160 amp alternator?

Li-bah-tee_13x · **Posted:** Mon Mar 09, 2009 2:23 pm

Does anyone know if there's any danger in putting a 160amp alternator in the heep? :lol:

i got one for a good price, and want to run all sorts of goodies...

jamangus · **Posted:** Mon Mar 09, 2009 3:05 pm

Li-bah-tee_13x wrote:

Does anyone know if there's any danger in putting a 160amp alternator in the heep? :lol:

i got one for a good price, and want to run all sorts of goodies...

bigger alt will not help. you want to upgrade your battery instead.

sleeve84028 · **Posted:** Mon Mar 09, 2009 3:44 pm

Wait? The bigger alternator will not help? How so?

The alternator provides current to recharge the battery. If the renegade models came with a 160 amp alternator and the sport/limited units came with a 132 amp alternator than there is a benefit. The OEM made that statement.

gsrtroy · **Posted:** Mon Mar 09, 2009 4:26 pm

it will help, but only if you have a higher demand on the electrical system causing the 132amp alternator from keeping the battery fully charged at running conditions (14.4v). i tested the my alt. (132a) and it was putting out 142amps at 2000rpms at full load.

EDIT: but yes a better battery could help also, i switched to a optima yellow top and it helped a bit.

Jeepjeepster · **Posted:** Mon Mar 09, 2009 7:27 pm

Whether or not a better battery will help depends on what hes wanting to accomplish. If he is wanting to run 10 100watt lights while having the heated seats in, rear defrost, front defrost(A/C is on), fan on high, fog lights on, etc, then a bigger alt would be best.

tjkj2002 · **Posted:** Mon Mar 09, 2009 9:05 pm

If you have the regular 132amp alternator and then add a 160amp one you will not see any gain.Why? Well the alternator on the KJ is totally controlled by the PCM and is programmed with the fact it came with a 132amp alternator.You will need to have the PCM reprogrammed to a Renagade to see the benefit of the 160amp alternator.Same goes with the MeanGreen 202amp alternator.

I have the 132amp alternator,the renny lightbar,2 more accessory lights,a 750watt amp,and a WARN XP9500 winch and have never had any issues.I also upgraded to the Optima YellowTop battery.No dimming of the lights at night when cranking my stereo

.

Prospect62 · **Posted:** Mon Mar 09, 2009 9:07 pm

You guys keep saying 132 amp alternator...my build sheet says mine came with a 136-amp alternator...

tjkj2002 · **Posted:** Mon Mar 09, 2009 9:09 pm

Prospect62 wrote:

You guys keep saying 132 amp alternator...my build sheet says mine came with a 136-amp alternator...

Opps I missed that :twisted:

,yes the KJ comes with the 136amp one,been a very long day :evil:

.

DryBones · **Posted:** Mon Mar 09, 2009 9:35 pm

I voted for Magellan but he is in a distant 3rd right now.

gsrtroy · **Posted:** Mon Mar 09, 2009 10:07 pm

ya 136amp, but i think its enough my amp puts out 2000rms and no dimming here also

BjBnet · **Posted:** Mon Mar 09, 2009 11:26 pm

gsrtroy wrote:

ya 136amp, but i think its enough my amp puts out 2000rms and no dimming here also

OT where did you guys mount your amps?

gsrtroy · **Posted:** Tue Mar 10, 2009 12:16 am

i actually have it right beside my box, ill get a picture up sometime.

RED_KJ_666 · **Posted:** Tue Mar 10, 2009 12:19 am

BjBnet wrote:

gsrtroy wrote:

ya 136amp, but i think its enough my amp puts out 2000rms and no dimming here also

OT where did you guys mount your amps?

Under the Back seat is a decent spot but not on the floor, I removed my back seats, and put 2 Kicker 300.2 Amps under there. I did have dimming issues, Until I got Capacitors.

Li-bah-tee_13x · **Posted:** Tue Mar 10, 2009 9:43 am

Jeepjeepster wrote:

Whether or not a better battery will help depends on what hes wanting to accomplish. If he is wanting to run 10 100watt lights while having the heated seats in, rear defrost, front defrost(A/C is on), fan on high, fog lights on, etc, then a bigger alt would be best.

...you forgot the mini fridge i wanted to keep my potato salad cool....haha.
yeah i put it in last night, and she runs fine. I'm gonna upgrade to a better battery so i can run all my lights/radio/fridge/whatever else i can stuff in the back. :lol:

thanks for all the input,guys. Who can reprogram my PCM for me?

tjkj2002 · **Posted:** Tue Mar 10, 2009 9:58 am

Li-bah-tee_13x wrote:

Jeepjeepster wrote:

Whether or not a better battery will help depends on what hes wanting to accomplish. If he is wanting to run 10 100watt lights while having the heated seats in, rear defrost, front defrost(A/C is on), fan on high, fog lights on, etc, then a bigger alt would be best.

...you forgot the mini fridge i wanted to keep my potato salad cool....haha.
yeah i put it in last night, and she runs fine. I'm gonna upgrade to a better battery so i can run all my lights/radio/fridge/whatever else i can stuff in the back. :lol:

thanks for all the input,guys. Who can reprogram my PCM for me?

Dealership only,good luck most will have no clue what you are trying to do and have the no how with the DRBIII or StarScan.

Li-bah-tee_13x · **Posted:** Tue Mar 10, 2009 10:57 am

...so i assume the DRBIII is kinda like the GDS i use on foreign cars? All systems diag. and testing computer.? Yeah the local jeep techs are meatheads... :roll:

Ms5490renegade · **Posted:** Tue Mar 10, 2009 11:35 am

behind the rear seat, drivers side.

dejesu · **Joined:** Fri Dec 23, 2011 7:47 pm **Posts:** 96

Ms5490renegade wrote:

behind the rear seat, drivers side.

ditch that cap, it's practically useless and if anything it's hurting your system. do the big 3 upgrade (if you don't know what that is, google it there's a bunch of results). the big 3 upgrade will upgrade your electrical ~30% and is well worth it.

i'm pushing a 2000 watt amp at 1 ohm and my voltage doesn't drop below 12.4... when idling i'm at about 14.3

160 amp alternator?

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