GT-R intake manifold conversion progress?
 

Idk about you guys, but this is a part I'm very excited to buy. There is not much info or updates lately for this part, but I know GTM should be done with it soon as last time I checked it was already in production.

I'm making this thread for discussion, pics, and updates from GTM on this kit.

Ive got mine installed already ;). All seriousness though, I was really looking forward to this. It would of been a nice addition to help out the turbos.

Billy, you traded your Z for a GT-R? If so that's awesome. But anyway, I'm sure this part will make more power then the motordyne piece, but your right as the F.I guys should see good results too.

Thanks Jon! I ended up parting out the Z and selling it to carmax. Finally got the GT-R two weeks ago, had to go to GA to get it cause thier getting so hard to find.

Is Bullitt still the only Z with this manifold on?

The GTR intake manifold conversion manifold is in production right now... I wouldnt expect an update until after Christmas... The manifold is not on my car at the moment and will be going on the car once we are finished with my widebody. :tup:

Mike

For how much it will likely cost, I don't see a great increase in power unless one is already boosted.

Ya buts it's going to tits to have the gt-r manifold on the Z, lol billy how do you like the GT-R?

patience is virtue....

I am very interested in this:tup: subscribed.

I love it so far, I can't help but smile every time I'm in it. It makes driving my 97 civic a let down, that's for sure lol. I was nervous at first that I was going to miss the manual trans but bewteen the dual clutch setup and paddle shifters I haven't missed it a bit lol. It still baffles me when I get on it and it just grips. I've never been in a vehicle with such good traction and handling. My only complaint is that you can't put the windows down with the unlock button from your FOB lol. I think I'll be able to live with it though lol.

If I had to guess I'd bet the part will be an intense install as you have to remove and replace both the upper and lower intake manifold, its not just a bolt on plenum like the Motordyne.

With that said, if it has gains all around for N/A and F/I guys it'll be awesome and worth the wait, time will tell. Personally I can't see GTM waiting this long to release a product that only benefits people who are already F.I. How much could it help them considering most F.I. guys are running stock internals so even with the better intake manifold you're still limited to ~550whp.

I'm still selling mine with engine cover! :hello:

In for info.

dude, I would be a NERVOUS wreck taking that thing anywhere. It wouldn't even be worth it for me to have one lol.

Hmm, interesting. What benefits would this have over OEM? Will this increase the volume the manifold can hold (ala plenum spacer for 350Z DE motor)? Also, should we expect to see solid gains for N/A cars? Definitely subbing this thread.

^^ good questions, i know the plenum spacer and mrev2 really brought the DE rev-up motor to life...

The first few days was pretty nerve racking lol. I didn't want to leave the car alone anywhere but you break away from the feeling eventually. It was a little easier for me since I bought used and it already had some chips in it.

I would really think if there were gains to be had, Motordyne would have likely gotten them.

subscribed

That's what I think too. Our manifolds seem to be already pretty damn good...

yes they do... I don't know that for NA Z's there is much more power to be gained. Perhaps eventually with some cams and tuning, but even then we're probably only talking 20 or so HP. Don't get me wrong.. if I had a car capable of running a 12.5, i'm perfectly ok with that ... I don't go to the strip, nor do I really care to... I just wanted the same sort of pep my old Evo X had.

Some of these bolt-on Zs are running mid-12s no problem. Not too long ago a 500HP BMW M5 and M6 did that with a V10 motor. I'm looking forward to having a nice set of cams on the market, in addition to the VVEL crack.

I'm going to get an intake of some sort and probably go with the 3.90 something gears instead of the 4.08... I think that would be enough to put me where I want to be.

No one is trying to crack the VVEL system, GTM & Uprev gave up

VVEL doesn't need to be cracked, massive gains have been seen without doing so. A key difference between the GTR plenum and the Motordyne is that the GTR setup requires a new upper and lower manifold. We'll see how it goes.

it's taken forever thus far... I don't expect this to happen very soon anyway.

Faaaawwwk. When did I miss this announcement? :(

it was subtle, I think its in one of GTM's product release threads. Apparently the labor and time required to crack VVEL outweigh the gains. Given the right hardware and tuning the stock ecu goes a long way, at least that's what I've heard.

The answer to VVEL is:
-GTM stopped R&D
-Uprev has torn down a complete VVEL block recently and has software which they say can adjust it but are still working on clearances and what exactly it takes to 'tune' VVEL and what it can do.

Yeah, our ECUs are surprisingly flexible. You couldn't get much out of a VQ35DE, for example. It certainly felt better than stock, but the 370Z feels like a new car.

I wish Sam@GTM would comment in this thread with a progress report

^^This.

And maybe a price point. $1000? $2000?

Meaning Japanese engineers are effing smart!

Yep, honestly there does not seem much stock wise we can tune out of VVEL, but it would be nice if someone would try to do some cams and throw them in and see if the system adjust for it.

Looks like the z34 made a believer out of you I know you were part of the z33 v. z34 dilemma.

I always knew and accepted that the Z34 was significantly faster than the Z33.

Some of the mechanics from Baker Nissan, I know one of them, went to Dallas last week to study VVEL. He said that there is only exhaust cams in the head and that the intake system works more like roller rockers, with fingers letting in the air, etc... thats why you see that big solenoid towards the back side of the driver side head. That was his explanation, but we were drinking so.....

I assume that was Jason, he has torn an engine down once and taken a look, I was busy that day so I missed it.
The system sounds very complex but when he explains it I feel it should be easy to modify and expand. I think one of the issues is we just do not have enough support for this platform and the companies who are doing R&D are swamped with current projects.

We need to find someone with millions to buy into this platform and start paying for new R&D. :tup:

His name is Greg, he's a STI dude but he works on Nissans up there @ Baker. I was hoping you could give some insight. I know you know the Baker people well. I was hoping a company could just slow the whole VVEL system down tad, retard it or something, but it's obviously not that easy....ugh!