Large diameter, high output stator

tphoyt

Commander
Joined
Jun 10, 2010
Messages
2,259
Not really my wheel house but is it possible to use one that fits you size needs rewound for more output?
 

Scott Danforth

Grumpy Vintage Moderator still playing with boats
Staff member
Joined
Jul 23, 2011
Messages
52,893
Take a good look at a stator.-----Consider making one to suit your needs.----Nothing but magnet wire wound on some metal bits.
thought of that, however I am already making 95% of the parts for the car. would be nice to find something that is on the shelf.
 

Pmt133

Lieutenant Commander
Joined
Jan 6, 2022
Messages
1,738
Yamaha 300 HPDI is also a 50 amp stator

They're also bigger and the center may be removable.
Screenshot_20260804_194753_eBay.jpg
 

Mc Tool

Lieutenant Commander
Joined
Aug 7, 2024
Messages
1,721
You do realise that the chances of such an experimental application of said electrical apparatus in an unconventional location going wrong is directly proportional to the difficulty of gaining access 😁😁 Dont get me wrong ...this is right up my alley ( not my root canal 😂) but while it appeals to me I cant help but wondering how long it will take you to get sick of telling anyone who looks under the bonnet (hood ) of your investment of blood sweat and tears and asks " where's the mother duckin alternator Scott ?" that its under the flywheel , and then the ensuing barrage of inquisition as to why its under the flywheel ........ when a gilmer belt kit looks pretty cool too.
This triple disc clutch intrigues me ...Im fitting a 3.9l Rover V8 to mr Capri and part way thru the build I got my right leg chopped off leaving me without enough feet to drive a manual (stick ) transmission ...but I been thinking about fitting a clutch lever to the gear lever like a motorbike is on the handle bar, but lever operating pressure is a worry . I have an anular clutch throwout bearing and Im thinking that a multiplate clutch might be the answer being as it would require less pressure plate to clamp the stack . Id be keen to hear your thoughts on this theory 🙂🙂.
 

Scott Danforth

Grumpy Vintage Moderator still playing with boats
Staff member
Joined
Jul 23, 2011
Messages
52,893
You do realise that the chances of such an experimental application ...
because I am stuffing 900# in a 1# box and the alternator and electric waterpump want to share the same space.

OK, technically, I am stuffing the driveline of a typical 106" wheelbase vehicle that is usually in a 170" long 3800# car, into a vehicle that currently has a 78" wheelbase that will be stretched to 88-90" and is only 131.5" long while keeping the weight under 2200#

and yes, the transmission would need to be removed to access.

no different than starters on many of todays cars.

however its usually not the stator coils that go bad, its the rectifier assembly (needs a really big heatsink)
This triple disc clutch intrigues me ......our thoughts on this theory 🙂🙂.
the force required to release the clutch on a button clutch is higher than a typical street clutch.

so unless you have Popeye forearms. think outside the box (here is what I came up with about 15 years ago when I injured my left knee)

use a push button on the shifter with a hydraulic throw-out bearing, a 3-way 2-position valve and a flow control on the exit side. easy peasy. instant clutch in, controlled release (flow control).

tie into the power steering pump for pressure and return.



1785933062693.png

can do a 1-button or two button control.

with two buttons, you need a second valve, however you can have two rates of clutch release.

1785933784557.png

a HTOB needs between 900 and 1300 psi to operate

power steering pumps in fords are 900 psi, and in GM trucks (and boats) are ~ 1300 psi
 

Scott Danforth

Grumpy Vintage Moderator still playing with boats
Staff member
Joined
Jul 23, 2011
Messages
52,893
Yamaha 300 HPDI is also a 50 amp stator

They're also bigger and the center may be removable.
great suggestion

based on spelunking around Ebay, yes, the cover coil is removable.

the main stator has about a 4-3/4" ID by counting the lines on the interlocking floor (we have the same in the lab at work)

this should work.


1785934772976.png

and nearly a 8.0-8.5" OD based on this.

1785935029920.png

so next is to get my hands on one .
 

Pmt133

Lieutenant Commander
Joined
Jan 6, 2022
Messages
1,738
Saw the yamaha by mistake but it looked about right so figured it may be worth a shot lol. Hopefully it works out.

What I learned was that merc has been using belt driven alternators on outboards way longer than I originally thought.
 
Top