5th gen motor in a 4th gen?
03-20-2012, 04:25 PM
#7
2001 VQ30DEK Swap: swaps right in and ecu should have no problem but you need a VTEC controller like the VAFC2 or a basic RPM Switch to open and close the variable manifold. The exhaust VQ30DEK camshaft is slightly more aggressive and the intake camshaft is less aggressive than the VQ30DE. The variable intake manifold itself flows better. Removing the butterfly in the variable intake will also give you gains and this means you won't need to run a RPM switch. The VQ30DEK could give you a good 20+ horsepower over the VQ30DE.
2002-3 VQ35DE Swap: long block + intake manifold is compatible but the entire timing system must be converted to the VQ30DE setup for your ECU to run it: sprockets, timing chain, timing covers, oil pan, coolant log, etc. This "tricks" the 3.0 ecu into thinking its a 3.0 liter stock motor but its really a 3.5 liter motor. The VQ35 has more displacement and more aggressive cams than the VQ30DE and should give you 50+ horsepower over the VQ30DE.
The VQ30DEK is a lot easier to do than the VQ35DE. You can just drop the DEK right in. You will need to remove the timing covers, oil pan, timing chains, sprockets, and then reinstall 3.0 stuff on the VQ35DE, which is a ton of work. Conversely, you could swap to a full 02-03 ecu and harness. This will give you variable intake cam timing and you will not need to do anything to the motor, it will drop right in like the DEK does. The wiring is not easy.
2002-3 VQ35DE Swap: long block + intake manifold is compatible but the entire timing system must be converted to the VQ30DE setup for your ECU to run it: sprockets, timing chain, timing covers, oil pan, coolant log, etc. This "tricks" the 3.0 ecu into thinking its a 3.0 liter stock motor but its really a 3.5 liter motor. The VQ35 has more displacement and more aggressive cams than the VQ30DE and should give you 50+ horsepower over the VQ30DE.
The VQ30DEK is a lot easier to do than the VQ35DE. You can just drop the DEK right in. You will need to remove the timing covers, oil pan, timing chains, sprockets, and then reinstall 3.0 stuff on the VQ35DE, which is a ton of work. Conversely, you could swap to a full 02-03 ecu and harness. This will give you variable intake cam timing and you will not need to do anything to the motor, it will drop right in like the DEK does. The wiring is not easy.
Last edited by ampire; 03-20-2012 at 04:32 PM.
03-21-2012, 01:10 AM
#9
2001 VQ30DEK Swap: swaps right in and ecu should have no problem but you need a VTEC controller like the VAFC2 or a basic RPM Switch to open and close the variable manifold. The exhaust VQ30DEK camshaft is slightly more aggressive and the intake camshaft is less aggressive than the VQ30DE. The variable intake manifold itself flows better. Removing the butterfly in the variable intake will also give you gains and this means you won't need to run a RPM switch. The VQ30DEK could give you a good 20+ horsepower over the VQ30DE.
2002-3 VQ35DE Swap: long block + intake manifold is compatible but the entire timing system must be converted to the VQ30DE setup for your ECU to run it: sprockets, timing chain, timing covers, oil pan, coolant log, etc. This "tricks" the 3.0 ecu into thinking its a 3.0 liter stock motor but its really a 3.5 liter motor. The VQ35 has more displacement and more aggressive cams than the VQ30DE and should give you 50+ horsepower over the VQ30DE.
The VQ30DEK is a lot easier to do than the VQ35DE. You can just drop the DEK right in. You will need to remove the timing covers, oil pan, timing chains, sprockets, and then reinstall 3.0 stuff on the VQ35DE, which is a ton of work. Conversely, you could swap to a full 02-03 ecu and harness. This will give you variable intake cam timing and you will not need to do anything to the motor, it will drop right in like the DEK does. The wiring is not easy.
2002-3 VQ35DE Swap: long block + intake manifold is compatible but the entire timing system must be converted to the VQ30DE setup for your ECU to run it: sprockets, timing chain, timing covers, oil pan, coolant log, etc. This "tricks" the 3.0 ecu into thinking its a 3.0 liter stock motor but its really a 3.5 liter motor. The VQ35 has more displacement and more aggressive cams than the VQ30DE and should give you 50+ horsepower over the VQ30DE.
