power chip-

[DANGER RANGER 29]

I have a 2000 OHV non sohc 4.0 auto shift and was wondering what power chip/programmer works the best or any other things like cold air throttle body spacer with the ranger any help is great thanks

 

[Big Jim M]

Why am I wondering

Why Ford didn't spend the extra 75 cents and put one of them throttle body spacers in that engine?
Could it be that they spent hundreds of thousands of dollars finding just the exact length of the intake stream that would add the most power and produce the most economy?

Naaah! Some guy in his garage cameup with a far better way to do it and he now sells a "spacer"..

To be truthful a spacer under a carb can add extra power at a CERTAIN rpm. If a guy is running around the track at say..8300 rpm and he spends a few days trying spacers from 1/8" to 8" he might find just the one that would produce 6 horses at that 8300 rpm he is running at.. However many if not most of the spacers he tries will take horsepower AWAY at the intended rpm!

BUT no way a spacer under a Tb will produce anything.. specially for street use. If one ever finds a way to get more air/fuel into the chamber of a 4.0 it will clatter from high compression.. then the "ear" will shut down the timing and the advantage will go away.

So we've got what we've got!

Big JIm

 

[DANGER RANGER 29]

So big Jim what about power chip or cold air or even comp cams cam

 

[Big Jim M]

Ok

So big Jim what about power chip or cold air or even comp cams cam

A power chip can change the timing and fuel mixture away from what the Ford engineers tested over and over to give both ecnomy and power. So with an aftermarket chip (or reprogramming your present one) you may get a few more horses. But the downside is you will lose economy! AND you may lose reliability too.

Your vehicle already HAS cold air induction.. All the aftermarket kits I have seen actually put hotter air into the engine than the factory system does.. In this case cold doesn't mean cold! Also mot mentioned is filters such as K&N allow larger particles of dirt into the engine than factory type filters do.

Depending upon the proposed use of the vehicle a camshaft change CAN make horses at different rpm ranges than the factory camshaft. However one should know in advance where in his rpm range horses are needed by his particular vehicle. The factory camshaft is designed to produce it's power in the rpm range where MOST people use the engine.

I use my FX 4 off road a lot! So a stump puller camshaft might acually help my ride when offroad. However I drive 300 miles on an interstate hiway to get to the ranch..and the speed limit is 80 mph on that interstate.. So I have mixed emotions about installing a new cam in my ride.

Big JIm

 

[00RangerBlu]

Alright, another 00 4.0L OHV.
The first thing I did was buy a JET chip, K&N CAI and shorty headers. My gas mileage really didn't change. It did seem to run cooler. Felt a little better throttle response. When I put on the TB I could really feel it and I lost fuel mileage. Revamped the exhaust system and put in the CompCam 422. The 422 is aggressive and I had to reflash(because the chip couldn't handle it anymore) the ECU.
If you have any other questions let me know.