if it was simple, it wouldnt be a record then would it?

I was just hoping to get a correct answer

more like forum fail.

this 4.0 might be kinda fast

http://www.jpmagazine.com/techarticl...t_2/index.html

friggin torque numbers are over 700 on that motor

1 its not a 4.0
2 its not in a jeep
3 its not a cherokee

Alright well to answer this threads question. A 4.0 stroked to 5.0 the largest possible for the engine is at 330hp and 4xx? Torque now add a supercharger or nos. And it will go.
Or if the goal of this is trying to drag race an xj. Find a twin turbo supra and swamp the motor. And guess what an aw4 trans is an upgrade to the supra. So go ape ****.

1. it WAS a 4.0. now its a 4.9 stroker (they did their numbers wrong )

2. It is in a jeep, just not in those pictures

3. Not exactly sure what your point is in this thread. If i recall correctly a guy called Bennie at Hesco made around 750 hp when he dyno'ed his "4.0"

the point of this thread is in the title. I would like to know the fastest 1/4 and 1/8 times in a 4.0 cherokee.

if you have some actual times for other jeep I6s thats cool and would help the thread, but im looking for the fastest 4.0L/242in^3. especially those in a xj.

They were running injectors at 100% duty cycle...

Poor motor.

whaaaaaat if i put JATO on a jeep with a 4.0 in it? does that meet the criteria?

Alrighty well It seems that we'll stick with 13.2 at a 100mph. thanks for being helpful

Most power stock block? I believe goes to this man.


He posted better numbers than in the video on jeepstrokers.com! Believe it was 13#'s, head gasket pushed out, number 5 piston broke. Intake charge temps in the 200* or better range!

The 4.0s are good for about 8psi stock block, with a good air fuel controller. With no controller, or one that doesn't read boost, your looking at about 6psi. Water/Meth injection is guarnteed power on these 4.0's, because it will cool the intake charge considerably..which will help save the motor by fighting off detenation & make more power via colder air!
8psi, ported head with Ls1 valve train, & a tighter quench height would be awsome with 8psi and meth!

Back in 04 i ran a 2wd xj i had to the best of 13.8 @ 104 iirc

Nitrous?

Lots