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(Post Link) post #1 of 27 Old 21-07-12 Thread Starter
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Hmmm 147 Eibach Pro Kit problem

Hello everyone

On my 147 1.9jtd I installed eibach springs from 156 1.9jtd. I also put new rear shocks, for the front they told me that they are still ok.
The problem is that the car is now lower by 40mm in the back, and only cca 10mm in the front.
Has anyone had this kind of problem, and can faulty front shocks lift the front end?
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Common issue on Eibach's Pro kit. Rear drops more than the front.

Ride height is fully given by the springs only btw.

See my 156
29yfddy.jpg

Last edited by yan.ko; 21-07-12 at 09:29.
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Is there a solution, how to lower the front end?
shocks have absolutely nothing to do with height?
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Try Eibach Sportlines or some other springs on front. Although springs set are usually matched together.

Shocks have nothing to do with the ride height, unless they are longer than compressed spring :-)

Last edited by yan.ko; 21-07-12 at 10:44.
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Can I lower the front end by drilling the lower shock suport?
I saw this somewhere on the forum
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Quote:
Originally Posted by danijel147 View Post
Hello everyone

On my 147 1.9jtd I installed eibach springs from 156 1.9jtd. I also put new rear shocks, for the front they told me that they are still ok.
The problem is that the car is now lower by 40mm in the back, and only cca 10mm in the front.
Has anyone had this kind of problem, and can faulty front shocks lift the front end?
I think they might have given you springs for the V6 - it is 70kg+ heavier than the 4 cylinder cars and thus need stiffer springs, lifting the ride height.

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Originally Posted by danijel147 View Post
Can I lower the front end by drilling the lower shock support?
I saw this somewhere on the forum
Drilling / cutting stuff on the suspension to sort out ride height will cause other issues - I would not mess with that. See if you can get other springs

Last edited by Gertie; 23-07-12 at 10:31.
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Its possibly to modify the ally fork on the bottom of the front shock so that the shock slides further into the ally fork. Shiny_car did this on the forum.
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[QUOTE=Gertie;4904104]I think they might have given you springs for the V6 - it is 70kg+ heavier than the 4 cylinder cars and thus need stiffer springs, lifting the ride height.

I checked the code and the Pro Kit springs are for 156 1.9 jtd.
Is it possible that defective dampers can lift the front end?
Can I remove the rubber below the spring?
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Have you checked everything is mounted/seated correctly after fitting the new springs and the springs are located properly in their mounts and what is that last coil of the spring? where it goes brown-is it a second rubber seat?
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Originally Posted by edraven71 View Post
Have you checked everything is mounted/seated correctly after fitting the new springs and the springs are located properly in their mounts and what is that last coil of the spring? where it goes brown-is it a second rubber seat?
Everything seems ok
This brown thing is transparent rubber around the spring (when they are new), these are second hand
I ordered new front shocks, tomorrow I will check all, but it seems to me that springs from 156 jtd do not fit 147 jtd very well
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You should be able to remove the rubber mount under the spring. It isnt required with the eibachs because they already have the rubber tube around the bottom of the spring and should locate tightly around the bottom of the damper.
That rubber mounting pad actually comes up a bit inside the spring and could be causing the springs to sit a bit higher because you'll now have the rubber between the spring and the damper as well as the rubber tube around the spring - you will need to dismantle the whole spring and damper to remove the rubber pad though

156 2.5 V6 24v, Cosmos Blue Metallic, Tan Leather, 17 GTA's, 225/45 Michelin PS2's, Full Zender body kit, GTA Headlights, Eibach springs, Koni FSD's, Eibach Anti-roll bars, Ferrari 360 Brembo calipers, DS2500 pads, Squadra ECU, 45mm Intake Runners, Carbon Intake, Dan & Wizard exhaust

156 2.5 V6 Qsystem, Red + Red Leather, Bilstein dampers, DS2500 pads...soon Brembo calipers, 17" GTV Teles
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Quote:
Originally Posted by Pascs View Post
You should be able to remove the rubber mount under the spring. It isnt required with the eibachs because they already have the rubber tube around the bottom of the spring and should locate tightly around the bottom of the damper.
That rubber mounting pad actually comes up a bit inside the spring and could be causing the springs to sit a bit higher because you'll now have the rubber between the spring and the damper as well as the rubber tube around the spring - you will need to dismantle the whole spring and damper to remove the rubber pad though

I saw that the spring can be placed directly on the damper with no rubber pad. When I put the new shock I will not put a rubber pad back on.
But I think that this can lower the front end 5mm max. Or am I wrong?
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Yes probably 5mm is all you'll get from removing the rubber pad
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you've got me concerned reading this as iv just bought a set.
this hasnt happened to everyone whos fitted the eibach pro springs has it?
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First of all I would recommend to fit 147 springs on 147, not the 156 ones :-)
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Quote:
Originally Posted by yan.ko View Post
First of all I would recommend to fit 147 springs on 147, not the 156 ones :-)
+1 on that - if you have ride height adjustable coil-over system you can correct it - that is $$$.

