Idea for MIVEC on 2G

[ilikespeeding]

Id like to see if anyone could find some problems with this:

I had an idea for MIVEC that involved the evo 9 head. On the 9, the cam gears are on the drivers right side as opposed to the eclipse's left. This is a pretty easy fix by spinning the head 180 degrees, which would work because the head is symmetrical. This spin creates two problems, timing and studs for the manifolds. You're going to have to switch the intake and exhaust cams as well as cut some studs off and weld some studs on and rethread (map seen below)...not a big deal provided I am correct. Now that you have the head on there..how do you make it work? Mivec is hydraulic and needs oil to operate. This oil is controlled from an oil control valve and a solenoid. So, we're gonna need a feed line just past the oil pump and a return line for oil that dumps before the oil filter and an OEM OCV and solenoid. So, how do we get it to turn on? Any Vtec controller will work for mivec...but what self respecting DSM driver puts anything saying vtec anywhere near their DSM? No one. So lets use a Greddy eManage with RPM harness. The eManage will hook up to the solenoid and allow Mivec tuning as well as full control of fuel, ignition and other goodies from Greddy.


Once being cleared...I might try to use it. Blue lines mean cut off studs and red means new studs.

 

[ilikespeeding]

^Power output per CFM. You should also know that displacement has no effect on CFM, only when it gets there. This is the last time I respond to you ITT unless it's mivec related.

 

[rarson]

^Power output per CFM. You should also know that displacement has no effect on CFM, only when it gets there.

What are you talking about? Do you realize how ridiculous you sound? You're the one who was completely ignoring "power output per CFM":

Surely, even with the weight, compression, and turbo differences, that 25psi on a 16G is faster than 7 on an 18G.

18G @ 7psi = 250ish cfm
16G @ 25psi = 400ish cfm

Do you even read what you wrote before you hit the submit button? Displacement has NO EFFECT on CFM? Seriously? Because I would swear that a 5L engine consumes more air than a 2L engine! Do you even understand the point of having air flow on a compressor map?

This is the last time I respond to you ITT unless it's mivec related.

Yes, I agree, this conversation has gotten frustratingly stupid.

 

[ilikespeeding]

^I could, but we'll save that one for another thread.

I just measured my 1G's cams across the bridges and they're symetrical. Read: can be reversed.

Looks like this:

0--0---0---0---0--0*
0--0---0---0---0--0*

Each - equals 1 inch

 

[JDMTransfer]

so are u gonna do the swap or not?

 

[DSM nOOb]

dude this thread is years old. I'm sure he would have figured out by now it is not worth the time or money to do this.

 

[Rob10_99]

You'd be much better off trying to create an oil controlled cam gear for your stock head

Here's how you do it.

You need a hollow intake cam(for intake vvt only).
You need a mivec cam gear mated to a dsm cam gear to bolt up to the hollow cam.
The hollow cam feeds the mivec system.

End of the cam or one journal is the feed mechanism for the mivec physical control.

It could be fairly simple asin oil pressure controlled and you can throw everything else out the window with this plan.

~Sub 40psi (roughly 4krpm, no arguements right?) would equal the intiation of mivec, not sure how it would be resistive to that defined pressure or at the very least anything more than 20psi oil pressure but you get the idea.

Any takers?

 

[KYNDL7]

Has anybody considered the oil and water passages of each head, how is that going to work out? Looks about impossible to me

eclipse

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evo

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[PieEyedPiper]

^^^ you don't use a different head.

 

[gsxeclipse97]

well since mivec is only on the intake cam on the evo9 wouldnt it be easier just to use a 2g head and and modify the intake cam to do the same thing that evo9 cam does? I have an idea but I need to do some more research before I post it just to have a better understanding of how it works.

 

[godschylde777]

I have read this post from start to finish, and I just dont think it would be worth it. I dont see the gain. I would like to see a complete swap now that would be cool. But this is not worth it.