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> 3.3l Vs 3.8l Swap Update
v33sonata
post Sep 7 2008, 12:31 AM
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Well I just got access to the dealer only website and has everything I would want to know. Including part numbers and pix. after hour of looking Sonata and Azera engines I have found out the following:

The intake manifolds and intake systems (VIS) on the 3.3L and 3.8L are diffrent.
The ECU wiring harness are also diffrent.
The tranny's are the same 5AT

Now as for the intake and system I am not sure why they are diffrent maybe to fit under the hood?

For all I know the wiring harnesses may be diffrent in length or may be 100% diffrent. So the 3.3L harness may work and may not work? It seems by the pix the 3.8L harness may have more sensors? But when looking at the pix for the 3.3L AZERA the pix is the same but diffrent then the 3.3L SONATA?

I dont know any input guys?
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dogstar
post Sep 7 2008, 02:03 AM
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I don't have that info, so I can't give much input.
Would appreciate it if you feel like sharing :)

I know that most of the mechanical bits are the same or similar. Intakes I believe are different for low end torque and packaging, although there could be other reasons. I think the variable length intake runner system works differently on the Azera, and the 3.8 probably requires slightly more intake volume to run properly.
Harness' will be different part numbers because the cars are quite different in size and options. Pin-out just might be the same, but without seeing a pin-out diagram for the ECU it will be tough to tell.

I bet that you could get away with using the intake/throttle body/harness/sensors/ECU from a 3.3 on a 3.8 but it would be a labor intensive swap.
Much easier if you could just swap a 3.8 with harness and ECU into a sonata.
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v33sonata
post Sep 7 2008, 04:02 AM
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QUOTE(dogstar @ Sep 7 2008, 02:03 AM)
I don't have that info, so I can't give much input.
Would appreciate it if you feel like sharing :)

I know that most of the mechanical bits are the same or similar. Intakes I believe are different for low end torque and packaging, although there could be other reasons. I think the variable length intake runner system works differently on the Azera, and the 3.8 probably requires slightly more intake volume to run properly.
Harness' will be different part numbers because the cars are quite different in size and options. Pin-out just might be the same, but without seeing a pin-out diagram for the ECU it will be tough to tell.

I bet that you could get away with using the intake/throttle body/harness/sensors/ECU from a 3.3 on a 3.8 but it would be a labor intensive swap.
Much easier if you could just swap a 3.8 with harness and ECU into a sonata.
[right][snapback]188494[/snapback][/right]

I am mainly trying to swap the wiring harness. I have all diagrams but not very knowledgeable on how wiring works ect. My buddy recommended that I rent an azera and throw my putter in it and see whats happens. So that might be an idea. I have access to everything hyundai does so if you want to help me on this adventure i can snap screen shots ect and anyone can help me with researching it. Idealy i would liek to just drop the motor in and new ect and be happy. But with this intake I am not sure :(
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v33sonata
post Sep 7 2008, 04:14 AM
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Sonata ECU and intake w/ part numbers
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v33sonata
post Sep 7 2008, 04:30 AM
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Here are the current sonata ECU and Wiring harness pix and part numbers.
(IMG:http://i244.photobucket.com/albums/gg1/v33sonata/Sonataecu.jpg)
(IMG:http://i244.photobucket.com/albums/gg1/v33sonata/Sonataintake.jpg)




and here are the Azera 3.8L's

(IMG:http://i244.photobucket.com/albums/gg1/v33sonata/Azeraecu.jpg)
(IMG:http://i244.photobucket.com/albums/gg1/v33sonata/azeraintake.jpg)

any thoughts?
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dissip8
post Sep 7 2008, 01:56 PM
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I'm not seeing that huge of a difference...if I had the money I would go for it.
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v33sonata
post Sep 7 2008, 02:55 PM
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QUOTE(dissip8 @ Sep 7 2008, 01:56 PM)
I'm not seeing that huge of a difference...if I had the money I would go for it.
[right][snapback]188582[/snapback][/right]

