No worries. I learned some new things today about Datsun alternators

If you need big amps, Bert's idea of using Patrol/200SX 90A is a good one. But then again the Falcon EA 85A is available cheap

Haha OK so step 1: keep alternator

Step 2: blush

Let's make it even simpler

In your photo is a 50A alternator -- suitable for EFI

Quote:

Mitsubishi A2T23477 IC REG

IC REG means it has an internal regulator

I just checked ... Nissan used the 50A LR150 on the EFI A14 Sunny (see Sunny GX-E: Alternator

In Australia, some 1980s A12/A14/A15 came with 50A already ... maybe you already have a 50A alternator with your engine

To tell whether your have 35A or 50A, measure the alternator diameter
* 35A about 114mm diameter
* 50/60A about 129mm diameter

35A is definitely not enough for EFI -- it's only enough for ignition, headlights, heater fan and low-power stereo. If you plan on running a big-watt audio system, you'll want to get an 85A or 90A alternator

Thanks DD that looks very straight forward.

Thanks for keeping it simple for me haha

The simplest swap would be the stock A12 LT-135 for the LR-160

* LR-160 was used on Nissan EFI cars
* Bolt-on to late A engines. No mods needed
* No wiring changes needed
* No external VR needed

Apparently common on Subaru Leone/Brumby
http://www.autoelectricsdirect.com.au ... ?_a=product&product_id=98

See Hitachi LR Alternator

Yes, all Morris Minor has a VR, but it's likely not compatible with an alternator

If using a stock late A12/A14/A15 alternator, wire in the Sunny VR or Datsun 1200 VR. Better yet, choose an internally-regulated alternator for simpler wiring

I don't even know if I have a voltage regulator (pardon my ignorance)

the Voltage Regulator matches the alternator that you are using ... so if you swap an internally-regulated VR, discard your existing VR

Thanks for all the info guys! with the wiring mods this is all for a morris minor. I'm not sure what role the voltage reg is used for in my setup? I'll ask the guys