I just installed DiPricol Optix boost and egt guages.

I ordered the BD manifold and should have it within a day or so.

I was wondering if it would hurt to shorten the wire to the Thermocoupler.

I'm trying to neaten things up under the hood and dash.

Last I heard that is a no-no on thermocouples. It affects the readings.

Suck the wire up underhood to look good, then wrap and tie the excess out of the way under the dash.

Don't shorten them. DiPricol sells all different lengths of lead wires if you need them. I believe they make them in 7, 10, 12, and 14 feet and longer if you need a shorter length than what you've got.

I believe I used a 14' to go from the passenger side manifold up to the overhead console.

On a thermocouple you can shorten or lenghten the wires without affecting the reading, as long as you use the correct type of wire when lengthening. If you were using an RTD, however, those can be affected by wire length depending on what type of RTD it is. That said, I would likey leave them full length so that I would have some extra slack available in case part of the wire gets damaged.

Where does one purchase the correct thermocoupler extension cable? I'm trying to hook one up for my EFI Live and my leads are at least a foot or two short.

As long as you don't cut the thermocouple wires, adding length is not going to affect anything. See, the wire in the thermocouple is "special" and generates a voltage when it gets hot. If you cut the wire, the voltage changes.

You can get most anything thermocouple related from Omega Engineering (http://www.omega.com). In reply to McRat: Shortening the thermocouple wires will not affect the temperature readings. A thermocouple works by creating a voltage when two different metals touch. In the case of K type thermocouples the metals are Chromel and Alumel. The voltage output is proportional to the temperature of the point where the metals connect. The reason you need to use the proper wire to extend the thermocouple is to avoid having additional places where different metals connect between the senor and the gauge. For example, if you extended the wires with copper wire you would have the normal Chromel-Alumel connection at the sensor, plus a Chromel-Copper and an Alumel-Copper connection before you got to the gauge. The additional connections would act like two extra thermocouples, which would throw off the readings. Since shortening the thermocouple doesn't add any additional connections, no error is added. Hope that all made sense.;)

McMaster-Carr has everything you need to make or extend thermocouple wires.

Post some pics when you are done.

So, I've installed my probe (left over from my Edge - never hooked it up) and have the leads inside the cab of my truck. The two leads are different length. I can cut the terminals off to the same length, strip back the coating and connect it to the orange plug, then plug that into my EFI black box for my computer - correct?

Yes.

thank you

:nopics:

I have an additional question reguarding extaending the t-couple length. What is the best means to terminate the cable extension? Will soldering the wires throw off accuracy?

Either soldering or crimping on end connectors will not significantly change the temperature accuracy.

MJB, thanks for the input. I have extended t-couple cable by mechanical means in an industrial environment. Just never soldered them. Thaks for the reply!