z24 alternator replacement/upgrade options.

[datzenmike]

Put an '02 100 amp Alternator on my 710. Made this to connect to the stock harness...

 

[ElliotV]

6 minutes ago, datzenmike said:

Put an '02 100 amp Alternator on my 710. Made this to connect to the stock harness...

 

ok looks like connecting it wont be too terrible

[Stinky]

I tend to disagree....based on what I've heard.  Your alternator is air-cooled and you need the fins....I think.  I'm sure that they can be trimmed some.

[ElliotV]

5 hours ago, Stinky said:

I tend to disagree....based on what I've heard.  Your alternator is air-cooled and you need the fins....I think.  I'm sure that they can be trimmed some.

Every example of a 240sx alternator I can find online doesn't have fins on it 

[datzenmike]

On 5/22/2024 at 11:51 AM, datzenmike said:

Now I see the KA alternator has an internal fan on the rotor so the external fan could be cut off. Didn't know this at the time. The Car KA is 80 or 90 amp. Truck KAs are V belt but only 50/60 amp

 

 

 

The V belt pulley you can cut the fins off.

[Stinky]

On the 240 alternator....I bet if you look inside it, it has something there to move air.

 

[datzenmike]

On 5/22/2024 at 11:51 AM, datzenmike said:

 

 

Now I see the KA alternator has an internal fan on the rotor so the external fan could be cut off. Didn't know this at the time. The Car KA is 80 or 90 amp. Truck KAs are V belt but only 50/60 amp

 

 

 

I have an exploded diagram of the 240 sx alternator. There are fins to the front and the rear on the spinning rotor part. So all internal. If I had known this I would have done a better job.