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Old 10-08-2013, 01:44 AM
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LimitedEditionZ
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Default hr swap?

Hey guys currently own a 350z 03 and it has high miles and im thinking when time comes I want to put a HR motor in it. I read a thread(only one I found) but the dude didn't finish his project. Has anyone done it or know anything about it? What will I need to change besides the obvious?

Thanks!
Old 10-08-2013, 02:11 AM
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superstuddc27
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not worth the swap
Old 10-08-2013, 02:12 AM
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LimitedEditionZ
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Originally Posted by superstuddc27
not worth the swap

Why do you say that? Just curious.
Old 10-08-2013, 03:36 AM
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xman2yman
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its more then swapping an engine in. You gotta do the wiring harness and everything that goes with it. might as well just go FI or LS if you are going to be spending so much money or sell it and buy a newer Z with HR already in which will hold its value alot better.
Old 10-08-2013, 04:14 AM
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LimitedEditionZ
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Alright I guess damn that really sucks thought it would be easy.
Old 10-08-2013, 04:23 AM
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2004Black350z
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Not easy. Lots of time and money
Old 10-08-2013, 04:24 AM
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Z33Garage
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Why not just put a newly built DE?
Old 10-08-2013, 04:27 AM
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Callmetony
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So you have to swap some harnesses, and perhaps consider swapping gearbox and clutch out as well depending on miles... I don't know why these people say don't do it. I'm sure you could get a decent HR from a totaled 2006+ Z for a good deal. If you're lucky you can find plenty of perfectly good bits at a local junk yard. Many people have been doing LS swaps successfully and while it is not as simple as legos, it certainly isn't impossible.

I don't think you should be discouraged from this!! I haven't performed an engine swap myself but will do some digging. First thing that comes to my mind is double air filter and inlet. not sure how mounting would work for that in a non-HR engine bay.
Old 10-08-2013, 04:53 AM
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travlee
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not some harness, the whole harness and ecu.... dont forget the hr engine is taller and wider
Old 10-08-2013, 05:12 AM
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350zchad
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Originally Posted by Callmetony
So you have to swap some harnesses, and perhaps consider swapping gearbox and clutch out as well depending on miles... I don't know why these people say don't do it. I'm sure you could get a decent HR from a totaled 2006+ Z for a good deal. If you're lucky you can find plenty of perfectly good bits at a local junk yard. Many people have been doing LS swaps successfully and while it is not as simple as legos, it certainly isn't impossible.

I don't think you should be discouraged from this!! I haven't performed an engine swap myself but will do some digging. First thing that comes to my mind is double air filter and inlet. not sure how mounting would work for that in a non-HR engine bay.
HR was 2007-2009
Old 10-08-2013, 05:18 AM
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LimitedEditionZ
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I have been doing research my self its quite a bit of money but not as much as going FI I don't think. I can get a used motor with 80k for $1500.00 that's not including the harness and ecu. I know I'd have to change the hood as well. How about the tranny?
Old 10-08-2013, 05:27 AM
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travlee
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revup in 06, i would swap the tranny so that it all matches
Old 10-08-2013, 05:35 AM
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JERRYM1993
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Why not just swap the revup de?
Old 10-08-2013, 05:48 AM
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travlee
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revup is known for burning oil
Old 10-08-2013, 06:01 AM
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Callmetony
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Originally Posted by travlee9374
not some harness, the whole harness and ecu.... dont forget the hr engine is taller and wider
Originally Posted by 350zchad
HR was 2007-2009
Right right. I slipped hard there, it's been a rough morning...

Everyone has pitched in good things to be aware of.

In regards to $1,500 for a HR VQ3.5 w/ 80k miles... that seems steep. I haven't done much research but if that is the case for just base block then I would stay away from the project.

Would be nice If you can find a totalled 2007+ Z. preferably with some serious rear end destruction. Then you can get as much of the drive train bits as possible....
Old 10-08-2013, 07:21 AM
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stuartc323
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Find a lower mileage DE engine and swap it, take current high mileage engine and rebuild it, or LS swap, these are your options OP
Old 10-08-2013, 07:36 AM
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Callmetony
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Originally Posted by stuartc323
Find a lower mileage DE engine and swap it, take current high mileage engine and rebuild it, or LS swap, these are your options OP


Do you have a decent garage and mechanical experience OP?
Old 10-08-2013, 07:37 AM
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Syner
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The gains are not worth the time, money, and headache.

As others have said: FI DE, or LS swap are your best options.
Old 10-08-2013, 09:05 AM
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What would I need for a DE swap?
Old 10-08-2013, 09:19 AM
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Originally Posted by LimitedEditionZ
What would I need for a DE swap?
The replacement engine and some tools. Your '03 already has a DE.


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