very nice. are that the color the lunar gauges come with or did you use a dimmer or something?Originally posted by jeffsvt
Here is a picture of my Lunar gauges if it helps you any .
very nice. are that the color the lunar gauges come with or did you use a dimmer or something?Originally posted by jeffsvt
Here is a picture of my Lunar gauges if it helps you any .
I don't know if one is "better" or not. Depends what you consider better. All the electrical gauges have a small sending unit, that you thread into what you are trying to measure, then there is just a small wiring harness (3 wires) to connect the sender to the back of the gauge. The wires are easily bent, and routed in cramped places. The gauges themselves are light weight, they just have a tiny motor in them, connected to the pointer through a gearbox and some circuitry. The mechanical gauges use the fluid you are measuring to physically move the pointer. A mechanical oil pressure gauge routes the hot oil into the car, through small tubing into the back of the gauge. Mechanical boost uses a small length of tubing to route the "air" from the intake manifold into the back of the gauge, to read pressure or vacuum. Mechanical fuel press, same as oil pressure, you are routing the fuel into the car, under high pressure, very bad if you get a leak. Now a mechanical Temp gauge is a bit different, you couldn't accurately measure the tempurature of a fluid if it traveled through 6 or 8 feet of tubing. So with those, you get a sealed capillary tube, it's fixed to the back of the guage, and the temp sending bulb is fixed to the other end of the capillary tube. The bulb on the end heats up, and applies pressure to the gas inside the sealed capillary tube, this pressure then is "read" by the gauge, and converted to a temp readout. These are the most difficult to install, since the length is not adjustable, if it's too long you just coil the capillary tubing somewhere (but not too tight, if you crimp it, it may break) you also need a fairly large hole in the firewall to feed the whole sender and tubing through (it's all one piece from the gauge to the engine) Even installing it into a dash pod can be a bear, as you have to feed that whole mess down around the instrument cluster and through the dash, and the firewall, (the tubing doesn't bend corners nearly as easily as a small wire)Originally posted by Flatliner
Second what is the difference between a mechanical/ electrical...? Do mechanical's use senders or not? I noticed that some guages such as fuel pressure come in both, yet I know one is not safe to have in car, I am guessing that would be a mechanical. Is anyone better?
I thought there were some mech fuel pressure gauges as I described above, and they say "for installation outside the vehicle only" kinda like most exhaust systems are "for offroad use only"Originally posted by jimh
Mechanical fuel pressure gauges do not route fuel into the car as it is illegal both on the street and the track because of obvious safety concerns.
Originally posted by BBriBro
I thought there were some mech fuel pressure gauges as I described above, and they say "for installation outside the vehicle only" kinda like most exhaust systems are "for offroad use only"
I hear ya :lol: I've been down that road, but it starts get expensive too, when you have to mail order everything, and just for trial and error, cause no one can answer specific questions.Originally posted by Flatliner
The analness continues!