 More gauge questions, now head temp and air/fuel gauges |
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| ynotdd |
 Jul 13 2004, 07:37 AM
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#1
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Member  Group: Members Posts: 156 Joined: 13-January 03 From: plainview, NY Member No.: 140  |
1st head temp. Who makes them / and is one better then the other? do they make one that does each cylinder with a switch? who sells?
2nd air/fuel which one have people had the best results with? thanks for your help ! Tony D (IMG:style_emoticons/default/beerchug.gif) (IMG:style_emoticons/default/flag.gif) |
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| seanery |
Jul 13 2004, 07:44 AM
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#2
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waiting to rebuild whitey! Group: Retired Admin Posts: 15,857 Joined: 7-January 03 From: Indy Member No.: 100 Region Association: None |
VDO makes the head temp. You can pick 'em up at Bus Boys. I bought 1 gauge with 5 extra sensors. I'm still looking for a switch that will work. When the car gets here I'll probably look more seriously.
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| seanery |
Jul 13 2004, 07:45 AM
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#3
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waiting to rebuild whitey! Group: Retired Admin Posts: 15,857 Joined: 7-January 03 From: Indy Member No.: 100 Region Association: None |
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| machina |
Jul 13 2004, 07:48 AM
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#4
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Advanced Member Group: Benefactors Posts: 2,030 Joined: 21-June 03 From: Miami Beach, FL Member No.: 848  |
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| DNHunt |
Jul 13 2004, 07:48 AM
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#5
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914 Wizard? No way. I got too much to learn. Group: Members Posts: 4,099 Joined: 21-April 03 From: Gig Harbor, WA Member No.: 598 |
I'm using a VDO head temp gauge. It matches the gauges in the console pretty well. It uses a thermocouple with a ring that replaces the sealing ring on a spark plug. It makes replacing plugs a pain but I'm glad to have the information. Mine is on #3 which is supposed to be the hottest cylinder.
A/f is a different matter. I know Innovative has a Wideband O2 unit that's pretty cool and Techedge has a couple of choices along with kits. I don't know how these display. Be prepared to spend some serious $$. Don't waste your time and money with a narrow band unit as our engines run off their scale. Dave |
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| ArtechnikA |
Jul 13 2004, 07:52 AM
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#6
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rich herzog Group: Members Posts: 7,390 Joined: 4-April 03 From: Salted Roads, PA Member No.: 513 Region Association: None |
here ya go: 4-channel CHT kit, not FAA approved for certificated aircraft (and therefore LOTS cheaper ...
Aircraft Spruce CHT kit |
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| seanery |
Jul 13 2004, 09:23 AM
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#7
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waiting to rebuild whitey! Group: Retired Admin Posts: 15,857 Joined: 7-January 03 From: Indy Member No.: 100 Region Association: None |
Rich,
do you know how those work? Are they like the VDO/factory style? |
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| ArtechnikA |
Jul 13 2004, 09:37 AM
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#8
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rich herzog Group: Members Posts: 7,390 Joined: 4-April 03 From: Salted Roads, PA Member No.: 513 Region Association: None |
QUOTE(seanery @ Jul 13 2004, 07:23 AM) do you know how those work? Are they like the VDO/factory style? since they come in 14mm and 18mm sizes i am ASSUMING that is the spark plug size for the ring-style thermocouple. some of the other CHT kits on that site used a different style sensor, tho... if you go back up to the "Cht Guages" link you'll see several varieties, including our familiar VDO guage. tech note for those considering CHT's - thermocouples product microvolts of power, and the guage head is very carefully calibrated. you must not make any changes to the thermocouple leads. do not shorten them. do not add connectors. this is one place where shopping at an outlet catering to the experimental aviation market is a plus -- most certificated aircraft are front-engine and the panel is fairly close to the cylinders. but several popular experimental category are pushers like our cars, and must have provisions for longer leads ... |
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