Would fitting a slightly larger pulley on the alternator increase it’s output at idle? Also I’m thinking of replacing the alternator I have fitted to my TR4A. Could you post a link or part number for the alternator? Also a link/part number for the alternator wiring connector? Thanks!
I've just recently fitted a 1988 Mitsubishi Mighty Max alternator to my 1973 TR6 because the Lucas one crapped out. I have all the bits to rebuild the Lucas unit, but honestly i'm not sure I want to put it back on given that the replacement works so much better, is stronger, smaller, and lighter.
Yeah, chain parts store electrical stuff is pretty "iffy" nowadays. If you want a 10si that won't let you down, get a Powermaster or Tuff Stuff alternator. You can get them in black powder coat and they look great in there - almost unnoticeable. Or get show-quality chrome if you are an extrovert.
My guess is the Japanese quality will last. Do the alternator characteristics give you output at x-RPM of the alternator itself. Do some math, maybe, and see, like Jim mentions below, if you can change the RPM of the alternator to bump up output voltage. My guess is it will self-clip at some max output so as long as you don't exceed the rating, in max RPM of the unit (probably pretty high...maybe 10,000RPM), you should be okay. But, as always, great job!
Yeah I should have filmed it, but we did do some math. Basically a 2:1 drive right now. According to the RPM/output graph that came with the alternator we are right on the edge. A smaller alt pulley would definitely be helpful. Just not sure how small they come?
Either smaller driven or larger driving pulley would help the engine idle alternator speed. A quick check of engine redline and corresponding alternator speed is in order to make sure that the alternator is not oversped.
A factory generator flickers the light at idle also, your not going to harm the battery driving like that. Y original headlights would dim. The led ones don’t at all. Btw, I’ve only been driving on a rebuilt generator for 25 years with no issues.
Would fitting a slightly larger pulley on the alternator increase it’s output at idle?
Also I’m thinking of replacing the alternator I have fitted to my TR4A. Could you post a link or part number for the alternator? Also a link/part number for the alternator wiring connector? Thanks!
no, that would make it run slower.
@@MrWaalkman lol as you can see I flunked physics!
The concept is good though! A smaller pulley for the alternator would probably fix it. Not sure if other sizes are available?
@@TR4Ajim No worries, I'm an engineer with a 1.2 GPA from high school. :)
Could you change the size of the pulleys to make the alternator spin faster.?
I put that alternator on my 66 TR4A, I was very happy with it. Later I went with the Moss conversion that includes a supercharger :)
I don't think moss sells the supercharger anymore
I have the moss conversion on my tr4a but it sucks the generator warning light is always coming on
I've just recently fitted a 1988 Mitsubishi Mighty Max alternator to my 1973 TR6 because the Lucas one crapped out. I have all the bits to rebuild the Lucas unit, but honestly i'm not sure I want to put it back on given that the replacement works so much better, is stronger, smaller, and lighter.
Yeah, chain parts store electrical stuff is pretty "iffy" nowadays. If you want a 10si that won't let you down, get a Powermaster or Tuff Stuff alternator. You can get them in black powder coat and they look great in there - almost unnoticeable. Or get show-quality chrome if you are an extrovert.
My guess is the Japanese quality will last. Do the alternator characteristics give you output at x-RPM of the alternator itself. Do some math, maybe, and see, like Jim mentions below, if you can change the RPM of the alternator to bump up output voltage. My guess is it will self-clip at some max output so as long as you don't exceed the rating, in max RPM of the unit (probably pretty high...maybe 10,000RPM), you should be okay. But, as always, great job!
Yeah I should have filmed it, but we did do some math. Basically a 2:1 drive right now. According to the RPM/output graph that came with the alternator we are right on the edge. A smaller alt pulley would definitely be helpful. Just not sure how small they come?
Either smaller driven or larger driving pulley would help the engine idle alternator speed. A quick check of engine redline and corresponding alternator speed is in order to make sure that the alternator is not oversped.
Hey guys you need to put some fender cover on the car if your going to wear snaps belt buckles and zippers
You should have modified the bracket on the engine
A factory generator flickers the light at idle also, your not going to harm the battery driving like that. Y original headlights would dim. The led ones don’t at all.
Btw, I’ve only been driving on a rebuilt generator for 25 years with no issues.
Changed my lights to LED and can run everything with the generator at 1000 rpm's