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

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Old 07-16-2007
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Mods for the biggest Hp gain

Hey guys, Wow what a great site. I love it
I have a 2001 Ranger XLT 4.0L SOHC. I am looking to gain as much horsepower as possible. Currently( Besides cosmetic mods) I have a K&N air intake kit and a Xlerator exhaust(soon to be a Flowmaster 40). I just bought the truck and love it but would love it even more if it had more horses. I have heard and read of under drive pulley systems. Are they worth it? When i am done moding the engine i plan to buy a X-Cal 2 chip. Should i wait to buy the chip or buy that first? I thought i would get the chips lastly because when purchasing the chip you have list the mods that the truck currently has. I am open to any ideas.thnkx
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Old 07-16-2007
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Pulleys won't effect a tuner. It frees up HP that was used to turn the accessories, but doesn't effect air/fuel/timing. Both of those items are beneficial with the tuner being the easiest to install.
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Old 07-16-2007
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I have asked this question before and what i got was to get better headers, midpipe, catback, intake, and a programmer and pulley's...
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Old 07-16-2007
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Ditch the ricemaster muffler, get a borla. You'll gain torque. The biggest hit for power would be an EE Supercharger kit. They are pricey, but effective.
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Old 07-16-2007
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^ i was going to say both of those things...

flowmaster has the least power gain i have heard, if not lost?
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  #6  
Old 07-16-2007
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If you want power Flowmaster wont do it, thats for sound. Power I'd go either Borla or Magnaflow. Im still thinking of taking out a loan to go SC haha.
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Old 07-17-2007
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Thanks for warning me about the Flowmaster.. I will reconsider the Flowmaster.I do want to junk this Xlerator in the worst way. BTW what is the exact defintion of "cat-backs". Is it two pipes straight off the engine with no "y"s?
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Old 07-17-2007
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"cat back" means after the last catalytic converter you replace the pipe, muffler, and tip usually.

Basically My Exhaust goes JBA headers to one cat on each exhaust side. Then the pipe from those cats go into 1 cat. That one cat has 2 inlets and 1 outlet. So the 1 outlet to the tail pipe is "cat-back" I then had the outlet pipe, muffler, and tip replaced with 2.5" pipe (over the stock 2"/2.25") and had a Borla Turbo muffler in place of a stock muffler and a Magnaflow 3" tip inplace of the orginal tip.
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Old 07-17-2007
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What ever you decide, I highly recommend purchasing through:

www.Underdog-Performance.com
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Old 07-17-2007
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+1



no one mentioned stickers... they are dirt cheap and add tons of HP, ESPECIALLY the NOS stickers.. toss a few of them on and you will own the streets hands down!!





















Last edited by 99ranger4x4; 07-17-2007 at 11:46 PM.
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Old 07-18-2007
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nitrous!!! most bang for the buck. always there... not so much.. fun.. hell ya!

but i have jba headers and according to the butt dyno i got a lil mid range boost.
once i get caught up on bills and some parts for my bike im going to get the underdrive pully and an E-fan so(and tranny cooler) so around october i will let you know how a 07 4.0 with headers, pully and efan runs at the track.. i still have stock muffler.. not to fond of v6 exhaust.. may put a magnaflow on so its a low sound.

stock i ran 15.6 1/4mile spinning thru 3rd.. thats what i have to compare too..
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Old 07-18-2007
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Bolt on mods in this order:
- EE supercharger
- stroker kit (sorry can't remember who makes it)
- JBA headers and exhaust
- SCT XCalibrator 2 tuner
- Underdrive pulleys
- intake
- efan
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Old 07-18-2007
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Intake is included in the EE kit ^^^^
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Old 07-18-2007
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Quote:
Originally Posted by IR0NS1N
Intake is included in the EE kit ^^^^
well not if you exclude the EE kit.....
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Old 07-18-2007
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Ok i am looking at JBA headers now... How do i know which side of the truck the EGR is on?
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  #16  
Old 07-18-2007
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Never mind that one^^^^^^^^^^^^. I found the answer at Underdog-Performance.
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Old 07-19-2007
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I've done a few bolt on's now. X-cal, underdrive, e-fan, after cat exhaust, K&N kit.

IMO the underdrive gave the most bang for the buck. X-cal would be second up, e-fan, then exhaust. K&N did give me power but I could'nt tell it from the seat of the pants impression. (I measure torque with autotap via my laptop)

All the stuff I have in place now makes the truck enjoyable to drive everyday. Milage is up to 21 too. (FX4 - 4.10s - stock tires)

Rich
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  #18  
Old 07-27-2007
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I dont understand why in the first few posts, people are arguing about which muffler, mufflers give you hardly any power at all, cold air intakes will give you like, 1 rwhp, a muffler like 3 at most.... the catalytic converters are hindering your performance the most,

i would say catless y pipe, headers to replace stock manifolds, underdrive pulleys, im new to the whole ranger scene but is there any do it yourself computer tuning programs for rangers that you can hook up to the car with a tactrix cable?
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  #19  
Old 07-27-2007
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Quote:
Originally Posted by ZiggyMarley420
I dont understand why in the first few posts, people are arguing about which muffler, mufflers give you hardly any power at all, cold air intakes will give you like, 1 rwhp, a muffler like 3 at most.... the catalytic converters are hindering your performance the most,
Nope. They are hi-flow converters with a secondairy pre-lit cat following. Theres really NO restrictions at all. This would also jepordise emissions testing as well and could possibly cause serious fines ( depending on which state it is ).

Quote:
i would say catless y pipe, headers to replace stock manifolds, underdrive pulleys, im new to the whole ranger scene but is there any do it yourself computer tuning programs for rangers that you can hook up to the car with a tactrix cable?
Theres a few out there. The BEST bet is to speak with Doug from bamachips and have him do a tune on an xcal or sct or whatever he is presently using .
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Old 07-27-2007
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I say BEEF up internals, get heavy dutier stuff then add an EE S/C
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