Renegade Posted January 23, 2008 Share Posted January 23, 2008 I unvieled my MJ at my jeep clubs recent chili cookoff. Everybody drools over a Comanche :D We were talking about it having the Renix motor & how parts availability is getting smaller & smaller. Someone suggested swapping over all the necessary componants from an HO 4.0. I'm sure it's not possible but kinda got me wondering just what the major differences were outside of the computer(& accompanying sensors) not having to relearn at each startup. How about the motors hard parts, ie, pistons, cam, even injectors & such. I have no intention of pursueing this, just curious..... Link to comment Share on other sites More sharing options...
LEAD_NOT_FOLLOW Posted January 23, 2008 Share Posted January 23, 2008 What do you want to know? I run a HO head on a Renix block with my 4.6L stroker in my XJ... Link to comment Share on other sites More sharing options...
Renegade Posted January 23, 2008 Author Share Posted January 23, 2008 Well like I said I didn't have an answer for the guy since I didn't know if it WAS possible. Basically to swap over all the electronics & injection & stuff. Basically everything from an HO motor onto a Renix block since I hear all the horror stories of hard-to-get parts for the Renix motors. It was just something brought up that made me go "Huh" Link to comment Share on other sites More sharing options...
Oizarod115 Posted January 23, 2008 Share Posted January 23, 2008 Well like I said I didn't have an answer for the guy since I didn't know if it WAS possible. Basically to swap over all the electronics & injection & stuff. Basically everything from an HO motor onto a Renix block since I hear all the horror stories of hard-to-get parts for the Renix motors. It was just something brought up that made me go "Huh" hard to get parts? :nuts: if anything theyre cheaper than HO parts... case and point fuel pressure regulator on my jeep 20bucksish, on a buddy's HO 80ish. Link to comment Share on other sites More sharing options...
Geonovast Posted January 23, 2008 Share Posted January 23, 2008 The HO uses a different cam than the Renix motors. They even switched cams again in 96, I believe. Link to comment Share on other sites More sharing options...
DirtyComanche Posted January 23, 2008 Share Posted January 23, 2008 Why ditch the renix? It's a better fuel injection system than a lot of them, IMHO. And it's not like ANY of the parts are discontinued. Link to comment Share on other sites More sharing options...
Geonovast Posted January 23, 2008 Share Posted January 23, 2008 From what I understand the Chrystler computer is smarter than the Renix one. Link to comment Share on other sites More sharing options...
tjbliley Posted January 23, 2008 Share Posted January 23, 2008 It is but smarter is not always better. It just needs more info to make a decision. Renix does it with just a few data points. Link to comment Share on other sites More sharing options...
Pete M Posted January 23, 2008 Share Posted January 23, 2008 Agreed. I like the simplicity of the Renix stuff. I don't need a computer scanner to know what's going on. :D Link to comment Share on other sites More sharing options...
A-man930 Posted January 23, 2008 Share Posted January 23, 2008 I'm still deciding if I'm going to go the full HO-swap or Renix-retrofit route. I have an HO sitting in my garage, but I can't decide wether to re-use my old manifolds and stick with the Renix, or pick up an HO wiring harness and swap entirely. Its interesting to hear everyone's opinions on this 8) Link to comment Share on other sites More sharing options...
armybmbsqd Posted January 23, 2008 Share Posted January 23, 2008 I'm with LEAD_NOT_FOLLOW, I use a HO head, intake and Borla header on my RENIX block stroker. Just a few simple mods and it works great!! Pat 89 MJ 4.7 Stroker Link to comment Share on other sites More sharing options...
Blue XJ Posted January 23, 2008 Share Posted January 23, 2008 I'm with LEAD_NOT_FOLLOW, I use a HO head, intake and Borla header on my RENIX block stroker. Just a few simple mods and it works great!! Pat 89 MJ 4.7 Stroker Same here, HO head and actaully a HO block too with my stroker, running all Renix electronics, very simple and easy to hook up. Link to comment Share on other sites More sharing options...
Eagle Posted January 23, 2008 Share Posted January 23, 2008 From what I understand the Chrystler computer is smarter than the Renix one. No it isn't. The Chrysler system has no knock sensor, so it cannot run at the maximum possible advance. It has to run on a pre-mapped curve that is less than optimum in order to avoid ping. That's why HOs typically get about 2MPG worse gas mileage than Renix vehicles. Link to comment Share on other sites More sharing options...
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