Is it possible and has anyone done it? Is it worth it if it has been done. Things like thicker gaskets or different mevi tops (whatever the correct term is)

 

What would you 'customize'? Anything can be done with the right amount of money.

Worth it in the end...

 

I think he wants to add like a spacer (bigger gasket?) and the top, im assuming he means a fancy cover for the MEVI.

 

no I mean tweaking the mevi

 

Explain 'tweak'

 

Can you be any less descriptive?

 

He wants to modify the MEVI for little to no low end torque loss without a decrease in high rpm performance.

 

So he wants the high-RPM torque to stay the same while losing a little low-end?? Damn...why didn't i think of that??

 

He will be awaiting your genius answer to his question....

(Only "tweaking" I can think of anyways)

 

What you want is a 00 VI.

 

I know the 00vi is better but I wondered if anyone messed with the MEVI. Since it is what I own. And by tweak I mean just that. Anything to make it any different from the stock mevi. Oh well I guess its up to me to figure anything out. Thanks anyway

 

Im sure hitting it with a hammer would make it diffrent, and if it cracked flow better too. But those 1 or 2 cyls would be a lil lean...

~Alex

 

Well he can always paint the top of the resonance chamber and the MEVI cover pink.

 

Extrude Hone the MEVI

 

yes...Extrude hone and make the chamber's static volume bigger to gain torque and aid high end flow's. other than that, there's no point "tweaking" it. but back to think in reality, extrude honing this puppy is going to cost ya, and you might as well go with a 00vi setup which knocks off all weaknesses of the mevi and stock intake manifold.

 

Yes extrude hone and if possible move the butterfly plates down closer to the runner. I don't know if this would help but it seems logical.

 

Whatever happened to that dude who claimed he made a MEVI better then 00VI and then never explained any of it.

 

whom? may I ask? I want to know as I am phasing into doing the 00vi setup in a couple of months. I don't want to waste my mevi.

 

Once I put the MEVI back on im gonna try some things. If they work I'll let you know, if not oh well.
and it will probably be a while with school and being broke and everything.

 

japmaxSE or something to that extent.

 

I just picked up a new cnc machine and have it sitting in my basement. I was planning on making a set of spacers for my max (throttle body and intake manifold). I have a MEVI right now but the spacers that I'm designing would work with both the MEVI and also stock intake plenum. Obviously i would run dynos before and after installation but i s wondering would anyone else be interested?

 

Yeah - make me a 1" aluminum spacer for the top cover plate on the MEVI, and I'll buy it if reasonable.

I built one from industrial closed-cell foam, but mainifold vacuum crushed it down. I probably should have used plywood, but the foam was blue.

When you hit the throttle, the entire top of the MEVI cover is pushed down by atmospheric pressure. You could see the foam being compressed. I wanted to see if more volume in the top chamber would help 1/4 mile times, but never got to test it. Actually, if you could cut three 1/2" spacers, I could try tuning in 1/2" steps......

 

Well, what I can do is make the spacers for the bottom of the upper intake manifold and also make spacers for the top of the MEVI because I could R&D it on my car. I still have to get the cnc up and running but that that will definitely be my first priority on that thing. I have to wait on a new controller for the whole thing because the machine is about 15 years old and I am updating all the motors and tooling so i can cut titanium. The cost of machining an aluminum spacer for the MEVI may be high because of the material that I'd be cutting out of the middle, but I would still be interested to see what kind of gains would be possible. I should have it up and running in a week or two. I will keep you posted. Also, what else could be machined that could make gains for a vq...Ive been racking my brain for weeks! Thanks guys.

 

I believe if you add a spacer between the lower IM and the MEVI, you will be lengthening the runners which aids to mid range power

You'll have to shorten the runners by chopping and rewelding the MEVI if you want more top end power. Hence the variable nature of the MEVI and DE-K IM's are so beneficial

 

Yes it was me I had it done well almost. I took the butterfly's out turned it into something like the kenetics one in reverse (short runners). I had mad vacuum leaks were I had some spot welds in some spots of the TB mounting area. Honestly I have no idea what kind of power to expect but it sure had way more low end then top end. Now it sits in a box, until I figure out what other car to put it in. I would take pics but I think I'm on to something well for another type of manifold not for the VQ . I wish not to reveal yet.

 

Damn you guys are on the right track as far as the spacer goes.
But the prob is there isn't enough area to actually gain. Such as the one for the 350Z has a much wider range of added area which results for more noticble power. I doubt your going to see any gains from the spacer. Been there done that but my MEVI was totaly differebt than a stock MEVI. It wouldnt hurt to try tho.

 

A worthwhile modification would be to make the butterfly valves sit flush with the runners. That little existing space is what causes the turbulence and lowers mid-range torque.

 

Has anyone relocated the butterflys? I tried searching but it didn't really help. Also, has anyone used an electric motor to open the butterflys, as opposed to the vacuum method? I noticed the butterflys will open quick but they don't disengage quick enough, so if I'm hitting red line in a couple gears its basically open all the time.

 

its likely to be open all the way anyway because your rpms wont drop below into where it is closed.

 

adding spacers to the upper manifold will raise the hight, but egr connection wouldn't match up right. also, the 2 supporting brackets behind the manifold wouldn't be able to catch at the right hight. did you guys overcome these problems, how? also, coolant routes may have to be extended, but it's no big deal. but i really would like to know how to match the supporting brackets and the egr spots.

if you just ghetto fit it altogether, then the manifold would sit somewhat of a slant to the back. i really don't like that idea. makes me wonder...

 

sell mevi get vi and dont waste any more time and money

 

i agree, but now with VI available, who's going to buy mevi? if so, it'll be sold at a pretty low price, then we lost too much. it's about giving up and getting new stuff. Worth???


I would go with the new VI, but wouldn't want to just waste MEVI like that. That's why I am also interested in redo-ing Mevi for a tweaked performance.

Besides, Mevi with JWT cams gives no low end torque whatsoever. It's more like driving a honda civic. But it supports high ends like crazy. Even with a 00VI, I really would like to tweak and keep this mevi to see what I can do to juice it up. And sentimentally, it's actually what got me started with modding my car.

 

Everything is custom made, I know I couldn't tell you exactly how to mod your MEVI because it's just to detailed and it would come down to how your going to alter it yourself. There are so many different ways so many different designs you can make up. I started off trying to help make the MEVI better ended up with a completely different design.

 

SECRET SAUCE!!!

 

I wanna see this super special MEVI, I hear about it all the time, but no hard facts...

 

It's actually not a MEVI but a the 3.5 VI that was made special.

 

the guy wont share...

 

what's your point? it's his business and his decision. live with it.

 

This is exactly what i felt like saying. He has no obligation to anyone on this site to share his secret. That's like expecting technosquare to hand over the code they use in their ECU upgrades.

 

If you saw the manifold you would know what he did. I haven't even seen it or talked with him in depth about it and I know what it is. If you can't figure it out for yourself, then you shouldn't be attempting it. 2 other guys on the board, Stephen Max and Tilley figured it out too. They removed their posts out of respect for Matt.