The VQ30DEK is a lot easier to do than the VQ35DE. You can just drop the DEK right in. You will need to remove the timing covers, oil pan, timing chains, sprockets, and then reinstall 3.0 stuff on the VQ35DE, which is a ton of work. Conversely, you could swap to a full 02-03 ecu and harness. This will give you variable intake cam timing and you will not need to do anything to the motor, it will drop right in like the DEK does. The wiring is not easy.
03-21-2012, 01:28 AM
#10
just to add to everything. You will run richer due to the larger de-k injectors. And you will need the injector pig tails off the 00-01 maxima as well. You may have to swap out the exhaust manifolds as well. But other then that its pretty cut and dry. Search 00vi for some more specfics.
03-21-2012, 04:30 AM
#11
Dek is cheaper and more reliable swap imo.... pending previous owner and maintenance obviously... but overall a dek is farrrr easier to swap in to a 4th gen than a 3.5 and to the OP. As stated fuel injector clips will be needed and while you got the motor out you will also need a pigtail from the mass air flow sensor too i believe for the dek mass air sensor as it is different than the de engines maf.. aside from that i believe most everything else is plug n play.. do buy an rpm switch for the manifold though and make sure to check the vias cup before installing the engine as they tend to break easy in the dek engine
03-21-2012, 06:11 AM
#12
Dek is cheaper and more reliable swap imo.... pending previous owner and maintenance obviously... but overall a dek is farrrr easier to swap in to a 4th gen than a 3.5 and to the OP. As stated fuel injector clips will be needed and while you got the motor out you will also need a pigtail from the mass air flow sensor too i believe for the dek mass air sensor as it is different than the de engines maf.. aside from that i believe most everything else is plug n play.. do buy an rpm switch for the manifold though and make sure to check the vias cup before installing the engine as they tend to break easy in the dek engine
If your vq30de is in still in good condition i would just do a 00vi swap vs a de-k swap. But if you need to swap out the whole engine then the de-k would be a good choice if the price is right.
+1 on vias cup.
Last edited by Product_Of_Korea; 03-21-2012 at 06:15 AM.
03-21-2012, 08:04 AM
#13
03-21-2012, 08:53 AM
#14
and
1) the 3.5s are currently 2-3x the cost of the VQ30DEK
2) changing to 3.0 timing is an enormous pain in the *** if you are not a professional mechanic.
3) not much info out yet on an easy conversion full swap harness that will let you run a stock VQ35DE without the hybrid timing, sergofast has been working on one for like a year now
1) the 3.5s are currently 2-3x the cost of the VQ30DEK
2) changing to 3.0 timing is an enormous pain in the *** if you are not a professional mechanic.
3) not much info out yet on an easy conversion full swap harness that will let you run a stock VQ35DE without the hybrid timing, sergofast has been working on one for like a year now
03-21-2012, 10:13 AM
#15
Actually the 3.5 isnt that much more,average price for a dek around me is 500-800 and a 3.5 is 1000-1600 but the timing stuff is a PITA if you dont know what youre doing,and theres actually ALOT of info regarding the full harness swap if you do a little searching the 3.5 hybrid is the easiest and fastest to do,done right with harness and all is ALOT more time consuming and requires ripping the dash apart and main harness etc etc etc....i say stay with dek
03-21-2012, 10:48 AM
#16
de-k will run a a32 maf no need to put in the a33 maf unless your doing the stock 5th airbox, im not sure if the a32 maf will go with the a33 airbox components since i never ran the stock a33 airbox.
If your vq30de is in still in good condition i would just do a 00vi swap vs a de-k swap. But if you need to swap out the whole engine then the de-k would be a good choice if the price is right.
+1 on vias cup.
If your vq30de is in still in good condition i would just do a 00vi swap vs a de-k swap. But if you need to swap out the whole engine then the de-k would be a good choice if the price is right.
+1 on vias cup.
