Please don't take any offence to this Nick because I know that you know more than me and you actually tune cars for a living. But I think the true test will be when an EVO9 turbo gets installed on an EVO8 and someone gets to tune it.
Also Nick would you happen to know what the duration and the lift on the stock EVO9 cams are? Could it be possible that on the EVO9 ECU when the value for the the cams get to zero through the rpms, they are actually being advanced from what would be stock on an EVO8 (I don't know of an easier way to say this).
eg: -5 on EVO9 cam = 0 on EVO8 cam (I know its not even adjustable)
0 on EVO9 cam = +5 on EVO8 cam (if it could be adjusted but it can't so it just stays at 0)
Then that would mean the most of the low to mid range would be because of the turbo, correct?
I guess time will tell

 

No offense taken ever. I do not have cam specs for the 9. As far as lift and duration would be concerned.
What I can tell you is that if the cams were set to zero you would still notice a big difference up top still. I have tried it many times.
When the mapping is set to 0 it will be the same degreeing we have seen in the 8.
We are doing some cam testing on the 8 this week. While we are confirming the cam specs on the revolver cams vs HKS I will do the same for the nine and let everyone know.

 

It seems that after all the testing done by Al, Shiv, and Nick, it looks like the turbo is primarily responsible for the great gains on the IX, also part of it is the amazing tunes given to the IX by these 3 great vendors Good work guys!!

 

Diplomacy... the tool of reason.
Thank you evilevo

 

+1

 

this is not quite correct... and i'm not singline out precision AT ALL cuz everyone needs to know this and i regret that so mnay people are talking about the evo9 turbo. the evo 9 turbo's increased diffuser size allows for the fast build up of boost, this is the primary fucntion of the increased diffuser size, the ancillary benefit of a larger compressor housing is just that, ancillary. this in combination with the mivec's ability maximize the low end are what make the low end better.

i said that the above is not quite correct because the compressor wheel isn't actually bigger, the cover is however so the flow benefit should be acredited to the compressor housing and not the wheel because although the wheel is sublty changed, the size and flow characteristics for the most part is not. this is the reason that br can put the 20g wheel in there... tho i highly doubt it's a perfect fit, it does fit.

 

Actaully you are correct, I should have said the "compressor cover and its efficiency" rather than the compressor.
My mistake for typing my thoughts rather than rereading what I wrote.
The Mivec mapping in the stock ecu allows us to see peak torque earlier in the rpm band.
Thank you for correcting me. My apoligies.

 

actually going back and readin i totally shoulda quoted either dynoflash or daworstplaya cuz they're saying more to the end of trubo gives high end and mivec gives low end where it's actually turbo gives low end, cover gives some high end and mivec tries to get the low end as best as possible while leaving the high end as high as it coulda been in the 8. iunno if any of that made any sense right now but i think people need to get the evo 9 turbo straight before they start flingin' poo.

 

great thread...i'm loving it. it's definitely taken a turn from a Vishnu Evo IX thread to a General tuning Evo IX thread...which is fine by me

 

I agree with Nick and Shiv that the power the IX makes is the harmony of all the parts, definitely including the Mivec.

I'm far from a tuner by trade, and feel I know a thimble full of information about fueling and spark compared to someone like Shiv. That said, I have mapped quite a few Evos and Subies for customers and have several hundred dyno pulls from all the cars combined. My point in that introduction is that Mivec is a very good thing! Anyone that's dyno tested cam gears on an Evo or DSM can tell you that its easy to move the power band around. Advance the intake gear, and the power will come on earlier, but peak sooner. Retard the gear and the torque curve will phase shift to the right, increasing peak power, but reducing midrange torque. With Mivec on the intake side, you pretty much have an infinitely (within reason) adjustable cam gear and get the best of both worlds! This means no more compromising with cam gear settings that must remain fixed. Upgrade the turbo in the car (3037, 35R, etc), and that benefit still remains with Mivec. I think the IX is an awesome car, and for more reasons than the fact that it has a larger turbocharger.

 

No prbl Nick

 

precisely....

 

I've been following this thread since day1 and am glad that with the additional posting of the 2 other tuners, this thread is still heading in the correct direction. Lots of information is being posted and corrections are being made to those areas that need it. All of this info is truly appreciated. Please keep up the good work and keep the thread positive.

 

Shiv, will you still offer the XEDE for the IX? With the extra timing maps the car has, will storage space be an issue? I'm thinking about the possibility of SMART on the IX in the future, and am getting excited. Just wish I had an IX for myself.

 

Dyno Flash + Precision Dyno Y don't you two go do your own (THE NOT SO OFFICAL EVO 9 TUNNING THREAD)Oh Ya now that a lot of evo owners got F. And leave this one alone VISHNU is working so hard to give us the best he can to the evo 9, unlike the other who only want $$$$$$. thank you VISHNU FOR YOU HARD WORK...