Tuning Bilstein B14 Review

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Tuning Bilstein B14 Review

The small spring is known as a tender spring, it's a shrt, soft spring that is there just to absorb small road imperfections.

I think not. If I can squeeze it with hands, it (when the car is lowered to the ground) is nevertheless totally squeezed...so it doesn't really matter.

Can I squeeze it totally with a goal to make the car higher?
 
LOL Mark used to work for a company called Williams, ever heard of them?

http://www.e30m3project.com/e30m3performance/tech_articles/susp-tech/springs/index.htm

I didn't know. :)

but my question is still unanswered.....
Can I compress totally the little spring when screwing that purple thread upwards?

BTW: Thanks for the link. So my coilovers have a "helper spring" which is fully compressed when the car sits on the wheels. That surely means I can (in the first place) fully compress that spring when the car is on jacks. I'm sure i can get about 1 cm (a little less than 0,5 inch) that way. And that will be enough for me.
 
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I didn't know. :)

but my question is still unanswered.....
Can I compress totally the little spring when screwing that purple thread upwards?
best to contact KW tbh. As I (someone whose dad once undid a Bilstein strut and had suspension parts fly across the garage) read that webpage there is no issue in compressing a tender spring apart from the fact that you'll be straight on the stiff springs rather having the more desirable setup of having the tender spring there to help you out. Like I said, contact KW for guidance, I can certainly say that i'm just guessing.
 
If it's a tender spring then no, if it's helper spring then yes, it should be.

I edited my previous post. I'm totaly certain it's a helper spring.
I can screw up that purple thread with hand and see how the little spring compresses. So it must be a softer of the 2.....so helper spring. + It isn't welded to the bigger spring.

Thanks.
 
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I edited my previous post. I'm totaly certain it's a helper spring.
I can screw up that purple thread with hand and see how the little spring compresses. So it must be a softer of the 2.....so helper spring. + It isn't welded to the bigger spring.

Thanks.
As I said, I would contact KW for guidance. That's just me though
 
It's snowing madly in Slovenia right now, so no way I can jack-up the car and take a photo.

I just sent a massage to KW asking them if I can screw up the purple thread to the point where the small spring will be totally compressed (the big spring stays as it is).

I hope they answer...
 
It's snowing madly in Slovenia right now, so no way I can jack-up the car and take a photo.

I just sent a massage to KW asking them if I can screw up the purple thread to the point where the small spring will be totally compressed (the big spring stays as it is).

I hope they answer...

Due to the rising spring rate of the main spring you would be able to compress both a tender spring and a helper spring of you wound the spring platform up enough.

If you wind it off fully, so no compression, the pop the car on it's wheels, if the small spring THEN fully compresses I'm 99% certain it's a helper spring.
 
Due to the rising spring rate of the main spring you would be able to compress both a tender spring and a helper spring of you wound the spring platform up enough.

If you wind it off fully, so no compression, the pop the car on it's wheels, if the small spring THEN fully compresses I'm 99% certain it's a helper spring.

I can screw with hands that purple thread up or down without any big effort and the little spring compresses or decompresses.
It must be the helper spring which only helps the bigger spring to be tight between the perches.

helper spring:

http://www.kw-suspensions.eu/int/kw_spring_strut_constr.php
 
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I can screw with hands that purple thread up or down without any big effort and the little spring compresses or decompresses.
It must be the helper spring which only helps the bigger spring to be tight between the perches.

Don't forget a screw thread offers a huge machanical advantage to will make compressing the spring very easy.
 
I can screw with hands that purple thread up or down without any big effort and the little spring compresses or decompresses.
It must be the helper spring which only helps the bigger spring to be tight between the perches.

helper spring:

http://www.kw-suspensions.eu/int/kw_spring_strut_constr.php
I think you should listen to mark and wind it off fully and then see what happens so you can be sure that it's a helper spring or tender spring.
 
I just talked to the guy who installed my coilovers.
He said it's defenetly a helper spring and it's only there to prevent the bigger spring "running out of place".

When the weather gets better I will try a few things.......
 
I just talked to the guy who installed my coilovers.
He said it's defenetly a helper spring and it's only there to prevent the bigger spring "running out of place".

When the weather gets better I will try a few things.......


Remember, ecery time you adjust the front ride height you need to get the tracking adjusted, otherwise you'll be getting through rubber faster than a King Cross Whore.
 
Thanks again for the write up! There's a set on eBay just now that I am tempted to bid on. The only thing putting me off is I have a 1.3MJD and I don't drive it particularly hard. If I had an Abarth it would be a no brainer, but since I have a high mpg city car, I think springs would be a more financially sound choice.

Out of curiosity, will the Abarth B14's fit other 500's?
 
Thanks again for the write up! There's a set on eBay just now that I am tempted to bid on. The only thing putting me off is I have a 1.3MJD and I don't drive it particularly hard. If I had an Abarth it would be a no brainer, but since I have a high mpg city car, I think springs would be a more financially sound choice.

Out of curiosity, will the Abarth B14's fit other 500's?
The B14's are for 500's, not just Abarth's. So yes they'll fit.

Tbh If you don't drive it particularly hard at all then perhaps a set of Koni FSD's would be a better bet if you do have any issues with the suspension :)
 
I did a bit of reading on the Koni FSD kit... again it seems like overkill, and is pricier than the Bilstein B14's!

I don't have any real issues with the suspension. It can be a bit bouncy at times and there's a bit of roll through some corners, but not enough to justify £500+ worth of suspension.

From what i've read on here, the Eibach Pro Springs will improve on the above, and improve the overall stance of the car with lowered ride height :)
 
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