Jeep WJ Grand Cherokee Performance And Power Options

By Jeep Experts

Welcome to the jeepExperts.com function of WJ Generation Jeep Grand Cherokee efficiency and energy choices. Want to function your Jeep? Please get in contact with us and inform us about it!

Performance associated hyperlinks on this website online:

WJ Engine specifications / Elapsed Times

HO Engine specifications and features

FIPK (Fuel Injection Performance Kits)

Manifolds, standard and HO

Spark plug removal and installation

 

Performance features obtained with varied mods

As compiled by Dino Savva

 

4.0 I6 Engine

 

Factory energy scores
Horsepower 1993-1995: 190 @4750 rpm
1996-1998: 180 @4600 rpm
1999-2004: 195 @4600 rpm
 

Torque

1993-1995: 225 lb ft @3950 rpm
1996-1998: 220 lb ft @2400 rpm
1999-2004: 230 lb ft @3000 rpm

 

Item Horsepower acquire Torque acquire (ft.-lb.)
1. Okay&N FIPK 7
2. Bored 62mm TB 3
3. Bored 62mm TB spacer 2 3
4. Intake manifold heatshield ?
5. HP plugs 0-2
6. Splitfire plug wires 3 6
7. Dynomax Super Turbo cat-back exhaust 7 9
8. High-flow cat 2
9. Tri-Y header/S-pipe 10
10. JET Stage 2 PCM 8
(auto transmission)
11. Speedtweaks IAT adjuster ?
12. Electric fan conversion 3 3
13. Ported inventory cyl. head 11 4
14. Accurate Power huge valve head 16 7
15. Crane #753901 camshaft 10 15
16. Raise CR from 8.8 to 9.5:1 8
17. Accurate Power 4.6L stroker engine 75 105
18. Accurate Power supercharger 85 90
19. Nitrous Express equipment 50-75 90-135
With the exterior bolt-ons listed above (#’s 1-12), output needs to be about 225-230hp. Beyond that, inside engine mods or pressured induction are wanted (#’s 13-19).
See also  Jeep WJ Grand Cherokee Rear Power Outlet Installation

4.7 V8 engine

 

 

Factory energy scores
Horsepower 235 @4800 rpm
Torque 295 lbft @3200 rpm

 

Mod Horsepower acquire Torque acquire (ft.-lb.)
1. Okay&N FIPK 5 6
2. Brian Stroud’s RamIT chilly air consumption ?
3. Kolak 3″ cat-back exhaust 5 6
4. Modified Y-pipe + 3″ high-flow cat 10hp
5. Mopar Performance PCM flash 9 8
or 6. ASE chip 6 26
or 7. Kenne-Bell Optimizer II 10 9
8. Flometrics 70mm TB 5 7
9. Relocate IAT sensor ?
10. KRC Performance HO camshafts & consumption manifold 19
11. Remove clutch fan + quick belt PS/alternator bypass 10 17
12. Duner’s gasoline rail cooling system 16 29
13. Kenne-Bell supercharger 99
14. Paxton Novi-1000 supercharger 102 62
15. Garrett T04B turbocharger 10psi increase 144
16. Nitrous Express equipment 50-150

 

4.7 HO V8 engine

 

 

Factory energy scores
Horsepower 235 @5200 rpm
Torque 325 lbft @3600 rpm

 

Mod Horsepower acquire Torque acquire (ft.-lb.)
1. Okay&N panel filter 3
2. Okay&N FIPK 7
3. Brian Stroud’s RamIT chilly air consumption ?
4. Kolak 3″ cat-back exhaust ?
5. Modified Y-pipe + 3″ high-flow cat ?
6. ASE chip ?

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