Is anyone running an efan, and underdrive pulley? If so how is it working out and what kind of gains, loss' or noticeble differences are there. I have the 3.SLOW and am trying to get a little kick out of it since I'm running 32"s now and will run 35"s sometime during the summer.

Thanks for the input!

Thinking about getting a Bama Xcal over summer too if anyone has any input with all three of those mods together........

 

I have a UD pulley and an efan. After these mods I smoked D in the quarter. You should have seen him cry! Beat down by a 3.0! Okay, that's not entirely true - Marines don't cry.

Seriously, the pulley gives a noticeable increase 8-10HP. I haven't had any charging issues. I just have the single crank pulley. I didn't really notice any power increase with the efan, but I did gain some MPG. The fan runs off of a thermostat so it doesn't run continously and I have an override switch wired in so I can turn it off on long highway drives. BTW, the tuner rocks.

 

Yeah I felt some noticeable gains with that combo, get that Xcal and you'll notice even more..

 

im planning on getting the pulley kit from underdog this summer as well as an e-fan, i was thinking about the black magic fan from flex-a-lite, any other suggestions?

 

I run both. It made my truck feel stock a little bit faster, I mainly saw the MPG and torque increase though.

Match those with a tuner, you will be set!

 

Besides the XCal2 the fan & pulley were my next biggest gain & my best mileage.

Rick

 

Is it hard to install a pulley. What is all involved?

 

I was wondering what the advantages and disadvantages of the pulley kits (I think its 3 pulleys, underdrive, alt, and pump?) vs. just the underdrive pulley? Gas milage, torque, hp ect. I don't know which one I want.

Found the efan I want, just want to order both from same place and save a lil mabye.... so just need to figure out what I want in the pulley area....

Thanks