Finally got to the dyno on Saturday (18th). Things went good though I was hoping for a little more HP. Here's the results:

'00 Variable Intake-Run Conditions: 65.18 deg. / 29.31 press / 20% Humidity
192.51 HP // 192.55 TQ

With my MEVI my #'s were 183.9 HP // 181.1 TQ. Conditions for those runs were 71.4 deg / 29.37 press / 24% humidity.

With the '00 VI set-up, I gained 8.61 peak HP and 11.45 peak TQ.

Pics of the dyno sheet and some HP/TQ comparisons I did on a spreadsheet are on page 3 of my homepage. I don't have a scanner so I had to take pics of them with my digital camera. It's hard to see the colors on the comparisons but the the top line is the '00 VI+JWT, the one under it is the MEVI+JWT, and the one that falls on it's face is the OEM manifold w/o JWT ECU.

 

Excellent work! Looks like I'll be on the prowl for a '00 MEVI now... Exactly how much custom fabrication is required to mount it?

-Cyrus

 

Depends on a couple different things. How you do your IACV, EGR or no EGR, and which TB you use. You can get by with no fabricating at all if you run no IACV and use the throttle plate to control idle and swap the EGR pipe that goes up to the manifold with the '00 pipe. Other than that it's just a matter of swapping injector plugs and getting rid of the first regulator on the '00 fuel rail and making a small plate to cover the IACV hole on the TB.

 

Wow....finally. Good work and thanks for that info man.

 

Funny how a few years a go, we didn't think it would fit under the hood.

Great work man.

 

I think you need another switchover posint since it dips in the middle there. I don't have JWT ECU, but I expect the same results. Man it's a huge difference between the stock and 00vi, I am gonna love it.

 

very good comparisson. I would think the USIM with the JWT would have similar gains thorugh out the entire range. I mean a 5-10 HP increase over the existing curve? That would put it at par with the 2K VI until the (5200?) switch over. Then the USIM is just left in the dust. Its also nice to see the curves of the MEVI and 2K VI are very similar. This means people with the MEVI shouldnt just go out and install the 2K VI since they have nice gains already. StephenMax made the same change with similar gains. Only difference is he is boosted. Very good upgrade as long as the power valve doesnt break.

 

Dave B was at the shop to see the runs and we were discussing that dip. The curve seems to level off and just as it starts to lose power, the valve opens and it jumps back to life. I had the switchover set at 5200 so if I dyno again, I'll maybe try one at 4900, 5k, 5100 and see if it goes away without losing power overall. The dyno tech did the first two runs really close together and I didn't have a chance to change anything. I didn't want to waste my last run if it did lose power.

 

Got actual run files??

 

awesome. can't wait to get mine on.

 

Almost 200HP NA that's what I want!

 

Should have mine on after Christmas

 

Anyone have a write up

 

I have always though the 00VI was cooler, since it is more "factory". Good to see that it actually provides bigger gains than the MEVI, especially since the MEVI provides great gains already. Another thing to add to my future mod list.

 

I ran my 13.8 with 4700 switchover,tried the 5000 range and went slower.

 

Not trying to start an MEVI debate.....but how is the 00VI more "factory" than an MEVI.

 

I have the regular chart and I have a breakdown of HP/TQ/AF in each RPM in 100 rpm increments for each of the 3 pulls.

 

And remember he's an auto.

 

I should have mine on before Christmas

 

I am glad we have some more defintive proof of the gains. Now all we need is to get the -K IM down to a science like the MEVI swap is now. I had enough set backs with my recent MEVI install with the awesome write ups and information and no custom fabrication. Most were just problems getting to bolts, getting things on or off, and my summit rpm switch failing since I wired it up wrong at first. If we can get some write ups, pics, and better idea of what is needed this may become as common as the MEVI.

 

Because it comes on a Maxima stock in the USA and says Nissan on it.

 

Seems like the 00VI is the hot topic these days.

And yes, the 00VI is no more "factory" than the MEVI is. The MEVI came factory in cars also.