I have hinted at the V6 vs 4 cylinder weight differences - the 147jtd and 156jtd differ a slight bit and the distribution on the 156 is further back:
15kg lighter on 47mm shorter wheelbase and 262 shorter total length all this play into the spring selection - but more importantly is the info not available: ride height

147: length - 4169mm, width - 1729mm, height - 1443mm, front track - 1517mm, rear track - 1503mm and the wheelbase is 2547mm. The curb weight is 1289kg

156: length - 4431mm, width - 1746mm, height - 1416mm, front track - 1519mm, rear track - 1505mm and its wheelbase is 2594mm. The curb weight is 1304kg
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Quote:
Originally Posted by yan.ko View Post
Common issue on Eibach's Pro kit. Rear drops more than the front.

Ride height is fully given by the springs only btw.
That's funny, I had exactly the opposite with my Pro springs + Pro dampers.
A LOT lowering at the front and less at the back.
I suspect the front dampers make the difference.
The distance from the lower spring seat to the clamping position in the lower fork to be precise, that does affect ride height.
So that's where I added 12mm rings to get an acceptable ground clearance again.
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Some of Eibach's springs cover too wide a spread of weights - they make the same pro-kit for both the 1.9 and the 2.4 jtd:

The 2.4's front end weighs approx 90kg more than the 1.9, the front spring rates are approx 180lbs/inch which means that with those springs fitted the front of the 2.4 will be 14mm lower than when fitted to the 1.9
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Quote:
Originally Posted by Pascs View Post
Yes probably 5mm is all you'll get from removing the rubber pad
Found good pictures on this.
pad.jpg
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Quote:
Originally Posted by JS JTD View Post
That's funny, I had exactly the opposite with my Pro springs + Pro dampers.
A LOT lowering at the front and less at the back.
I suspect the front dampers make the difference.
The distance from the lower spring seat to the clamping position in the lower fork to be precise, that does affect ride height.
So that's where I added 12mm rings to get an acceptable ground clearance again.
i have this issue too!!

where did you get these 12mm rings? do they sit on top of the rubber pad??

WANT!
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Quote:
Originally Posted by wankski View Post
i have this issue too!!

where did you get these 12mm rings? do they sit on top of the rubber pad??

WANT!
I made them myselves.

The rings sit inside the aluminium lower forks, under the shock absorber:

http://i41.tinypic.com/15i0t39.jpg
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Originally Posted by JS JTD View Post
I made them myselves.

The rings sit inside the aluminium lower forks, under the shock absorber:

http://i41.tinypic.com/15i0t39.jpg
OMG ! that would be excellent!!

with the spacer installed, can u still secure the strut thru the eyelet with the pinch bolt? does it still pass thru?

any chance u can make some more
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Quote:
Originally Posted by wankski View Post
OMG ! that would be excellent!!

with the spacer installed, can u still secure the strut thru the eyelet with the pinch bolt? does it still pass thru?

any chance u can make some more
You have grind some away with a dremel to get the bolt back in.
I will try to get a pair of these made.
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DUDE!

that will be very much appreciated!! i am close to changing out my entire new suspension for a coilover system as i am unhappy with the front drop! I have 345mm from the centre of the wheel to the wheel lip at the front, vs 370mm at the rear! With the heavy V6 hanging 5cm lower than the 4s in the bay - i still touch the road!

an extra 12mm would be FANTASTIC!

also, i really don't want to change all the struts again... i take it with this mod, all i have to do is break the top wishbone ball joint - extract the front 'tuning fork' and mount it back up with space attached? too easy!

mate if these could be made for me - it would be very much appreciated!

Cheers

Joe
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Joel - if you are making some more of those 12mm rings, I wouldn't mind a pair, keep scraping the front of my newly acquired 156 GTA. PM me a price & your paypal email
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