Jump to content
HybridZ
RA64

Jeep 4.0 swap?

Recommended Posts

I have a 72 240z I'v been looking to do a swap for a long time. some of the things iv looked in to are stroking a l28. $$$$. ca18det. well things have changed for me. (new baby boy coming in 2 weeks) i just bought a 1996 jeep cherokee for my girl an been looking more an more in to the 4.0 motor an i am impressed. the power is impressive for a SUV thats 2 tons. the throttle response is probably the best iv ever felt. Thing that I like in a motor, torque, throttle response, reliability, ease of tuning, an cheap!

INFO: 4.0L_HO_1999_WJ.jpg

 

Description in-line six, overhead valve (two per cylinder), flat-face followers, hydraulic lifters, cast iron block and head

Displacement: 3960 cc (242 cubic inches)

Bore and stroke 98.4 mm x 86.7 mm

Compression ratio 8.8:1

Redline: 5,300 rpm

 

Maximum power

 

USA - 190 hp (142kW)@4,600 rpm; 235 lb-ft (319 Nm) @ 3,200 rpm

 

Now for the fun stuff

1. bolt on parts

2. stroker

3.turbo

4.supercharger

 

Some other thoughts on this motor.

to me its very much like a l28 to me in size. the lay out is the same intake, an ext. to me the intake can use an update like RB20_DET_RB25_DET_RB26_DETT_Intake_Manifold_Plenum.jpg

these motors must be cheap they sold millions of them!

you can get parts every where, big plus!!!

tell me what you think

Share this post


Link to post
Share on other sites

not to sure but just found this.The '87-'90 engines had Renix electronic multipoint fuel injection, electronic ignition, a single 51mm (2.0") throttle body, and a rather inefficient low port cylinder head.

In 1991 engines received Chrysler sequential MPFI, a larger 60mm throttle body, revised intake and exhaust manifolds, and a more efficient high port cylinder head. As a result, these engines produced 13hp more than their predecessors and gained the "High Output" designation.

In 1996 engines received noise, vibration, and harshness fixes. The blocks were stiffened with extra ribbing, a main bearing brace was added, and lighter cast aluminium pistons were introduced to reduce cold start piston slap. Engines also received revised camshaft timing for more low rev torque.

In 2000 a distributorless coil-on-plug ignition system was installed, intake and exhaust manifolds were revised, and a more efficient water pump was included.

Share this post


Link to post
Share on other sites

I have a '96 Cherokee, and I love it. The engines in those things run forever, and make fine power and torque.

 

Most of the mods you're going to see for that 4.0 will be torque oriented, and that's what off-roaders want.

 

The best head for that engine is the '94, '95 model. They dropped compression steadily in that engine.

 

The best intake for that engine is the rounded '99-'01 intake (earlier models are squared off). As compression dropped, they maintained the power rating by steadily improving induction.

 

That intake and head were wort 24 rwhp on my Jeep.

Share this post


Link to post
Share on other sites

Too heavy for a Z car, IMO, even with a Hesco aluminum head. You can sort of get away with putting a heavy V8 in a Z because the V8's center of mass winds up being further back in the chassis, but a heavier inline-6 (like the Jeep) puts more weight over the front axle line.

 

But it is a sweet I-6, I've had 2 Wranglers ('97 Sahara and '04 Rubicon) with this engine, and I loved the smoothness, low rpm torque, and throttle response.

Share this post


Link to post
Share on other sites

If you want unique, I doubt theres many Z's in the US with Ford 4.1 inline sixes from Australia.

 

It'll cost mucho dinero to source and import, but the engine itself in aussie will be fairly cheap, it's shipping and sourcing parts that would be the pricey bit.

 

 

But hey, look at the aussie ford website and see what sort of power you can pull from a turboed motor :P the typhoon has pretty nice power figures, and room to mod.

Share this post


Link to post
Share on other sites
If you want unique, I doubt theres many Z's in the US with Ford 4.1 inline sixes from Australia.

 

It'll cost mucho dinero to source and import, but the engine itself in aussie will be fairly cheap, it's shipping and sourcing parts that would be the pricey bit.

 

 

But hey, look at the aussie ford website and see what sort of power you can pull from a turboed motor :P the typhoon has pretty nice power figures, and room to mod.

Any quick links for those of us (me!!) that are to lazy to try and find said sites? :-D

Share this post


Link to post
Share on other sites
Any quick links for those of us (me!!) that are to lazy to try and find said sites? :-D

 

http://www.fordaustraliaforums.com/ check out the forums.

 

http://www.fordmods.com/

 

http://www.snortperformance.com/ford_turbo_kits.htm

 

http://www.capa.com.au/kits_ford_au_6cyl.htm (superchargers)

 

http://www.fordxr6turbo.com/forum/

 

 

plenty more on google.

Share this post


Link to post
Share on other sites
Guest michanic220

who would want ANY part of a ford in there Z?

not me, thats for sure.:wc:

 

 

 

If you want unique, I doubt theres many Z's in the US with Ford 4.1 inline sixes from Australia.

