Whipple vs 4.0SOHC - Ranger-Forums - The Ultimate Ford Ranger Resource


2.9L & 3.0L V6 Tech General discussion of 2.9L and 3.0L V6 Ford Ranger engines.

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  #1  
Old 09-06-2005
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Whipple vs 4.0SOHC

I need more power outta my truck, for about the same amount of money i could find a wrecked 4.0 ranger and part it out from what i need and sell whatevers good and still be ahead of supercharger, as far as reliability is concerned. Anybody know of a good info site on the 4.0SOHC?
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Old 09-06-2005
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Quote:
Originally Posted by Muddy02Edge
I need more power outta my truck, for about the same amount of money i could find a wrecked 4.0 ranger and part it out from what i need and sell whatevers good and still be ahead of supercharger, as far as reliability is concerned. Anybody know of a good info site on the 4.0SOHC?
You will need to find a donor with a good transmission, too. The 3.0 transmission case won't bolt to a 4.0L and both 4.0L transmissions are rated for higher torque.

Also, you will need to swap the PCM, engine/trans wiring harness and Y-pipe. In all likelihood, your 02 Edge already has an 8.8 axle that you will need to handle the output of the 4.0L.

The most logical donor would be a 2002 but a 2001~2003 should be very compatible. 2003's have no EGR which is a reliablility plus, IMO. Supposedly, the 2003-up have the tensioner problem completely fixed ... The 2004+ have wiring and intake differences but could be adapted if necessary.
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Old 09-06-2005
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I've been weighing this same choice myself. The 4.0 gets terrible fuel milage, but the whipple dictates high-octane fuel. The dark-horse 3rd candidate is a 5.0 swap. That would afford me more power than a 4.0, with fuel economy comparable to a mildly modded 3.0, but the initial expense and difficulty would be greater on an order of magnitude.
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Old 09-06-2005
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How much worse is the 4.0's mileage than the (stock) 3.0's? I thought the EPA spec was something like 1-2 MPG at best..
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Old 09-06-2005
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Get a car! I bet the whipple would sound tight though!
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Old 09-06-2005
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Power output would be about the same for each one. Personally, I say sell your truck and buy a 4.0 ranger and save yourself the headache.
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Old 09-06-2005
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Quote:
Originally Posted by Wowak
I've been weighing this same choice myself. The 4.0 gets terrible fuel milage, but the whipple dictates high-octane fuel. The dark-horse 3rd candidate is a 5.0 swap. That would afford me more power than a 4.0, with fuel economy comparable to a mildly modded 3.0, but the initial expense and difficulty would be greater on an order of magnitude.
I think the key to a 5.0 swap with acceptable FE is the axle ratio. We had a '96 2WD F150 S/C 5.0L manual w/3.08 axle and ~29" tires. It would get 20+ MPG @ 70 per, better than my 4.0L Ranger ever has. The F150 was no drag racer but it had enough go to leave most traffic behind.

It weighed about the same as my porker Level II. I don't know if it would be a good idea to go all the way to 3.08 but 3.31 should be about right on a Ranger with 31" tires.
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Old 09-06-2005
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What kind of mileage do you see these days Bob? I suppose you should qualify that w/ how you drive it..

I've been baybing it lately (early shifts, no more than 2k except on the Interstate, and never more than 70 MPH). I'm seeing mileage as high as 18-20 MPG. .. Which I find a pleasant surprise..
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Old 09-06-2005
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ride a bike
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Old 09-06-2005
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Quote:
Originally Posted by NHBubba
What kind of mileage do you see these days Bob? I suppose you should qualify that w/ how you drive it..

I've been baybing it lately (early shifts, no more than 2k except on the Interstate, and never more than 70 MPH). I'm seeing mileage as high as 18-20 MPG. .. Which I find a pleasant surprise..
The best I can do on a highway trip is about 19 MPG at 70 MPH. I don't pay much attention to around town but it is definitely a lot lower than that.
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Old 09-06-2005
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Sounds like we're on the same page.. Driving 'normally' I see 16-17 MPG combined.
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Old 09-06-2005
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i got 21mpg highway with my 4.0 before the programmer...and 22mpg now with the chip. I usually cruise between 70 and 85mph depending on traffic. I think i get good mileage highway cause my gears are 3.55
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Old 09-06-2005
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Quote:
Originally Posted by Scallion02EDGE
i got 21mpg highway with my 4.0 before the programmer...and 22mpg now with the chip. I usually cruise between 70 and 85mph depending on traffic. I think i get good mileage highway cause my gears are 3.55
Compared to mine, you have taller axle gearing, lighter weight, lower 2WD powertrain friction, narrower tires, a programmer and a more fuel economy friendly overdrive ratio (0.75 vs 0.79 on the manual). It all adds up.
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Old 09-07-2005
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Well selling it is out of the question, I love my truck, plus i couldn't get the tremor system with a 4.0. Also a 4.0 would be better bet for me over supercharger, I was just curious of any write ups on the swap, found alot for the ohv engine, and a few for the ohv to sohc but none 3.0 to sohc.

thanks for the tips bob, rwenzing
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  #15  
Old 09-07-2005
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With 3.73's I was averaging 240Miles per tank ( about 16 gallons ).. 15mpg. I put in 3.55's about 2 weeks ago and now average 290 ( 18mpg )over the 3 tanks that I have drained ( Empty usually requires 16 gallons for me. ).

I didn't notice any ' loss of launch ' to be honest. I MIGHT try some 3.31's over the winter to see what happens.

To reply back on topic.. I've helped with a 3.0 to 4.0 swap in an 02 tremor. Its a time consuming process ( would be faster at it now havign learned ) but it did take the 4 of us a whole day and the next morning.

Price comparrison speaking, If your states emissions are lienient, a good v8 swap is the best way to go. Its time consuming but the tunability and rewards are worth it.

D.

Last edited by D.; 09-07-2005 at 09:09 PM.
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Old 09-08-2005
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D, could you give me any tips that helped you? I wont be doing to swap , anytime soon, next summer at the earliest and thats if everything goes ok im between more power or lift to do first. I live in kansas so there arent really any emissions at all
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Old 09-08-2005
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the only think i know of is www.suppersixmotorsports.com as of right now all thats availible thru them is ported and polished and a valve job heads... they say soon to come a matching cam
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