Stewart Development revalved Bilstein group buy feeler - Page 3 - Miata Turbo Forum - Boost cars, acquire cats.

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Old 02-26-2010, 01:07 PM   #41
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Just call the ******* guy already....
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Old 02-26-2010, 01:07 PM   #42
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Originally Posted by JasonC SBB View Post
This is what I mean. Does *he* design the curves or can you spec the curves? You could give the same car, spring, and usage specs to 5 different guys and you get 5 different opinions on what the "correct" damping curve is.
"Yes, they can definitely request a desired curve. "


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Old 02-26-2010, 02:41 PM   #43
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you can also convert the stock shocks to be serviceable.

FCM Variant 2 suspension for STR class - MX-5 Miata Forum
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Old 02-26-2010, 03:24 PM   #44
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Neo, the purpose of my questioning is not because I want to participate in the group buy ... I'm helping you guys out. I've worked with FCM in developing simulations and dyno curves.

Now for my next question:
If you give him your desired curves, will he show individual dyno plots of what he ships you?
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Old 02-26-2010, 03:40 PM   #45
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Originally Posted by JasonC SBB View Post
Neo, the purpose of my questioning is not because I want to participate in the group buy ... I'm helping you guys out. I've worked with FCM in developing simulations and dyno curves.

Now for my next question:
If you give him your desired curves, will he show individual dyno plots of what he ships you?
This is getting stupid. I'm not trying to pit FCM and SD against one another.
Having shocks matched to the best theoretical curve you have will be different on almost every car.

Unless you have found a curve from hours of trial an error datalogging with different shock valving, the average joe around here will not benefit from requesting a particular curve. Do not mislead people into thinking that this is what they need.
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Old 02-26-2010, 03:54 PM   #46
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I agree. Jason, I think you are taking this to an extreme. Its a GB, there is no vendor here pushing a product to someone. If someone has these specific questions they can call the phone number in #1 and talk to the guy himself.
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Old 02-26-2010, 05:16 PM   #47
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This is getting stupid. I'm not trying to pit FCM and SD against one another.
Having shocks matched to the best theoretical curve you have will be different on almost every car.

Unless you have found a curve from hours of trial an error datalogging with different shock valving, the average joe around here will not benefit from requesting a particular curve. Do not mislead people into thinking that this is what they need.
Touchy, aren't we? I am NOT trying to pit FCM and SD either. IF I were to use his services, I would want to spec the dyno curve and get back actual curves per shock.

For those who don't know how to spec curves, I am merely wondering out loud what his recommended curves would be for say:

400/300 lb/in front/rear springs, 2500 lb car with driver.

The reason I wonder out loud, is that I have seen atrocious (IMO) curves designed by supposed hot-**** re-valvers. (Note, maybe this guy does reeeeaaaalllly good stuff, I don't know).

Now before someone crows about his track/racer-customer cred, let me point out the disclaimer that my work with FCM was more for back-road performance (where my own interest lies), than track performance.

edit: Just read Neo's last post. I guess my inputs are not welcome, so I will stay out of this thread.
Goodbye and thanks for all the fish.
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Old 02-26-2010, 05:51 PM   #48
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Quote:
Originally Posted by JasonC SBB View Post
Touchy, aren't we? I am NOT trying to pit FCM and SD either. IF I were to use his services, I would want to spec the dyno curve and get back actual curves per shock.

For those who don't know how to spec curves, I am merely wondering out loud what his recommended curves would be for say:

400/300 lb/in front/rear springs, 2500 lb car with driver.

The reason I wonder out loud, is that I have seen atrocious (IMO) curves designed by supposed hot-**** re-valvers. (Note, maybe this guy does reeeeaaaalllly good stuff, I don't know).

Now before someone crows about his track/racer-customer cred, let me point out the disclaimer that my work with FCM was more for back-road performance (where my own interest lies), than track performance.

edit: Just read Neo's last post. I guess my inputs are not welcome, so I will stay out of this thread.
Goodbye and thanks for all the fish.
I apologize if I came across aggressive. Yes, Stewart does provide a graph for each shock.

I just don't want anyone to think that I am trying to start a "who is better" debate between FCM and Stewart Development.

I think they are two knowledgeable top tier groups. SD just happens to be willing to throw us a bone at the moment. I also don't want anyone to shy away because he isn't the "popular kid" in our community when it comes to revalved shocks.

This is a fantastic opportunity for a lot of people. Especially when you don't have the time, skill, and/or equipment to dial in an adjustable setup. You have to know how to drive a track very well to start adjusting suspension based on "feel". Otherwise there are too many other factors that can contribute to ones improvement at the track.
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Old 02-26-2010, 05:52 PM   #49
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I'n't SD where FCM suggests to take shocks now anyways?
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Old 02-26-2010, 06:08 PM   #50
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SD can convert the oem shocks to adjustable. I know FCM sends those. I think it says that on FCMs website. I'm not sure what else.
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Old 02-26-2010, 06:15 PM   #51
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I'n't SD where FCM suggests to take shocks now anyways?
Used shocks to revalve/rebuild. Shaikh, if I remember correctly, said himself he would no longer take used shocks to work on, as he couldn't assure their quality. Again, iirc, he is sending people with used shocks to Stewart, and has formed some sort of alliance.
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Old 02-26-2010, 06:18 PM   #52
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Old 02-26-2010, 10:51 PM   #53
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shaikh used to send shocks to stewart to have something done he didn't have a tool for. that's why he was only doing certain shocks for re-valves.
sd uses the best part for the job regardless of who it came from. shaikh and bilstein only use bilstein parts designed and using materials that were available 20-30 years ago. without a doubt, you will get the highest quality work and parts in your bilsteins. this has all been discussed in three other threads. buy these or get magic johnson aids. you won't die.......... you'll just have the aids
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Old 02-27-2010, 02:09 AM   #54
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Oooo - I would be a huge fan of getting adjustable put in. Guess I'll give the guy a ring. :-) FCM just takes a long time (no longer an issue, I bought another set)... but for what he charges I'm just too paranoid of them coming out wrong. :-) I'll check back next month. :-)
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Old 02-27-2010, 11:44 AM   #55
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Oooo - I would be a huge fan of getting adjustable put in. Guess I'll give the guy a ring. :-) FCM just takes a long time (no longer an issue, I bought another set)... but for what he charges I'm just too paranoid of them coming out wrong. :-) I'll check back next month. :-)
Per our PM discussion, I am going to add yo tentatively to the revalve list. I'll get back to you with the other info.
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Old 02-27-2010, 10:01 PM   #56
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Hey^^ will this only apply to Miata shocks? A friend of mine is interested in getting in on this but he has a MK4 VW GTI.
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Old 02-28-2010, 01:37 AM   #57
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i was curious too. i have an audi with bilstein's as well..
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Old 02-28-2010, 10:06 AM   #58
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Not limited to miatas, people just need to sign up through this GB
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Old 02-28-2010, 02:21 PM   #59
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i would be interested in getting my old bilsteins re-valved. If they can put in adjustable valving at the same price that would be even better.
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Old 02-28-2010, 02:51 PM   #60
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i would be interested in getting my old bilsteins re-valved. If they can put in adjustable valving at the same price that would be even better.
Bernie does not do an adjustable valving. He refers people to FCM for that. Do you still want me to add you to the revalve list?
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