03-22-2012, 05:47 PM
#17
Newbie - Just Registered
Join Date: Mar 2012
Posts: 7
I've been lookin into getting a maxima and I was gonna get a 5.5 gen again. But I've been seeing the 4th gen with the 3.5. I was just wondering before I buy the car is it really worth all the trouble and $$$$ to swap in the 3.5? I've seen videos on YouTube of all motor 4th gens with the swap beating the 5.5 gens with turbo. But on YouTube you see a lot of stuff. I was wondering is it really that fast just with the swap???
03-22-2012, 07:12 PM
#20
and
1) the 3.5s are currently 2-3x the cost of the VQ30DEK
2) changing to 3.0 timing is an enormous pain in the *** if you are not a professional mechanic.
3) not much info out yet on an easy conversion full swap harness that will let you run a stock VQ35DE without the hybrid timing, sergofast has been working on one for like a year now
1) the 3.5s are currently 2-3x the cost of the VQ30DEK
2) changing to 3.0 timing is an enormous pain in the *** if you are not a professional mechanic.
3) not much info out yet on an easy conversion full swap harness that will let you run a stock VQ35DE without the hybrid timing, sergofast has been working on one for like a year now
I got my 3.5 for $500 bucks with 55k on it. even if that is double what you can get a 3.0 for....its worth it!
If you check out my thread 99% of the info needed to finish the harness is right there....its a bit overwhelming at first but in all honesty....its not that hard AT all... Ive got it all layed out, and combined with Eng92s chart if you just start reading the FSM on the pages I did all the leg work and spoon feed to the forum....it will start clicking.
As soon as I get it 100% completed Im going to clean up that entire thread and really spell it out. Im taking my time and documenting it all real good so that I can share it with the forum. Here is where Im at now. I only have about 20 wires that I have to tap into on the 4th gen harness on one universal connector and after that it all is plug and play. No 3.0 timing swap or dismantling a perfectly good 3.5 and I get all the torque and variable cams along with VIAS. My engine will run with all the reliability and stock HP/torque of a 02-03 VQ35 maxima in the lightweight frame of my 4th gen
Oh....and for the record. Im going to take a picture of EVERY single dash tap I have to make on the 4th gen. Show everyone what plug it comes from and where under the dash. That way so anyone else that wants to turn their 4th gen into a 5.5gen can do so with ease...a true write up.
http://forums.maxima.org/all-motor/6...p-harness.html
Last edited by sergofast; 03-22-2012 at 07:16 PM.
03-22-2012, 07:39 PM
#21
Hey hey hey....actually I truly have only been working on it for about 3 months....I just took a 9-12 month break because I was lazy
I got my 3.5 for $500 bucks with 55k on it. even if that is double what you can get a 3.0 for....its worth it!
If you check out my thread 99% of the info needed to finish the harness is right there....its a bit overwhelming at first but in all honesty....its not that hard AT all... Ive got it all layed out, and combined with Eng92s chart if you just start reading the FSM on the pages I did all the leg work and spoon feed to the forum....it will start clicking.
As soon as I get it 100% completed Im going to clean up that entire thread and really spell it out. Im taking my time and documenting it all real good so that I can share it with the forum. Here is where Im at now. I only have about 20 wires that I have to tap into on the 4th gen harness on one universal connector and after that it all is plug and play. No 3.0 timing swap or dismantling a perfectly good 3.5 and I get all the torque and variable cams along with VIAS. My engine will run with all the reliability and stock HP/torque of a 02-03 VQ35 maxima in the lightweight frame of my 4th gen
Oh....and for the record. Im going to take a picture of EVERY single dash tap I have to make on the 4th gen. Show everyone what plug it comes from and where under the dash. That way so anyone else that wants to turn their 4th gen into a 5.5gen can do so with ease...a true write up.
http://forums.maxima.org/all-motor/6...p-harness.html
I got my 3.5 for $500 bucks with 55k on it. even if that is double what you can get a 3.0 for....its worth it!
If you check out my thread 99% of the info needed to finish the harness is right there....its a bit overwhelming at first but in all honesty....its not that hard AT all... Ive got it all layed out, and combined with Eng92s chart if you just start reading the FSM on the pages I did all the leg work and spoon feed to the forum....it will start clicking.
