Supercharged/Turbocharged The increase in air/fuel pressure above atmospheric pressure in the intake system caused by the action of a supercharger or turbocharger attached to an engine.

Motor swap

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Old Mar 9, 2005 | 09:52 AM
  #1  
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Motor swap

Well mah motor is pretty much gone due to flood water sucked in by the S/C. my next quest is to look for a motor that will be compatible with my S/C( still going blown staying faithful to my V2). my question is will my S/C be compatible with the 99-01. common sense is the newer the motor is ...the lesser the miles( not always true but commonly)...Can I also swap out the bottom end and S/C it also...and do I have to change the tranny or can I keep it..
Can someone give some ideas to mynext venture.
thanx
Old Mar 9, 2005 | 07:41 PM
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id say buy a 95-99 motor and just throw it in with your existing trans. you wont run into problems that way and your fi setup will still work. seems like the simplest solution to me... when i put in my new motor i got it from www.cherry-auto.com and it was $630 shipped for a 98 with 33k miles. a quick search i just did has a 98 motor with 1k miles on it for a hair under $800 shipped to your zip code... some of their prices are good (like that) and some suck (for instance $4k for a z32 motor... n: )
Old Mar 9, 2005 | 09:28 PM
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^^^^^ good advice. www.car-parts.com has motors too.
Old Mar 10, 2005 | 06:45 PM
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i have motors also.. about 15 95-99 and probably 5 or 6 2000-2001.
Old Mar 11, 2005 | 08:39 PM
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i installed a 2001 de-k in my max...i didnt use the VI though...i will guide you through it if that is the route you go.
Old Mar 12, 2005 | 07:50 PM
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you can drop a VQ from 95-01, all you have to do is move the vacuum sources from your current engine into the one your putting in. I know I dropped a 95 VQ into my 98. I did have to remove all the vacuum hosing and rails to the 95 VQ. No CEL after I fired it up. But if you drop the same year engine then its a straight swap!
Old Mar 13, 2005 | 07:17 AM
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actually you can only do a direct swap in the years from 95-99. in those years nissan used the VQ30DE motor in all maximas. in 2000-2001 nissan slightly redesigned the motor and it is competely diffrent. its called the VQ30DE-K motor. the entire intake plumming is diffrent since it has a VI and the block is diffrent. along w/ the valve covers, coil packs, exhaust cam is slightly bigger and the vaccuum lines are all diffrent. along w/ some other little things
Old Mar 13, 2005 | 08:06 AM
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but if you do it the way jaime says, you wont have any codes thrown
Old Mar 13, 2005 | 08:47 AM
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Originally Posted by slimer
but if you do it the way jaime says, you wont have any codes thrown


he dont know dont worry about it, 95-96 motors are not drop in motors into 97-98 maxes and 99s are cali spec. So the statement is wrong, 95-99 are not all drop ins just cause they are VQ30s. Thats why Hal said if you dont know what you are doing and just want to drop in the motor to get the same year you have. The 5th gen motor is still a VQ30, just remove some the crap he just named and it will fit into a 4th gen. Someone already did it. NO CEL. Just ensure you know what you are doing.

Hell people are dropping 3.5s into 4th gens. Hopefully someone will step up to the plate here in Atl and do just that
Old Mar 13, 2005 | 12:52 PM
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i think everyone is losing what i am trying to say here...aside from all the technical stuff lets concentrate on the question. you cannot 'just remove some crap' and drop the motor in. the block is diffrent. if you had 2 engines side by side you would notice alot of difrences. if you want i will go into detail about them.


1. the block on the de-k motor has a coolant passage that comes out of it underneath the lower intake manifold. this means that you have to use the coolant pipe that connects from the left side head to the right side from the de-k motor. however if you notice on that same coolant pipe all your vaccuum lines on the old vq are bolted there. so in turn you have to make a bracket to hold the vacuum lines since the coolant pipe from the de-k doesnt have one. you also have to reroute and reconfigure the lengths of all those vaccuum lines.

2. reconfigure your heater core coolant hoses also due to the diffrent style coolant pipe.

