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FX3 problems, more questions,

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Old Sep 12, 2005 | 08:46 PM
  #1  
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From: Fear causes hesitaiton...and hesitation will cause your worst fears to come true. Houston TX
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Default FX3 problems, more questions,

If I swap the controllers behind the seats, will my problem be solved? I would really like to keep the revalved shocks in the new car.
.
See this thread:
http://forums.corvetteforum.com/show...64&forum_id=48

Any help greatly appreciated. If I have to, I'll switch the shocks back and do a coil over setup in the Z, but I'd rather not.
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Old Sep 12, 2005 | 08:57 PM
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Originally Posted by Rob 93ZR1
If I swap the controllers behind the seats, will my problem be solved? I would really like to keep the revalved shocks in the new car.
.
See this thread:
http://forums.corvetteforum.com/show...64&forum_id=48

Any help greatly appreciated. If I have to, I'll switch the shocks back and do a coil over setup in the Z, but I'd rather not.
Boy you sure are persistant.I doubt it would work.I have never heard of retrofiting to a different FX3 system.I would think there are other communications going on beside the the FX3 controller to the servo.I would not even try it.Just get your shocks revalved or get the controller add on that stiffens the system(make sure you get the right year if you do this).
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Old Sep 12, 2005 | 09:03 PM
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Rob-

The contoller only sends signals to the actuators to move the gear some amount based on vehicle speed and the position of the selector switch on the console.

As mentioned, the actuators are all the same. The factory controller is preset in terms of changing shock stiffness (i.e. how much the gear turns) based on the input from the VSS and selector switch. The difference in the shocks is basically how much of a range of travel the gear on the shock rod has to move so I would think that the controller has to be able to "know" how many degrees it can turn the gear. I think that's why the self-test is done so that the controller know the limits of the arc the shaft can turn. I would think that the early controller can't be used in the later car and vice versa.

FWIW, both Doug Rippie and Lingenfelter have aftermarket controllers that utilize removeable PROM's. The PROM's can be set up to control the shock gear to match the shock valving based on how the car will be used. IIRC, they are not too expensive and really work if you are wanting race-level suspension but still streetable ride.

George

(BTW, I sold my Polo Green roadster!!)
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Old Sep 12, 2005 | 09:17 PM
  #4  
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I agree with Redeasysport you are persistant.
Do you have Helms Manuals for both cars? If so check to see if all of the same signals are sent to the same (pins of the controllers.)
The FX3 gets a speed signal and some other input/outputs to your car. It looks like a simple system, however, my suggestion is to return the shocks back to the proper vehicles.
The C4 has to be one of the easiest vehicles to install shocks on.


Good luck.
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Old Sep 12, 2005 | 09:19 PM
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I am persistant, but I wanted to make sure there wasn't something reasonably easy before I go switch everything back. This has not been a fun lesson. I'm sure I'll be able to get everything back in less than 1/2 the time it took me to do it in the first place.
Thanks for your input.

BTW, Hi George!
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Old Sep 12, 2005 | 09:35 PM
  #6  
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Originally Posted by Rob 93ZR1
I am persistant, but I wanted to make sure there wasn't something reasonably easy before I go switch everything back. This has not been a fun lesson. I'm sure I'll be able to get everything back in less than 1/2 the time it took me to do it in the first place.
Thanks for your input.

BTW, Hi George!

Persistance is a good thing.

Good luck

Mike
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Old Sep 12, 2005 | 10:16 PM
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Ok, you opened a new thread on the topic. Like I said in the other thread, R&R for the SRC controller is easy. I think it may work, and I would try it.
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Old Sep 13, 2005 | 10:22 PM
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Did you try it yet?
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Old Sep 14, 2005 | 10:41 AM
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C4Cruiser is right...

You need to have a controller that is set for the new shocks.

I did the swap on mine years ago. Bought the controller after talking to Bilstein first. Installed everything at once and never had any problems with the FX3 system.

The swap should make it work immediately, as long as the shock-actuator test didn't mess anything up (actuators going too far, etc. and stripping the gear.).
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