Thanks guys. I put new head on my 4.0 and it just feels sluggish
Thanks guys. I put new head on my 4.0 and it just feels sluggish
Thanks guys. I put new head on my 4.0 and it just feels sluggish
Starters,300hp at crank or to the ground?? Big big difference, especially if auto and 4x4..auto and 4x4 will eat 20%ish of that 160 hp from factory. .also the explorer is a big HEAVY truck not made to be a big hp race car..200 Rwhp is pretty easy to get (to ground) any more and your gonna be dropping ALOT of money into it..Can the 1st gen 4.0 top 300 hp? Curious what this motor can do, Ive been told there is just no hope for this that its as good as it gets from the factory.
Thanks guys. I put new head on my 4.0 and it just feels sluggish
I had that same problem when I changed heads on my 87 2.9L ranger. Turned out to be a valve spring retainer wasn't installed correctly. One day it would run fine, the next day it had no power. An intake valve wasn't closing all the way so it was sucking oil up into the intake. I was getting 28 mpg on the highway though.My new heads are using a quart of oil every tank. Had a compression test done and #1 was 130 dry and 175 wet.
My new heads are using a quart of oil every tank. Had a compression test done and #1 was 130 dry and 175 wet.