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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 07-15-2008
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Help with MPG/HP

have any of you guys know of some good ways to boost gas milage and improve performance? I have done some research and have been looking into an cold air intake. Do these really save gas and improve performance? I have been told by a couple of people that it dosen't do any good without doing some excast changes. Just wanted to get some ideas opinions from you all.
I have a 2000 ranger with a 4.0 v-6 4 wheel drive. I am wanting to do this with the least amount of money. Any suggestions?
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Old 07-15-2008
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it will help a little but, but the price of the cold air vs fuel savings dosent add up. You can buy alot of gas for 300 bucks. I would just go with a drop in K&N with air silencer delete mod if it was me.
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Old 07-15-2008
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mileage and power gains go about as ordered, top to bottom roughly:
XCal 2 Tuner
Underdrive Drive Pulley Kit
Cold Air Intake
Exhaust
Headers


Tire size is also debatable.. Gearing for correct RPM's.. make an engine breath better, and it performs better generally with a proper tune, as well as usually netting a slight increase in MPG's depending on driving habits.
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Old 07-15-2008
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Quote:
Originally Posted by WowMike2001 View Post
mileage and power gains go about as ordered, top to bottom roughly:
XCal 2 Tuner
Underdrive Drive Pulley Kit
Cold Air Intake
Exhaust
Headers


Tire size is also debatable.. Gearing for correct RPM's.. make an engine breath better, and it performs better generally with a proper tune, as well as usually netting a slight increase in MPG's depending on driving habits.
X2
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Old 07-15-2008
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always remember what most ppl forget...not completely but for the most part

More HP= More Gas Used
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Old 07-16-2008
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^^not necessarily.


A more economical running engine creates more power, and also creates better fuel efficiency. I'm not talking like a greeny here...i'm talking the actual running of the engine....how is it running?

For example.....

A member here had a '03 FX4 Level 2, 8" lift on 35's, and supercharged. Tons of power when he needed it. And when he was just drivin' around, not hammering it, it got BETTER mpg than stock.

Another example....

The 1200ft lb Cummins down the road can TEAR IT UP on the strip running low 12 second 1/4 miles. Yet...he still gets 18mpg regularly.



Yes...when the skinny pedal is used in excess, yes more fuel is burned. BUT, even if it's a 400hp corvette, it'll get 25mpg in the city still. It's all dependent on the little skinny pedal.
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Old 07-16-2008
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lol funny but true
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Old 07-16-2008
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hear alot of people say no real gains with k&ns... also cold air kits for our trucks are really warm air kits.. sucking in hot air from engine compartment..don't see how there would be a gain
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Old 07-16-2008
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Originally Posted by ringer4x4 View Post
hear alot of people say no real gains with k&ns... also cold air kits for our trucks are really warm air kits.. sucking in hot air from engine compartment..don't see how there would be a gain
All depends on how you drive it :-) There are noticeable power gains at the higher the RPMs.. but you have to ask yourself.. how often do you (as the driver) feel the need to pump the RPM's high for that power gain?

If you dont see a need for it.. a standard daily driver wouldnt notice too much of a difference in a new intake.. minus the deeper tone of the exhaust, and the always cool intake sucking in sound
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Old 07-16-2008
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Drive like an old lady it helps, I know!

Keep the engine tuned and purring. I would start from Mike's list above. Tuner, Underdrive, exhaust, etc.

Good luck!
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Old 07-17-2008
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Quote:
Originally Posted by ringer4x4 View Post
hear alot of people say no real gains with k&ns... also cold air kits for our trucks are really warm air kits.. sucking in hot air from engine compartment..don't see how there would be a gain
True....hot-engine air.

but.....that tube the aftermarket uses doesn't suck shut like the stock rubber "crinkle tube" does. And the aftermarket tubes are smooth flowing...that's helps.

So...I want to make a custom setup using a SLP/Roush Thunderbolt airbox, and a custom mandrell bent intake pipe. I love that intake.....it's FRESH COOL AIR coming in from the headlamp area, completely sealed off from the engine. I noticed the best performacne from that box w/ the stock crinkle tube..just image a good tube and that box...can't wait.
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Old 07-19-2008
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So you end up spending about $1,000 or so in modifications.......

I guess if you haul and do TONS of long range driving, it would pan out..

I say we just find a way to Flintstone it!

Last edited by Hawklore; 07-19-2008 at 01:34 AM. Reason: Hooked un fonics reele wurkd 4 mee.
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Old 07-20-2008
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Quote:
Originally Posted by WowMike2001 View Post
mileage and power gains go about as ordered, top to bottom roughly:
XCal 2 Tuner
Underdrive Drive Pulley Kit
Cold Air Intake
Exhaust
Headers


Tire size is also debatable.. Gearing for correct RPM's.. make an engine breath better, and it performs better generally with a proper tune, as well as usually netting a slight increase in MPG's depending on driving habits.


yea but where can we get all this stuff. I can't find under drive pulleys
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