rpeAMP

I just purchased a 150A alternator from Mr. Alternator for my 4Runner. So far I am very pleased with it. I can already tell that it was worth the $204 because the lights don't dim when I try to roll the windows down, and the voltage meter doesn't move much.

I noticed when installing the alternator that there's an 80A fusible link labeled "ALT" in the fuse box. I pulled the box and saw that this wire goes directly to the positive terminal of the battery.

Should I upgrade this link to something higher to get the full potential from the alternator? Or should I not worry about it, considering that all of my auxiliary stuff bypasses that fusebox, and therefore the 80A link?

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Preston Edwards

1992 4Runner SR5 V6 4WD (5 Spd.)
246,000 miles & counting
2" Downey coils, 32x11.5x15 BFG A/Ts, Rockcrawler Series 51 wheels, Magnaflow exhaust, Yakima roof rack, ARB bull bar, SAW Torsion bars, (4) PIAA 520s, Cobra 18 WX ST II CB w/ Firestik antenna, hp iPaq GPS

2007 Toyota Tacoma TRD Sport 4WD (5 Spd. Auto)
400 miles & counting

Ganoid

I would run an additional charge wire from the back of the alt to the battery. Your stock wire will probably melt if you where to put 150 amps through the 8 or 10 Ga wire. I ran a length of 4ga from my alt to my battery and placed a circuit breaker at the end closest to the battery.

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1990 Xcab beast of burden
3.0 Rebuild/Precision balanced w/OS valves
Custom ported/welded Intake manifolds
Downey headers, Jacobs Ign
4" Trail Gear SAS + rear Kit
R151 + Dual cases (2.28+4.7)
5.29's,Tru Trac/Lockright on 35 BFG's
140A GM CS144 alt/Hyd assist steering
DOA Racing = $1200 lesson in who NOT to deal with

4Crawler

When I installed my 160A alternator, I wired it right to the dual batteries then ran a wire from there up to the stock fuse box. That way all the original stuff is left alone and the dual batteries can power the winch, starter and other heavy loads.

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1985 Toyota 4Runner SR-5, 22REC engine, dual t-cases, 4.88 gears, dual ARBs, 33x10.50 BFGs.
r.c.brown@ieee.org
TruckEditor@tlca.org
Project: 4Crawler
4Crawler OffRoad
Gettin'Off 4WD Club

Just Learning

what made you go with mr alternator?, has any-one ever ran a mean green??