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Honda Odyssey Motor Swap/Upgrade advice

Old 05-16-2019, 09:30 AM
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Default Honda Odyssey Motor Swap/Upgrade advice

I have a 2010 Odyssey Touring with the 3.5L J35A7 VCM motor. Timing belt tensioner broke and bent valves, possibly a rod based on what repair shop says.

Bottom line I got hold of motor from 2012 Acura engine code J35Z6. Has 35 more horsepower and 29 more torque. I don't plan to race, but thought it might be a fun upgrade if not too much work.

I want to know if I can put this motor in the Odyssey with minimal fuss and what I would need to keep from old motor and new.

I am worried it being different and the what problems I may encounter.
Will the Odyssey ECU work?
Should I used the old Injectors and throttle body or ones with the J35Z6 motor?
Will the J35Z6 rockers work with VCM?
Anything else I should know....

I posted this in another forum before I realized this would be more appropriate.


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Old 05-19-2019, 07:13 AM
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Default Re: Honda Odyssey Motor Swap/Upgrade advice

I hope someone here is knowledgeable on this subject, but I suspect that most (such as myself) will not be. Have you tried looking at any forums specific to the Odyssey? Sorry that this reply isn't of more help.
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Old 05-22-2019, 07:13 AM
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Default Re: Honda Odyssey Motor Swap/Upgrade advice

I have done a little digging into the idea of a non-VCM engine in an Odyssey. the most notable difference is VCM vs VTEC both mechanically (valve train/cylinder head assembly) and electrically/electronically (engine wire harness and ECU/software). in large part, the performance difference comes from this trade off (more power and less MPGees with VTEC compared to VCM).

I don't have a lot of first hand experience with late model factory engine management so maybe someone else could chime in, but if the Acura ECU and wiring harness can be installed in the van without too much trouble, there's a good chance of this set up working.
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