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Old 10-31-2016, 04:36 PM
  #30281  
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Originally Posted by Godless Commie
Timing belts are cog belts and they do just fine at all revs with valvetrain load. And shock. And rapid acceleration.
Just like the belts which connect the crankshaft to the transmission on some Harley Davidson motorcycles, the drive belts on old Roots superchargers, etc.








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Old 10-31-2016, 05:07 PM
  #30282  
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Why Joe, why?



I'm dead already...
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Old 10-31-2016, 05:10 PM
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Originally Posted by Joe Perez
Still, the motor in the photo is clearly a brushless 3-phase AC motor.
Why is it using such thick gauge wire? An AC 3 phase motor of that size would typically be no greater than 5hp. It's probably drawing 5 FLA. These motors typically ouput a low torque at a slow shaft speed, so that seems pretty useless.

It could be brushless DC. But i don't know much about those, i think some have 3 leads for the 3 / 6 commutators.
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Old 10-31-2016, 05:21 PM
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Originally Posted by Erat
Why is it using such thick gauge wire? An AC 3 phase motor of that size would typically be no greater than 5hp. It's probably drawing 5 FLA. These motors typically ouput a low torque at a slow shaft speed, so that seems pretty useless.

It could be brushless DC. But i don't know much about those, i think some have 3 leads for the 3 / 6 commutators.
Brushless DC motors are rare in automotive applications, as the permanent magnets add a lot of weight and size. That housing looks like a conventional AC induction motor to me.

It's hard to judge the size of that motor given the context, but it looks like it might be a Curtis AC50. Here's the spec sheet for that motor:





It makes a respectable amount of torque at 0 RPM, and delivers peak HP at what is probably the point where the engine is running out of airflow.


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Old 10-31-2016, 05:37 PM
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I see. What a unique application.

I'd assume just hook a couple of them to the drivetrain.

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Old 10-31-2016, 05:50 PM
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Originally Posted by Godless Commie
I'm pretty sure the main function of that motor is providing low rpm torque to help the engine climb to its powerband..

I struggle to see any other explanation for the cog belt setup.
That belt would be unpleasant under load at high rpm.


Or, I could be wrong.


Edit before I am publicly humiliated:

I guess I am wrong.
Timing belts are cog belts and they do just fine at all revs with valvetrain load. And shock. And rapid acceleration.

So there.
i like when you say things, even when you are wrong.
My phone takes shitty pictures, but I won $75 in a costume contest today.
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Old 10-31-2016, 05:54 PM
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Originally Posted by Erat
I see. What a unique application.

I'd assume just hook a couple of them to the drivetrain.[/img]

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Old 11-01-2016, 09:31 AM
  #30288  
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Old 11-01-2016, 10:13 AM
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Saw this on facebook

Name:  L70uV9s.jpg
Views: 13
Size:  56.3 KB

This is what is cool now
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Old 11-01-2016, 10:19 AM
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what am I focusing on? the unnecessary splitter support?
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Old 11-01-2016, 10:27 AM
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???

I'm pretty sure splitter supports have been 'cool' for a while.
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Old 11-01-2016, 10:47 AM
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In unrelated news, I usually go to a nearby pastry shop for breakfast.

And, I share my food with the less fortunate.


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Old 11-01-2016, 11:35 AM
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Originally Posted by Braineack
what am I focusing on? the unnecessary splitter support?
The turnbuckles are attached to bumper.



Originally Posted by TurboTim
???

I'm pretty sure splitter supports have been 'cool' for a while.
Fair enough
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Old 11-01-2016, 11:51 AM
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Originally Posted by Full_Tilt_Boogie
Saw this on facebook



This is what is cool now
I'm interested in what else is going on here though. I see some interesting bracketry and some sort of tube structure in there. The splitter/turnbuckle thing may be idiotic but it's possible they are trolling us and hiding what is really going on there, or at least I hope so.
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Old 11-01-2016, 12:15 PM
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Speaking of just seen on facebook - another Miata swap kit:
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Old 11-01-2016, 07:32 PM
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click to play

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Old 11-01-2016, 08:56 PM
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Facebook Post
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Old 11-01-2016, 11:18 PM
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Intercooler from a 2016 Focus RS that a buddy let me have. Test fit on Saturday but it looks like a good fit from my initial measurements.

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Old 11-01-2016, 11:30 PM
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definitely looks like it will fit the mouth perfectly
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Old 11-02-2016, 06:46 AM
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