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Discussion summary
YOUR RESEARCHCeika Coilovers on Porsche 996/997.1 RWD
Leading reported evidence
Adjust like a standard coilover (like the rear
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Performed · outcome unconfirmed · Original poster
The 996 C4 is different, the coilover can be adjusted like a standard coilover (like the rear for example.
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Suggestion
The whole shock body is threaded and if was solid mounted that would make the coilovers non height adjustable besides adjusting by spring perch, which is rare and obsolete for this type of coilover.
Leading evidence: 'Adjust like a standard coilover (like the rear' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Adjust by spring perch' (1 discussions). For that action, 0 discussions report a resolution and 0 report an unsuccessful attempt. No action has an explicit, attributable resolution report under the current rules. These are forum reports and suggestions, not a confirmed diagnosis.
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Performed · outcome unconfirmed · Original poster
can't tell by looking at it out of the car, based on the big difference between coil-overs and the bee-hive spring used on the stock shocks.
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Performed · outcome unconfirmed · Original poster
I cut them off the old struts with angle grinder and then used the slip ring in the box to bolt it on to the bottom of the strut.
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Suggestion
The whole shock body is threaded and if was solid mounted that would make the coilovers non height adjustable besides adjusting by spring perch, which is rare and obsolete for this type of coilover.
Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.
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Suggestion
Or is it all part of the shock in one piece as some coilovers adjust height by having a bottom peice that spins downwards to adjust height rather than having to touch the spring.
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Adjust by spring perch
No successful repair reported for this finding.
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Reported fixes
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Unsuccessful attempts
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Discussions
Read evidence and context
Discussions that contain suggestions
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Suggestion
The whole shock body is threaded and if was solid mounted that would make the coilovers non height adjustable besides adjusting by spring perch, which is rare and obsolete for this type of coilover.
0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Suggestion
Or is it all part of the shock in one piece as some coilovers adjust height by having a bottom peice that spins downwards to adjust height rather than having to touch the spring.
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Suggestion
Or is it all part of the shock in one piece as some coilovers adjust height by having a bottom peice that spins downwards to adjust height rather than having to touch the spring.
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Suggestion · Original poster
CEIKA finally after back and forth admitted to get close to stock height I either need to increase my preload, which is a no-no generally with coilovers (adjusting a linear spring's compression to adjust ride height, to be precise) or machine a larger spacer.
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Suggestion · Original poster
CEIKA finally after back and forth admitted to get close to stock height I either need to increase my preload, which is a no-no generally with coilovers (adjusting a linear spring's compression to adjust ride height, to be precise) or machine a larger spacer.
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Porsche Forum Australia: 1 discussions
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Hi all,
Getting desperate for some help. Has anyone fitted CEIKA coilovers on their 996/997.1 RWD (not 4/AWD)?
I have a concern about the length of the front strut and it's ride height and want to be sure about the fitment before proceeding further in the replacement.
Below is the new strut next to old and where they are expected to rest on the knuckle before fastening (see red lines). This is meant to be "at or near ride height" according to product specification.
Thanks. Yeah I read that and the photos were from a C4S. They have different front strut layout/knuckle. So wasn't sure still.
I saw one other photo of the fronts installed on a C2 on the CEIKA website, but can't tell if they got the "super low" kit or mine.
A mate who races (not porsche unfortunately) and has done plenty of coil overs has convinced me to just get it on the ground again and see if it's wrong or not. He says... can't tell by looking at it out of the car, based on the big difference between coil-overs and the bee-hive spring used on the stock shocks. Will share pics soon!
If they are wrong Ceika are pretty good at replacing things free of cost to you. It's more about the time for the parts to arrive.
Can you adjust the lower section down by twisting the body? It looks like it was put in the lowest setting for postage
The coilovers will also be much stiffer than factory and comparing the shock droop of standard to coilovers will always net a huge difference in length. I would suggest adjusting the shock length to make it a little longer and then installing it to see what the real ride height is.
Also look at shortened adjustable sway bar links if you lower the car, as they will be under tension while at ride height. It will make the car nervous on first turn in if not adjusted.
Also before you start, measure from the bottom of the rim to the guard to get your ride height baseline so you know what to aim for each corner.
Sorry for the general info dump
Thanks mate. They got back to me and reassured me the photos of ride height on the new shocks look correct and are fitted in the knuckle correctly. I can't wait to get it on the ground and see though. Waiting on some other parts to do while the car is up and wheels are off, always find something new that needs work when I look underneath the petticoat.
So here is a side by side. I selected the option "Low" on the CEIKA site, instead of "Extra Low" or "Lift". The pop-out text describes "Low" as adjustable from "around stock height to -10". I have the front at the highest setting and it is sitting super low. I will continue to work through this with CEIKA but so far... I am not impressed.
