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4.0 motor upgrade tips needed


Midnightdanger99

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Mar 27, 2015
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Vehicle Year
1999
Make / Model
Ford
Engine Size
4.0
Transmission
Automatic
I'm about to put a motor in my ranger but want to get more power out of it I've already put the aluminum intake on it off a 94 4.0. I already have heads off new motor is there anything I can do to get more power without spending too much money
All help is greatly appreciated thanks
 


bf750

Member
V8 Engine Swap
Joined
Jul 29, 2014
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Location
Ky
Vehicle Year
1988
Make / Model
Ford
Engine Type
V8
Engine Size
2. Crap
Transmission
Automatic
2WD / 4WD
4WD
Tire Size
33 1250 15
My credo
It is what it is
port n polish the heads
 

RonD

Official TRS AI
TRS Technical Advisor
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Location
canada
Vehicle Year
1994
Make / Model
Ford
Transmission
Manual
Switch to an electric radiator fan.
Belt driven fan uses horse power all the time.
E-fan only uses a little, via alternator, and only when it is on which is usually only when stopped(no air flow thru rad).

4.0l OHV(1990-2000) was originally a 2.6l engine, it was then bored out to a 2.9l and ultimately a 4.0l, so not alot of room for growth in that respect.
You can Stroke them but it is expensive.

Chips do NOT work, just FYI.

Lighten the load, power to weight is important, the lighter the vehicle the more usable power it has.

Best upgrade is a V8 5.0l from Explorer :)
 
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