xjcrazy0346

Ok I have a 96 cherokee 4.0 I am curious about what performance options I have and what will the best be. Any and all suggestions will be greatly appreciated

Cummins93

Supercharger

Turbocharger

How much money you got?

jpmarine6786

What type of performance are you looking for?
Supercharge
Turbocharge
Stroker

cruiser54

And you post this in OEM tech???????????????

I'm moving it.

peep

Best performance investment will be regular oil and filter changes.

CobraMarty

Here's some real numbers-

Some trends that I have noticed-
Stock 4.0L- 135rwhp/160-165rwtq (crank 190HP/225TQ)
4.0L+'All the bolt on's' +15rwhp/+15rwtq to 150rwhp/175rwtq (crank 210HP/240TQ)
4.6L Stroker- displacement+CR(+15%)+cam(+8%)+head work(+7%)--195rwhp/245rwtq (crank 260HP/ 328TQ)
5.0L Stroker- (+10% over 4.6L) 208rwhp/280rwtq
4.0L+BOOST 6pounds- 210rwhp/265-275rwtq (crank 300HP/375TQ)
Stroker4.6L+?BOOST 4pounds +25%--->244rwhp/306rwtq(estimate) 325HP/410TQ(crank estimate)
Stroker4.6L+?BOOST 6pounds +37%--->267rwhp/335rwtq(estimate) 355HP/450TQ(crank estimate)

Dynojet reads 10% HIGHER than Mustang Dyno.

Click Here for many dyno results

xjcrazy0346

Thanks for that info Marty I appreciate it. And as for wasting everyone's time I sorry I wasn't trying to. I just wanted some advice. I'm just looking for some more gas milage and maybe 10 to 35 hp gain kinda on a budget

cruiser54

Budget and performance don't belong in the same sentence.

xjcrazy0346

That's true but I work for a shop so I get a pretty good discount lol

XJlimitedx99

Bolt on's: more air in, more air out with enough fuel to keep up and a strong spark to burn it.

-true cold air intake (not a cone filter next to the exhaust)
-bored throttle body (larger butterfly valve)
-free flowing headers
-mandrel bend downpipe
-free flowing cat
-free flowing muffler-
-mandrel bent tailpipe
-4 hole injectors
-upgraded ignition to allow larger spark plug gap

So after all that you're like $1500 into upgrades for maybe 15hp. It's not worth it.

Do a stroker or v8 swap.

xjcrazy0346

[QUOTE=XJlimitedx99;3268224]Bolt on's: more air in, more air out with enough fuel to keep up and a strong spark to burn it.

-true cold air intake (not a cone filter next to the exhaust)
-bored throttle body (larger butterfly valve)
-free flowing headers
-mandrel bend downpipe
-free flowing cat
-free flowing muffler-
-mandrel bent tailpipe
-4 hole injectors
-upgraded ignition to allow larger spark plug gap

So after all that you're like $1500 into upgrades for maybe 15hp. It's not worth it.

Do a stroker or v8 swap.[/QUOTE
True that's a good point. i was thinking maybe a intske and a throttle bodie and a spacer maybe some headers. And injectors thays it not much just a little more juice ya know.thanks for the info xjlimited

Rogue4x4

[QUOTE=xjcrazy0346;3268235]Do not talk of cat removal on this site please. It is against federal law and against the rules here. I have edited your post to reflect that.

Fred/N0AZZ

If I might suggest a complete tune-up everything replaced after you have checked for any codes, if you have any fix those first. Then start with all new fluids from the radiator (get a new one and water pump), drain and replace differentials, trans, transfer case with new fluids. The oil and filter are a given and check and fix any oil leaks. This is where to start to gain a few HP and MPG.


Once you finish all of these then come back and we can help you with a few more but these should come first.


BTW forget about a spacer they are worthless and gain nothing.

xjcrazy0346

[QUOTE=roninofako;3268239]Ok thanks I didnt do it actually it was gone when I bought it

XJlimitedx99

was this directed towards me? I understand that rule and why it's in place. Had no intention of recommending removing emissions equiptment.

Edit: never mind, I see now that it wasn't.