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"rotary shaped alterntor pulley"

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Old Jan 9, 2005 | 11:45 PM
  #1  
LiL BenNy's Avatar
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"rotary shaped alterntor pulley"

anyone see this?

http://cgi.ebay.com/ebaymotors/ws/eB...category=38656
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Old Jan 9, 2005 | 11:50 PM
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Kinda cool. Does it really produce that HP though??
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Old Jan 10, 2005 | 12:13 AM
  #3  
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looks pretty cool.. probably only good as an engine dress up peice though.. not sure how functional it would be...
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Old Jan 10, 2005 | 01:19 AM
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yea figured it is prally more cosmetic but hes not like creates 10 hp bs so maybe its legit? idk much about engines and all the technology but a guess?
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Old Jan 10, 2005 | 01:25 AM
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It probably frees up some HP, but I doubt 10
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Old Jan 10, 2005 | 01:52 AM
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Looks good, but is it style over function?
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Old Jan 10, 2005 | 02:07 AM
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Originally Posted by cgrx
It probably frees up some HP, but I doubt 10
He's only claiming 2-3hp....that'd be right for a 10% underdrive pulley. Looks trick, I reckon.
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Old Jan 10, 2005 | 01:11 PM
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pretty sweet, not real anxious to play with my belts though.
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Old Jan 10, 2005 | 01:45 PM
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Looks very similar to the one's that Higgi produced for the Rx-7. I'll post a pic of my old Rx-7's engine bay if anyone if curious as to how it looks on the engine.
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Old Jan 10, 2005 | 04:08 PM
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no you read it wrong i didnt say it claimed 10hp... i said its NOT like he claimed 10hp bs everyone tries and pulls... he actually states 2-3hp...so thats more realistic
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Old Jan 10, 2005 | 04:29 PM
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Originally Posted by MyRxBad
Looks very similar to the one's that Higgi produced for the Rx-7. I'll post a pic of my old Rx-7's engine bay if anyone if curious as to how it looks on the engine.
I'll take "Pics of old rotary engines" for $500, please Alex.... :D
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Old Jan 11, 2005 | 08:01 PM
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*buzzer sounds*

DAILY DOUBLE!

Today it's our video daily double. Take a look at the following pic.
Attached Thumbnails "rotary shaped alterntor pulley"-rotorpulley.jpg  
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Old Jan 11, 2005 | 08:07 PM
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Nice......Ahhh, distributors....those were the days....!

Thanks,
Gomez.
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Old Jan 11, 2005 | 10:36 PM
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Would it be much lighter????????
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Old Jan 11, 2005 | 11:12 PM
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hey even if the dont work... there always still cute! :p
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Old Jan 11, 2005 | 11:16 PM
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too bad i just can't afford to underdrive my alternator
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Old Jan 12, 2005 | 11:02 AM
  #17  
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It was lighter on the Rx-7. I don't know how much the one weighs on the Rx-8, so I can't comment.

Damn, I miss my first gen Rx-7.
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Old Jan 13, 2005 | 07:42 PM
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I don't really want to underdrive the alternator on a car that was a **** poor battery as it is.

Looks damn cool, though.
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Old Jan 20, 2005 | 10:06 AM
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OK, I went ahead and bought it. My wife's limited me to the occasional $50 purchase for the car.... until we get the insurance check for her car. Then I'm allowed to go crazy.

Just looking at it, it's very nicely machined. Fits in the palm of my hand. I'll do a size/weight comparison this weekend. He's in Florida, so it was a really quick turn around. Not sure if I'm going to install, I'm still toying with the idea of using it as a paper weight at work. LOL

On a side note, he did send a few kitkat mini's with it. Guess he wanted to sweeten the deal... sorry, couldn't resist.
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Old Jan 20, 2005 | 04:46 PM
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rotary shaped alternator pulley

weight: 107 grams -OR- 3.75 ounces
diameter: 2.5 (ish) inches

I say 2.5(ish) because I'm measuing out to the lip, not the surface where the belt would be making contact with the pulley. I'll guestimate that the contact surface diameter is 2 3/8.


**Edit***
Just ran outside the width of the OEM alternator pulley is right around 2.25 inches, lip to lip. Subtract the width of the belt (times 2) and that's the diameter of the contact surface.

So the rotary pulley is slightly larger. Hrmm, what effect would this have? Also, anyone know the weight of the stock alternator pulley? cortc?
Attached Thumbnails "rotary shaped alterntor pulley"-rotar-pulley.jpg  

Last edited by Labop; Jan 20, 2005 at 05:02 PM.
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