Menu toggle

Bilstein Inserts

PAUL RUDDY

PAUL RUDDY

PCGB Member
Member
Has anyone experience of the Bilstein B6 inserts for the front struts, are they a direct replacement for the factory insert, most struts I have rebuilt have a fine threaded nut at the top of the tube that holds the insert are 944 the same ?

As for springs, who's are recommended to slightly lower the front.

I plan rear B6 shocks also.

Cheers, Paul
 
If you lower the front then you will definitely have to re-index the rear, which is quite a commitment work-wise. The reason is that the rears are already jack-up higher than originally intended to meet federal bumper requirements. The sills aren't level but they have always been like this so we tend not to notice (until you see an otherwise standard car which had had the rear lowered), but lowering the front further will make it particularly obvious.
 
Isn't it possible to get the rear a bit lower by adjusting this, ie loosening the bolt and eccentric bolt, or is this the same as indexing ?

Excuse my ignorance.

0e39bd32cfbeabe79ec3e5acb823e63f_zpsaafaef7f.jpg
 
Yes, in theory. Some people have been lucky and managed to adjust both sides by a suitable amount, but theyre really there to adjust them on the production line and for every lucky fellow there are lots who have to re-index.
 
Cheers Simon, so the plan is to see if I can get some simple adjustment on the rear first and if so go for lower springs and Bilsteins, if no go easily on the rear I'll go new OPC all round and be Mr Standard ride height [:D]

 
about your question on struts... I have a '91 S2 with standard suspension (sealed - no threaded caps on my struts) so my only option is Koni inserts that require the existing strut to be cut open, contents removed, hole drilled in the bottom and Koni insert used to replace the factory bits. I believe the sport suspension and/or M030 option suspension may have rebuild-able struts in the S2 years - they certainly were in the earlier years - which means the top screws off and the internals can be extracted.

I understand Bilstein inserts work on pre-89 (need to confirm this) as the strut tubes are larger than the later years when the spring diameters were reduced to accommodate ABS pumps, etc. If you search the forums here you should find some posts that describe the use of Bilstein inserts, what year struts they fit and other modifications (spring perches for smaller diameter springs, etc.) that were made to use specific struts in later model turbos and S2s.

The ride height adjustment on the rear will give you approximately 1" drop from standard. Any more and you need to re-index by rotating the torsion bars. For the late cars this means removing the rear suspension (torsion tube which captures the inner ends of the torsion bars) from the car and removing the control arms to access the torsion bar on each side (the big tube in your partial diagram with no number showing captures the outer end of the torsion bar and "connects" it to the spring plate). Torsion bars have different numbers of teeth on each end so the bars can be rotated to specific degrees of orientation to the spring plates (no 22 in your diagram) and then reassembled. This process changes the angle of the spring plate to the torsion bar mounts thereby resetting the vehicle ride height while maintaining the range of motion (and effective spring action) of the torsion bar.

Sorry - not the definitive breakdown but hopefully this will trigger one of the experts.
 

ORIGINAL: PAUL RUDDY

Has anyone experience of the Bilstein B6 inserts for the front struts, are they a direct replacement for the factory insert, most struts I have rebuilt have a fine threaded nut at the top of the tube that holds the insert are 944 the same ?

As for springs, who's are recommended to slightly lower the front.

I plan rear B6 shocks also.

Cheers, Paul
Click to expand...
dont think so - see here
 
Olli Snellman converts late strut housings to work with Bilstein inserts - might be worth dropping him a line (he's a member on here)

There is a thread on here with pics
 
Fitted them to my old early Lux and were a straight swap although not so on the later struts. They transformed my tired old suspension although I changed several other parts at the same time including a complete rebush and 968 ARB's. I would say they are a good fast road damper but for track days you would probably want something else.
 
You should only really use the adjuster to finer tune the rear ride height.People do lower their cars using them but it's not the right way to do it. The spring plate and the rear hub should be level with each other and not at an angle.
 

ORIGINAL: PAUL RUDDY

Jim, my car doesn't go near the track, it seldom goes near the public highway [:D]

Cheers, Paul
Click to expand...

Now now Paul stop telling Porkies !

I am sure this is your car in the lead and oh yes thats right it is on a Grand Prix track !

10333472_1378968015725237_6198421507713797195_o.jpg
 
Only up to '86 struts with threaded inserts will accept Bilstein B6 struts with no modifications.

A friend of mine converts later struts with a modified collar to work specifically with these threaded inserts. If interested, send me a pm and I will pass on his contact info.
 

ORIGINAL: os951


We have done dozens of them. Several sets have been sent to UK as well ;)

8662ece1.jpg
Click to expand...

Do you sell the collar and nuts ?

If so can you work out a price for 2 x car sets delivered to UK as I will no doubt have to sort Paul Ruddys as well as my own - lol

Thanks




 
Collars can be made. Nut is a Bilstein item which comes with the insert. Original Porsche (VW Super Beetle / Golf I) nut cannot be used since hole in the nut is too small for Bilstein insert's rod. Colars can be made also for another struts like Sachs, Kyb etc. With them oem nut works fine
 

ORIGINAL: RS2000CUSTOM

Do you sell the collar and nuts ?

If so can you work out a price for 2 x car sets delivered to UK as I will no doubt have to sort Paul Ruddys as well as my own - lol

Thanks
Click to expand...

That sounds very much like a plan, we can test them on the Monaco road trip.
 
You must log in or register to reply here.

Posts made and opinions expressed are those of the individual forum members

Use of the Forum is subject to the Terms and Conditions

Disclaimer

The opinions expressed on this site are not necessarily those of the Club, who shall have no liability in respect of them or the accuracy of the content. The Club assumes no responsibility for any effects arising from errors or omissions.

Porsche Club Great Britain gives no warranties, guarantees or assurances and makes no representations or recommendations regarding any goods or services advertised on this site. It is the responsibility of visitors to satisfy themselves that goods and/or services supplied by any advertiser are bona fide and in no instance can the Porsche Club Great Britain be held responsible.

When responding to advertisements please ensure that you satisfy yourself of any applicable call charges on numbers not prefixed by usual "landline" STD Codes. Information can be obtained from the operator or the white pages. Before giving out ANY information regarding cars, or any other items for sale, please satisfy yourself that any potential purchaser is bona fide.

Directors of the Board of Porsche Club GB, Club Office Staff, Register Secretaries and Regional Organisers are often requested by Club members to provide information on matters connected with their cars and other matters referred to in the Club Rules. Such information, advice and assistance provided by such persons is given in good faith and is based on the personal experience and knowledge of the individual concerned.

Neither Porsche Club GB, nor any of the aforementioned, shall be under any liability in respect of any such information, advice or assistance given to members. Members are advised to consult qualified specialists for information, advice and assistance on matters connected with their cars at all times.

Porsche
Lockton
Pirelli
Officially approved
Oracle Finance
WEX Esso
Collecting Cars
Archant Dialogue
Back
Top