So this is my first thread, but I figured I'd start out with something interesting.

I have a CAI and UDP installed. I have cattman headers and catback on the way (to replace crappy custom stuff), as well as a fidanza flywheel and clutch.

I was thinking of doing a MEVI (rather do an 00VI if i can find one!) after x-mas...as well as porting of stock heads, JWT ECU, and finally dyno tuning with an AFC. Then I sumbled upon this...and I thought I might try and use it in the creation of my upcoming frankenstein.

I managed to get a hold of the following from a vq40de:

Variable Upper IM + TB

Lower IM


fuel rail with injectors

vacuum canister and solenoid, 2 knock sensors




Anyway, I'm just asking for some ideas/suggestions as to what sort of monster I could create with stuff....I have already ruled out the upper IM. It wouldn't clear the strut tower.

I'm wondering if maybe I could get some stock heads ported to match the lower IM (assuming it would even bolt up) and then I would have to get my stock upper or maybe a MEVI ported to match the lower, then use the vq40de injectors as well. I highly doubt this would be doable. But would be pretty cool IMO.

I'll definitely just keep the knock sensors. I need one already anyway.

If I can't do anything with the manifolds, is there any use for the vacuum canister?

Any Ideas??
If nothing comes out of these parts, which wouldn't surprise me, any suggestions for doing a bad@ss N/A vq30 build? (not swapping a vq35)

Also, these might end up for sale or trade if I don't use them...

Thanks!

 

Besides the actual fabbing to get the parts to work, the VQ40 plenum is more than likely designed for more low-end. A member had a Pathfinder VI on a FWD VQ at one point and it had very strong low end, dead in the middle, and screamed on the high end IIRC.

 

If you decide to do it, I'd be very interested to see the results. Fr33way, did the guy ever get it dyno'd?

 

well i wonder if nisan followed the lines that they used to and made it easy to swap vq parts like they did the vg if so then it should bolt right up, but with the 4.0L injectors it might be enough to put it with a turbo on your 3.0L then youd have bug a$$ openings and all that air low


do more researcs or see if it fits when you have time, i want to know what happens,

 

To be honest with you, using the VQ40 LIM would be kinda pointless unless you use the UIM with it.

Be a pioneer, try the VQ40 UIM. See if it gives gains, or first of all try get it to work. Comparing the LIM ports to a stock VQ30 LIM theres no chance in hell you could use the VQ40 LIM with the 00vi or mevi. But you could try bolt the vq40 LIM onto the vq30 and see if it even bolts or lines up if it does then bolt hte UIM and dyno!!

Good luck man!!


What Fr33way said, the R50 PF intake manifold would be insane to use, its got super long runners for good low end, and for top end it basically can dump it in right after the TB. I was going to pick up one from work, but the intake manifolds get re-used because nissan only sends the short block with no IM.

 

Just because you have the IM doesn't mean anything. IMO, a 00VI will be better than that.

The KS thing will not go well with your ECU. That and what would you expect to be the benefit of using 2? The injectors are too big for an NA application, and they're top feed vs side feed, so, you would need to modify your fuel lines in order to fit that rail on your car.


It essentially looks like a plastic 02-07 IM. I cannot see the other side, but it doesn't look to have dual PV's, a la next gen FWDVQ35DE.

Try and get some internal pics of it so we can compare it to the 02-07 FWDVQ35DEIM. If it looks the same, then I would still stick with the 00VI. The elbow looks to be on the opposite side, so, as already mentioned, the configuration is for RWD, another PITA obstacle.

I think the first thing to do is actually see if the LIM fits the VQ30DE heads.

 

you would also have to worry about hood clearance if it all bolts up

 

Don't get me wrong, I'd probably rather have an 00VI as well. It's just since this fell into my lap...i thought why not try?!

I guess I should have been more specific about the KS's. I am going to use one as a replacement for my broken one (as opposed to the 470k resistor I have), then keep the other for a spare. They disconnect from the harness and I expect will plug into mine.

And yes, the whole injector thing is a problem. Another thing to note, on top of what you said, is that the vq30de fuel rail uses a return line, correct? It appears to me that the vq40de fuel rail doesnt...

And yes again, it is from a pathy, so RWD config, and elbow looks like it will run straight into the strut tower...

Forgive me is this is a dumb question...but internal pics? like pics of the underside? or do you actually want "internal" pics of the UIM?

Another concern of mine is the TB. This one has an electric one. What would my options be? older, cable actuated pathy TB? make a plate to use stock vq30 TB?

Yes again, the first thing I wanted to do was see if the LIM will actually fit or come close to it...however, this is my daily driver, and I don't exactly the time to tear my intake off. I'm thinking about trying this weekend...but thats a big maybe.

 

another thing to note...the LIM will NOT fit vq35de heads.

This came from the Nissan dealership at which my dad works. They had a vq35de sitting there which he used for a test fit. he said the angle of the heads on the vq35 does not match the angle of the vq40 LIM. one of them was too steep, i don't remember which though...

what's the relationship of vq35 heads to vq30 heads? will the vq40 LIM not fit the vq30 if it doesn't fit the vq35?

 

in for the knowledge. this sounds like fun.

 

I am glad you do more reading then posting. This just doesn't sound right. Your power band would seem to be kind of weird. Save the time and the money and get the 00vi. Then run that bad a@@ down the track and see what it does. But if you can afford to do both dyno them both and see which one puts down more power.

 

I meant pics of the VIAS assembly in the black plastic portion. Take the VIAS cover off, and start snapping away.

 

will do. hopefully sometime tomorrow.