Micro level preview

The 9294 and my kit have a max lift 1/4" lower than the max lift I measured
on the oem set up from the bogey pivots to the road. 1/4" less lift at the
bogeys will prevent over extension of the shocks since 1/4" at the bogeys
will be an even greater reduction of extension at the shocks.
The cone end on the 9294 is similar in design to the oem with the cone
being a separate removable piece. The bag is only permanently attached to
the plate end with the fill port.

Sully
77 eleganza 2
Seattle

> Ken / Keith,
>
> I stumbled on to this researching the pressure question, I have no idea if
> it is relevant to your question but thought it might be
> helpful.
>
> Ref: MM X-7525 / Section 4 - Rear Suspension / Page 4-25 / Paragraph -
> Time Delay Check / Preliminary Procedures:
>
> After the valve lever gaps have been adjusted, to a time delay check. A 4
> to 18 seconds delay from the closing of one valve to the
> opening of the other is recommended. Also, valves should close from
> full-open position within 4 seconds.
>
> Regards,
> Rob M.
> USAussie - Downunder
> AUS '75 Avion - The Blue Streak TZE365V100428
> USA '75 Avion - Double Trouble TZE365V100426
>
>
> -----Original Message-----
> From: Gmclist [mailto:gmclist-bounces ] On
> Behalf Of Ken Henderson
> Sent: Monday, October 10, 2016 7:40 AM
> To: gmclist
> Subject: Re: [GMCnet] Micro level preview
>
> Keith,
>
> Very nice work!
>
> I'm curious about your chart of Ride Height Data. I presume that's the raw
> data from the ride height sensors. Otherwise I'd expect to see only binary
> signals to the valves.
>
> How much delay (hysteresis) do you have built into the system (like GMC's
> 4s.-18s.)? Is that operator adjustable as a configuration setting? I ask
> primarily because it seems to me that the hysteresis needed depends upon
> the characteristics of the air bags and the available pressure and volume
> from the compressor. If the system is set up for bags requiring high
> pressure and a slow compressor, the delay would presumably be shorter than
> for a low bag pressure/fast compressor vehicle. A setting suitable for the
> former might make the latter too sensitive to dynamic loads.
>
> Do you intend to preserve GMC's long delay or to shorten it for "real time"
> operation?
>
> Still Curious Old Cat. :-)
>
> Ken H.
>
>
> On Thu, Oct 6, 2016 at 7:37 PM, Keith V
> > Finally ready to show off the working prototype
> >
> > Introducing Microlevel.
> > Totally electronic
> > microprocessor controlled
> > True height measuring sensors
> > Horizon leveling
> > RF remote control
> > Replaces PowerLevel and ElectroLevel
> >
> > http://www.gmcmhphotos.com/photos/data/6645/medium/CAM00345.jpg
> >
> > --
> > Keith Vasilakes
> > Mounds View. MN
> > 75 ex Royale GMC
> > 69 Vette
> > 29 Dodge
>
>
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
 
Absolutely awesome! We've needed a good option for a good replacement system. I know on my EL2 the electronic height sensors are getting harder to
find.

Great job Keith !
 
Thanks Rob,
My system is a bit more complex
When getting to ride height it uses a short delay, then once height is achieved it switches to a very long delay, minutes actually.
So once it's at height it doesn't adjust very often, but if it does have to adjust, it uses a fast filter while filling or dumping.
Also when the height is close it only pulses the pressure, waits and pulses it again until it's right on.
This make it more accurate and less prone to overshoot and hunting

----------------------------------------

>
> Ken / Keith,
>
> I stumbled on to this researching the pressure question, I have no idea if it is relevant to your question but thought it might be
> helpful.
>
> Ref: MM X-7525 / Section 4 - Rear Suspension / Page 4-25 / Paragraph - Time Delay Check / Preliminary Procedures:
>
> After the valve lever gaps have been adjusted, to a time delay check. A 4 to 18 seconds delay from the closing of one valve to the
> opening of the other is recommended. Also, valves should close from full-open position within 4 seconds.
>
> Regards,
> Rob M.
> USAussie - Downunder
> AUS '75 Avion - The Blue Streak TZE365V100428
> USA '75 Avion - Double Trouble TZE365V100426
>
>
> -----Original Message-----
> From: Gmclist [mailto:gmclist-bounces] On Behalf Of Ken Henderson
> Sent: Monday, October 10, 2016 7:40 AM
> To: gmclist
> Subject: Re: [GMCnet] Micro level preview
>
> Keith,
>
> Very nice work!
>
> I'm curious about your chart of Ride Height Data. I presume that's the raw
> data from the ride height sensors. Otherwise I'd expect to see only binary
> signals to the valves.
>
> How much delay (hysteresis) do you have built into the system (like GMC's
> 4s.-18s.)? Is that operator adjustable as a configuration setting? I ask
> primarily because it seems to me that the hysteresis needed depends upon
> the characteristics of the air bags and the available pressure and volume
> from the compressor. If the system is set up for bags requiring high
> pressure and a slow compressor, the delay would presumably be shorter than
> for a low bag pressure/fast compressor vehicle. A setting suitable for the
> former might make the latter too sensitive to dynamic loads.
>
> Do you intend to preserve GMC's long delay or to shorten it for "real time"
> operation?
>
> Still Curious Old Cat. :-)
>
> Ken H.
>
>

>
>> Finally ready to show off the working prototype
>>
>> Introducing Microlevel.
>> Totally electronic
>> microprocessor controlled
>> True height measuring sensors
>> Horizon leveling
>> RF remote control
>> Replaces PowerLevel and ElectroLevel
>>
>> http://www.gmcmhphotos.com/photos/data/6645/medium/CAM00345.jpg
>>
>> --
>> Keith Vasilakes
>> Mounds View. MN
>> 75 ex Royale GMC
>> 69 Vette
>> 29 Dodge
>
>
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
 
Great job! But don't forget to make an ElectroLevel-sized control panel available (I'm pretty sure the PowerLevel panel is larger).
--
Nick Chapekis
Ypsilanti, MI
78 Kingsley
 
Oh interesting, I thought they were the same size.
Can you get me the dimensions of the EL panel?

----------------------------------------

>
> Great job! But don't forget to make an ElectroLevel-sized control panel available (I'm pretty sure the PowerLevel panel is larger).
> --
> Nick Chapekis
> Ypsilanti, MI
> 78 Kingsley
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
 
> Finally ready to show off the working prototype
>
> Introducing Microlevel.
> Totally electronic
> microprocessor controlled
> True height measuring sensors
> Horizon leveling
> RF remote control
> Replaces PowerLevel and ElectroLevel

That is cool thanks for developing it.
--
Wally Anderson
1975 Glenbrook
Megasquirt 455 port injection science project
Omaha Nebraska
Bob Stone hydroBOOOOST
Greater Midwest Classics
GMCES
http://wallyandsue.blogspot.com/