mic_crispy

Personally I'd do the end links while you're there. I waited and ended up wasting abit of cash having to ultimately install them instead of doing it all at once.
Since youre lowering you're gonna have some pre-load on the sway bars versus stock so you Wana dial that out.

I also did solid top mounts which I think are worth the cash as well and easy to do if you have it all apart.

AdamSanta85

When I had called Bilstein they told me the spring rates were for the B16...

Front - 285lbs
Rear - 629lbs

mic_crispy

That's interesting. i received this directly from them. Maybe they changed it at some point:



Or perhaps since they are progressive, your rates represent an average. I actually asked them for a dyno curve but they would not provide it.

Edit, progressive not linear.

AdamSanta85

I believe just the rear B16 springs are progressive the fronts are linear... I had been keeping this list. I can say that the Bilstein definitely feel stiffer than the OEM spasm.

• Base 991: 24nm/48nm
• PASM: 28nm/62nm
• PASM-S/GTS?: 33nm/108nm
• KW HAS: 44nm/100nm
• GT3: 45nm/120nm
• Bilstein B16 Damptronic full coilovers: 50nm/110nm
• Elephant Stage 1: 52nm/96nm
• Ohlins 70nm/120nm
• 991.2 GT3 RS: 100nm/160nm
• H&R VTF: "We won't tell you"

edit————-

I think both springs on Bilstein are progressive I found a pic of my kit before install

mic_crispy

I had oem SPASM, they are 100% stiffer.

ooahman

I have a 991.1 base Cab and and installed Ohlins Road and Track and absolutely love them.
My description would be firm , quick and accurate.
If you drive a 911 as a DD , then this upgrade would only enhance your driving pleasure.
For me, I use mine mostly on weekends, holidays and car meets.

rugu6869

I believe that Tractive retains the PASM adjustability if I'm not mistaken.

I didn't want to go full-blown track setup with the Tractive, so I went with Bilstein to keep the adjustability for my PASM (I have a 991.2). Bilstein is also the OEM supplier of the suspension so they should know quite a bit about what would and wouldn't work.
I'll have my multitude of upgrades installed in the next couple of weeks.

If you want to ditch the PASM, Ohlins are stellar for sure. We run them on our 335 racecar.
I also run JRZ RS1 on my GTI. Fantastic shocks for sure! TBH, if I were going to go the route of ditching the PASM, I'd more than likely do JRZ. Stellar reputation and great adjustability with plenty of options between single adjustable or two-way adjustable. They supply the dampers to Guntherwerks.
https://www.jrzsuspension.com/find-your-damper.html

AdamSanta85

Just for the heck of it I called Bilstein again this morning to check the spring rates... I was told for part number 49-216042

285 lbs / 50 nm front
629 lbs / 110 nm rear

https://www.bilstein.com/us/en/produ...47629182885639

That would put the Ohlins at a 40% stiffer front spring, and 9% stiffer rear against the Bilstein.

I can say the jump from SPASM 33nm front to Bilstein 50nm, 51% difference was very noticeable.

Going from Base 24nm to Ohlins 70nm is a 191% spring rate increase....

AdamSanta85

FWIW, the part number in your email is for the Front Axle Lift kit, 49-216042 is for the "regular" kit. That likely explains the front spring rate difference.

mic_crispy

Ah, makes sense.

Spaetzl

Someone in NYC with a B16 + DSC setup DM me and we can go compare cars for a day and do a comparo.

AdamSanta85

I'm on LI and have that setup. You doing the Porsche Road Rally to TT’s Montauk Sunday?

Spaetzl

Sadly, no. I'll be upstate. But we'll do it soon!

jeunge

I’m in li as well. Please let me know if you’re going to any local meets. I need to ask for a ride with your b16/dsc setup!

MingusDew

Honestly, rebuilding dampers you can do in your garage if you’re even half way competent with a wrench. These are designed for it, come apart easily and there are only a few seals to replace, put it back together and fill it up with oil. Nbd. I’ve done it with motorcycles, trucks and sports cars. I wouldn’t bother paying someone else to do it or want to stress with packing it up to ship off. If you can remove/reinstall a strut assembly, you can rebuild dampers that are designed to be rebuilt. Granted, I’m just getting into the Porsche world, but these struts are still the same tech used everywhere else in motor sports so I don’t know why it would be more difficult here.