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No handguns in Canada, but we do have SKSs for as low as $150US, about the only perk we have firearm wise. Good enough for black bear and cougars, even with 5 shots (our mag limit), cheap enough to ding up. If I'm going into griz country then 45-70 Marlin, trying to work up some +P rounds w/ 405gr.

? He IS looking at a GMT800 'Burb...

Could be wrong, but I believe all electronically shifted transfer cases need the transmission in neutral as well before going from 4Hi to 4Lo (Range Rovers are the only exception I know of). Internally they're the same, just a motor shifting instead of hand lever, and neither can shift with the...

That can't right!? Got my 05 LX with 85k for $15,500 Cdn 4 months ago. Ever thought about buying in Canada with our current weak dollar?

Comptiger is correct, the battery and alternator is essentially connect by a bus, and bus voltage is constant unless amperage demand exceeds alternator output, which can very well be the case under winching. There's not such thing as "just battery voltage", under non-winching conditions, every...

I've been into tractors a lot lately (one of my billion hobbies), and ran into a very interesting class of tractors - industrial tractors. These are farm utility tractors, modified at the factory into a very sturdy industrial platform to run a loader at industrial duty cycle. Whereas a farm...

I've done a lot of lead acid battery research over the years and can tell you this - while a deep momentary discharge on a STARTING OPTIMIZED battery may not show immediate effects, it will affect its lifespan. Even at 50% DOD (depth of discharge), high amp (thin plate) starting batteries can...

You're very welcome. And thank you for the feedback and calculations, appreciate it! I'm not discouraged at all, just been very busy with work lately to make any progress on this study. I knew very well what I was getting into starting this thread - it won't be everyone's cup of tea, or be as...

Warn Vantage 4000. 1.4 hp, 180:1 gearing. Calculations: Line speed and amperage wrt line pull: Power output and efficiency: Conclusions: 1) Much better than the 4500 model. Despite less rated power, the two winches are identical in real tests (495 vs 506 peak watts). 2) The BIG...

Interesting idea! Was thinking of something similar myself. Here we go, Pro Van 4500, 1.9 hp, 154:1 gear ratio. Calculations: Line speed and amperage wrt line pull: Power output and efficiency: Conclusion: 1) This is why I love doing these studies - one glance at the power and...

Absolute monster. Would love to see one head to head against the Oasis (no luck though, searched all over the net). My bet, at lower pressures the VTC would win due to better free flow. At higher pressures (>100 psi), the Oasis XD4000 would have the advantage due to the forced air cooling and...

You can find the specs here: http://www.aircompressorsdirect.com/Puma-PD1006-Air-Compressor/p13972.html Buzzard Gulch has it cheaper on Ebay: http://www.ebay.com/itm/12-volt-1-5-gal-air-compressor-Puma-Hotdog-PD-1006-/381554859127 I have one, and it's hard to beat for the price.

Which model is that again? It's too bad the Warns compressors were discontinued - bad economy perhaps? I remember the monstrous VTC that out flowed even the mighty Oasis at 0 psi, 20 CFM! The only high-power compressor they make today is the Powerplant winch, which I believe also free flows 12 cfm.

I may have mentioned this already, but on i8mud, there is a European fella who has an 80 series with PTO off the transfer case. He's running a high performance winch at high pressure and high flow rate, fed by an enormous 80L (21 gallon) behind his rear seat, with the pump where the factory...

All good points again. And this is why in my study, I make a note to point out winches that DON'T benefit at all from doubling up. These winches would be ideal for people that don't want all the hassle of a science experiment... The general trend seems to be the higher HP a motor has, the more...

VERY good point that you guys caught, and I missed! That should explain why the DV12 light uses a taller gear ratio than the regular DV12. It also shows just how good the Series 15 motor really is - it's spinning a larger diameter drum, and still gave the DV15 a serious butt kicking.

And that's the great thing about this (or any other) hobby - it lets people get creative and explorer things just for the sake of doing so. No time pressure, no deadlines, no paycheck :ylsmoke: Whenever I do a geek thread in any hobby, I find 3 groups: those that out-geek me, who takes the info...

Being Canadian, I totally agree! Had to convert a lot of numbers to imperial, even though I did the background crunching in metric. Didn't want to lose anyone with meters/s, newtons force, and kilowatts of power...

I find Summit's specs to be real misleading. If we look at Viair's site (under performance data): http://www.summitracing.com/int/parts/var-30033/overview/ The compressor does 2.4 CFM @ 0psi. At 90 psi it drops to 0.92 CFM. The best portable Viair offers is the 440P, it does 1.44 CFM @ 90...

For sure, but then we'd have to take into account the different pressure cutoffs of the two compressors (120ish for Puma, and 150ish for ARB), and then look at how the compressors perform at those elevated pressures... So I tried to keep things relatively simple and assume a 1.5g tank @ 120 is...