"hissing" coilovers?
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From: Hollywood Babylon
"hissing" coilovers?
are coil overs supposed to "hiss" as if air is leaking out during compression and rebound? while changing wheels the other day, and taking my car off the jackstands, I hopped up on the radiator support and gave a few jumps up an down to help settle the suspension. i noticed the front passenger side shock was hissing when going up and down, but didnt notice the same noise from the driver side.
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From: Canada
My TEIN's did that since day one. It wasn't a blown shock. However, in some cases the shock tube casing might become comprimised, releasing nitrogen. Usually if this happens, the compression piston inside the tube that prevents the nitrogen and oil from mixing, starts to seize. This might allow the oil to mix with the air and create a "foam" substance which will greatly decrease the movement of the shock.
If you notice a clunking noise or decreased movement from that same side, than I'd start to investigate. For now, just keep an eye on it
If you notice a clunking noise or decreased movement from that same side, than I'd start to investigate. For now, just keep an eye on it
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From: where typeRs grow on trees, NC
Re: (98 ITR)
my teins on my M3 make a "hissing" noise under compression all the frekin time!!....almost more like a "pssshhh" noise though...
my buddy clubs on my R might make the hissing noise, but since all I have on it is a turn down, kinda hard to hear the "hissing"
my buddy clubs on my R might make the hissing noise, but since all I have on it is a turn down, kinda hard to hear the "hissing"
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From: where typeRs grow on trees, NC
Re: (RTW DC2R)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by RTW DC2R »</TD></TR><TR><TD CLASS="quote">well these are brand new PICs, and Im just wondering why one side makes the noise, and the other doesnt. I havent tested the rear shocks yet. </TD></TR></TABLE>
I wouldn't worry too much about it...only heard good things about PIC's.
Contact Jim, or Al, i forgot which one.
I wouldn't worry too much about it...only heard good things about PIC's.
Contact Jim, or Al, i forgot which one.
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From: Giggidy Giggidy, Allllright
Re: "hissing" coilovers? (RTW DC2R)
My TEIN HA's may have done something similar to what you are refering. It was more of a squeeking under compression though. I suppose "hissing" or "squeeking" could be the same, hard to judge exactly what you mean without being there though.
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From: blavica
Re: (RTW DC2R)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by RTW DC2R »</TD></TR><TR><TD CLASS="quote">no I havent had a chance yet</TD></TR></TABLE>a
Why not? I'm curious what they will say too.
Why not? I'm curious what they will say too.
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From: where typeRs grow on trees, NC
Re: (Dave_B)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Dave_B »</TD></TR><TR><TD CLASS="quote">Why not?</TD></TR></TABLE>
he's obviously lazy
he's obviously lazy
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From: blavica
Re: (paRRRker)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by paRRRker »</TD></TR><TR><TD CLASS="quote">
he's obviously lazy</TD></TR></TABLE>
Ask him how long it took for me to recieve his resume on a job I found for him.
he's obviously lazy</TD></TR></TABLE>
Ask him how long it took for me to recieve his resume on a job I found for him.
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From: Hollywood Babylon
Re: "hissing" coilovers? (migs)
Heard back from PIC, email string below. My questions are answered and Im happy with the car as of right now and cant wait to get it on the track
Hello Ryan,
Can you describe the hissing sound? Do you hear it from inside the car? The only thing that might cause hissing during suspension travel is the dust boots, if they develop a puncture in the boot itself. The gas-chamber is hermetically sealed, and will not leak unless the actual chamber is forced open, which will not happen during normal operation.
As far as the differences in resistance during clicking, that is due to a few things, specifically the position of the floating needle inside the shock rod, but if the difference in resistance is always there, it is due to the spring used in the adjuster itself. Basically, the click you hear is a ball bearing being popped into a detent in the adjuster, and there were different types of springs used in our adjusters – some are stiff, some are softer, but it won’t affect the actual adjustments.
