1996 se'

What do I need to do the swap.

The plan is im getting the DEK on friday. I still have to order all the fun stuff in the next few months then Ill be doing the work. The list of stuff im getting is:
New Nissan Alternator
Clutchnet 6 puck Clutch
Flywheel Plate from fidanza
ES Motor Mounts
Shorty headers from SS autochrome maybe and Exhaust Manifold gaskets.

I really wanna know from guys that have done this swap, what there experiences are on the swap. Im pretty set up with all the adaptor plates, IACV plate, Pathy TB plate, 4th gen lower manifold with 370's or 550's.

With the EGR valve work thats on teh DEK ?? Will all the crank sensors match up as well with the DEK to my wireing harness ?? How about the stupid stuff like the coolant temp sensor and stuff

Lets make this a discussion guys

-matt

 

No help, but let me know when you're getting rid of the lower IM and if it has the swirl valves...

 

i dont know much about the DEK .. why no 3.5vq ? ... mind telling me where you got your pathy tb ?

 

No 3.5 swap. I knew someone would ask. Too much of a hassle. The DEK seems much easier of a swap, less hassle, and Ill be left with a great product in the end. Plus, I found this DEK with 8,557 miles. I think the DEk is the most refined engine made by Nissan

I already have the Pathy TB from about 6 months ago when i bought it

-matt

 

awesome ... yes I do agree .. the DEK is a well built machine .. how much did you pay for the pathy tb and whered you get it ?

 

I think you should take a look at the thread I posted up in January about this in this forum. I was asking people whether I should do DEK or 3.5 swap. It seems that most people said that you will have the same problems on a 3.5 swap you would have in a DEK swap so they said you might as well go 3.5. Let me see if I could find the thread. Also, what is the difference between our engine and the DEK besides the VI?

 

http://forums.maxima.org/showthread.php?t=450002

Please see this thread.

 

no adapter needed for IACV
http://forums.maxima.org/showthread.php?t=463248

 

That still doesnt help the people using a 00' TB

 

for the 3.5 swap there are different issues reguarding ECUs and getting the cvt to work ....modifing cams to use the 3.0 cams in tth 3.5 heads....the a DE-K all u need to do for the most part is rewire for different injectors....i think u have to extend wires for the TPS sensor...or someting....and wire up an RPM switch for the VI but the 4th gen ECU will run the DE-K fine....and of course it all depends which TB u decide to go with

 

I hear what you are saying. But I feel for someone like Matty that is very experienced with Maxima's, he can o the work of changing the tiiming chain covers and drilling the cams and other small steps to get the 3.5 to work with the 4th gen ECU. Even with drilling the cams, he can have that done by Tilley for $50. Basically, I agree that it is more work, but the result of the 3.5 will be much greater. I guess everyone has there opinion. To be honest, after that thread I posted, I am still trying to decide which one I will do.

 

Why keep the 4th gen lower IM? If you switch to 550's just go with DW top feed's and you dont' have to do the work to swap over the 4th gen lower IM.

 

i am sure he can too...but like u said its more work and could eb more of a headache in the future if somethign were to go wrong....i was comtemplating them both as well i am i will prolly do the DE-K....for a few reasons....i dont need huge amounts of power because i dont drag race i just want more power for aut0-x....and i feel with the 3.5 and not having LSD i will have lots of unusable power....plus i cant afford to have my car down for more than a weekend and the DE-K is still a great motor and still capable of good numbers...but like u said its all in personal choice and opinion....and again i wont do either until i feel my 3.0 is about to go and i need to do a swap or i run into extra cash (riiiiiiight)

 

yea your screwed then, and need an adapter plate ...

 

Wait, I can't tell if yall are being sarcastic about the pf tb.

 

If matty went with the 3.5 he couldnt fit his blower onto it.

so 3.0+boost or 3.5 N/A.


no sarcasm.

http://forums.maxima.org/showthread.php?t=463248

but if you have swapped a PF TB this wont work, only with 5th gen TB.

 

you tard its the PF TB

 

Why not? The charge pipe would have to be modified slightly perhaps but that's about it.

 

If he is going to be using the VQ30 Timing cover, then it should bolt right back in, and just change the charge pipe like nismology was saying..

 

I have no doubt in my mind that the extra work involved in swapping in a 3.5 is well worth it. The extra 30+ hp and 30+ TQ over the DE-K is worth the few extra days of work

As for long term reliability, you shouldn't have any problems if you do everything correctly.

 

give me a sec. . .
+
You know I was going to say something about that, since he would need to reuse the 3.0 timing the blower just might be able to bolt up.

