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Stine
03-19-2003, 12:09 PM
Looking to install a Computer system in the car...
What I want to know can I hook up a cap to the computer to supply more power to the inverter?

yeah I know most of you are going to say WTF you want a computer in a car for??? Well its just a project nothing more nothing less..


Thanks for the input people!
bol
03-19-2003, 12:12 PM
A cap won't do anything for that application.
Stine
03-19-2003, 12:17 PM
ALright so how would I provide more power to the inverter?

Any other ways then gettin a new alternator?
bol
03-19-2003, 12:21 PM
There is no quick solution to providing more power to the inverter other than than basics: better alternator and better battery.


caps only provide power for a short time(seconds) when there is a need for high amperage
dogstar
03-19-2003, 12:24 PM
you need a decent alternator, about 65 amps i belive, and one of those inverters they sell at canadian tire, get about 250-300 watts.

computer in a car is a great idea, you can play games like all the PS2 installs, and dvds, and music, and have a navigation system, among other things.
been lookin at that project for a while now
bol
03-19-2003, 12:30 PM
65amps?
haha

most stock car alternators are around 80 amps
~60amps are used by the car in normal operation with every accessory running, and there is a 20amp provision generally for future accessories(stereo, etc)

20amps aint much to work with
Stine
03-19-2003, 01:41 PM
so only option is to get a better alternator?
I drive a 92 Geo Storm and this is the car I wuld like to use for the prject, Can any one reccomend a good place to get a alternator and have it installed.

thanks for the input
bol
03-19-2003, 01:58 PM
have you started? is power posing a problem or are you anticipating it to be a problem
RX-7_TWINTURBO
03-19-2003, 02:02 PM
http://www.apcc.com
try one of these..
Stine
03-19-2003, 02:35 PM
Originally posted by bol
have you started? is power posing a problem or are you anticipating it to be a problem

I had it installed on a test run. Started u8p fine for about 10 min then inverter would shut down because of low power from the battery.

Also the alernator was too hot to touch. :dunno:

so I was guessing that the alternaror was workin too hard to power the battery...

Computer Specs..

Durron 800 MHZ
128 MB SDRAM
4 MEG VID card
keypad
PsOne LCD


sound is hook into the deck.
ninspeed
03-19-2003, 08:28 PM
Hook up a second alternator, and mabey two batterys.. but thats a 3cyl right?
RX-7_TWINTURBO
03-19-2003, 09:34 PM
Use a battery backup from www.apcc.com
or buy a 450W inverter $150 from canadian tire i believe
Stine
03-19-2003, 09:44 PM
Originally posted by RX-7_TWINTURBO
Use a battery backup from www.apcc.com
or buy a 450W inverter $150 from canadian tire i believe

already have a 300 watt inverter and it shuts down due to low battery what is a 450 watt inverter going to do for me?
ACS-e36
03-19-2003, 11:47 PM
get somekinda amp forit.... just a small one
sml
03-20-2003, 02:43 PM
You don't need a cap if you want to install a computer in your car... it's freaking only 300-400W of power and it's not even using all of it, so it's probably realistically around 200W... Most aftermarket decks are about 200W and you don't see people hooking up moster caps to stabilize their system!!! Plus computer's run on pretty much constant current unlike higher end stereo ampifiers.
sml
03-20-2003, 02:45 PM
Originally posted by Stine


already have a 300 watt inverter and it shuts down due to low battery what is a 450 watt inverter going to do for me?

It depends on your computer case power supply. If it's rated at 300W, then a freakin 300W inverter ain't gonna do you any good... In electronics, always account for 50-100% more juice than you really need.