As soon as I get it 100% completed Im going to clean up that entire thread and really spell it out. Im taking my time and documenting it all real good so that I can share it with the forum. Here is where Im at now. I only have about 20 wires that I have to tap into on the 4th gen harness on one universal connector and after that it all is plug and play. No 3.0 timing swap or dismantling a perfectly good 3.5 and I get all the torque and variable cams along with VIAS. My engine will run with all the reliability and stock HP/torque of a 02-03 VQ35 maxima in the lightweight frame of my 4th gen
Oh....and for the record. Im going to take a picture of EVERY single dash tap I have to make on the 4th gen. Show everyone what plug it comes from and where under the dash. That way so anyone else that wants to turn their 4th gen into a 5.5gen can do so with ease...a true write up.
http://forums.maxima.org/all-motor/6...p-harness.html
NICE...
03-23-2012, 03:29 AM
#22
Newbie - Just Registered
Join Date: Mar 2012
Posts: 7
Just had to ask cuz unless the site I looked at was wrong (guessing it is) the weight difference is less than 400lbs. That's just like 2 passengers so I can't picture it being that much faster.
Last edited by XZVR; 03-23-2012 at 03:44 AM.
03-23-2012, 06:47 AM
#23
Think about it though...its heavier for a reason...bigger displacement...more power...do the math
03-23-2012, 07:16 AM
#24
Think about it VQ35 has VTC (variable timing) and VIAS (Variable Intake). A stock VQ30 has neither. Both of these things allow are smother power band across the RPM and are much more technolgically advanced than a VQ30.
Last edited by sergofast; 03-23-2012 at 07:40 AM. Reason: edited because Im a moron sometimes.... :hat:
03-23-2012, 07:22 AM
#25
03-23-2012, 07:29 AM
#26
03-23-2012, 07:33 AM
#27
were talking vq30 and vq35, nothing about VG or VE or anything else.
Putting a VQ35DE engine in a car made for a VQ30 WILL MAKE IT HAUL MORE @SS THAN A VQ30. Plain and simple. Which is all I'm saying. My comment that was quoted was for the question of the 400 lbs difference... that 400lbs is stock 4th gen to stock 5.5, which STILL makes the point that the vq35 was faaster, to answer this question:
Putting a VQ35DE engine in a car made for a VQ30 WILL MAKE IT HAUL MORE @SS THAN A VQ30. Plain and simple. Which is all I'm saying. My comment that was quoted was for the question of the 400 lbs difference... that 400lbs is stock 4th gen to stock 5.5, which STILL makes the point that the vq35 was faaster, to answer this question:
I was wondering is it really that fast just with the swap???
03-23-2012, 07:36 AM
#29
5th gen is VQ30 DE-K
5.5gen is VQ35DE
VG and VE are 3rd gen motors.
03-23-2012, 07:39 AM
#30
03-23-2012, 07:41 AM
#31
were talking vq30 and vq35, nothing about VG or VE or anything else.
Putting a VQ35DE engine in a car made for a VQ30 WILL MAKE IT HAUL MORE @SS THAN A VQ30. Plain and simple. Which is all I'm saying. My comment that was quoted was for the question of the 400 lbs difference... that 400lbs is stock 4th gen to stock 5.5, which STILL makes the point that the vq35 was faaster, to answer this question:
Putting a VQ35DE engine in a car made for a VQ30 WILL MAKE IT HAUL MORE @SS THAN A VQ30. Plain and simple. Which is all I'm saying. My comment that was quoted was for the question of the 400 lbs difference... that 400lbs is stock 4th gen to stock 5.5, which STILL makes the point that the vq35 was faaster, to answer this question:
03-23-2012, 10:05 AM
#32
Newbie - Just Registered
Join Date: Mar 2012
Posts: 7
Putting a VQ35DE engine in a car made for a VQ30 WILL MAKE IT HAUL MORE @SS THAN A VQ30. Plain and simple. Which is all I'm saying. My comment that was quoted was for the question of the 400 lbs difference... that 400lbs is stock 4th gen to stock 5.5, which STILL makes the point that the vq35 was faaster, to answer this question:
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