I dont know if its been asked before but does anyone know the specs of the VQ30DET. Like does it have a variable intake like the 5th gen max? What kind of boost can the internals handle? I know the VQ30 in the max can handle 12 psi even 13 but since the DEt is made for turbo how much more boost?

 

It won't fit into a FWD maxima.

 

I know it's RWD. I want use the internals or intake manifold maybe.
Here are some pics

 

 

I see that MAF is the same as ours?

 

Damn that engine looks sexy :P

 

I'm pretty certain it doesn't have any sort of VI system. You'd be hard pressed to find any OEM turbo/SC setup on the market that have a VI setup because forced induction really doesn't benefit VI systems because the intake manifolds are designed for boost.

 

MAkes sense, this has nothing much to do with Maximas, but has a similar concept. Tried swapping out a S/C from an L67 to an L36, and wow, the IM was completely different . . .no ports just a big square hole where the S/C sat. . .which required head modification to fit it, diff. comp ratios so on and so forth. .

 

That's because the main object of a manifold on a force inducted car is to cram as much air as it can into the heads. If you ever notice, most of the top fuel turbo drag cars usually have a giant box type manifold sitting on top of the motor. No need for individual ports that will restrict air flow.

 

a search on google could actually yield you the answer:

Max.power (Net), kw(PS)/rpm 270 ps (198.59 kw) / 6000 rpm
Max.torque(Net), N*m(kg*m)/rpm 37.5 kg*m (367.75 N*m) / 3600 rpm
Compression ratio: 9:1
Bore 93 mm
Stroke 73.3 mm

 

Been there done the swap internals ran fine all day at 12 psi and did 238whp with a to4e at 4200 when it broke loose on the dyno (no tow hooks to strap down right) check out my pics on www.turbomaxima.com

 

Those spec's are easy to get. I was wondering about how much boost the DET internals can hold.
Also Dave B why is it not good to have VI with F/I?

 

I didn't really say it was bad to have the VI with F/I, but all OEM intake manifolds are designed for boost. F/I creates it's own atmosphere so tuning intake runners for lowend torque and high rpm power really isn't needed. Most OEM F/I applications run very short intake runners and cars with twin screw blowers (03+ Cobra, GMs 3.8S, AMG Benz, etc) effectively have the blower as the intake manifold.

IMO, I'd never run a VI setup with a turbo or SC Maxima. I know it does make extra high rpm power, but there can be a big risk because when those butterfly valves open at 5000rpms+, more air is available. If you aren't running a good fuel setup that extra air can cause a lean condition which can spell the end of your motor.

 

is it bad for 00-01 guys to do boost then?

 

there is really no equation to how much any motor can hold. Its all about the tuning and fuel setup. mardigras is running 14 psi on stock internals. Turbo95max's motor blew up at 21 psi

 

What Intake manifold would be the best if i were to go turbo?USIM, MEVI, 5th Gen VI or DET Manifold.
Also has anyone every used the DET manifold before?

 

lots of mods needed cause it hits the hood

 

To convert that to American numbers:
266 HP
271 ft-lb

 

The new VQ30DET in the Gloria put out 206kW（280PS）/6000rpm
387N・m（39.5kgm）/3600rpm. Which is the limit in the japan's laws for Horsepower. The real numbers are around 300 HP. Plus they have the NEO technology.


Is it worth it?

 

no its too long of a process you would be better off with a 3.5 with 8.5to1 cp pistons which would be about the same price.

 

U mean using the 3.5 motor out of the 5.5 gen?

 

There are a quite a few of us boosted folks with the VI. No one seems to have blown an engine that can be attributed to the VI yet.

I have accumulated many datalogged runs measuring afr with a wideband O2 sensor. I have seen no evidence of leaning out at the butterfly opening rpm. There is some afr variation as the rpm builds up, but there is no place where you can decisively locate the butterflies opening. But I have what you would probably call a good fuel setup, being airflow referenced rather than boost referenced.

Most boosted folks with boost referenced fuel systems are running at 12.5:1 or lower in order to suppress detonation at high rpm (>6 krpm), so there is some safety margin built in at the ~5200 rpm set point to handle extra air from the VI opening.

 

NEO technology has to do with emissions...

 

NEO VVL
http://forums.maxima.org/showthread.php?t=262261

 

is that the same engine thats going to be used in the U.S. version of the skyline GTR?

 

NEO and VVL are two separate things.
All Nissan engines after a certain year are considered "NEO." NEO stands for NISSAN ECOLOGY ORIENTED. Like I said, it has to do with emissions.
VVL is the variable valve timing designed by Nissan. Not all NEO engines have VVL.

 

maybe the future max would come with a vq40det and we can slide it around turns while laughing all those stuff bmw owners

 

What does a VQ30DET cost?

I mean, wouldn't a set of low CR pistons and forged rods be cheaper AND stronger?

 

yup exactly. just do a vq35 swap from a 5.5 gen.

 

Indeed it does.

 

I don't care for the 3.5 out of the 5.5 gen. Mainly because of the VTC's.

I know about that NEO is just emissions but NEO just Sounds kind of cool.

On ebay the VQ30DET goes for $ 1000. A friend in my car club is going to japan so he is going to see how cheap he can get the engine there.

 

I don't need the whole engine, just the pistons/rods. I don't think the DET crank is needed, since I believe Tilley has used DE rods with the DET crank.

 

det rod journals are about 8 mm larger than de so you would need crank rods and pistons or just det pistons

 

Thanks......

So the DET pistons will work with DE rods, correct?

 

Thats correct

 

Don't shoot me, but will DE piston rings work on DET pistons?

I don't see why not, but just wondering.

 

not sure but I think they will.

 

The AMGs still have a 3 stage tuned resonnance intake runner....

 

Hopefully I will get a chance to see how much boost these DET pistons can Handle I i will be turning up the boost to 14psi by the end of the week. once I get my new injectors I will turn the boost up even more

 

Where did you get DET pistons?