3. you must swap the rear valve cover due to a diffrent angle and diffrent coil packs.
(the front one you can keep from the de-k if you want...i did)

4. the knock sensor location will be diffrent... the de-k sensor will not plug into a 95-99 wire harness...also location is diffrent because the de-k extra coolant passage is located where the 95-99 knock sensor is.

there where some other little things that i did that i cant think of off the top of my head but if you actually do the swap you can figure it out. like relocating some of the sensors that are affiliated w/ those vaccuum lines and changing the length and angle of the hose that ventilates the rear valve cover to the front one.
Old Mar 13, 2005 | 04:11 PM
  #11  
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i have a 98 max i just purchased an 01 ae 5 speed motor it doesnt have the vi on it or lower intake manifold parts i was goin to use my current mevi on the 01 motor and parts what else should i watch out when im swapin this into my 98?
Old Mar 13, 2005 | 11:15 PM
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thats actually an awsome idea...first off because the de-k motor has a bigger exhaust cam so the mevi will actually be more functional now. in fact,i believe one of the reasons that nissan went w/ the bigger exhaust cam in 00-01 is because of the vi it came w/ from the factory.


http://forums.maxima.org/showthread....ight=cam+facts


i dont know whether or not you can use the de-k rear valve cover w/ the mevi. i couldnt use it w/ the stock intake manifold cause the height of the valve cover was touching the intake. it would be sweet if you could because then you can use the coil packs from the de-k also. the coilpacks will plug rite into your 98 maxima wire harness. no matter if you cant use the rear valve cover cause the old one will bolt rite on anyway.the biggest obstacle is working around that coolant pipe. anyone who has put a knock sensor in their 4th gen maxima knows that there is a big gap between the engine block and the lower intake (even though you cant reach your hand down there to get that sucker out cause all the coolant and vucuum hoses are in the way). on the de-k motor this is the exact location that the extra coolant pipe comes up. that same pipe makes a sharp 90 degree angle and connects to the coolant pipe between the 2 heads. since you dont want to block that coolant passage off you need to use the pipe assembly from the de-k motor. but if you notice the coolant passage on the 95-99 engines you will see that a majority of vacuum lines,vacuum sensors and your heater core hoses all are bolted or somehow fastened to that pipe. so you need to fabricate some brackets and reroute your vacuum hoses. i am having someone post some pics for me in the next week or two and you will see how i did it. but dont be discouraged by the little extra work because its really not that hard to do if you got a little common sense. luckily i work on cars for a living so it was easy for me but if you live close by maybe i will take a stop up and show you first hand if you get stuck.

by the way...you wont get any check engine lights from the swap. i havent go any.
Old Mar 14, 2005 | 01:31 AM
  #13  
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ok so im gonan change the rear valve cover and keep the same coil packs and install me mevi with aftermarket injectors what if i use the coolant stuff of my 98 motor
also do i have to use my 98 knock sensor right
Old Mar 14, 2005 | 06:23 AM
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you cant use your coolant stuff unless you block the coolant passage off on the de-k motor which then would cause it to overheat and blow up. i dont think you understand what i am saying when i say that the ENGINE BLOCK IS DIFFRENT. the extra coolant passage comes directly out of the block. you have to use it. you cant just remove it because it is part of the engine block. thats why you cant use the stock location for the knock sensor...because it doesnt exist on the de-k.thge extra coolant passage on the de-k is rite where the knock sensor is on a 95-99vq. your new knock sensor location will be in front of that same coolant passage...no big deal...works just as well there as it did in the middle of the block.
Old Mar 14, 2005 | 06:34 AM
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oh ok yea i see what you mean
can u get pictures and i can see how you did it before i attempt to do it on saturday thanks
Old Mar 15, 2005 | 11:47 AM
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thanx for the input guys...i am gonna drop in a 99 off an infiniti.i would put in a de-k, but I want to minimize additional labor..my concern is can I still use my S/C 95-98 on later years?
Old Mar 15, 2005 | 06:03 PM
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thats a nice color maxima...pretty rare probaly...i like it
Old Mar 15, 2005 | 07:55 PM
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tae you will have to swap your egr system over. plus your lower manifold will also have to be swapped out(if the motor is a cali spec). along with the heater pipes on the driver side of the motor.
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