TJ993

Just considering an idea.
Toying with an idea and wondered how this would effect handling.
Anyone tried this?
Any thoughts or insights to share>?

993-TJC

Attachment 1019000I used b8's with m033 springs that worked great. The only reason for b6 is if you ever go back to US springs

TJ993

I have a Coupe with B6 all around on Euro or ROW Springs now.
Considering what the impact may be by adding B8 on the Rear Only.

nine9six

I'm wondering what you are trying to achieve, suspension wise? More info needed

...and then go here. 10th faq down.
http://www.bilstein.de/en/products/search-service/faqs/

97c2s993

Why not B8s all around? That's what I did with M033 springs on my ROW C2S. I guess you've spent the money on the fronts but no want to change rears without the additional expense. Will ride height be different though?

TJ993

here is the Answer from Bilstein which u identified - Thanks - See Below:

What difference is there between BILSTEIN B6 Sport and BILSTEIN B8 Sprint shock absorbers?

The BILSTEIN B6 Sport is a mono-tube gas pressure shock absorber designed to dampen wide-ranging vibrations very precisely.

Where an oil shock absorber produces an oily foam and creates a spongy driving feeling after a very short distance, the BILSTEIN B6 Sport remains constant, precise and stable.

The BILSTEIN B8 Sprint is a mono-tube gas pressure shock absorber specifically designed to be used with lowered vehicles with shorter stroke. It also offers the same advantages as the BILSTEIN B6 Sport shock absorber.

To answer your question
Learning. Wish to Improve / Adjust - striving toward Understanding and studying Diversive

Gettin close to wanting to Build a car with all the right stiuff.
Found a Nu reason 4 a Road Trip - 1 Leeking strut.

Spoke to Juan @ Bilstein - he said " The only difference between the rears is the extended shock length, the B6 and B8 share the same damping profile."

Wondered how having B6 now on Front will be effected by changing to B8 Rears>?
Second - pondering a Re-valve (Using ROW Springs presently) and what Bill V said:
Bilstein hd(b6) unfortunately do not come stock w/ digressive valving, but for a nominal fee can be changed and the whole install will be 1/4 of the MCS and provide 3/4 of the performance.
Like to learn about this in greater detail to make an Informed Decision
Then choose Direction for 993
TJ

il pirata

You did not say what year but it may not make a difference. In any case looking at the Bilstein specs for a 1996 C2, unless I got it wrong, the B8 is going to be 20mm lower than the B6. So if you have B6 on the front and B8 on the rear you will have a forward rake...not going to look good and assume it will mess up your handling. If you already have the Euro/Row springs I would go B8 all around. You most likely also have an issue currently with the shorter springs matched with standard (US) height B6 shocks.

TJ993

I Think u nailed it. I will heed your advice.
i Read your Suspension Post and More!
Got a few things happening that I am trying to rectify.
First I have a 97 Coupe - same as a 96 in your analogy.

I have B6 all around or so I thought!
Bought Rear B6 in 2011 and Front B6 2012. B8 were Not Readily Available in 2011.
Bilstein marked Rears now with One Number ending 08 & Now R offering to assist in addressing the issue.

Turns out Bilstein shipped me a B8 Left Rear and B6 Right Rear. Which is Leeking now.
Factor in 265 - 40 - 18 Rears - Higher rear sidewalls. Then ROW Springs. M030 Sways and Turbo 1 - 18's
Car is going Airborne near top speed in DE Events.

Height in Rear likely is Tilted to front. Should be close >? Right?
Guess I will Need a New Allignment.

I know Perch height is adjustable - Hmmm - what to do ??
Play it safe and Change both rears to B6 >?
Digressive ReValve - what does that entail>? Suspension Guru's ? Ideas Recomendations?

il pirata

A...my suggestion is you find a "qualified" 993 suspension tech to work with.

Assuming you go with B8 you need to determine if the one you bought a few years ago is identical to what you would get if you buy a B8 today. Personally I would try to get Bilstein to take the parts back and credit a new order.

TJ993

Thats where I am at - c what Bilstein has to Offer first.

My pixs of both Rear struts show room for Height adjustment.
Allign afterward Again.

I wonder about a digressive revalve - Not familiar -
Alternative maybe bak to B6 on Rears to have a Matched set on all 4 corners and then Digressive revalve?

Anyone able to share insights here>?

Thanks TJ

JDB1

Given that the same spring is mounted on both the b6 and b8 dampers, the ride height will be determined by the distance from the center line of the lower mounting bolt hole to the base line of the lower spring mount. If the adjustable threaded distance provides for the b6 distance equal to the b8 distance, then the ride height is determined by the compressed loading of the spring, which in this case is equal distance. Therefore, the distance from the centerline of the lower damper mount to the base of the upper mount is equal for both the b6 and b8. The b6 requires a longer free standing spring, like the H&R sport spring, to eliminate the hanging spring issue where as the b8 will eliminate this issue with a shorter free standing spring.

TJ993

Hi JDB1

If I am seeing things correctly there appears ample room to Lower either b8 or B6.>?
Would u agree>? I did not DIY the install, so No Experience here...yet :>)

B6 #24-061315 is The FIRST Pic - is the right rear B6

B8 is on Left Rear and 2nd Pic

To address the Hanging Spring issue - I have No Issues with the Rear ROW Springs on my car.

Now the Fronts I am Ultra careful as the Front ROW Spring will spin when Jacked up.

So I am toying with switching the Rears to B8 Only - Leaviing B6 on the Fronts as a warranty Claim - since they r paid for.
Or shall I go the other way for a Matched set of B6 all around>?

Spoke to Juan @ Bilstein - he said " The only difference between the rears is the extended shock length, the B6 and B8 share the same damping profile."
If I understand correctly, they r Basically the same except B8 is 20MM shorter - same spring profile.
TJ

Gert

We have done this before mainly due to floating spring reasons. Works perfectly.

TJ993

Glad to know this. Thank You Gert !

The above and attached front pics indicate there room to come Lower.
Attached is a front Pic.

How many miles of use are there in the ROW Springs? 100,000 Miles?

I am Condering a Re-valve (Using ROW Springs presently) and what Bill V said:
Bilstein hd(b6) unfortunately do not come stock w/ digressive valving, but for a nominal fee can be changed and the whole install will be 1/4 of the MCS and provide 3/4 of the performance.

Has anyone changed Valving to Digressive?
If so, what is the Cost ?
Impact ?
Benefits?

TJ993

bs SERVICE RESPONSE:

You could replace the 24-061315 (Damaged B6 Strut) with a new 24-195294.$212.

Obviously the 45k miles on the older shock could make the vehicle feel funny.
We could refurbish and convert the 24-061315 into the 24-195294, $95.00 ea. plus round trip freight and any applicable tax as well as refurbish the 24-195294, $95.00 ea. plus round trip freight and any applicable tax.