Recent content by Jezza

I'm about to start testing this very question. I bought a completely stock 1997 TJ with the 4.0 with the goal of testing some different mods from bolt-ons to tunes and all the way to cam and shaving the head. I'll probably start a thread soon as I gear up to start.

I know it's not the LJ, but I made one for that too. The TJ didn't have one so I made a Jeep one.

Lots to unpack here. It really depends on what you are trying to do along with what PCM and operating system you are using. NA is reasonably easy on the TJ as there is not much that can or needs to be changed. Fuel and ignition timing being the big ones. With boost it's a bit more...

From what I remember they use a big block chrysler tie bar lifter and slot out the tie bar to set the spacing wider. I think 505 tried to do something with roller at one time. Not sure where it got left off. Maybe a project for the little red Jeep.

They were drop in on my Russ ported Edelbrock with the LS valves. Not sure exactly what you were running. I rev to 5k and there is no indication of float there. I can't imagine 500 RPM more would result in float, but there are quite a few factors at play. I would think even 1k more RPM...

Sorry I missed it somehow. I am undecided on the springs. They work fine no issues, but I am still getting the same amounts of bearing material in the oil. Last oil change I cut open the filter and found a few nice size chunks. I almost wonder if my cam is bent. I remember the machine shop...

It would, but what fun would that be. It's a 32rh.

I want to see if it's possible to make 200 wheel hp or about 250 crank with some basic mods. Basically I think I can disprove or maybe verify whether or not basic mods make a difference on the 4.0. I don't plan on going any further than possibly a cam. Most likely a header, cat back, windstar...

The turbo LJ is going to go on hold for a quick minute while I give this new rig some love. I want to do some videos of before and after on some basic mods. There's probably going to be another stock airbox vs video as well.

I traded out the 15" wheels with the 35s for some 17s with 37s.

They were at one time being sued by HP Tuners. I used them a couple of times, but got frustrated when the software would expire and I had to beg to be turned back on. Another prime reason I don't use SCT either.

I'm working on a little side project. My multi-function switch failed again leaving the fog lights on. I had previously repaired the lever inside with some JB epoxy, but it wore another groove in it. I'm testing this replacement part to see if it will hold up long term.

I spent a week out in East Tennessee at the Windrock OHV area putting the LJ through its paces. Here are some of the highlights.

Go to the dealer and have them flash the PCM back to stock. That's the cheapest and easiest option.

This is what we use on the turbo kits... https://texasjeepproducts.com/products/jeep-4-0l-throttle-body-spacer-with-ports-and-2-bar-map-sensor-mount