 

reading > me

missed the fact that it was the 5th gen IACV attached to the PF TB

 

The reasons I like the DEK is that it involves less work then the 3.5 motor. I dont feel like swiching out all the timing equipment with new stuff since all the stuff in my motor is 140K miles old. I would rather get this DEK, with the 8,000 miles, and put it in and have a nice refreshed motor, new 550's that Im getting, new alternator, clutch, headers. All the fun stuff and have a fri*in booste power house for the street. Having a 3.5 boosted, to me, there is alot of un-used power for the street.

3.5 land is just really unchartered waters to me. I like the DEK because of the compadability of the motor. Its exactly the DE with a few internal things changed. With 8,000 miles, how can I disagree

A DEK, Boosted, in a 4th gen, is perfect to me

-matt

 

Matty you should really consider it. I know the DEK is easier, but you may regret missing out on that extra torque

3.5L+12psi+Nismo cams= happy me

 

I from what i can tell so far( granted the engine isn't in the car yet) the piping shouldn't have to be changed at all as far as bends are concerned. The only variable for me is using the PF TB which requires the adapter plate. This may move the throttle body too far forward, but i will not know for sure till i get the motor in the car

 

If you were turbo then I would say just to with the 3.0 because of the ease. But with a SC it would be really nice to have that extra torque you miss out on from being SC

 

I am in the process of doing the DEK swap. I am almost done gathering all of the parts. Nobody has yet to answer Matty's Q's... I would like to know about the connections too. I would think the 99 cali would be a easy match to a cali 00DEK. I went with the DW 440cc injectors..(top feed)

 

Matty I too would suggest using the 5th gen lower.

As far as sensors, if you are re-using the 4th gen harness (which you should to go with the 4th gen ECU) then most things should match fine. There are a couple of exceptions though. IIRC The EGR and EVAP systems on the 4th gen are vacuum operated, but electronic on the 5th gen. Therefore, you might find it easier to swap the 4th gen stuff over onto the DEK. What you'd end up with would be very similar to doing just the manifold swaps only in that you'll likely have to custom mount the EVAP system and re-run some hoses etc. If you use the 5th gen lower you'll also have to replace your 4th gen injector connectors with 5th gen ones and you *may* have to extend a few other sensor wires such as the TPS etc, which is not hard to do.

Someone else who's done the entire engine swap can chime in more. I've only done the manifolds.

 

The reason I wanna keep the 4th gen lower is because the absonence of Swirl valves and I already have the 4th gen lower drilled and helicoiled and ill be getting 550's side fed injectors. I also wont need to change my injector clips either

-matt

 

Well you can get a LIM w/o the swirl valves or just take them out. But I can understand if you've already prepped the 4th gen etc you wouldn't want to bother. The other stuff still applies though.

 

Dandy,

Can you just use a DEK LIM, fuel rail, injectors, and injector clips on a 4G, ie no upper/valve cover/coil changes?

 

Are you thinking just in order to switch the injectors without swapping the UM? ie- leave the USIM upper in place (although I'm not sure why you wouldn't want to swap the upper too)?

 

4gen injector clips dont wotk on 5th gen injectors if i get what ur saying correct

 

That's not what he's saying...

 

Yes, what would be the easiest route to use 5G injectors on a 4G?

 

Well I think what you're proposing should work... not that I've done it of course. But IIRC the LIM's are the same height although the port matching may be off slightly with the 4th gen upper (but you could get that now too with the 4th gen lower and 5th gen upper depending on how good the installation is). It would mainly be just a matter of reworking the mounting holes on the 5th gen lower (kind of like doing the 4th gen lower, 5th gen upper in reverse).

Going from memory the only thing I'm not quite sure about is the position of the LIM front-to-back. Theoretically, if there were a difference the USIM upper might have to move forward or backward a bit which could cause some complications with the rear mounting brackets, EGR guide tube and coils. But I can't see it being a significant difference, if any.

Rewiring the injectors is cake, and then replace the damper with an off-rail fitting and you're done. Oh and relocate the 2 front engine grounds also. That should be it off the top of my head.

Still don't know why you wouldn't do the upper also if you were going to the trouble of doing the fuel rail and lower though. You don't HAVE to replace the valve cover and coils etc.

 

Just

and trying to understand this. I am thinking the DEK may be in my future sometime. My question is what is bad about the Swirl valves or the difference between that and the 4th gen set up.

 

NM, went searching and found what I was fishing for about the swirls.

 

Do any of the 4G lowers have the swirl valves, 1999 cali maybe?

 

Why would the 4G egr guide tube be affected?

StephenMax mentioned the same, but said otherwise the DEK LIM is plug-n-play.

This will be on a turbo car temporarily until hopefully a VQ35 can be swapped, so I'll just add more boost once VE starts to fall due to the USIM.