Before:
After:
They are at the highest setting (two locking collars at bottom in OP). Vendor said if need to go higher to increase the preload a bit, but that is like the opposite of what to do unless you want a shit ride. I'll see what they say after the latest photos. Hopefully they realise they have indeed sent me the wrong ones...
It looks lower than mine, But just went to the garage and had a gork, It looks to be about the height as mine, You have to keep a eye out for crook bits of road, But besides that it rides good.
Hmm agree that doesn't look quite right ... This is what mine looked like after new Bilsteins and lowered Eibach springs ... I would have thought you'd be aiming for something similar?
Basically trying to maintain factory ride height, but refresh 20 year old suspension with more comfort and future adjustability. Will let you know what the CEIKA says after these photos etc.
Good plan ... I went with the lowered springs but they were too low in hindsight ... just refreshing and having nice new factory height would have been the better option. If I had kept my car longer I think I would have swapped the springs by now.
Good luck with it
👍
After 6 months or so with my lowered springs I'm quite happy, and haven't given any thought at all to returning to the factory springs. Mine were H&Rs, presume pretty similar to the Eibachs. They are on stock shockies.
This is my front now
Oh dear, just noticed my crest is not pointed towards the valve. Smack on back of hand....
My springs are H&R aswell but seem to sit a bit lower, car has been sitting a week, So maybe a bit higher when active. Couple of pics fo reference probably still have 15 mm higher than you.
Can you wind up the locking collar under the helper spring and squash it more? Then raise the lower locking collar? That spring does not take any load, it's just to keep the main spring from rattling around in droop
Try wind it up 2cm max and see what height the car is. It will probably go up a fair bit as I don't think the motion ratio is 1:1.
For example if you raise the lower locking spring 20cm. It might raise the height 30cm. They do not directly match on many cars.
It maybe a 1cm at the shock to 2cm at the chassis type ratio
Does the bottom part of the shock spin off? Or is it all part of the shock in one piece as some coilovers adjust height by having a bottom peice that spins downwards to adjust height rather than having to touch the spring. It looks like it does but it's hard to tell from the one pic.
If not, the locking ring directly under the helper spring should control ride height. And move that up 1cm and check ride height.
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Nope. The RWD front knuckle clamps onto the strut body directly.
Kind of. CEIKA finally after back and forth admitted to get close to stock height I either need to increase my preload, which is a no-no generally with coilovers (adjusting a linear spring's compression to adjust ride height, to be precise) or machine a larger spacer. I am going with the larger spacer route. I am VERY lucky to have a neighbour who's a regular at the track to coach me on this upgrade.
I finally got on level slab and took ride height measurements of the kit fitted as delivered. I am gobsmacked.
Maybe 80mm ride (stock for me is 138mm minimum) at the front (I couldn't actually measure lower). 113mm (min is 153mm) at the rear.
Good luck,Spacers should solve your problem. I have to ask, If you are after stock height why did you go for the coilovers.? Sorry just read again "renew and replace" The old suspension.
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I would honestly be stunned if that bottom leg was not adjustable. The whole shock body is threaded and if was solid mounted that would make the coilovers non height adjustable besides adjusting by spring perch, which is rare and obsolete for this type of coilover. Bilstein b14s are spring perch height adjustable only, but you have two sets of locking rings on the shock. One located under the spring which you shouldn't need to touch, and the other where the bottom leg is, and that bottom set should be able to be loosened and then the leg unwound to increase total length and height.
Any chance you can take more pics of the coilovers up close?
I assure you it isn't, CEIKA have confirmed: "
The 996 C4 is different, the coilover can be adjusted like a standard coilover (like the rear for example. I attached a picture. We can't make it like that on the C2 because the diameter is too thin )"
Yep, exactly the problem I have.
New spacers on now:
Ok I stand corrected haha. Wow I did not think they would limit the design that way.
Full disclosure one of the designers at Ceika was a member of a car club I used to be a part of, and he was pretty specific with his engineering and measurements. Glad it is sorted though
It's really hard for me to describe. It is so difficult to describe without two cars to hop in and do the exact same route back to back.
I does feel different to before. The most noticable instance was when I recently took a bumby negative camber corner with some speed. It did feel as though the car did not roll as much but instead felt like a more even bounce at all four corners.
My neighbour (the racer) is going to share his verdict soon.
Sorry to bring up an old thread, but can you explain the bracket on the one in the foreground of the photo? I just received a set and I don’t have the one that appears to go through the pinch bolt. Did you manufacture it yourself?
