MMCd New Features - Page 2 - 3000GT/Stealth International Message Center

cbatters · 03-28-2004, 02:50 PM

LOW COST SENSORS

Any suggestions on low cost Fuel / oil pressure sensors. Ideal sensor would be 0-100 PSI with a +5 power supply (or unregulated 10-15V) and a 0-5V output.

Would also appreciate input on EGT sensors. Not sure if these are always thermocouples or if some are high terperature RTDs. If we standardize on a particular type of sensor we could include the necessary signal conditioning.

Clint

Storm Strike · 03-28-2004, 08:04 PM

Oil pressure sender: Autometer ATM-2242 $29 from Summit. Might need the metric adapter, as there aren't many places to tap into.

Not sure about cheap fuel pressure senders. Autometer electrical analog fuel pressure gauge/sensor costs almost $200, most of that cost is probably the sensor.

Most EGT probes are thermocouple type, I think.

I'm already installing OP, FP, and EGT gauges, so I'd need to be able to tap into the existing sensors for logging. Everyone else that has already added gauges will too. Not sure how your going to make a universal setup for any type of gauge/sensor combination.

skunkworks · 03-29-2004, 04:35 AM

What about a peak-hold option for boost and o2 or all. Didn't think anyone mentioned it.

Alarms kinda worked for me to check peak - just kept turning the alarm up until it stopped beeping.

sam

cbatters · 03-29-2004, 05:00 AM

Quote:

Originally Posted by samco

What about a peak-hold option for boost and o2 or all. Didn't think anyone mentioned it.

Alarms kinda worked for me to check peak - just kept turning the alarm up until it stopped beeping.

sam

#2 under New Software Features on first page. Tapping on the screen will toggle between current data and peak value.

Clint

skunkworks · 03-29-2004, 05:02 AM

sorry - read over to fast. can't wait! this is going to be great.

I was half expecting somebody to come back and say - we already have that.

sam

cbatters · 03-29-2004, 07:13 AM

Quote:

Originally Posted by Storm Strike

Oil pressure sender: Autometer ATM-2242 $29 from Summit. Might need the metric adapter, as there aren't many places to tap into.

Not sure about cheap fuel pressure senders. Autometer electrical analog fuel pressure gauge/sensor costs almost $200, most of that cost is probably the sensor.

Most EGT probes are thermocouple type, I think.

I'm already installing OP, FP, and EGT gauges, so I'd need to be able to tap into the existing sensors for logging. Everyone else that has already added gauges will too. Not sure how your going to make a universal setup for any type of gauge/sensor combination.

Found some 0-100 PSI pressure senders from VDO that can be used for either oil or gas. There is also a conmbo sender / switch that I am investigating as a possible replacement for the existing oil pressure switch assembly.

During you install, please measure the voltage on the OP / FP sensor terminal with respect to ground and advise voltage / PSI relationship.

Clint

cbatters · 04-08-2004, 10:22 PM

Changed scaling on O2 graphs so 1.25V = full scale. (Tired of straining to see O2 voltages)

Also noticed air and coolant graphs are upside down. (Increase in temp was causing graph to go down.)

Clint

cbatters · 04-09-2004, 09:53 AM

Quote:

Originally Posted by Zoodled

Are you distributing the source with the executables as required by the GNU license?

How about a friendlier, less offensive question like"

"Is source code available yet for the enhancements you are contemplating?"

Clint

cbatters · 04-09-2004, 10:28 AM

Adding link at start of thread to current source code to fulfill my GNU obligations. Maybe we can get Zoodled to roll up his sleeves and make the rest of these enhancements.

NOTE:I already contacted Dmitry about adding the changes I made to the standard MMCd distribution. Also provided source code to TurboBob a while ago who is investigating large display characters.

Clint

cbatters · 04-09-2004, 01:51 PM

Quote:

Originally Posted by Zoodled

Clint,
I apologize for my abruptness I do not wish to upset or harm you. It was not meant to be a threat, but a reminder. The executable had been around for a while so I figured you forgot. By the speed by which you posted the file, I figure you had it ready.

I will leave you alone now.
Joe

...sorry for my hyper sensitivity today... your well intentioned comment just struck a raw nerve.

Also sorry to hear that you are punting on the Pocket PC effort. Data logger would benefit from the larger screen of Pocket PC devices.

New communication bridge / input expansion I am working on will at least allow use of some of the latest Palm devices with bigger brighter screens.

Hadn't done an embedded controller project in ~10 years and am amazed by the "Power of the Pic". This entire interface will be 2 chips (14 pin PIC chip + RS232) and a few discrete capacitors / resistors.

