Customized MEVI?
#8
Originally Posted by s0ber
He wants to modify the MEVI for little to no low end torque loss without a decrease in high rpm performance.
#11
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
#13
Originally Posted by s0ber
He will be awaiting your genius answer to his question....
(Only "tweaking" I can think of anyways)
(Only "tweaking" I can think of anyways)
#15
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.
#18
Originally Posted by scrhale
Whatever happened to that dude who claimed he made a MEVI better then 00VI and then never explained any of it.
#21
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?
#22
Originally Posted by xloki77x
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?
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......
#23
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.
#24
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
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
#25
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.
#26
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.
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.
#28
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.
#30
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...
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...
#32
Originally Posted by vsamoylov
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.
#33
Originally Posted by GodFather
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...
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...
#39
Originally Posted by GodFather
what's your point? it's his business and his decision. live with it.
#40
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.