EVO IX Performance
Evolving Member
Joined: Nov 2005
Posts: 335
Likes: 0
From: LA
Originally Posted by frenchy99
ok....well from what I have seen regular 4G63 produces more torque then the mivec 4G63! you lose some to gain some......basically the equation is pratically the same....
Originally Posted by evilution310
it is the larger compressor housing dosent fit with out a new licp
Also, the coolant/oil lines are different on the IX turbo.
Originally Posted by SKILMATIC
I can gaurantee you that if you mic the turbine A/R housing that it is the same size as from the evo 8 03-06. The difference lies in the hotside which is where the impellar shaft is located.
The hotside on the IX is not changed whatsoever from the 05 turbo.
Evolved Member
Joined: Mar 2002
Posts: 4,312
Likes: 3
From: Birmingham, AL
Originally Posted by evilution310
not a bigger compressor wheel its still a 16g wheel, it just has a larger compressor housing.
Originally Posted by Warrtalon
Sorry, SKILMATIC, but everything said in this quote is true. I don't know where you got all of your false information, but you were very, VERY wrong in this thread. To reiterate the FACTS:
- The IX hotside is the same size as the 05 hotside (10.5cm^2)
- Only the 03/04s had the 9.8cm^2 hotside
- A larger hotside does NOT help spool. It gives more top-end power and slightly less spool
- The IX does NOT have titanium internals. Only the TME turbo has that from the factory.
- The IX DOES have a larger compressor housing. This has been shown and proven on many occasions.
- The IX turbo installed on an VIII DOES make more power. This has already been proven
- MIVEC only helps in low-end and mid-range torque, which does change the torque profile and provide more area under the curve, but it does not provide any assistance above 6k, which is when the MIVEC becomes in active. We hit peak WHP above 6k...
- The IX hotside is the same size as the 05 hotside (10.5cm^2)
- Only the 03/04s had the 9.8cm^2 hotside
- A larger hotside does NOT help spool. It gives more top-end power and slightly less spool
- The IX does NOT have titanium internals. Only the TME turbo has that from the factory.
- The IX DOES have a larger compressor housing. This has been shown and proven on many occasions.
- The IX turbo installed on an VIII DOES make more power. This has already been proven
- MIVEC only helps in low-end and mid-range torque, which does change the torque profile and provide more area under the curve, but it does not provide any assistance above 6k, which is when the MIVEC becomes in active. We hit peak WHP above 6k...
Warralton, Im sure MIVEC isnt showing an increase above 6k because there is another bottleneck in the way. Weather it be flow, duration, etc.
But thanks for the clear up. I like debating with those who understand the engineering of automobiles. Not just bolt on/forum intel.
But thanks for the clear up. I like debating with those who understand the engineering of automobiles. Not just bolt on/forum intel.
Evolving Member
Joined: May 2003
Posts: 277
Likes: 0
From: LA
Originally Posted by GPTourer
And if that's true, it still make a difference. A wheel's performance can be changed depending on what housing it is in. A 20G wheel might do okay in a Td05H housing, but not really shine until its in a TD06 housing. There's at least three choices for, say, a 50 trim. S, E, or B.
ya theres no question the 9 turbo is better then the 8s and makes more power.
Originally Posted by LDOGGYDIZZLE
Warralton, Im sure MIVEC isnt showing an increase above 6k because there is another bottleneck in the way. Weather it be flow, duration, etc.
Originally Posted by LDOGGYDIZZLE
hmmm, interesting. Can it be used with tunning?
No, tuning cannot change the fact that the MIVEC isn't designed to work above 6k rpm.
Thank you Clay!! Just what i have been trying to explain this whole time!
You are brain dead or need to lay off the green, short term memory is really messin you up.
You were arguing that MIVEC didnt really do anything.
I gosta work here, cant keep posting. L8r
Originally Posted by EVIL_EVO_VIII
+1, 90-95% of the power over the VIII is due to the new turbo
On a dyno the power difference between a IX and a VIII with a IX turbo a very small, but on the road, in daily driving, the MIVEC is very noticable.
Even a stock VIII with a IX turbo doesn't get 80wtq off just a flash. Where do you thing that torque comes from......... MIVEC tuning.
Tunning isnt a word? Its more of a word than BOV.
What I meant, is with a EMS (once avail with MIVEC adjustments) or reflash etc. I guess you would need MIVEC on the exhaust cam to start retarding it. Ive seen some pretty interesting MOTEC maps with elec cam timing on world challenge cars. Here my knowledge is slim, thats why im asking or has no one really put the effort in?
What I meant, is with a EMS (once avail with MIVEC adjustments) or reflash etc. I guess you would need MIVEC on the exhaust cam to start retarding it. Ive seen some pretty interesting MOTEC maps with elec cam timing on world challenge cars. Here my knowledge is slim, thats why im asking or has no one really put the effort in?