Ford 302/5.0L swap easy?
#1
Ford 302/5.0L swap easy?
I have never swapped a motor in any vehicle. Is the 5.0 pretty mich a drop in swap on a 93 3.0 2wd truck? Motor mounts and tranny mounts and all?
i got to thinking today, wouldnt it make sense to swap the intake manifold for a standard carbureted setup so you dont have to fuaa with any computers or tunes? My only carb experience is with harley davidson motorcycles so forgive my ignorance. I was thinking find a 5.0 and t5 tranny from a late 80a mustang, stick a carb on it, and bolt it in. Easier said than done?
i got to thinking today, wouldnt it make sense to swap the intake manifold for a standard carbureted setup so you dont have to fuaa with any computers or tunes? My only carb experience is with harley davidson motorcycles so forgive my ignorance. I was thinking find a 5.0 and t5 tranny from a late 80a mustang, stick a carb on it, and bolt it in. Easier said than done?
#2
The hardware part of the swap is the same
The T5 car trans has shifter coming up thru the floor between the seats in the Ranger, just at the front of the seats
V8 truck transmissions come up under the dash
So either would require a custom bent shifter arm
The 1997-2003 F-150 M5OD-R2 from a 4.2l V6(bolts to 302) is the only manual trans that matched shifter placement in Rangers
Using a carb and distributor takes most of the wiring part out of the equations
You do need to add a fuel pressure regulator to lower the pressure from in tank pump to 7-9psi
Carbs and distributors require more maintenance, tune ups/adjustments a few times a year
The T5 car trans has shifter coming up thru the floor between the seats in the Ranger, just at the front of the seats
V8 truck transmissions come up under the dash
So either would require a custom bent shifter arm
The 1997-2003 F-150 M5OD-R2 from a 4.2l V6(bolts to 302) is the only manual trans that matched shifter placement in Rangers
Using a carb and distributor takes most of the wiring part out of the equations
You do need to add a fuel pressure regulator to lower the pressure from in tank pump to 7-9psi
Carbs and distributors require more maintenance, tune ups/adjustments a few times a year
#5
No, no welding required, just some drilling for motor mount plates
You would pull out the computer and its wiring harness
You leave the Temp sender wire and oil pressure sender wires for dash gauges
Add a new tach wire to coil if you want a tach
There is a Key on 12volt wire that goes to computer now, you can pull it back to engine fuse box or trace it and cut it to used for the coil/spark module
Good article here to read thru, applies to 1993 Ranger: https://www.therangerstation.com/tec...versions.shtml
You would pull out the computer and its wiring harness
You leave the Temp sender wire and oil pressure sender wires for dash gauges
Add a new tach wire to coil if you want a tach
There is a Key on 12volt wire that goes to computer now, you can pull it back to engine fuse box or trace it and cut it to used for the coil/spark module
Good article here to read thru, applies to 1993 Ranger: https://www.therangerstation.com/tec...versions.shtml
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420stackz (01-10-2021)
#6
#8
1996 to 2001 Explorer Or Mercury Mountaineer used/had the 5.0l/302 V8 as an "option", 2002 and up used different OHC V8s
These were EFI(fuel injected) and distributorless engines
Carbs and distributors are not efficient and require constant care/service, but only need 12volts/ground and fuel
EFI and distributorless are more reliable and fuel efficient long term, but need computer control, sensors and controllers, so extra wiring
Like 2011Supercab said one is better(EFI hands down) and one is an easier install
These were EFI(fuel injected) and distributorless engines
Carbs and distributors are not efficient and require constant care/service, but only need 12volts/ground and fuel
EFI and distributorless are more reliable and fuel efficient long term, but need computer control, sensors and controllers, so extra wiring
Like 2011Supercab said one is better(EFI hands down) and one is an easier install
#9
1996 to 2001 Explorer Or Mercury Mountaineer used/had the 5.0l/302 V8 as an "option", 2002 and up used different OHC V8s
These were EFI(fuel injected) and distributorless engines
Carbs and distributors are not efficient and require constant care/service, but only need 12volts/ground and fuel
EFI and distributorless are more reliable and fuel efficient long term, but need computer control, sensors and controllers, so extra wiring
Like 2011Supercab said one is better(EFI hands down) and one is an easier install
These were EFI(fuel injected) and distributorless engines
Carbs and distributors are not efficient and require constant care/service, but only need 12volts/ground and fuel
EFI and distributorless are more reliable and fuel efficient long term, but need computer control, sensors and controllers, so extra wiring
Like 2011Supercab said one is better(EFI hands down) and one is an easier install
Maybe cars require more care? I couldn't really figure why since they operate on the same principles.
#10
Yes, we would disagree on that one, lol
Gasoline has an air/fuel ratio of 14.7:1, and this is a WEIGHT RATIO not volume
14.7 pounds of air to 1 pound of gasoline
14.7 grams of air to 1 gram of gasoline
Gasoline's weight stays fairly constant between -20degF and 120degF
Air weight varies WIDELY with temp
"Hot air rises".......why?...........because its lighter than cooler air, it floats above it, like a Hot Air balloon, cooler air is denser, weighs more, which is why Cold Air Intakes can add a bit more power, you can add more fuel to denser/heavier air, because its a WEIGHT RATIO
If you live in an area where outside temp is the same year round then carb can stay at "best tune" year round
But most people don't live in a place like that, lol
So you have to have a summer and winter tune and its not all that accurate in fall and spring, lol
That's just physics not really an arguable point
Then there is also elevation above sea level, above 2,000ft elevation air starts to get lighter, and cooler but lighter even at say 80degF, in Denver(5,000ft) engines can be gutless without turbos because of the light air, and lower air pressure as well
Then there is the spark advance, vacuum advance is OK, but not that accurate with all engine loads, you have to be less aggressive with spark curve to avoid pre-ignition
Computer system uses MAF sensor to read air Weight, also an air temp sensor, so will fine tune for best mix in real time
Same for spark advance, it can change it in real time with engine load, calculated using MAF and throttle position sensor
If you define "best" as most power, most fuel efficient, in all conditions, and most trouble free, then computer control is it
Gasoline has an air/fuel ratio of 14.7:1, and this is a WEIGHT RATIO not volume
14.7 pounds of air to 1 pound of gasoline
14.7 grams of air to 1 gram of gasoline
Gasoline's weight stays fairly constant between -20degF and 120degF
Air weight varies WIDELY with temp
"Hot air rises".......why?...........because its lighter than cooler air, it floats above it, like a Hot Air balloon, cooler air is denser, weighs more, which is why Cold Air Intakes can add a bit more power, you can add more fuel to denser/heavier air, because its a WEIGHT RATIO
If you live in an area where outside temp is the same year round then carb can stay at "best tune" year round
But most people don't live in a place like that, lol
So you have to have a summer and winter tune and its not all that accurate in fall and spring, lol
That's just physics not really an arguable point
Then there is also elevation above sea level, above 2,000ft elevation air starts to get lighter, and cooler but lighter even at say 80degF, in Denver(5,000ft) engines can be gutless without turbos because of the light air, and lower air pressure as well
Then there is the spark advance, vacuum advance is OK, but not that accurate with all engine loads, you have to be less aggressive with spark curve to avoid pre-ignition
Computer system uses MAF sensor to read air Weight, also an air temp sensor, so will fine tune for best mix in real time
Same for spark advance, it can change it in real time with engine load, calculated using MAF and throttle position sensor
If you define "best" as most power, most fuel efficient, in all conditions, and most trouble free, then computer control is it
Last edited by RonD; 01-10-2021 at 09:54 PM.
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420stackz (01-10-2021)
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