I have an 03 Durango w 4.7 and was wondering if anyone has done or heard of an ecu swap w/cherokee 4.7l HO. If so any and all
advice would be much appreciated.trying to get the most out of her but doesn't seem to be alot for the 4.7
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32"s
k&n cold air
3" dynomax catback
custom interior(still in progress)
next upgrade lift

 

The PCM might work but it would have to be flashed with the VIN of the new rig by the dealer. There would be no performance incentives.

You can send yours to B&G or another company and they will send you yours back overnight. This would wake up your 4.7L. Other than that K&N, ram air, and exhaust would go together great with the PCM upgrade.

 

thanx for the reply.greatly appreciate the info,and will definitly look into the pcm upgrade.anything i do to get some more power outta that 4.7 would be awesome. thanx again

 

UDI:

I believe the HO 4.7 had higher compression as well as different cams and intake. Not to say you could not make the swap, but several folks have found that performance increases for the 4.7 come in small steps, and usually with a pretty big chunk of change.

I think you will find that the Jeep PCM would not be easily compatible with our Durangos due to various parameters that are likely quite different between the two.

Sure does not hurt to ask and research though.

Don

 

Just go buy a superchips programmer for your 4.7. Easiest and painlessly way to maximize the pcm settings for your 4.7. I doubt if you will gain any better performance using a pcm from a HO 4.7. You might end up losing power as your 4.7 is not a HO engine.

 

thanx for the input and yes after more research i di find that the HO used different cams and pistons.it was a suggestion my neighbor made
but wanted to research it first.greatly appreciate theadvice and knowledge of all that have replied.I think I will go w/your advice Kensai
and get a power programmer when i have the cash .thanx again all