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Warn 8274 Calculations: Line speed and amperage wrt line pull: Power output and efficiency: Summary: 1) Tada, we have a new champ in efficiency at 49.1%. My guess? The spur gears are more efficient than the planetary gears. The motor is a run of the mill Bosch 4.6hp, nothing special...

ComeUp Blazer Calculations: Line speed and amperage wrt line pull: Power output and efficiency: Summary: 1) This winch is geared very tall, and power drops off sharply after 4000 lbs 2) Efficiency also drops sharply after 4000 lbs 3) Interestingly enough, the peak efficiency, for all...

First up, the Badlands 12k. Nothing fancy, just standard Excel plots. Starting off with the calculations: Line speed and amperage with respect to line pull: Power output (line pull x speed / 33000 x 746), in watts, and the efficiency (output over electrical input): If I were to...

What's even more interesting about the Ram, is the ratio spread between 3.21 and 3.92 is almost identical to the internal gear ratio spread of the 8 speed ZF. I've done the calculations on Ramfoumz, and at any given road speed, a 3.21 truck in 7th is almost the exact same rpm as a 3.92 truck in...

It'll be nice if more manufacturers can list their duty cycle, but so far I've only found luck on Warn's industrial lineup: It starts off at 21% duty cycle, and goes down to 6% at 9500 lbs. Not the greatest, and hence why I'd like to see winches operate more on the high speed / low line pull...

Very interesting winch, and your observation is bang on - not the quickest line speed, but nice low amperage. I'll definitely be looking more into the Badlands. I pulled the chart for their 12k model: Like you mentioned, it's not quick, but the amps are lower than just about anything I've...

I'm going to work on this over the next few days. I'm collecting as many charts as I can, from as many manufacturers as I can. I will then put them in excel and plot line pull, line speed, amperage, and motor efficiency curves. So far, it looks like performance across the manufacturers are very...

I looked up the HI9000 on their site, but have to say for my use, the performance just doesn't justify the cost and complexity of the setup. Mainly because I want a portable setup, so I'd have to run quick disconnect hydraulics. If I use the stock PS pump, I'll have to factor in the effects on...

Exactly why I passed on a good deal for a new in box 16.5ti @ $1200 Cdn :( It's too heavy for my LX470. I planned on a rear hitch mount, so once I'm all done, with 30' of 0 gauge, I'm at 200 lbs. That's what started this whole study actually - I loved the efficiency of the 16.5ti in the 4000 -...

I agree, most extractions are probably far from max line pull. The best way I can think of is a DC clamp meter on the winch input, then, with the given winch's chart in hand, we'll have a rough idea of where we are (in both speed and line pull). If I get around to experimenting with a 2-speed...

Glad you found the info interesting. I wondered the same thing about the Blazer, and then one look at the gear ratios you'll see why - 33.5:1 !!! http://www.comeupwinch-blazer.com/specifications.php Couldn't believe my eyes when I first saw it. It's geared 4 TIMES taller than an 8274, which...

I don't have a Pentastar, but do have a Hemi 3.21 truck with the same 8 spd ZF. I would recommend MAX 33" tires. My truck came stock with 33s, and while the Hemi pulls 8th no problem, it would downshift on the slightest hill. It also can't go into 4 cyl mode in 8th. This is exactly what I...

There're lots of concerns regarding the 2500's coil spring, most are based on hearsay "nothing but a grocery getter!" Let's not forget armored HMMWVs weight 12,000 lbs and are coil sprung. Many heavy missile trucks use coils. There's nothing inherently weak about a coil spring - I can design one...

For those of us that are more visual, I find this graph basically summarizes what I'm illustrating at a high level: The x-axis is torque, which is linear to a winch's line pull. It starts at freewheel, and ends at stall. For safety, most manufacturers rate their max pull well before actual...

Good points... but again, my method is not intended as a winching bible. I realize there are instances where it won't be practical. What I am proposing, is a solution to save power and wear and tear when conditions DO allow. If rigging up a snatch block is too time consuming, then chances are...

The 3500 would add payload for sure, but in terms of chassis strength and longevity, the 2500 vs 3500 is absolutely equal. They share the same 50ksi fully boxed frame (which for the intended purposes is overbuilt), and the same giant 11.5" AAM rear axle (previously used on the diesel / dually)...

I looked at a few hydro setups on Pirate and Mud, and most agree if you want any form of performance, a separate pump is needed (over stock PS pump). This is especially true for my 100 series, as they're not known for strong pumps. Looking at the Warn 9000 hydro unit...

I'd be highly interested in this as well. I'll look into a clamp meter in my future setup. The only info I found online is from Scott's winch test, and the amperage was surprisingly low: http://expeditionportal.com/tug-of-war-the-ultimate-12v-winch-test/ For the uphill Unimog test, the 8274...

Good to hear it being used! EEs know how to winch? :P Perhaps it's just not talked about as often, I searched all over Pirate, Mud, JK/Wrangler forum, and couldn't find anything specifically. Hence why I made the thread, to see what others have to share.

As I look into more winches, I'm seeing a general pattern - the higher the difference in line speed between max line pull, and partial line pull, the more benefit this method becomes. Following this pattern, I found one winch that would benefit massively, the Come Up Blazer...