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      Yesterday, 12:07 PM   #8185
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Originally Posted by roastbeef View Post
Anyone have anything good or bad to say about Motion Control Suspension?
MCS suspension setups are awesome! Iíve used JRZ, Moton, TCK and MCS setups on my e46 M3, e92 M3s and f82 M4 - the MCS 2WR setup is by far my favorite suspension setup.
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      Yesterday, 12:11 PM   #8186
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Originally Posted by jid2 View Post
Question for the group.

On my DCT car I am getting low RPM high load knock like crazy. Didn't notice it much when I first got the car, but this fall and winter it is really lame. Gas in the Northwest is 92, perhaps the winter blend is what's doing it. I also feel like the Alpine tune I have is trying to put too much timing into that portion of the map to give it better low RPM response.

Anyone else deal with this?
Iím running BPM stage 2 and havenít experienced this...Have you tried installing the stock tune and see how the car runs compared to the Alpine tune?
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      Yesterday, 01:58 PM   #8187
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^^^^ That's on my to-do list. Just haven't felt like getting out the computer and remembering what it involves.
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      Yesterday, 06:00 PM   #8188
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Quote:
Originally Posted by jid2 View Post
^^^^ That's on my to-do list. Just haven't felt like getting out the computer and remembering what it involves.
hmm i thought our cars had knock sensors and that timing sets were based on targets.....ie car won't advance timing knowing it's knocking?
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      Yesterday, 08:26 PM   #8189
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Does anyone use an OEM double-pane/fog-free helmet visor? I'm not talking about those stick-on things or the sprays, I mean a legit one from Bell or whoever.

If so, do you have problems with glare or reflections of your face on it?
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      Today, 02:22 PM   #8190
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installing JRZ RS2 in a couple of weeks and buying additional parts that I need to source. Do I need thrust sheets for front and rear or just front or none at all. I'm going with a 6" spring and no helper spring, with JRZ does the spring unseat like it does with KW when both wheels are up in the air? I don't think I use them on my KW (thrust sheets).
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      Today, 04:54 PM   #8191
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Did anyone else get into the Speed Secrets "braking and corner entry" webinar? I wasn't able to participate, but I paid to get access to the recordings. I'm only ten minutes in and I can tell it's going to be fantastic.
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      Today, 06:08 PM   #8192
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Quote:
Originally Posted by M3 Number 86 View Post
installing JRZ RS2 in a couple of weeks and buying additional parts that I need to source. Do I need thrust sheets for front and rear or just front or none at all. I'm going with a 6" spring and no helper spring, with JRZ does the spring unseat like it does with KW when both wheels are up in the air? I don't think I use them on my KW (thrust sheets).
Thrust bearings are optional. It will eliminate spring bind. I noticed it primarily during low speed turns with elevation change (like entering a driveway). My KW's used to make noise in those instances. I have them on my Ohlins and I do not experience anything like that). I think there's performance advantage in a track environment but I don't know that the impact is obvious.

Nobody can answer your question about the spring unseating without a helper. That's dictated by the travel of the shock and your ride height. Think about it. If your dampers are designed to run at up to stock ride height and you slam them 2" below that then at full droop that extra travel is taken up by the helper. However you can try to spec your planned ride height with JRZ and they can adjust the internals accordingly. However keep in mind that there is a very small margin of error there - it seems to me you would need to install, set ride height, remove and send back for them to get it perfect. There's a reason why most suspension kits come with helper springs.

I have had multiple discussions with PSI in Sonoma about this topic. Eventually I will send my suspension into them to have them adjust the internals to allow me to delete the helper at my ride height.
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      Today, 06:20 PM   #8193
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Quote:
Originally Posted by slicer View Post
Thrust bearings are optional. It will eliminate spring bind. I noticed it primarily during low speed turns with elevation change (like entering a driveway). My KW's used to make noise in those instances. I have them on my Ohlins and I do not experience anything like that). I think there's performance advantage in a track environment but I don't know that the impact is obvious.

Nobody can answer your question about the spring unseating without a helper. That's dictated by the travel of the shock and your ride height. Think about it. If your dampers are designed to run at up to stock ride height and you slam them 2" below that then at full droop that extra travel is taken up by the helper. However you can try to spec your planned ride height with JRZ and they can adjust the internals accordingly. However keep in mind that there is a very small margin of error there - it seems to me you would need to install, set ride height, remove and send back for them to get it perfect. There's a reason why most suspension kits come with helper springs.

I have had multiple discussions with PSI in Sonoma about this topic. Eventually I will send my suspension into them to have them adjust the internals to allow me to delete the helper at my ride height.
i think i'll go with the thrust sheets (not bearings, keep it cheap lol).
Regarding full droop, I just didn't want such a huge gap where in that case I would just throw on the helper springs.
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