for those who have installed a 4.0 UDP...... - Page 2 - 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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  #26  
Old 03-22-2007
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what about the belt......when i buy a belt, do i need to tell you that i am just getting the UDP and for a 4.0 OHV? or do i need to get a belt after i install it and can take measurements?
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  #27  
Old 03-22-2007
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Quote:
Originally Posted by lifted97ranger
now...



thanks Wayne......i am going to your site to order 1 now ........any HP increase when you have large tires and are low geared helps
its funny you said that. I'm an avid 1/4 mile guy. what i found out is:
underdrive pulley
K&N intake
catback exhaust

got me back to the stock times I had before i put the 33" tires on. You have to keep the go fast mods paced with the go slow mods. those bigger tires change your gear ratio and add the worse kind of extra weight you can put on your truck
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  #28  
Old 03-22-2007
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2" shorter than stock with the crank pulley
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  #29  
Old 03-22-2007
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Quote:
Originally Posted by graniteguy
got me back to the stock times I had before i put the 33" tires on. You have to keep the go fast mods paced with the go slow mods. those bigger tires change your gear ratio and add the worse kind of extra weight you can put on your truck
true.....hopefully though the 4.56's helped a bit......

Quote:
Originally Posted by graniteguy
2" shorter than stock with the crank pulley
do you sell 1? all i see on your site is for the 3.0......
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  #30  
Old 03-22-2007
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  #31  
Old 03-22-2007
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Quote:
Originally Posted by BBBB51

thats the same as mine, just higher $$.

maurice, i can pick a belt up today. just order any belt and i'll ship the correct one for your truck.
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  #32  
Old 03-22-2007
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Quote:
Originally Posted by graniteguy
thats the same as mine, just higher $$.

maurice, i can pick a belt up today. just order any belt and i'll ship the correct one for your truck.
alright.....placing my order now.....
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  #33  
Old 03-22-2007
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does the pulley come with instructions? is there a certain way it has to go on? i know on the older engines (like a 351M) the crank pulley has timing marks on it....
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  #34  
Old 03-22-2007
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Wayne So whats the total on a pulley and belt so i know what i need saved. If u dont mind. May as well get the cheaper 1.
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  #35  
Old 03-22-2007
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Quote:
Originally Posted by BBBB51
Wayne So whats the total on a pulley and belt so i know what i need saved. If u dont mind. May as well get the cheaper 1.
$290.95 shipped.....
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  #36  
Old 03-22-2007
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Its so nice having ppl into the same mods as others. thx for the info guys ITs gonna be a long 2 months.
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  #37  
Old 03-22-2007
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Quote:
Originally Posted by BBBB51
Its so nice having ppl into the same mods as others. thx for the info guys ITs gonna be a long 2 months.
yea but you have a '07 Sport Trac....
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  #38  
Old 03-22-2007
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do i need a gear puller to pull the old pulley off Wayne?
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  #39  
Old 03-22-2007
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The sport trac is the wifes . I have a 02 ranger And u know how that goes she wont even let me mess with the tires or rims.
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  #40  
Old 03-22-2007
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It has instructions but they assume some mechanical knowledge by the installer. Give me a call if you get stumped. Like I said earlier- the right tools and its pretty straightforward. Here is my little write up when i did mine:

http://stuffforyourranger.com/How_To...nderdrive.html
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  #41  
Old 03-22-2007
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lol.......i want a new Trac for my gf, but she dont want anything till we got a house...
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  #42  
Old 03-22-2007
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Quote:
Originally Posted by graniteguy
It has instructions but they assume some mechanical knowledge by the installer. Give me a call if you get stumped. Like I said earlier- the right tools and its pretty straightforward. Here is my little write up when i did mine:

http://stuffforyourranger.com/How_To...nderdrive.html
yea after i asked i saw that.........shouldn't be too hard.....how long did it take you? i figure about a 1/2 hour since i will be using an impact, have the radiator up and out of the way, and have an efan....
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  #43  
Old 03-22-2007
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oh yeah, the instructs are for a mustang. it has you removing the power steering pump for access. review my writeup before you start. if i didn't remove it, you don't need to remove it.
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  #44  
Old 03-22-2007
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Quote:
Originally Posted by graniteguy
oh yeah, the instructs are for a mustang. it has you removing the power steering pump for access. review my writeup before you start. if i didn't remove it, you don't need to remove it.
yea i just read it a second time........

would it be wise to buy a new oil seal incase i damage the one on there and because my engine has 92,000 miles on it?
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  #45  
Old 03-22-2007
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it wouldn't hurt. it's very easy to change it out. I replaced mine at 80,000 and it looked fine.

you need the pulley puller. gotta have it.

30min to an hour should be doable with all the clearance you have.
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  #46  
Old 03-22-2007
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sweet.....i will see if O'Reilly has one tonight or tomorrow.....or sometime this weekend.....i don't expect the pulley before then so.....

what is the actual name of that seal? do you know?
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  #47  
Old 03-22-2007
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Quote:
Originally Posted by lifted97ranger
sweet.....i will see if O'Reilly has one tonight or tomorrow.....or sometime this weekend.....i don't expect the pulley before then so.....

what is the actual name of that seal? do you know?

yous is shipping today. you;ll get an e-mail with tracking info.. thanks for the purchase.


i went to motorcraft warehouse and had to buy a front engine cover set, it's basically the timing cover gaskets and the seal. it wasn't much- maybe $30. they didn't list the seal by itself. a local parts store may have it by itself. "front crankshaft seal" is the term i used when i got mine. just make sure it's not that plastic piece that snaps on the crank pulley in my tech article. thats a different animal altogether.
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  #48  
Old 03-22-2007
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alright....thanks Wayne.......
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  #49  
Old 03-23-2007
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I installed a 4.0L ASP Underdrive crank pulley and then data logged the power results during the holidays. And now I've put about 5k miles on it so far.

Here a few quick notes..

Right at 5050rpms I gained 12hp
Basicly the whole torque curve moved up & I gained some TQ up top.
You can definately feel the power increase. Everywhere & no matter what throttle or speed your traveling at.
Gas milage is up a little too. Don't know exactly how much. But it's up. (avg-ing 18s now)
I've had ZERO issue with cooling or electrical power. It's not really been warm enough to run the AC yet.

I've put underdrives on 3 different cars now. And IMO it's a very solid bang for the buck. This ranger seems to have had the best results IMO too.

Belt size. I marked all the locations on my tensioner. (no load, lock, stock belt) And when I went to get a belt all the local store had was a 85" gatorback. It's been on there since and works good. It's operating at about 1" less of rotation than the stock belt even when it's got some heat in it. I'm keeping an eye on it because I am curious how much it'll grow in the summer heat.

Rich
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  #50  
Old 03-23-2007
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mine should be here on Tuesday.....hopefully it would be installed next Saturday....i hope i can see a difference......other than this the only other "bolt" on mods for my 4.0 OHV is a BBK throttle body, complete intake, and headers ......then it is on to the 4.5L stroker kit after that (which i WILL have done by the end of next year hopefully; well depending on what the ole lady has spend on the wedding already )
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