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Duratec Underdrive Crank Pulley
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OK Duratec guys, with the help of an anonymus friend of mine, and our very own mikehawk, I'm pleased to announce the possible availability of Duratec underdrive crank pulleys! I'll post some pics so you can all see the world class quality of these, but here's some rough info to get you going. They are a 20% underdrive pulley, mounted on a modified 96-99 pulley shaft. There are prototypes made for the Gen 3 and the Gen 4, however there are no dyno numbers as of yet. Pricing will vary from $150-$250, depending on demand for the product. Keep in mind these are made by a reputable pulley vendor that produces pulleys for many different kinds of engines. They've basically done us a huge favor by making these for us.
Some facts on the construction: The pulleys are aluminum, and hard coated to guard against wear and corrosion. They are mounted to the shaft with a woodruff key, and a taper-locking collar. It's actually manufactured to military specs, which is a little overkill, but better safe than sorry!
What I would like to do is get interested (or not interested) parties to vote in this poll, which will serve to guage interest in these.
On to the pics:
Some facts on the construction: The pulleys are aluminum, and hard coated to guard against wear and corrosion. They are mounted to the shaft with a woodruff key, and a taper-locking collar. It's actually manufactured to military specs, which is a little overkill, but better safe than sorry!
What I would like to do is get interested (or not interested) parties to vote in this poll, which will serve to guage interest in these.
On to the pics:
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Hehehe
My dealer could not do it. took them 4 hours and they said I would have to accept any damage they did before they would continue. I politely told them to put the wheel on and get the car out of the shop.
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Still got billed $120.00
Finally got a small shop across the street to do it for $50.00 after I told him the bump start method of busting the bolt loose. Of course this is after he wasted a half hour with his air wrench.
My dealer could not do it. took them 4 hours and they said I would have to accept any damage they did before they would continue. I politely told them to put the wheel on and get the car out of the shop.
Still got billed $120.00
Finally got a small shop across the street to do it for $50.00 after I told him the bump start method of busting the bolt loose. Of course this is after he wasted a half hour with his air wrench.
I was just starting research to see if a 2.5L UDP would fit, but this is much easier. Count me in
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The s***shop UDP is the same amount of UD as this one, give or take a couple percent.
Vulcan UDP's will be made by Dave Karpien, he's a member of this forum, and made some for the Rangers as well. I actually have the prototype in my possesion, I should have a chance to test fit it this weekend.
To clarify, the pictures show a stock Gen 3 and Gen 4 pulley, along with the new shaft and UDP. The UDP is the smaller one.
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Vulcan UDP's will be made by Dave Karpien, he's a member of this forum, and made some for the Rangers as well. I actually have the prototype in my possesion, I should have a chance to test fit it this weekend.
To clarify, the pictures show a stock Gen 3 and Gen 4 pulley, along with the new shaft and UDP. The UDP is the smaller one.
well, quit goofin off then.Originally posted by Bob Gervais@Apr 14 2004, 07:09 PM
The s***shop UDP is the same amount of UD as this one, give or take a couple percent.
Vulcan UDP's will be made by Dave Karpien, he's a member of this forum, and made some for the Rangers as well. I actually have the prototype in my possesion, I should have a chance to test fit it this weekend.
To clarify, the pictures show a stock Gen 3 and Gen 4 pulley, along with the new shaft and UDP. The UDP is the smaller one.![]()
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The function of a UDP is to free up HP and TQ. Because the pulley is smaller, it's closer to a 1:1 ratio, making it easier for the crank to turn the accessories. This will lessen the amount of power needed to operate the accesories.
Pulleys could be made for the accesories, and some places have. I'll use s***shop as an example. They made UDP's for the V8 accesories that never fit correctly, due to design issues with the alternator, etc. Over the course of time, alternators and other accesories were upgraded/changed on many cars, making it difficult to make pulleys that will fit them all.
Much easier to accomplish the same task by using one crank pulley. Effectively, it does the same thing as separate pulleys.
One thing I forgot to mention also, with this style pulley, because it has the bushing, would make it very easy to make different size UDP's (for race applications, etc) and swap them out at the track. Perhaps that would be a little overkill for a Taurus, but it's worth mentioning anyhow.
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Pulleys could be made for the accesories, and some places have. I'll use s***shop as an example. They made UDP's for the V8 accesories that never fit correctly, due to design issues with the alternator, etc. Over the course of time, alternators and other accesories were upgraded/changed on many cars, making it difficult to make pulleys that will fit them all.
Much easier to accomplish the same task by using one crank pulley. Effectively, it does the same thing as separate pulleys.
One thing I forgot to mention also, with this style pulley, because it has the bushing, would make it very easy to make different size UDP's (for race applications, etc) and swap them out at the track. Perhaps that would be a little overkill for a Taurus, but it's worth mentioning anyhow.
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