| ausmini https://www.ausmini.com/forums/ |
|
| alternator help https://www.ausmini.com/forums/viewtopic.php?f=5&t=71679 |
Page 1 of 1 |
| Author: | craig goss [ Tue Jul 05, 2011 12:05 am ] |
| Post subject: | alternator help |
Hi guys and girls, Im looking at trying to upgrade my alternator as i have updated the sound system. Im not too sure what amperage i should be looking at. At the moment i have a 45amp from a charade a feel it wont cope with with 3 amplifiers and various other electrical instruments. I was looking into using the a landcruiser alternator(100amps and slightly larger than the charade) then running the charade underneath it. I have a remote oil filter so room is not a major priority. Any advice, points, or anything if else that could help me would be muchly appreciated??????? cheers |
|
| Author: | i got a mini [ Tue Jul 05, 2011 6:34 am ] |
| Post subject: | |
there is a guy on hear who makes alternators have a chat to him i 4get his name but he will write on her no doubt |
|
| Author: | 1018cc [ Tue Jul 05, 2011 8:19 am ] |
| Post subject: | |
The guy is Tony ('convertible mini' is his username). He should be able to sort you out. |
|
| Author: | Harley [ Tue Jul 05, 2011 8:37 am ] |
| Post subject: | |
You don't need two alternators, thats just silly. The 100 amp landcruiser one will be more than sufficient. I have a stock 65 amp alternator, and the car runs EFI, 4 spotlamps (total 360 watts with high beams) and at 1000 wrms stereo. Battery is a tiny little bugger from a charade or something and it runs fine. Reason is cause you don't run all your high power stuff together. At most I only ever have 4 lights on, and the stereo only pulls full power at max volume up around 115db or above. |
|
| Author: | NG [ Tue Jul 05, 2011 6:26 pm ] |
| Post subject: | |
Tony is yah man! He does a great bosh one from memory! |
|
| Author: | craig goss [ Wed Jul 06, 2011 11:44 am ] |
| Post subject: | |
Thanks guys, The reason i asked is because the three amps are 5700 watts each, i have numerous gauges, and other rubsih that probably shouldnt be on the car, as well as a alarm. So i know that there will be a fair bit of power being drained. |
|
| Author: | meeni [ Fri Jul 08, 2011 9:21 pm ] |
| Post subject: | |
id be more worried about blowing the car apart with that sort of amp power.. |
|
| Author: | DTrain [ Sat Jul 09, 2011 10:06 am ] |
| Post subject: | |
The 5700w would be peak output, rms numbers are what u are interested in as you wouldnt be pumping them 24/7. Either way do a seach there are boys on here who have found 65-100amp alternators that fit with minor bracket modifications. Get a battery with at least 500cca and a ~75amp alternator (single) and youll be fine |
|
| Author: | Irish Yobbo [ Sun Jul 10, 2011 1:33 pm ] |
| Post subject: | |
Before I upgraded my alternator, I was running my stereo, halogen headlights and driving lights on the tired old stock alternator. You'd be looking at a pretty serious sound system if 100 amps doesn't do the trick. Those 5700 watt amps will be measured as peak power - check the specs for RMS power, which is the actual DC power used to run the amp. If you can't find the RMS value, look at the amps fuse. The fuse amperage will be above the current that the amp uses. For example, if you have a 30 amp fuse, the amp cannot use more than 30 amps - 30amps x 12volts = 360 watts. Quote: id be more worried about blowing the car apart with that sort of amp power..
It should be alright with the stock components, since the voltage determines the power - provide, say, a headlight with 12V, even if there is 100 amps on tap, the resistance of the lights will limit the current to about 5-6 amps. Make sure you use the right gauge of wire with the new stuff you're putting in - go a bigger gauge if you can. Too small, and you can melt the wires You could say that a lot of the stock wiring is too small, but it's safe - just not efficient. You might want to check that all your stock wiring is in good order though - perhaps a second earth strap from the engine too. |
|
| Author: | Irish Yobbo [ Sun Jul 10, 2011 1:36 pm ] |
| Post subject: | |
meeni wrote: id be more worried about blowing the car apart with that sort of amp power..
Ah! The power of the amplifiers, not the amps needed to power the amplifers! Yeah. |
|
| Author: | DTrain [ Sun Jul 10, 2011 5:19 pm ] |
| Post subject: | |
is there something wrong with this thread or is it just me? to me it shows up as the last two posts are by irish yobbo but i think the second last one is from meeni? |
|
| Author: | craig goss [ Sun Jul 10, 2011 11:48 pm ] |
| Post subject: | |
thanks guys, and yea the amps are 5700watts peak power. I think its time to go for a drive down to my local wreckers and have a look around..... cheers |
|
| Page 1 of 1 | All times are UTC + 10 hours |
| Powered by phpBB® Forum Software © phpBB Group http://www.phpbb.com/ |
|