The secret to more power....

[KaiserBill]

Thanks. I think you've just proven my point. And that's all on top of a $21k conversion. And there's a lot of assumptions of "do all the work yourself" (bolt-on kits are one thing, removing and rebuilding an engine is on a whole different level of skills/tools necessary), and assumptions that you actually know what the hell your doing with matching all the right components and settings up to support the big power (there isn't a simple complete kit for this). More realistically, you're going to need to work with a performance shop that has experience in modding the 4BT, and prices for various portions of the process will skyrocket. And in the end, reliability is a concern.

For about the same amount of $$$, you could do a 6.1 or 6.4 hemi conversion (pay someone else to do it, that is), add a bolt-on supercharger *kit* from a reputable manufacturer, no engine mods necessary, be in the same ballpark of power output, and have an engine that can be diagnosed/serviced by any Chrysler dealer. Plus the Hemi sounds much better. The 4BT sounds like a school bus or garbage truck. Not impressive :-p

I said it was simple-- I didn't say it was a bolt on kit- i.e. idiot proof... And yes it does require more skills and understanding of the engines than bolting on a turbo kit. However, the rewards are so much greater to he who knows the secrets of the dieselly goodness!!!! As for reliability anytime you add a turbo or change the the chip-set in engine you reduce potential reliability. When you put the Prodigy kit on your Jeep reliability was compromised. This would be potentially more likely to have a failure. But, odds are a 4BT operating under its normal rpm with about 80PSI of manifold pressure would have a nice long life.

Myself, I would put a 4-53T Detroit Diesel in the Jeep with Compound turbo unit and I'd tweak the RPM to 2800-- which would add a little more complexity and then I would throw out the stock transmission and put in a Eaton Fuller 6spd model (maybe even an older Spicer 5+4 unit if I could it under it) and put in a heavy duty divorced Transfer Case and swap the axles out for U1400 series Portal Axles...


http://www.powerlinecomponents.com/l...automotive.pdf



My theoretical build would sound like Satan Himself Pulling Up To Your Doorstep For Your Soul! The best part is I could make it roast any 6.4Hemi build from AEV on the Dyno pretty much any engine that isn't 100k in price playing with pump gas would be a loser to this engine on the dyno. Not to mention being stroke the torque curve would be nearly flat. So, it would be epically overpowered on or off the road.