GST Motorsports
01-13-2009, 10:47 PM
Today I had a couple extra minutes to do a comparison on a Evo 10. I don't think I have seen anyone post the differences that can be had between the 100% factory Mivec maps and some "tuned" Mivec maps.
So after tuning this stock Evo 10 I threw the factory Mivec maps back in and did a couple pulls.
Disclaimer: This is not an exhaustive test. I just had some free time to do a very quick comparison. I actually am planning on showing a more exhaustive test on the mivec maps here very soon. Stay tuned for that. ;)
Dotted lines are with tuned intake and exhaust Mivec maps. Solid lines are with 100% factory tuned intake and exhaust Mivec maps.
http://norcalmotorsports.org/users/bryan/mods/EVO/tech/evo10/Mivec_vs_01.jpg
I'm only showing up to around 5400 rpm as I have yet (so far at least. ;) ) to see very large gains in mivec tuning up top on a stock 10. Let's just look at the curves from the low to the midrange for now. ;)
At 3000-3500 rpm, there is a 45wtq gain with the tuned mivec maps. At 3900, approx 30+ wtq gains. Other than that large torque increase there are huge gains in the way the torque comes in and carries over through the midrange.
This map I am working on actually has some more room in it from 4000-5500rpm as well. I plan in tweaking it a bit more before I post a more "exhaustive" look at Mivec tuning and it's benefits.
So after tuning this stock Evo 10 I threw the factory Mivec maps back in and did a couple pulls.
Disclaimer: This is not an exhaustive test. I just had some free time to do a very quick comparison. I actually am planning on showing a more exhaustive test on the mivec maps here very soon. Stay tuned for that. ;)
Dotted lines are with tuned intake and exhaust Mivec maps. Solid lines are with 100% factory tuned intake and exhaust Mivec maps.
http://norcalmotorsports.org/users/bryan/mods/EVO/tech/evo10/Mivec_vs_01.jpg
I'm only showing up to around 5400 rpm as I have yet (so far at least. ;) ) to see very large gains in mivec tuning up top on a stock 10. Let's just look at the curves from the low to the midrange for now. ;)
At 3000-3500 rpm, there is a 45wtq gain with the tuned mivec maps. At 3900, approx 30+ wtq gains. Other than that large torque increase there are huge gains in the way the torque comes in and carries over through the midrange.
This map I am working on actually has some more room in it from 4000-5500rpm as well. I plan in tweaking it a bit more before I post a more "exhaustive" look at Mivec tuning and it's benefits.