Have a good weekend.

Clint

03-28-2004, 02:50 PM	#11 (permalink)
cbatters Member: Burned valve club Join Date: Jun 2002 Location: Stoughton, MA Drives: 91 Stealth RT/TT Trader Rating: (12)	Re: MMCd New Features LOW COST SENSORS Any suggestions on low cost Fuel / oil pressure sensors. Ideal sensor would be 0-100 PSI with a +5 power supply (or unregulated 10-15V) and a 0-5V output. Would also appreciate input on EGT sensors. Not sure if these are always thermocouples or if some are high terperature RTDs. If we standardize on a particular type of sensor we could include the necessary signal conditioning. Clint __________________ 1991 Stealth RT/TT - Firestorm Red - 193K Miles / Original Owner Maint: Castrol 10W40 / Mitsu Filter / Rislone Replaced: 2X clutch / 3X brakes / 2X front rotors / 2X ABS HU / 1X NGK Plugs / 1X Ball joints / 2X Antenna mast / 1X Active exhaust cable / 1X Windshield / 1X Fuel FIlter / 1X Struts / 1X rear rotors / 1X Front Head / VSS / 1X rear wheel bearings / 1X Transfer case (warranty) / 1x Tie rod end (drivers side) Overhauled: Starter, IAC, BISS, CV Boots Upgrade: SilverStar Headlights / ebay "Xenon" Fog Bulbs (no more yellow!) A/F Gauge / MAP - Electronic Boost Logging / MMCd Data Logger Pending Projects: Steering Rack

03-28-2004, 08:04 PM	#12 (permalink)
Storm Strike Forum Member Join Date: May 2002 Location: PA Trader Rating: (8)	Re: MMCd New Features Oil pressure sender: Autometer ATM-2242 $29 from Summit. Might need the metric adapter, as there aren't many places to tap into. Not sure about cheap fuel pressure senders. Autometer electrical analog fuel pressure gauge/sensor costs almost $200, most of that cost is probably the sensor. Most EGT probes are thermocouple type, I think. I'm already installing OP, FP, and EGT gauges, so I'd need to be able to tap into the existing sensors for logging. Everyone else that has already added gauges will too. Not sure how your going to make a universal setup for any type of gauge/sensor combination. __________________ '92 Stealth RT/TT, Sandstorm, 125K miles Currently installed: E-MBC, SS brake lines, Motul 600 BF, FN01R-C rims, ATR DP, test pipe, and exhaust, EK2Mfg EGR blockoff plates, MAFT-Pro, S-ITC, Dejon Tool intake runners, JIC FTL-A2 struts, PST CFDS, Tial BOV, MSD 8.5mm plug wires, Accelerated Motorsports catch can, Ebay FMIC, Evo 560's, IPO dual feed fuel lines, Greddy P/W/H EGT gauge, IPO battery relocation, Optima red top, PWR radiator, DSM shifter bushings, custom WW fluid tank, Saner F/R swaybars, PLX WB O2 setup, SCE StopTech ST-40 332x33 front brake upgrade & 300mm rear rotors, SCE tender springs, SCE caster/camber plates, Titan Bending f header, 15G turbos,forged crank, Crower rods, Weisco pistons, DR Stage 2 heads, TRS seats, 5 pnt harnesses.

03-29-2004, 04:35 AM	#13 (permalink)
skunkworks No loer a Noob? Join Date: Aug 2001 Location: Holmen, WI Drives: low impedance inputs Trader Rating: (9)	Re: MMCd New Features What about a peak-hold option for boost and o2 or all. Didn't think anyone mentioned it. Alarms kinda worked for me to check peak - just kept turning the alarm up until it stopped beeping. sam __________________ 92 Stealth R/T TT - 13t's Installed. note:Is the machining right? - boosting to 15psi so far. Do I do this for others? No. robbeck is your man.... We know his work .

03-29-2004, 05:02 AM	#15 (permalink)
skunkworks No loer a Noob? Join Date: Aug 2001 Location: Holmen, WI Drives: low impedance inputs Trader Rating: (9)	Re: MMCd New Features sorry - read over to fast. can't wait! this is going to be great. I was half expecting somebody to come back and say - we already have that. sam

04-08-2004, 10:22 PM	#17 (permalink)
cbatters Member: Burned valve club Join Date: Jun 2002 Location: Stoughton, MA Drives: 91 Stealth RT/TT Trader Rating: (12)	Re: MMCd New Features Changed scaling on O2 graphs so 1.25V = full scale. (Tired of straining to see O2 voltages) Also noticed air and coolant graphs are upside down. (Increase in temp was causing graph to go down.) Clint

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