igo4bmx

Ok so I got a new motor built (d16y8)

I bought a new high output alternator from http://www.4alterstart.com which spits out a max 135 amps
battery was what i had for a while.

I have both an autometer voltmeter, and a voltmeter build into my greddy turbo timer...

when cruising around, my car reads at least 14.0 volts (up to 14.4)
when sitting at a light (aka idle) it dips down to about 12.5 volts and sometimes even lower!! (11.8).

I went to an auto shop to test the battery which they said was fine...
they saw the load from the alternator as 60 amps at idle, and they thought that was great.


they had no idea why my voltage dropped...
anything i could check?

igo4bmx

bump for a strange problem

Sean Juan

mine varies too, yet everything is fine. Not sure, why but it shouldn't really be a problem.

igo4bmx

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by GRIP KING &raquo;</TD></TR><TR><TD CLASS="quote">mine varies too, yet everything is fine. Not sure, why but it shouldn't really be a problem.</TD></TR></TABLE>

well i worry since, this it wasn't like this before...
plus i have a system- the reason why i got a high output alternator

Sean Juan

Mine has always done the same, on the stock z6 motor and now on the b18c motor. I'm pretty sure it's common, or it might be because of where you wired up the volt gauge to.

igo4bmx

voltage gauges weren't changed since the new motor....