Working on putting together a multi-part post to catch everyone up in my Son’s jeep build. Last we left off, we’d completed the drivetrain, suspension, and interior upgrades. Wheelbase is 100”, the track width is 79”, and it had probably less than 100 hp at a mile high.
Next upgrade has to be some more horsepower. There’s really only a few ways to get more umph out if this armor plated 2-seater on tons: could put in a bigger motor, put Andrew on a cleanse, or turn to forced induction. Since I think there’s a near 80% chance I’ll be building another Jeep in the future, think being able to bolt something on would be ideal so forced induction it is.
We started researching various methods and found that there aren’t really any kits available anymore for the 4.0l. Banks used to sell a turbo kit but eliminated it when they had problems with the 2004 and earlier ECM tunes.
This is our first foray in forced induction so even pictures of kits no longer available provided opportunities to learn. During our research we ran into a guy who had a supercharged 4.0l made by Boosted Technologies. He was nice enough to let me drive it and I was more than a little underwhelmed at how it performed so it wasn’t tough to rule it out.
We ended up going with a shop out if Arizona that claimed they could help. Instead of bashing them, I’m going to take the high road and just say it was a complete Fn disaster. We never even got all our parts, they shipped us used parts, the overall kit was ghetto-garbage hodgepodge of shady tree back woods BS. Needless to say, Andrew and I ended up sourcing or fabricating most of our own parts.
Andrew was able to find a shop and parts dealer close to us where we were able to get the right parts to complete the build. Blow off valve, air/water intercooler, charge pipes, silicone boots, etc. and we were able to get after it.
As part of the project we installed headers and gave all exhaust parts a cerakote finish to keep consistent with the “Midas” theme (black/yellow). The stuff is amazingly easy to apply but is nasty smelling stuff. Like dizzy with only a sniff nasty.
We were able to refresh the down pipe by sand blasting. It’s not stainless but will do for now with and with a little modifications, it fit fine. The up-pipe didn’t work so we made our own.
