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Are UD pulleys supposed to be keyed??

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Old Feb 10, 2009 | 10:04 PM
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Exclamation Are UD pulleys supposed to be keyed??
I just bought a 25% UD pulley from Texas Speed and was wondering if it was supposed to be notched for a key. My dad seems to think so but I am not sure. I sure hope not because it does not look like there is anyway for a key... Any help will be greatly appreciated.
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Old Feb 10, 2009 | 10:06 PM
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Originally Posted by SSCamaro2000
I just bought a 25% UD pulley from Texas Speed and was wondering if it was supposed to be notched for a key. My dad seems to think so but I am not sure. I sure hope not because it does not look like there is anyway for a key... Any help will be greatly appreciated.
It depends on the model whether it is keyed or not. ATI & Powerbond both are for sure.
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Old Feb 10, 2009 | 10:10 PM
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My Powerbond is.
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Old Feb 10, 2009 | 10:26 PM
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I got an ASP and it doesnt look to be keyed, will this cause me problems??
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Old Feb 10, 2009 | 11:14 PM
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Originally Posted by SSCamaro2000
I got an ASP and it doesnt look to be keyed, will this cause me problems??
It doesn't need to be keyed. The stock one is not keyed as well. Most guys running mass power or blower set-ups key the crank. To stop the belts from slipping. The stock cranks aren't set up for a key as well. It has to be keyed.
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Old Feb 10, 2009 | 11:32 PM
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^^^^exactly what he said.....my powerbond is keyed as well.
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Old Feb 10, 2009 | 11:53 PM
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See thats what I thought, but my dad told me i didnt know what i was talking about. So even if the pulley was keyed the crank wouldnt be. Thanks guys I appreciate all the help.
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Old Feb 11, 2009 | 07:32 AM
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Originally Posted by SSCamaro2000
See thats what I thought, but my dad told me i didnt know what i was talking about. So even if the pulley was keyed the crank wouldnt be. Thanks guys I appreciate all the help.
Yeah but there are kits that allow you to pin the pulley to the crank. That is what most high hp guys are doing.
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Old Feb 11, 2009 | 11:39 PM
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Originally Posted by SSCamaro2000
See thats what I thought, but my dad told me i didnt know what i was talking about. So even if the pulley was keyed the crank wouldnt be. Thanks guys I appreciate all the help.
make sure to put rtv sealant on the key on the pulley when installing, so oil wont leak out!!
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