From:             Self 
To:               Offroad@off-road.com
Subject:          Warn 8274 revisited
Copies to:        LandCruisers@tlca.org, 80_series@palladium.corp.sgi.com
Send reply to:    w.j.markerink@a1.nl
Date sent:        Wed, 19 Mar 1997 18:03:28

Mmm....I just received some spec's on the Warn 8274 by fax.
First, it can not be run in reverse, cable flipped, as its brake 
won't work (like I thought). Bummer.
Second, my idea of how this thing is ment to be mounted was way off, 
it has its feet on the side, not on the bottom.
That makes it quite difficult to flip it in the horizontal plane, 
although even horizontal mounting itself would be difficult with this TJM 
bumper, as it uses a feet-forward direct mounting orientation, 
without brackets and stuff. 

Yet an even more staggering detail can be found in the drum speed
tables for the 8274, where they made a distinction between 12V and
24V systems.

Performance on first layer of cable:

12V version:
kg      speed (m/min)  amp
   0     13.5          62
 500      9.0          151
1000      4.4          241
2000      1.9          394
3000      0.9          522
3600      0.4          585

24V version;
kg      speed          amp
   0     19.8           24
 500      8.2           66
1000      6.7           97
2000      4.2          165
3000      3.2          233
3600      2.4          273


A staggering factor 6 in speed gain under full load, at less battery 
drain....

What on earth possessed Toyota to skip the true 24V system on the
80-series cold spec diesels?....major bummer....8-((











Date sent:        Thu, 18 Mar 1999 12:47:45 -0800
To:               dtlc@helios.net
From:             Rob Mullen 
Subject:          Re: [DTLC] 24V winch
Send reply to:    dtlc@helios.net

At 08:51 PM 3/22/99 -0400, John wrote:
>Anyone running a 24V winch?? 

Yup--12V 8274 that's been converted to 24V.

>ARB solenoid 

Was told by ARB that 12V solenoids run just fine at 12V.  They do--for
about a year.  Now I run a 24V MAC solenoid.  BTW, ARB's now telling people
to run the solenoids off one battery...  ARRGH!  At least they don't draw
much current.

>I am wondering if I should keep the 12V electrical system or just toss the 12V 
>winch motor & install a 24V one.

Ditch the half-assed 12V motor and step up to real power.  You need to
replace the motor (~CA$375 or so for a Warn one--I haven't found an
aftermarket 24V one yet) and two of the solenoids (CA$35ea for Warn ones,
but they're available cheaper aftermarket) The new solenoids are still 12V
but they're isolated so you can do them in series.  It works great.  First
time I spooled the cable on, I damn near ran myself over--the line speed is
so fast.

 :)


____________________________________________________________________
Rob Mullen RAMullen@wimsey.com       North Vancouver, B.C., Canada  |    
TLC FAQ & TT Story Editor            TLCA #3036, Coastal Cruisers   |
'80 Toyota BJ40/2 Land Cruiser       Why walk?...When you can CRAWL!|











[Note WJ: even with the later high-efficiency 12v motor, 4.6hp, 
the 8274 is still slower than the old 2.5hp 24v motor!: ]


http://www.warn.com/truck/winches/src/M8274-50.shtml
xxxxxxxxxxxxxx

12V DC PERFORMANCE SPECS

Line Pull	Line Speed	Motor Current	Current Pull by layer
Lbs.(Kgs.) 	FT./min(M/min.) 		layer/Lbs(Kgs.)

0 		73.4 (22.40) 	 55 amps 	1/8000(3629)
2000(910) 	22    (6.71) 	190 amps 	2/7460(3384)
4000(1810) 	12    (3.66) 	275 amps 	3/6980(3166)
6000(2720) 	 9.5  (2.90) 	350 amps 	4/6620(3003)
8000(3630) 	 6.1  (1.86) 	450 amps 	5/6290(2853)




24V DC PERFORMANCE SPECS

Line Pull	Line Speed	Motor Current	Current Pull by layer
Lbs.(Kgs.) 	FT./min(M/min.) 		layer/Lbs(Kgs.)

0 		65  (19.80) 	 24 amps 	1/8000(3629)
2000(910) 	23   (7.01) 	 96 amps 	2/7460(3384)
4000(1810) 	17   (5.18) 	149 amps 	3/6980(3168)
6000(2720) 	13   (3.96) 	203 amps 	4/6620(3005)
8000(3630) 	 7.9 (2.41) 	273 amps 	5/6290(2855)

xxxxxxxxxxxxxxx

Only other Warn winches that can be compared in 12 and 24v, with same results:

http://www.warn.com/truck/winches/src/M1200.shtml

http://www.warn.com/truck/winches/src/M15000.shtml

If you have any question, remark, comment, want to share some philosophy or just want to express your opinion about these pages, feel free to send email to: w.j.markerink @ a1.nl