What Mivec is: A poor companies idea to try to copy V-Tech... Vtech is two different cam lobes on each cam. It can switch from say a 262->280 at high revs. Actually useful.

Mivec is adjustable cam gears... at higher revs it adjusts your cam gears... its not going to make that big a difference.

The turbo is what makes 95% of the power. The MiVec tries to make the power output linear but really isnt going to give you much.

The different coolant passages in the head are interesting, I would like to see how it helps out with knock control.

 

Thanks for the great info, very interesting

 

A poor companies idea to copy Vtec (V-tech are phones by the way). Umm, both Nissan and Mitsu use similar setups, both are very highly regarded manufactures in Japan, unlike econo Hondas. It is more about better spoolup, and torque curves than peak power. The turbo is a great improvement, but it works hand in hand with Mivec to achieve the results you see from IX's.

Have you ever used an adjustable cam gear? Have you not seen the differences that changing cam timing does to power thru-out the rpm range? From your comments obviously not.

Girlie

 

WHile it may not be as involved as VTEC, it certainly has a good upside. Or perhaps you don't see the benefits like Shiv does.

 

Its a combination of everything man. Better turbo, MIVEC, new controller, new head, and prolly other things too we havnt even noticed.

I remember back when Precision Dyno was starting to play around with the IX's, and everyone was going nuts on the new power. I asked if the head had been revised at all. Precision said no, but low-and-behold, we soon found out that the coolant passages are much better allowing more agressive tuning. There are prolly more things out there we havnt even noticed yet.

Listen man, were talking about 30 hp here, not 150. To each his own, but if you trade in your 2005 for an '06, your falling into a marketing trap that every automaker wishes it could pull over its buyers. If it were me, I would just accept my 30 hp deficit, get some cams to make it up, love my car, and never look back until it falls apart. But again, to each his own.

 

The head modification point was made to distinguish whether or not it would mate up to the 8 block. That is all.
And you are right, there are alot of refinements in the 9. ome very interesting ones once we took the first few apart..
Stay tuned and we will post some pics and technical info for you if you like.
But the Mivec is the main difference in this car believe it or not.
If tuned properly the cylinder pressure it can maintain thruout the powerband is fantastic.

 

PD,

Please give a detailed breakdown of the differences since a lot of us don't have the luxury of having both to compare, let alone the ability to break them down. And besides the head, what is new (if anything) with the block. THanks.

 

I have a few at the shop we are doing some major work to. One in particular we will go into great detail.
There isn't any reason why we shouldn't share the info.
It will be quite interesting as it came in from another tuner with some issues. I will explain with pics.
I will post a link here in this thread in just a couple of days. Stay tuned, just a couple of days.

 

exactly

 

I'm certainly interested in the differences between the VIII and the IX just like everyone else so this topic is interesting, but when you try to say that Mitsu is less econo than Honda, you are on crack. Honda is and always will be a step ahead of Mitsubishi in engine tech and level of car refinement. No way to argue that I fear. They may not make a turbo factory motor, but they make plenty of motors that have over 100 hp/per liter N/A which is something I haven't seen Mitsubishi come up with. I have owned both Hondas (Type R and S2000) and now own the EVO so I respect both for what they are good at... you should do the same.

 

Cool thanks for clearing the head modification thing up.

 

I havent seen a Mitsubishi F1 yet either

No offense to our own company.. I love my Mitsu, but the MiVec is junk. Yes its better than nothing but it doesnt seem that great to me. I mean for the autocrosser types, sure... it nice. But for power... no, it will not give you any more peak power, nor hold it any longer. In power cars with thier only goal of making and holding power, are going to use the gearing advance that gives them the most power and holds it the longest. If they dont gain the 20 horses at 3k then so be it... who races at 3k anyways

Again, not trying to be too mean about it but I dont like it. And as for Shiv finding huge power there... whats his fastest Evo? I know Shiv knows alot about the ECUs and such but doesnt seem like he gets into the real power cars much. Hes more of the tinkerer with stockish turbos trying to get that 12hp edge... Id rather get a bigger turbo and get another 100 Even if I only use half its potential I still got his 12 smoked.

 

Different stroke for different folks...

It's easy, just think of there is a brand new evo 8 and a brand new evo 9 in front of you and you are only allow to take one home...there's your answer.

 

I just got a IX and I also have an 05 VIII. IMHO the IX is a lot better, here are all the things I've counted so far.....

MIVEC
Turbo
ECU
Head (coolent passages)

Seat
Dash
Pedals
Teflon Shifer Cables

Nicer Headlights & Taillights
Front Bumper

But the thing that matters the most is the drive, and a IX drives a hell of a lot better then the VIII. Also the IX takes to mods a lot better then the VIII.

 

MIVES is not junk and Shiv isn't the only gettin great gains from MIVEC tuning. If you've read any of Al's new case studies, he been messin with the MIVEC tuning and getin' great gain.

Also, if drag racing is your game, MostedWanted did a 12.0 with only a TBE, intake, MBC @ 20lbs and a dynoflash on 93 oct. If that doesn't prove MIVEC and the IXs are the ****, then I dont know what does.



PS. I've also been seeing way better MPG on the IX.