if anyones curious, i put the ranger on the dyno today
nothing has changed besides a sohc swap.
stock internal sohc with gibson headers.
35" tires, c4 trans, and 5.13 gears.
with the ohv it put down 100 hp and 143tq
as i rolled into the dyno on the old OHV tune the truck made 168hp/180tq *note that the programming for the ohv was completely safe to run. it wasnt lean anywhere in the rpm range. so a tune wasnt absolutely necessary
after some adjustments to the computer the final numbers were 179 hp/185tq
*note that the programming for the ohv was completely safe to run the sohc on. it wasnt lean anywhere in the rpm range. so for anyone considering this EEC-IV SOHC swap. a custom tune wasnt absolutely necessary.
to add.
heres a pic of a dyno sheet for a 5.0 explorer completely stock with stock sized tires.
