need a little more power

[blackbronc]

I've got Pacesetter headers on my BII. They've been on 5 years now.They fit perfectly and haven't had a bit of trouble with them other than knocking the crossover pipe off when doing some prerunner style fireroading. My fault not theirs. Solved with some muffler clamps on the slip joints. Only thing I didn't like was no O2 sensor bung as supplied. Seems odd since all 2.9s are F.I. I had to weld one in myself. They did provide a noticable boost, smoother with a little better accelleration and hill pulling. Not amazing increase but detectable.

 

[gaz]

@94 b4000
An OHV 4.0l using EEC-IV will respond well to the following will yield reduced engine load with improved fuel economy
• drop in K&N air filter
• ∆ to an electric fan, two if you have A/C
• headers to freeflow single 2½" exhaust +20hp (Borla, JBA, Edlebrock...)
• bored stock T/B
*options A or B will add to the above*

PLAN A will improve from stock performance:
1) spark plugs +1 or 2 heat ranges
2) engine oil cooler
3) a set of high output coil packs
4) multi-spark ignition
5) 8 mm or larger silicon suppression wires
6) 4.0 Explorer automatic, dual core radiator
7) Hypertech, JET, James Duff EEC-IV CHiP
8) optional, mill 0.035" off the heads for 1.5 to 2 points of compression (+6hp/point)

PLAN B is how the Blue Oval should have sold them:
1) spark plugs 1 or 2 heat ranges lower
2) engine oil cooler
3) flow bench port/polished intakes to heads +20hp
4) optioal, SOHC 4.0L flat top pistons (+2 points compression, +12hp)
5) custom reground camshaft +20hp
6) high output coil packs
7) multi-spark ignition
8) 8mm or larger silicon suppression wires
9) Explorer 4.0l, dual core radiator
10) PCM CHiP
11) only premium fuel and all synthetic fluids

An arguably less expensive option to PLAN B is to swap in the Ford SOHC 4.0L. I completely agree that with 37" rubber, a rear is a MUST.

 

[85_Ranger4x4]

 

[lil_Blue_Ford]

@94 b4000
An OHV 4.0l using EEC-IV will respond well to the following will yield reduced engine load with improved fuel economy
• drop in K&N air filter
• ∆ to an electric fan, two if you have A/C
• headers to freeflow single 2½" exhaust +20hp (Borla, JBA, Edlebrock...)
• bored stock T/B
*options A or B will add to the above*

PLAN A will improve from stock performance:
1) spark plugs +1 or 2 heat ranges
2) engine oil cooler
3) a set of high output coil packs
4) multi-spark ignition
5) 8 mm or larger silicon suppression wires
6) 4.0 Explorer automatic, dual core radiator
7) Hypertech, JET, James Duff EEC-IV CHiP
8) optional, mill 0.035" off the heads for 1.5 to 2 points of compression (+6hp/point)

PLAN B is how the Blue Oval should have sold them:
1) spark plugs 1 or 2 heat ranges lower
2) engine oil cooler
3) flow bench port/polished intakes to heads +20hp
4) optioal, SOHC 4.0L flat top pistons (+2 points compression, +12hp)
5) custom reground camshaft +20hp
6) high output coil packs
7) multi-spark ignition
8) 8mm or larger silicon suppression wires
9) Explorer 4.0l, dual core radiator
10) PCM CHiP
11) only premium fuel and all synthetic fluids

An arguably less expensive option to PLAN B is to swap in the Ford SOHC 4.0L. I completely agree that with 37" rubber, a rear is a MUST.

Considering the OP hasn’t logged in since January of 2010… thanks for bringing a thread back from the dead