 

It'll cost mucho dinero to source and import, but the engine itself in aussie will be fairly cheap, it's shipping and sourcing parts that would be the pricey bit.

 

 

But hey, look at the aussie ford website and see what sort of power you can pull from a turboed motor :P the typhoon has pretty nice power figures, and room to mod.

Share this post


Link to post
Share on other sites

Yea, I'd watch the bashing of any brand around here. You can get flamed for bashing Honda, and the Honda fans around here are in a small minority, there's a lot of Ford fans and buffs around so don't be so quick to make broad general terms like that.

 

All companies have had great ideas and contributions to the automotive world. Those that fail to see it are just missing out on some of the great things out there to be discovered.

Share this post


Link to post
Share on other sites

There is a stroker version of the 4.0L motor too (makes a 4.6L). 260Hp @5200 rpm - 295 ft-lbs @ 4000 rpm. Its a bit pricey. Info on quadratec.com website. Looked at it for a '97 Wrangler.

 

May want to check out Chevy's inline 5 cyl from the Colorado/Canyon line (H3 also). I've seen some interest for Toyota truck swap (getting rid of the 3.0L V6). Like 240 Hp and lighter weight than the 3.0L, I believe they are an all aluminium motor.

Share this post


Link to post
Share on other sites
Guest michanic220

im sorry but ill speak my mind, any honda car is JUNK. and i dont know where your getting the jeep 4.0 was deprived was honda, crystler had no part of ford and ford had no part with crysler.

Share this post


Link to post
Share on other sites
any honda car is JUNK. and i dont know where your getting the jeep 4.0 was deprived was honda, crystler had no part of ford and ford had no part with crysler.

 

He said it was "derived... not deprived" from FORD... not HONDA:

 

^ Funny you should say that, the Jeep 4.0L was derived from a FORD years ago.

 

And yes, FORD was involved with Jeep. Checky: http://en.wikipedia.org/wiki/Jeep (0h snapz!!!)

 

The first jeep prototype (the Bantam BRC) was built for the Department of the Army by American Bantam in Butler, Pennsylvania, followed by two other competing prototypes produced by Ford and Willys-Overland. The American Bantam Car Company actually built and designed the vehicle that first met the Army's criteria, but its engine did not meet the Army's torque requirements. Plus, the Army felt that the company was too small to supply the number needed and it allowed Willys and Ford to make second attempts on their designs after seeing Bantam's vehicle in action. Some people believe that Ford and Willys also had access to Bantam's technical paperwork.

 

Quantities (1,500) of each of the three models were then extensively field tested. During the bidding process for 16,000 "jeeps", Willys-Overland offered the lowest bid and won the initial contract. Willys thus designed what would become the standardized jeep, designating it a model MB military vehicle and building it at their plant in Toledo, Ohio.

 

Like American Bantam, Willys-Overland was a small company and, likewise, the military was concerned about their ability to produce large quantities of jeeps. The military was also concerned that Willys-Overland had only one manufacturing facility: something that would make the supply of jeeps more susceptible to sabotage or production stoppages.

 

Based on these two concerns, the U.S. government required that jeeps also be built by the Ford Motor Company, who designated the vehicle as model GPW (G = governmental vehicle, P showed the wheelbase, and W = the Willys design). Willys and Ford, under the direction of Charles E. Sorensen (Vice-President of Ford during World War II), produced more than 600,000 jeeps containing their cost slightly above 300 dollars per unit, due to its mass-production system economy. Besides just being a "truck" the jeep was used for many other purposes.

 

Oh... and is the Honda F1 racecar junk too? :D

Share this post


Link to post
Share on other sites

What is a crystler anyway? Is it one of those cars that makes crystling noises when you step on the accelerator? Or does it have a special engine made to run on chrystl oil?

Sorry, but broad sweeping statements aren't looked upon favorably here. If every car that was produced by a specific company were in fact junk, then they quite honestly would not be in business anymore.

Oh, and ever seen a Ford GPW? Okay, so they were made before AMC or Chrysler owned the Jeep marquee, but they have plenty of history collaborating

Share this post


Link to post
Share on other sites
im sorry but ill speak my mind, any honda car is JUNK. and i dont know where your getting the jeep 4.0 was deprived was honda, crystler had no part of ford and ford had no part with crysler.

 

Ford was contracted to produce "jeeps" during WW2 because the military demand was so high. (souce Fifth Gear ep:14x6)

 

The wiki does state anything about which engine they use and when the engine was produced. I'm going to take a wild guess here, and think they had L4 in there, thats why they could meet the torque requirements, that and the demand for steel was so high back then.

 

Trying to steer this thread back to the original topic/question. All I've read on here so far is that everyone is talking about the "car" not the engine.

 

http://www.allpar.com/mopar/40.html

Share this post


Link to post
Share on other sites

I love know it alls... (directed at michanic220)

 

The Inline six AMC blocks were originally developed by Ford. You know, AMC, the same company that used early buick V6's in the CJ series etc.? That AMC, the company that used very little of their own parts to build a vehicle and outsourced a lot of it?

 

I'm a huge jeep buff, I own several and wheel the piss out of them off-road. I know what i'm talking about.

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now


×