 oil temp, change OEM to calibrated |
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| qa1142 |
 Apr 11 2010, 04:26 PM
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#1
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Whiplash  Group: Members Posts: 1,514 Joined: 1-June 04 From: Lake Zurich, Illinois Member No.: 2,140  |
so I have this OEM VDO what calibrated gauge can I use?
Any idea what works with stock sender? (IMG:style_emoticons/default/idea.gif) Thanks Will Attached image(s) 
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| Tom_T |
Apr 11 2010, 06:09 PM
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#2
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TMI.... Group: Members Posts: 8,318 Joined: 19-March 09 From: Orange, CA Member No.: 10,181 Region Association: Southern California 
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That looks like the proper stock OT gauge for a 74 2.0, with the thin red band (73 had a wider band), so it should work with the stock sender.
Double check the part no. on the back, against the part no. in the Porsche 914 PET parts catalog (download free from Porsche website under Classics section if you don't have one already). |
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| realred914 |
Apr 11 2010, 06:27 PM
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#3
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Senior Member Group: Retired Members Posts: 1,086 Joined: 1-April 10 From: california Member No.: 11,541 Region Association: None |
what i have is a thermocouple on a hand held readout, teh thermocouple is on a longwire,t hat I insert intot eh dip stick hole. I warm up my 914, then return to my drive way I put in the thermocouple and start taking readings as it cools off,
On my VDO gage (just like yours) I take a felt pen and mark teh gage at 212F and a few other data points (212F is just near the midpopint by the way I tested more than one 914 oil gage and both are 212F near the mid point) thuus you can calibrate you vdp gage. frankly any gage with numbers is no more better than the stock gage with no numbers if you do not test it your self to make sure the manufactures numbers are right! i rather have an un-numbered gage that i put on own ink pen mark(s) on for my limits, than have a numbered gage and not be sure if it is right or not. Buy or borrow a thermocouple to use to calibrate you stock gage or any gage. have fun (IMG:style_emoticons/default/beerchug.gif) (IMG:style_emoticons/default/beerchug.gif) (IMG:style_emoticons/default/beerchug.gif) |
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| tat2dphreak |
Apr 11 2010, 09:00 PM
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#4
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stoya, stoya, stoya Group: Benefactors Posts: 8,797 Joined: 6-June 03 From: Wylie, TX Member No.: 792 Region Association: Southwest Region  |
imo, get the gauge with numbers (Pelican carries them, so I'm sure AA, GPR, whoever you like does too...) get a matching sender for accuracy.
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| bugsy0 |
Apr 11 2010, 09:41 PM
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#5
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Member Group: Members Posts: 191 Joined: 26-July 06 Member No.: 6,508 Region Association: None |
Do any of the manufacturers (VDO, Westach, etc.) provide calibration information or does everybody just believe they're accurate?
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| realred914 |
Apr 12 2010, 09:38 AM
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#6
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Senior Member Group: Retired Members Posts: 1,086 Joined: 1-April 10 From: california Member No.: 11,541 Region Association: None |
bootm line is it need be calibrated after install. the variations in folks wiring ability voltaghe supply in the car, etc... amke it impartive that you confirm calibration if you want to be accurate.
No I dont trust they gages right out of the box. You need to test the gage as it is set up to run. with the wires hooked up as you run in the car, with the same 12 volt power supply as in the car. that is the only way to be sure. get a known good standard that you trust, and campair it to teh gage you have installed. take readings both hot and cold and inbetween (oft the gages are NOT linear reading) test and test and test again. |
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