Got the UDP on. Like it. - Ranger-Forums - The Ultimate Ford Ranger Resource


4.0L OHV & SOHC V6 Tech General discussion of 4.0L OHV and SOHC V6 Ford Ranger engines.

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Old 02-19-2007
TORQUERULES's Avatar
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Got the UDP on. Like it.

It is just as noticable as the Bama tuner mostly because of how much easier the engine revs. Gets into the powerband quicker which is good. Is it worth almost $300? You decide. It was for me since I have been doing this modding thing for years and anything that can net 10-12 whp is worth $300.

It is easy to put on, but that crank bolt is a ***** (TIGHT). I made a tool to hold the damper and thus the crank out of a piece of 1/4" flat steel plate and a handle from 1" pipe. Welded it together made the holes for the bolts that will be used with the puller and a slotted hole for the crank bolt socket. Worked great. I didn't want to pull the radiator so I could use an impact. Make sure to loosen the crank bolt almost all the way out to let your puller put pressure on it. Once you have pulled up to the bolt, you can loosen it the rest of the way and pull off the damper/pulley by hand. I actually took the factory bolt out and used the longer one provided by ASP to push against.
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Old 02-25-2007
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How long did it take you to complete the whole job?
I already have an efan on mine, so I have plenty of room underneath with no shroud in the way. I want to replace my front seal at the same time since I have 83K on mine.
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Old 02-25-2007
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sweet....that is probably my next engine mod...
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Old 02-25-2007
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my next power mods are coil pack and the underdrive pully.. gotta get this SAS takin care of first
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Old 02-26-2007
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so what's you reaction to it?? I mean, u really feel a difference?? any problems with charging of the battery??
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Old 02-26-2007
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I like it. Noticable revability increase and power increase. Better mileage. Took about 2 hours taking my time. E-fan is next.

Sorry I am all Shatner today.
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