For starters the intake on the 3.3L seems to have more connectors and sensors.
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thanox2
post Sep 7 2008, 04:54 PM
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Just bore the 3.3 to 3.8... bigger pistons etc... maybe it will cost less than swapping the thing.
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Claff
post Sep 7 2008, 06:44 PM
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Am I the only one who thinks this looks like a lot of work for very little benefit?
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v33sonata
post Sep 7 2008, 08:42 PM
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QUOTE(Claff @ Sep 7 2008, 06:44 PM)
Am I the only one who thinks this looks like a lot of work for very little benefit?
[right][snapback]188643[/snapback][/right]

yes cause its worth it.
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LilBean
post Sep 7 2008, 09:18 PM
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You're going to have to use the 3.8L harness AND ECU. If they weren't somehow different, they wouldn't have different ECUs. If you're going to do it, do it right so that you don't have weird issues.
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hugamuto
post Sep 7 2008, 09:35 PM
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wow im looking forward to seeing the results v33! I hope it goes well for you! :beer: Sonata with a 3.8 lambda, im estimating would do an under 6 sec run to 60 mph and quarter mile in 14.4 maybe? :57:
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nate704
post Sep 7 2008, 11:15 PM
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QUOTE(Claff @ Sep 7 2008, 07:44 PM)
Am I the only one who thinks this looks like a lot of work for very little benefit?
[right][snapback]188643[/snapback][/right]


you are not alone!
definitely not cost efficient!
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dogstar
post Sep 7 2008, 11:25 PM
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QUOTE(thanox2 @ Sep 7 2008, 02:54 PM)
Just bore the 3.3 to 3.8... bigger pistons etc... maybe it will cost less than swapping the thing.
[right][snapback]188610[/snapback][/right]


Boring would be easy. But try to buy new rods, crankshaft and pistons. No one makes them except Hyundai and they will not be cheap.
Much cheaper and easier to take a known good engine from a crashed Azera and just drop it in. Internal engine work is not a $1500 package in real life like it is in Gran Turismo :)


For the naysayers, how is it "not cost effective"??
No one makes a turbo or supercharger kit for our cars, and the Alpine supercharger kit (which wouldn't work anyway) costs considerably more than a salvage engine.

If you don't see the point in hot rodding a Sonata, fine.
But don't decry this as a bad idea without providing alternatives :whistling: :bwekk:
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dogstar
post Sep 7 2008, 11:36 PM
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So, I'm sitting here on msn talking to my fab guy and he posted the simplest solution of all....

Take your 3.8, rip it out of the donor car or wherever it is. Unplug the harness and toss it in the corner. Yank the intake off.
Drop it into your sonata's engine bay.
Install 3.3 intake on 3.8, plug harness in.
Start car and giggle.

The intake won't be much different in size, and should work pretty well, since the 3.3 and 3.8 share cylinder heads...
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nate704
post Sep 8 2008, 12:07 AM
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$2000-3000 for about 30-40 more hp?
no thank you.
:bwekk:
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v33sonata
post Sep 8 2008, 01:15 AM
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Dropping on the 3.3L intake is also an alternative. Being it is only 30hp increase I dont want to lose any due to changing out the intake. I brought up the same point to my friends when they said its not worth it. At this point unless I used nitrous I can't do anything else to increase power. I did find an azera motor for 1700 with 15k I am thinking I will offer him 2k for engine, ecu and harness shipped. So well see. I still cant do anything yet. waiting on my loan check it should be mailed next monday. BTW I would like to add the new genisses v6 both use the intake thats on the Azera. It must be a better set up.
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dogstar
post Sep 8 2008, 03:43 AM
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QUOTE(nate704 @ Sep 7 2008, 10:07 PM)
$2000-3000 for about 30-40 more hp?
no thank you.
:bwekk:
[right][snapback]188731[/snapback][/right]


Where else are you going to get 30-40hp? :bwekk:


Nitrous is cool, but