Underdrive pulleys

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Apr 11, 2011 | 11:46 PM

#21

dodgeman2289

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Joined: May 2010

Posts: 633

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From: martin county/florida

Quote:

Originally Posted by kikidbird

I had underdrive pulleys and I didn't like them. I didn't notice any difference in HP. At a stop light the engine would idle really low and want to cut off. When I would back up out of my driveway and the steering turned all the way with the power steering pump all full strain the engine would cut out. 4X4 on low gear turning the wheel all the way, the engine would cut off. I have 33x15 Pro comp mud Terrain tires so the power steering demanded a lot of power. My experience and opinion, I don't like Underdrive Pulleys.

wut cam you running i was told that once we put 1.7 rr's in are engines we could not get a bigger cam!

Apr 12, 2011 | 08:05 PM

#22

281-318magnum

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Joined: May 2010

Posts: 112

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From: BAYTOWN, TEXAS

The belt I suggested will work, it's a real snug fit but it will work.

Apr 12, 2011 | 11:59 PM

#23

redheadhunter21

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Joined: Apr 2007

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From: Miami, Fl

You can put in a bigger cam with the 1.7's just dont go to big or you run into problems also you can get the cam ground for the 1.7's

Apr 13, 2011 | 12:20 AM

#24

Gerehead8

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Joined: Jan 2010

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From: Wisconsin

Quote:

Originally Posted by redheadhunter21

You can put in a bigger cam with the 1.7's just dont go to big or you run into problems also you can get the cam ground for the 1.7's

Some of the problems being rocker to head clearance (factory magnum heads can only take .480 total lift I believe or maybe thats max cam lift with 1.6 ratio rockers so with 1.7 you must have less cam lift) and possibly piston to valve clearance.

Apr 13, 2011 | 12:22 AM

#25

dvowicker

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Joined: Jan 2011

Posts: 73

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Quote:

Originally Posted by kikidbird

hey if your wanting to get rid of them underdrive pulleys let me know

Apr 13, 2011 | 02:34 AM

#26

97tn4x4

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Joined: Mar 2009

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From: Memphis, TN

Quote:

Originally Posted by rl99dram

Man thats so awesome, my tires are way to meaty and expensive to light off haha, if I smash it off a turn I can cherp'em and thats bout it haha. I wanna get some crappy tires (265s) and puttem on back just to light up haha.

You can only chirp them with 4.88's. I can chirp mine with 3.55's lol.

Apr 13, 2011 | 09:32 AM

#27

Kwdog75

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Joined: Mar 2011

Posts: 167

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From: Ontario, CANADA

Quote:

Originally Posted by PurplDodge

Ha!

The loss of power to my accessories is one reason why I wont get underdrive pulleys. The 7 or so horsepower "freed-up" from underdrive pulleys is not worth it to me.

Just use an Optima Yellow top for your battery, you'll be able to use your power accessories and use the underdrive pulleys.

Apr 13, 2011 | 03:59 PM

#28

redheadhunter21

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Joined: Apr 2007

Posts: 2,831

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From: Miami, Fl

Shoot I can spin my tires off a turn without a problem and there 33x12.5 and this is with 3.55's, cant wait until I buy my 35's so I can change my gears

Apr 13, 2011 | 10:51 PM

#29

rl99dram

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Joined: Jan 2011

Posts: 184

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From: MO

I also have a 5.2L my friends got the 5.9L with same size Lift and tires, he can roastem off right on the spot... Ive tried, its gotta be a 5.2 thing.