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[Z06] U/D Pullys

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Old Jul 28, 2008 | 12:50 PM
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Default U/D Pullys

Who sells the U/D pullys?
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Old Aug 16, 2008 | 12:53 PM
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Marc N did you ever find a source for under drive pullys as I am interested also...?/
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Old Aug 16, 2008 | 01:15 PM
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Just about every performance vendor over there on the left!

Here I just picked one (TSP who always have great prices):

http://www.texas-speed.com/shop/cate...MID=3&catid=16

Two different brands, belts, etc.
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Old Aug 16, 2008 | 03:11 PM
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Actually the shop who is installing my mods, ordered it for me.
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Old Aug 16, 2008 | 05:00 PM
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Originally Posted by DT
Just about every performance vendor over there on the left!

Here I just picked one (TSP who always have great prices):

http://www.texas-speed.com/shop/cate...MID=3&catid=16

Two different brands, belts, etc.


i got one from a forum member in the for sale section and did not know what belt to get. i called texas speed and they knew the belt specs off the top of their head. from the dealings i had with them on the customer service end, i would support this vender if i was buying new.
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Old Aug 16, 2008 | 10:37 PM
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Thanks !!
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Old Aug 16, 2008 | 11:33 PM
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Bought my Powerbond from Byunspeed. Happy as hell with it.
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Old Aug 17, 2008 | 03:19 PM
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I'm guessing easy to install since its on the front of the engine with a V8?
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Old Aug 17, 2008 | 05:28 PM
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Default U/d pulley

Can you really feel the power increase on a Z06?
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Old Aug 17, 2008 | 11:20 PM
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Originally Posted by Milan
I'm guessing easy to install since its on the front of the engine with a V8?
I think it's actually a huge PITA. Most people do it when doing a cam or heads/cam, because you have to remove the steering rack to get clearance (since the motor sits low and tight in a C5).

I would definitely *not* do just a pulley - I've got an ASP I'll get installed when I do a cam sometime soon. I think most people report about ~10HP or so and a little more perky rev response.
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Old Aug 20, 2008 | 12:15 AM
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Originally Posted by DT
I think it's actually a huge PITA. Most people do it when doing a cam or heads/cam, because you have to remove the steering rack to get clearance (since the motor sits low and tight in a C5).

I would definitely *not* do just a pulley - I've got an ASP I'll get installed when I do a cam sometime soon. I think most people report about ~10HP or so and a little more perky rev response.


Mine sat on the garage floor until it was cam swap time.
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Old Aug 20, 2008 | 09:06 AM
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Default UD Pulleys Are Useless

I bought a set (crank, alt and water pump) of UD pulleys for my T-Bird SC (Supercharged V-6).

Propaganda said 15 to 20 HP increase

I found they impact cooling and alternator performance since both turn slower.

Guys with SCs that have UD pulleys are replacing a lot of alternators due to idling with high power demands.

Just my 2 cents worth.

Ed
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