Waytec Posted March 8, 2010 Share Posted March 8, 2010 Hello everyone First post here I will do a proper intro shortly. I am hoping that I did not put the cart before the horse. I picked up a 4.0 HO out of a 94 XJ today to transplant into a 90 MJ. Can anyone point me to a thread or topic of someone that has already done a swap. I am hoping have the solutions to all the issues before I start pulling bolts out. Thank You Aaron Quote Link to comment Share on other sites More sharing options...
jpdocdave Posted March 8, 2010 Share Posted March 8, 2010 howdy, so you're saying you want to make your renix 4.0 an ho 4.0, engine management and all correct? you got some work ahead of you, but there's plenty here that have done it. Quote Link to comment Share on other sites More sharing options...
Waytec Posted March 8, 2010 Author Share Posted March 8, 2010 Ya I have the hole engine, wiring harness and computer with it as well. At the same time I will be changing it over to a open coolant system. Quote Link to comment Share on other sites More sharing options...
Wildman Posted March 8, 2010 Share Posted March 8, 2010 Welcome Waytec :wavey: If you have not found your way over to the DIY project write ups, you'll find alot of info over there, like - viewtopic.php?f=9&t=7659 Quote Link to comment Share on other sites More sharing options...
Waytec Posted March 8, 2010 Author Share Posted March 8, 2010 Thank You will start searching over there. I am a long ways into he tech section but not finding anything I need. Quote Link to comment Share on other sites More sharing options...
Red 1989 MJ Posted March 8, 2010 Share Posted March 8, 2010 Welcome to CC. :cheers: Quote Link to comment Share on other sites More sharing options...
JeepcoMJ Posted March 8, 2010 Share Posted March 8, 2010 to do a true H.O. swap, you need engine, flywheel/flexplate, the corresponding torque converter for the flex plate, ALL engine sensors, ALL electrical components, ALL wiring from the dash all the way forward, and the trans. harness and trans speed sensor. Quote Link to comment Share on other sites More sharing options...
dunl Posted March 9, 2010 Share Posted March 9, 2010 to do a true H.O. swap, you need engine, flywheel/flexplate, the corresponding torque converter for the flex plate, ALL engine sensors, ALL electrical components, ALL wiring from the dash all the way forward, and the trans. harness and trans speed sensor. He's also swapping from an auto into a manual. Good to see you here Waytec. :cheers: Quote Link to comment Share on other sites More sharing options...
JeepcoMJ Posted March 9, 2010 Share Posted March 9, 2010 to do a true H.O. swap, you need engine, flywheel/flexplate, the corresponding torque converter for the flex plate, ALL engine sensors, ALL electrical components, ALL wiring from the dash all the way forward, and the trans. harness and trans speed sensor. He's also swapping from an auto into a manual. Good to see you here Waytec. :cheers: yeah, I was just pointing out the differences in torque converters, too. the converters are basically the same, but they bolt to the flexplate in different locations. if you're going 5 speed, and converting to H.O., make sure you have a 5 speed engine harness and similar year dash harnes (any trans option), with a 5 speed ECU. Quote Link to comment Share on other sites More sharing options...
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