Jusnes underdrive pully's - Ranger-Forums - The Ultimate Ford Ranger Resource


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Old 04-11-2006
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Jusnes underdrive pully's

I was looking at the underdrive pully kit from jusnes and i was wondering if anyone has put them on there 3.0 and if you can tell a diffrence because all i have done is mod's for the look's of my truck and i would like to do some engine Mod's.

Thanx in advance.
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Old 04-11-2006
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the pulley we sell is made by ASP, one of the pioneers in the pulley field, the 3.0 actually responds very well to an underdrive pulley, and for its relatively low price, its a pretty good mod!
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Old 04-11-2006
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Unless you need a lot of alternator amps at idle. I'm taking mine off and selling it. Even with a 1.875" alternator pulley, I have too little with the winch and e-fan.

With the stock pulley and the small alternator pulley, I should be good.

It does make a difference though. Not looking forward to going back, but I need to to meet my electrical needs. I bought a 200 amp large case 3G alternator, but even they need a bit more revs at idle to really put out.
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Old 04-11-2006
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right, if you use it with an e-fan or other aftermarket electronics, we recommend a bumped idle to make up for the lost amperage.
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Old 04-11-2006
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Ha ha! For which you need a custom tune...yes, yes, the cash flow (out) never ends, lol...

Good for business though!
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Old 04-11-2006
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if you dont have a tuner, GET ONE, haha. that should be anyones first mod IMO, it will compensate for any other mods you may do, and changing the idle would require hitting a few buttons, heh.

but youre right john, for every mod there is always some consequence. you just have to decide if the trade off is worth it. on my F150 i did the ASP pulleys and bumped my "drive idle" to 850 rpm, and never have any problems at all.
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Old 04-11-2006
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I'll get a tuner one day, Bob -- probably from you. Just too cheap for it right now, lol.
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Old 04-11-2006
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stop posting after me, its freaking me out
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Old 04-11-2006
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sound's good i dont have any major electrical upgrade's so i should be fine. i do plan on getting the E-Fan from your site because i did a E-Fan on my 85 ranger 2.5 and MAN did it make a diffrence! But that wont happen for a few more month's.
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Old 04-11-2006
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Oh and do i get a free decal? I can advertise for 75% off! J/K
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Old 04-11-2006
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haha, anyone can have a free decal, but we are out right now, need to order a few more, heh
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Old 04-11-2006
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do i need a new belt or does the tensioner take all the slack out of the belt?
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Old 04-11-2006
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ASP reccommends a K060863 belt. 6 rib approx 86.3 inches long.
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Old 04-11-2006
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so the stock one wont work? I just got a new one about 4 day's ago!
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Old 04-11-2006
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take it back and say its too long, before it gets too dirty
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Old 04-11-2006
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check the recipt tho... my advance wouldnt let me take back my idler pulley after i found out it didnt fix my sqeel but i only get 24 hours to return it...
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Old 04-11-2006
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HAHA^^ il'l just get a new one
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Old 04-11-2006
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Oh and how long does it take to ship? Will it get here by the weekend?
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Old 04-28-2006
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Well i put the pully in about 4 day's ago and i ran through a tank of gas and well the milage is up! I got a extra 30 miles a tank! and i think there is more power but i cant realy tell. well heres some pic's i took to show the diffrence of the pully's.
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Name:  pully1.jpg
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Thanx Mr.Jusnes
Ps. Still waiting on sticker's!
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Old 04-28-2006
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hey great!! glad you like it! stickers, ah yes, everyone is waiting, haha. we are falling behind on the decals but we will catch up soon!!
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