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Another thing, the more discharged a lead acid battery is, the less free acid is in the water - less acid means higher freeze temperature. A 12v car battery has 6 cells. State of charge for lead acid usually runs 2.1v per cell @ 100%, down to 1.95v per cell @ 0%. This is measured with no...

The boot parts came, in good shape. Just need the outer skin of the open end coupler/boot... and two more tents :)

You will want to see >26Volts from the 24v battery + to ground, and >13Volts from the 12v battery + to ground while running.

Insulation only slows the movement of heat, it doesn't stop it. In thermodynamics, heat is always lost to cold, so you aren't holding cold or hot so much as changing the influence of where your heat is lost to and how fast. Your house is warm because there is a heater running every so often -...

No worries, thanks for the suggestion - I did look at all options, the thermal solution has been coming into focus over the last two months or so. Peltiers have their place, but the power cutoff is around 150-250 watts. Even at that power level it's beat by other cooling methods, like heat...

Drifting, but I know... nopics, so for you... My oldest got to see it last year - so I'm the coolest Dad he knows of... :)

Yes, I have vast experience with Peltiers. IMHO, they suck for high powered cooling :). A CCD will probably dissipate ~15-20Watts if it's a big imager like the EM-CCDs used for life science and other interests, a Peltier can handle that because it takes about 150-200% of the power of the device...

Yeah, those are awesome! I bought 4x of those to put in the end of an extendable painter's pole. Put it in the cab when not in use, clamp it to a headache rack when I need/want a portable 18' light tower :) (plus bed height it will be more like 22') [EDIT:] For my front lights, I don't want...

Bi-Xenon HID kits have been available for about a decade. They use standard H4 housings, and have an electromagnetic actuator to slide the arc and a shutter from the shielded low beam position, to an unshuttered high-beam position. On my Toyota I run a set in Cibie 200mm E-Code (5"x7"...

I don't disagree, for my part the DRLs that function when people turn on their parking lights bug the h311 out of me, or the electronic dash boards that are backlit which when combined with DRLs sucker morons into thinking their headlight came on automatically when in fact they are running...

Well at least that one is a LAW: http://www.gpo.gov/fdsys/pkg/CFR-2004-title49-vol5/xml/CFR-2004-title49-vol5-sec571-108.xml S5.5.11(a)(4)(iv). "S5.5.11(a) Any pair of lamps on the front of a passenger car, multipurpose passenger vehicle, truck, or bus, whether or not required by this...

Any video? :)

I'm wary of mixing systems and adding meanings to warning sounders - wouldn't want to think I had my turn signal on when my air was low, and wouldn't want a turn signal mod to potentially risk the low-air warning from not working... :2cents: Perhaps presumptuous of me but I saw the M35 in his...

If you can't find it, wire in a 24V beeper and put it in your dash facing you. Positive lead with a 1-amp ATO fuse to the H-pin coming out of the turn signal switch, negative to ground. Beeps with the turn signal flash, and like the model I linked you can adjust the volume :).

You could also look into dual speed differentials - Rockwell makes diff-carriers with planetary reducers for an extra low, if you're lucky you can just drop them in. This way you can set the ring/pinion and tire size for highway speeds in your high gears and you still get another level of low...

I haven't really started that build other than basic tear down of the rotting stuff. Killed the mold and rust and put it in "preservation mode" until such a time as I have a house :). Please, just Tim - the "292" came from a late 1990's problem with user name lengths on many of the early...

I have USAA. Without a doubt, the best insurance company I ever dealt with. It's funny having a State Farm/All State agent excitedly asking what insurance company I use in the hope that they might steal me away, only to watch their excitement vanish with a depressed "Oh..." when I mention...

One idea I'm using on mine is to use 2" receiver tube where the factory tie downs are - and I want to do the same in the rear, and ensure the widths are the same. This way I can use them not only as tie downs, but can build accessories that mount to the receivers.

Always good to take notes the first time you use something, you'll certainly find something you want to tweek. :)

I tied off the other half of the side-to-side boot kit purchase today, and managed to find the liner portion of the open-end-to-open-end kit on e-place. I picked that up too. I'll put a feeler out in the classifieds for the outer shell of the open-end-to-open-end kit. Another step closer and...