tech questions

[mobile madness]

It feel like I'm posting all the time. Hopefully I'm not annoying anyone.

Ok so I drive a lot of the cars that come through our shop. None of them give me the seat of your pants feel like my 4.0ohv. Why is this? My engine has 209k on it and its the first 4.0 ford had. I can do burnouts and donuts all day, its quite fascinating.(my stock 8.8 probly helps though)

here's my old question but revised. Apparently ford tuned the 4.0ohv all the way to riceville and back. I learned that apparently the port n polish/bigger cam builds will neggate some of you low end. And it first the 4.0 started its life as a 2.8 then 2.9 and then ford got crazy and bored/stroked it almost as much as possible. Is there any real thing to do to boost low and high end?

I love the tourqe out of my 4.0. I don't want to lose a bit of it. I have the little tick problem but onces she's warmed up its gone. I just havnt torn it down to replace rocker/pushrods yet. Doubt the hydro roller lifters are shot though.

I'm 19 but I'm way past oil changes. Im just trying to keep my truck on the road...possibly forever.

 

[JohnnyO]

The 4.0 OHV has good low-end torque. That's what you're feeling. The 4.0 SOHC makes more total torque but at a higher rpm.
Typically things you do to boost the low-end will hurt the high-end and vice versa.
I would buy or fab a true cold air intake (i.e. a heat shield around the filter, otherwise you have a hot air intake), headers, cat-back exhaust, and a chip or tuner.

 

[mobile madness]

The 4.0 OHV has good low-end torque. That's what you're feeling. The 4.0 SOHC makes more total torque but at a higher rpm.
Typically things you do to boost the low-end will hurt the high-end and vice versa.
I would buy or fab a true cold air intake (i.e. a heat shield around the filter, otherwise you have a hot air intake), headers, cat-back exhaust, and a chip or tuner.

Id go pull a sohc outa the local junkyard but id probobaly need the harness and computer; not to mention a transmission. And I doubt the computer would like me leaving all the sensors the sohc unhooked.

Yeah I know about low rpm and high rpm balance. I've got cat back duals and a k&n box filter.(not to mention regular tune up material) truethfully I got more out of a fan and fan clutch than anything. I know all about cai, guys who leave the cone right off the maf thinking they're getting more power LOL. Haven't done headers yet. Need too, I'm all about making it breethe better.

Its probobly going to stay the way the way it is. Its stock self seems unbeatable. But me a4ld just took the big sleep.