[Roadsters] Dropping Oil Pressure at idle

[Urias McCullough]

On Wed, Jul 28, 2010 at 12:31 PM, Hoon Kim <hoonhkim at gmail.com> wrote:
> I guess the real problem is that my engine starts to stall now with the
> pressure dropping. I'm not as concerned about it dropping but what the
> engine is doing when it drops. This was not a problem before the alternator
> swap.
>
> I think it may have to do with the GM swap and the alternator not kicking in
> at idle. I'll have to test it out.

Have you measured the voltage output of the alternator at idle yet?
Preferably you should be getting ~12-14v I would guess... if less
perhaps you're not getting a good spark at idle.