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Discussion Starter #1
Guys can you do me a favor and tell me the difference???

Thanx;)
 

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Discussion Starter #2
TTT
 

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The Wizard Of Aaahhhhh's
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The one on the left is the stock crankshaft pulley, the one on the right is the UDP.


Chris
 

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Discussion Starter #4
oooooooo I see I though the Underdrive Pulleys and the CrankShaft Pulleys were to different things...Thanx man;)
 

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Discussion Starter #5
I thought the Crank Pulley was the Harmonic Balancer and the Underdrive Pulleys were a totally different part.

For Example: I could buy the Crank Pulley and the Underdrive Pulleys and use them together, since they are a totally different part.

Damn am I confused....:confused:
 

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The Wizard Of Aaahhhhh's
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4u2nv said:
I thought the Crank Pulley was the Harmonic Balancer and the Underdrive Pulleys were a totally different part.

For Example: I could buy the Crank Pulley and the Underdrive Pulleys and use them together, since they are a totally different part.

Damn am I confused....:confused:
You are right, but not on our cars. One some cars, you can buy underdrive pulleys for the water pump, alternator, power steering pump..etc and still use the original stock crank/dampner pulley. On our cars they make one underdrive pulley that slows down all the accessories. This is the pulley pictured above. There is a company that makes a UDP with a vibration dampner built in it, but I don't remember the name. I do remember it was pretty expensive though.

Hope this clears it up for ya.


Chris
 

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Discussion Starter #8
Thanx guys...now I am clear on the subject...

Also I think BorschRacing or something like that made the UDP's with the Dampers.;)
 

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og
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buschur racing makes the udp w/ balancer but i do not believe it is worthwhile nor do i believe it will work as well as the unorthodox udp; i believe most of the gains from the udp seem to actually come from the lightened rotational mass on the crank as opposed to the actual underdriving. just my opinion, plus the buschur udp is approximately double the price, close to $400; i looked into 'em both and after much research decided to go with unorthodox's udp. it is also a very easy part to replace, pull your crank pulley and the udp goes right on there. well, good luck and safe travels.

- mike
 

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Discussion Starter #11
Thanx guys...I think I am going to go with the Unorthadox UDP's.
 
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