The darty rear end is understandable, and it will definitely be due to the springs, the Select R3’s being a track-oriented setup. There were not many concessions made for street driving with the R3’s, since it would take away from damping need for high speed track use. A 14kg/mm spring is going to be stiff any way you slice it though. You can drop down to a 12k spring in the rear and stick to the lower damping settings with those, and that should help ride quality noticeably. Definitely let The Building Room know if you get some lower rates, and we’ll work something out for you.
Safe Driving,
The Sales Team @ PIC Performance
Tel: 630-364-1412
Fax: 630-364-1409
http://www.PICPerformance.com
--------------------------------------------------------------------------------
From: Ryan
Sent: Wednesday, May 02, 2007 9:18 AM
To: sales@picperformance.com
Subject: few questions about my PIC Selects
Hey whats up, I recently purchased a set of PIC Selects 12k/14k for my ITR. I just have a few questions/concerns.
I noticed the other day that the front passenger side shock is hissing during compression and rebound. The driver side does not seem to make this noise, nor do the rears. Is this a potential problem?
Secondly, I noticed that the rear adjustment ***** are pretty easy to turn compared to the front *****. The rears almost seem to turn freely compared to the front. They still 'click' but almost have no resistance when turning. I have noticed the rear of the car bounces quite a bit, so Im wondering if something is up with the rear adjustments. Its difficult to tell if its a problem with the damper adjustment or just the result of the stiff spring rates.
Finally, I am wondering if its possible to pick up an extra set of springs to swap onto the Selects. I think I may want to have a bit softer spring in the rear since it seems to want to 'skip' around the road, even on the softest setting. Dampening over bumps is fine, but its the shallow sways and rolls in the highway that make the rear want to bounce around, almost as if there was not weight at all on the rear.
Thanks for your time. I look forward to hearing from you. Ryan
Hello Ryan,
Can you describe the hissing sound? Do you hear it from inside the car? The only thing that might cause hissing during suspension travel is the dust boots, if they develop a puncture in the boot itself. The gas-chamber is hermetically sealed, and will not leak unless the actual chamber is forced open, which will not happen during normal operation.
As far as the differences in resistance during clicking, that is due to a few things, specifically the position of the floating needle inside the shock rod, but if the difference in resistance is always there, it is due to the spring used in the adjuster itself. Basically, the click you hear is a ball bearing being popped into a detent in the adjuster, and there were different types of springs used in our adjusters – some are stiff, some are softer, but it won’t affect the actual adjustments.
The darty rear end is understandable, and it will definitely be due to the springs, the Select R3’s being a track-oriented setup. There were not many concessions made for street driving with the R3’s, since it would take away from damping need for high speed track use. A 14kg/mm spring is going to be stiff any way you slice it though. You can drop down to a 12k spring in the rear and stick to the lower damping settings with those, and that should help ride quality noticeably. Definitely let The Building Room know if you get some lower rates, and we’ll work something out for you.
Safe Driving,
The Sales Team @ PIC Performance
Tel: 630-364-1412
Fax: 630-364-1409
http://www.PICPerformance.com
--------------------------------------------------------------------------------
From: Ryan
Sent: Wednesday, May 02, 2007 9:18 AM
To: sales@picperformance.com
Subject: few questions about my PIC Selects
Hey whats up, I recently purchased a set of PIC Selects 12k/14k for my ITR. I just have a few questions/concerns.
I noticed the other day that the front passenger side shock is hissing during compression and rebound. The driver side does not seem to make this noise, nor do the rears. Is this a potential problem?
Secondly, I noticed that the rear adjustment ***** are pretty easy to turn compared to the front *****. The rears almost seem to turn freely compared to the front. They still 'click' but almost have no resistance when turning. I have noticed the rear of the car bounces quite a bit, so Im wondering if something is up with the rear adjustments. Its difficult to tell if its a problem with the damper adjustment or just the result of the stiff spring rates.
Finally, I am wondering if its possible to pick up an extra set of springs to swap onto the Selects. I think I may want to have a bit softer spring in the rear since it seems to want to 'skip' around the road, even on the softest setting. Dampening over bumps is fine, but its the shallow sways and rolls in the highway that make the rear want to bounce around, almost as if there was not weight at all on the rear.
Thanks for your time. I look forward to hearing from you. Ryan
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