Anybody put a bigger alternator on their 84 Westy?

[Krumby]

Aloha
I have a 84 westy with a 1.9 motor with a aux battery hooked up to a go westy isolator The newer one. I was thinking of maybe of getting a bigger alternator to charge the aux battery maybe a little faster when driving. I have a powered cooler and would like a faster way to keep the battery topped off. I have a deep cycle gel battery that is pretty powerful. Just looking for options before i go solar.
Leads on where to get a bigger alternator?
Mahalo for the help
_________________
84 Westy “Betty”
71 bus gone but not forgotten
2015 Harley dyna

[CansoJim]

Hi,

I got mine at quality power. Had it for several years now. No issues. You will need to upgrade your wiring.

https://www.qualitypowerauto.com/item_447/VW-Vanagon.htm

Hope this is helpful.

Jim.
_________________
89 Canadian PreRunner Westy GL JOVH 2.3 Auto w/ Peloquin TBD

[Krumby]

What wiring what would I have to change ?
Mahalo
David
_________________
84 Westy “Betty”
71 bus gone but not forgotten
2015 Harley dyna

[mikemtnbike]

Are you using the gowesty relay and your own system or the whole gowesty charging kit?

If you're using the whole kit, when I switched to an automatic control relay and heavier gauge wiring, I gained about .5 volts of charging power. That's a lot relatively and probably a better investment than a bigger alternator. I'm far from an electronics wizard, just my opinion.
_________________
1991 Vanagon GL 2.1 AT Westfauxlia. "Frankie" Totaled https://www.thesamba.com/vw/forum/viewtopic.php?t=764510&highlight=carnage
1995 Eurovan Camper "Marzivan"
2020 GTI SE manual

[Squidfish]

I am happy with the 28mm internal adjustable voltage regulator I put in recently. I am charging at 14.2 volts now. Less than $40 shipped and 5 minutes to put in.

https://www.prancingmoose.com/AdjustableVoltage.html#vw

Check and clean/replace grounds first and consider replacing your alternator cables; there is a lot of resistance in 30+ year cables no doubt.
_________________
1985.5 - Vanagon Westfalia Weekender Wolfsburg Edition - LH8U - "Penny"
- 2.6i 5-Cylinder 10v (2004)

[CansoJim]

Hi,

It’s the wire from the starter to the alternator. GoWesty sells an alternator harness upgrade kit. As usual, GoWesty supples lots of information:

https://www.gowesty.com/product/-/23762/alternator-wiring-harness-upgrade-kit-?v=

Jim.
_________________
89 Canadian PreRunner Westy GL JOVH 2.3 Auto w/ Peloquin TBD

[Steve M.]

[Krumby]

I have the go westy alt harness already installed put it in a while ago. I’m just looking for a way to maybe charge my six battery faster. I live on a small island so distant driving is not a way to charge.
Mahalo
David
_________________
84 Westy “Betty”
71 bus gone but not forgotten
2015 Harley dyna

[CansoJim]

Hi,

I’m using an alternator to battery charger. A newer option is a battery to battery charger. Here are some links to popular options:

https://www.renogy.com/12v-dc-to-dc-on-board-battery-charger/

https://www.sterling-power-usa.com/

https://redarcelectronics.com/

Jim.
_________________
89 Canadian PreRunner Westy GL JOVH 2.3 Auto w/ Peloquin TBD

[Krumby]

I like that idea of the dc to dc charger I may try that
Mahalo you guys always come through when I need something.
_________________
84 Westy “Betty”
71 bus gone but not forgotten
2015 Harley dyna

[Krumby]

I like that idea of the dc to dc charger I may try that
Mahalo you guys always come through when I need something.
_________________
84 Westy “Betty”
71 bus gone but not forgotten
2015 Harley dyna

[Krumby]

I like that idea of the dc to dc charger I may try that
Mahalo you guys always come through when I need something.
_________________
84 Westy “Betty”
71 bus gone but not forgotten
2015 Harley dyna