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Upgrades and Aftermarket - 99 & up 7.3L Engine Upgrading or adding OEM or aftermarket equipment to your 1999-Up Super Duty or Excursion with 7.3L Power Stroke diesel engine. Please confine discussion of topics in this forum to those items that are specific to the 7.3L Power Stroke engine.

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Old 02-07-2007, 08:09 PM   #1 (permalink)
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Alternator upgrade

Ok so I found out my 02 Excursion has a 110amp Alternator. Whats the safest you would upgrade without changing any wiring 140 or 160 amp?
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2002 Ford Excursion, 7.3l, AFE stage 2 intake, Banks exhaust,TN Turbo .84,EBPV delete/non EBPV Ped, ITP Reg fuel system, DP Tuner 60tow,80 econo. Lifted 6 inches with BFG 35 mud terrain with 4.11 gearing. Full gauges, CCV mod,Coolent/tranny filters, Overboost mod,Spearco 7.3 intercooler, dieselsite boots all around, Terminator dual pumps, Dual Optima yellow tops,Stage 5 ATS tranny,350 hp maybe 650 ft lbs.
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Old 02-07-2007, 08:25 PM   #2 (permalink)
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Re: Alternator upgrade

I upgraded my alternator on my old truck, and the all the lights in the dash/headlights/radio, etc, etc would 'pulse' for lack of a better word, because of the extra voltage. I got so annoyed that I took it off. I was tired of being in the disco

hope this helps
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Old 02-07-2007, 08:33 PM   #3 (permalink)
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Re: Alternator upgrade

so probably 140 amps would be ok and still recharge batteries for winching. 140 would only be 30 amps more than factory. Mmmm what to do
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2002 Ford Excursion, 7.3l, AFE stage 2 intake, Banks exhaust,TN Turbo .84,EBPV delete/non EBPV Ped, ITP Reg fuel system, DP Tuner 60tow,80 econo. Lifted 6 inches with BFG 35 mud terrain with 4.11 gearing. Full gauges, CCV mod,Coolent/tranny filters, Overboost mod,Spearco 7.3 intercooler, dieselsite boots all around, Terminator dual pumps, Dual Optima yellow tops,Stage 5 ATS tranny,350 hp maybe 650 ft lbs.
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Old 02-07-2007, 11:02 PM   #4 (permalink)
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Re: Alternator upgrade

170 amp from www.dbelectrical.com is a drop in. Call them as they don't always have them listed on their web site.
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2002 F-350 SRW Lariat,4X4, PSD with too many goodies to list. 182k and a very strong 7.3. SOLD
2008 F-250, SC Lariat, 4X4,Shortbed, Pueblo Gold/black, V-10, 4.10, auto, Delivered on 9/7/07, great looking rig. South Texas bumpers front/rear, Air Raid Intake System, Diablosport Predator, Magnaflow, Husky's, JJ's, Ford alarm/remote start, Marathon seat covers, Sirius, PIAA, Access cover, Weatherguard tool box, Rhino liner, Michelins, Duraflap mud flaps, Escort 9500i, MagHytec rear dif cover.
2007 Lincoln LT (wifer's grocery getter),Superchip,Magnaflow duels, K&N dropin, Leer Browning Special
1996 Ford Bronco EB; almost stock
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Old 02-07-2007, 11:10 PM   #5 (permalink)
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Re: Alternator upgrade

HAd any problems with yours such as surging,spikes or other.
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2002 Ford Excursion, 7.3l, AFE stage 2 intake, Banks exhaust,TN Turbo .84,EBPV delete/non EBPV Ped, ITP Reg fuel system, DP Tuner 60tow,80 econo. Lifted 6 inches with BFG 35 mud terrain with 4.11 gearing. Full gauges, CCV mod,Coolent/tranny filters, Overboost mod,Spearco 7.3 intercooler, dieselsite boots all around, Terminator dual pumps, Dual Optima yellow tops,Stage 5 ATS tranny,350 hp maybe 650 ft lbs.
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Old 02-07-2007, 11:12 PM   #6 (permalink)
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Re: Alternator upgrade

Wrangler NW 200amp.....dropped in with a slight mod to the truck and works flawlessly!!!
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Old 02-07-2007, 11:15 PM   #7 (permalink)
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Re: Alternator upgrade

Nope, it's been a year and no problems...also less than 1/2 price of the Wrangler 200 and no wiring upgrades necessary.
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2002 F-350 SRW Lariat,4X4, PSD with too many goodies to list. 182k and a very strong 7.3. SOLD
2008 F-250, SC Lariat, 4X4,Shortbed, Pueblo Gold/black, V-10, 4.10, auto, Delivered on 9/7/07, great looking rig. South Texas bumpers front/rear, Air Raid Intake System, Diablosport Predator, Magnaflow, Husky's, JJ's, Ford alarm/remote start, Marathon seat covers, Sirius, PIAA, Access cover, Weatherguard tool box, Rhino liner, Michelins, Duraflap mud flaps, Escort 9500i, MagHytec rear dif cover.
2007 Lincoln LT (wifer's grocery getter),Superchip,Magnaflow duels, K&N dropin, Leer Browning Special
1996 Ford Bronco EB; almost stock
2007 Kubota 900 RTV diesel with goodies.
pappy's truck
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Old 02-07-2007, 11:29 PM   #8 (permalink)
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Re: Alternator upgrade

went with a 160 amp upgrade. That should be ok with stock wiring right?
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2002 Ford Excursion, 7.3l, AFE stage 2 intake, Banks exhaust,TN Turbo .84,EBPV delete/non EBPV Ped, ITP Reg fuel system, DP Tuner 60tow,80 econo. Lifted 6 inches with BFG 35 mud terrain with 4.11 gearing. Full gauges, CCV mod,Coolent/tranny filters, Overboost mod,Spearco 7.3 intercooler, dieselsite boots all around, Terminator dual pumps, Dual Optima yellow tops,Stage 5 ATS tranny,350 hp maybe 650 ft lbs.
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Old 02-08-2007, 01:27 AM   #9 (permalink)
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Re: Alternator upgrade

Went with a Schuck's/Krager 239.00 lifetime new alternator. Umm...just went through 3 in 2 years. Two of them were within 1 months. lol.
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