their rough ride, not potholes, just bad, hard to describe...ask the guy who bought my 95, he knows what roads I am talking about.

ANYWAY...would the Eibach springs make for a better, less bouncy ride?

Also, I noticed that my upper control arms are pushed "up" from the car being so low...wouldn't this be harder on ball joints? Would eibach springs help to retain more of the stock suspension geometry with the way the UCA's are supposed to sit?

thanks

Earl
Sounds like you cut too much off?

The lower you lower the car, the less clearance you have to actually swallow bumps, dips, etc. You can not have soft springs, long travel, super smooth ride with a slammed car.

Very pleased with my cut sport springs, but I only cut 5/8 coil in back and 1 full coil in front.

A fine pair ... ... and whatever you do, Have a Safe Trip!
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