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Unread 08-30-2012, 02:42 PM   #1
hairyjeep66
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Join Date: Jun 2012
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88 comanche stoker

Have an 88 mj and a 95 cherokee complete as a donor my question is the the throttle body the 95 xj is cable and my 88 mj linkage will the throttle body be able to be switch to work on the 95 intake or is there a fix to the issues

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Unread 08-31-2012, 06:05 AM   #2
cruiser54
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1990 MJ Comanche 
 
Join Date: Oct 2009
Location: Prescott, Arizona
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The throttle bodies are quite different, even to the point that the TPS works differently.

Explain exactly what you're trying to do and we can help. Are you trying to do this?



Cruiser’s HO into Renix Swap

This swap is easier than some will lead you to believe, generally those who have never done it. Those of us who have done it, like myself, will share with you the things that need to be done for a successful swap. Just think of it as swapping in a long block.

The HO and Renix have some differences but none that can’t be overcome very easily.

Any HO engine from an XJ or ZJ through 1998 can be used. One running change was that the rear of the head was no longer drilled and tapped for the temperature gauge sender beginning in the 96 model year. The sender can be relocated to the threaded hole in the thermostat housing taken from the HO engine. You’ll have to extend the wire to that location. Some brave souls even drill and tap the HO head for the sender.

You will be using the intake and exhaust manifolds from your Renix, along with all your sensors and wiring. Since the intake ports of the HO are slightly different, you use the Renix gasket. Exhaust ports are identical.
You will need to use your Renix distributor as it is different than the HO because they use different fuel management systems. The flywheel or flexplate from the Renix must be used so your CPS gets the correct signals. The valve cover from the Renix allows you to keep your CCV system intact and requires no modifications.

The HO block will have a plug in the coolant galley on the driver’s side of the block, closest to the front, which needs to be removed so your Coolant Temp Sensor can be installed in it’s place just as it is on the Renix. It requires a 5/16” square drive or a modified 3/8” drive that has been ground down to fit. Do this before installing the engine.

As for the knock sensor, which is located just above the oil pan on the driver’s side of the engine about mid way, all the blocks I’ve seen are threaded for it. If not, I’ve heard they may be drilled but not tapped. Tap the hole if that’s the case.


Revised 07/24/2012
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Unread 08-31-2012, 07:02 PM   #3
hairyjeep66
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Join Date: Jun 2012
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I'm building a stroker I have an 88 MJ bought new in 88 it has 224569 on it I live in upstate NY and I'm looking to get more power for towing and off roading I have an 94 XJ complete for a donor it has a rusted frame so I can get the complete motor and drive train since I have spring under axle I'm going to use the complete driver train to make spring over and go with a tall lift I'm at 4 inch now I also have a complete 88' 258 motor complete as a donor motor I switched the BA-10 to AX-15 I'm looking for info and ideas to do the swap I thank you for any info u can send my way
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Unread 08-31-2012, 10:05 PM   #4
hairyjeep66
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What do I need to do with the renix computer??
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Unread 09-01-2012, 05:32 AM   #5
cruiser54
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1990 MJ Comanche 
 
Join Date: Oct 2009
Location: Prescott, Arizona
Posts: 10,161
Easy way? Use the 94 engine as a donor. Use the 258 crank and rods and whatever pistons you decide on to build the 94 into a stroker. Bolt all your Renix stuff on to the 94 like described below. Add a 60mm throttle body from www.strokedjeep.com.

Cruiser’s HO into Renix Swap

This swap is easier than some will lead you to believe, generally those who have never done it. Those of us who have done it, like myself, will share with you the things that need to be done for a successful swap. Just think of it as swapping in a long block.

The HO and Renix have some differences but none that can’t be overcome very easily.

Any HO engine from an XJ or ZJ through 1998 can be used. One running change was that the rear of the head was no longer drilled and tapped for the temperature gauge sender beginning in the 96 model year. The sender can be relocated to the threaded hole in the thermostat housing taken from the HO engine. You’ll have to extend the wire to that location. Some brave souls even drill and tap the HO head for the sender.

You will be using the intake and exhaust manifolds from your Renix, along with all your sensors and wiring. Since the intake ports of the HO are slightly different, you use the Renix gasket. Exhaust ports are identical.
You will need to use your Renix distributor as it is different than the HO because they use different fuel management systems. The flywheel or flexplate from the Renix must be used so your CPS gets the correct signals. The valve cover from the Renix allows you to keep your CCV system intact and requires no modifications.

The HO block will have a plug in the coolant galley on the driver’s side of the block, closest to the front, which needs to be removed so your Coolant Temp Sensor can be installed in it’s place just as it is on the Renix. It requires a 5/16” square drive or a modified 3/8” drive that has been ground down to fit. Do this before installing the engine.

As for the knock sensor, which is located just above the oil pan on the driver’s side of the engine about mid way, all the blocks I’ve seen are threaded for it. If not, I’ve heard they may be drilled but not tapped. Tap the hole if that’s the case.


Revised 07/24/2012
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