 

Yeah, overseas and not in the USA.

 

It is great to see some proof finally! I really need to save my dollars and buy an 00 VI now. What really makes me excited almost 200 at the wheels and your an auto. Gives hope for my auto tranny.

 

That doesn't make them any less "factory"

anyways

Anyone besides Krismax have the 00VI with an ECU??

 

I do, but with a 4th gen lower IM and boosted. JWT ecu.

http://forums.maxima.org/showthread....2&page=1&pp=30

 

Your Maxima was not built in the USA and neither was the 00VI or MEVI. So the country has nothing to do with it. "Factory" implies it was manufactured by the original manufacturer for a particular application. MEVI is an original equipment part made specifically for a VQ30DE Maxima/I30/Cefiro/QX....00VI was not.

But this is a really stupid discussion that I started so forget it.

Way to go StephenMax!

 

I think the DEK is a sweet setup and the power it makes is impressive, I just hope that all you that are going to do the swap are aware of how much more involved it is to install. The MEVI simply bolts on and everything goes back where it's suppose to. With the DEK manifold you'll have to determine how and where you'll mount the IACV, EGR, and what TB you want to use. You also have to swap out fuel rails, injectors, and the fuel pressure regulator. You'll also have to cut your fuel injector wiring harness and solder in the new injector wires. None of this stuff is terribly hard, but it is quite a bit more labor intensive and requires a lot more knowledge about automotive systems. My biggest fear would be getting the injectors seated correctly with pinching the O-rings and causing a leak and/or having a bad connection at the injector harness. Messing up just one of these parts could cause you a nightmare of trouble shooting and theirs a good chance you'd have to remove the manifold if it's one the back injectors.

Also, for guys in the NE or anywhere they do emissions testing, you won't be able to forego any emissions components like the EGR and such. I also believe Travis has some cold idle/surging issues with this setup because he isn't running the EGR. Is this right Travis?

The DEK manifold is also notrious for having the valve actuator fail and seize up. Once this happens, it's mu understanding there is little hope to fix it other than to swap on a new manifold.

 

No surging problems just dies right after I start it sometimes (when it's cold out). Most likely due to the bigger injectors dumping too much fuel in. I've been told to lower the base FP and it should cure the problem.

 

My way was the best you could keep your egr and stock IACV. And you could use your stock TB or any other kind if you like.
Also my lower intake manifold came intact there was no playing with injectors.

And from what my car felt like after and the gains i prob got were 15+whp and 15+wt ,my car felt like a stock USIM car had no problems and i did some lower IM things, wish i dynoed but i dont have i 00VI anymore i sold it.

 

I forgot you could simply swap the lower intake manifold. That would reduce you chances of fubaring an injector O-ring.

I have no doubt a 5 speed with the typical mods and ECU should put down 10whp/10wtq over the MEVI which means it should be capable of around 210whp/210wtq instead of the 200/200 most of the MEVI/JWT ECU guys are seeing. That additional power should be good for .1 and 1mph or so.

 

You won't damage injector o-rings because you don't remove the injectors from the fuel rail, no matter how you do it.

 

No, my way is best because I get to keep my 370 cc/min injectors.

Well, I'm being a little facetious here, but I don't think you can just come out and say any one way is best. Depends on what you want.

 

It doesn't matter which way you do, as long as it works.


I am also useing a block just like krismax, but that doesn't mean it's better.

 

Ill i meant was my way will pass emissions and has all the 4th gen evap and IACV all hooked up with no cels or trickery.

Dont get upset about me pwning boosted cars soon

 

I just noticed you didnt have the pathy TB on with these #'s?Did you have it on on the mevi dyno runs?

 

I've never had a Pathfinder TB. I used the '96 TB with the MEVI and the '00 TB with the '00 VI. I almost did the swap but thought the money would be better spent elswhere on the car.

Another thing I was pretty happy with was the A/F ratio throughout. Runs between 12.5-13.0 the whole run. This is the first mod I've ever done the wideband, on due to the larger injectors, but it seems the JWT ECU handles them nicely.