The not-so-offical EVO 9 ECU tuning thread
Originally Posted by shiv@vishnu
Remapping usually is the first step. This tells us what parameters need to be changed to get the desired outcome. Once that is established, we can see what needs to be modified/changed with the XEDE. MIVEC, for instance, is proving to be a very useful thing to manipulate judging by yesterday's and today's tuning. So useful that we plan on getting control of it via the XEDE. I'll post up some graphs/data later today if I get done in time. I'm surprised no one is really talking about it since the factory MIVEC maps are really unoptimized for power.shiv
optimized it for emissions and spoolup second?Terry S
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Quick update while the dyno room cools down. Compared to the standard MIVEC tables, we've already been able to reduce spool-up by 300-350rpm. And we're not even done yet. As for top end, not only have we been able to virtually eliminate top end power roll-off, we've boosted the midrange power substantially.
As for midrange power, perhaps the most interesting tidbit of info I can offer at this point is that the car is *already matching stock VIII horsepower by just under 4000RPM!*
Graphs to follow later tonight....
-shiv
As for midrange power, perhaps the most interesting tidbit of info I can offer at this point is that the car is *already matching stock VIII horsepower by just under 4000RPM!*
Graphs to follow later tonight....
-shiv
Originally Posted by shiv@vishnu
Quick update while the dyno room cools down. Compared to the standard MIVEC tables, we've already been able to reduce spool-up by 300-350rpm. And we're not even done yet. As for top end, not only have we been able to virtually eliminate top end power roll-off, we've boosted the midrange power substantially.
As for midrange power, perhaps the most interesting tidbit of info I can offer at this point is that the car is *already matching stock VIII horsepower by just under 4000RPM!*
Graphs to follow later tonight....
-shiv
As for midrange power, perhaps the most interesting tidbit of info I can offer at this point is that the car is *already matching stock VIII horsepower by just under 4000RPM!*
Graphs to follow later tonight....
-shiv
Get that ecu mapped and the XEDE IX harnesses made as soon as you can
I gotta get this car to the point where I can slaughter my dad's new Carrera S.Terry S
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From: In my house
Originally Posted by shiv@vishnu
Quick update while the dyno room cools down. Compared to the standard MIVEC tables, we've already been able to reduce spool-up by 300-350rpm. And we're not even done yet. As for top end, not only have we been able to virtually eliminate top end power roll-off, we've boosted the midrange power substantially.
As for midrange power, perhaps the most interesting tidbit of info I can offer at this point is that the car is *already matching stock VIII horsepower by just under 4000RPM!*
Graphs to follow later tonight....
-shiv
As for midrange power, perhaps the most interesting tidbit of info I can offer at this point is that the car is *already matching stock VIII horsepower by just under 4000RPM!*
Graphs to follow later tonight....
-shiv
Originally Posted by shiv@vishnu
Remapping usually is the first step. This tells us what parameters need to be changed to get the desired outcome. Once that is established, we can see what needs to be modified/changed with the XEDE. MIVEC, for instance, is proving to be a very useful thing to manipulate judging by yesterday's and today's tuning. So useful that we plan on getting control of it via the XEDE. I'll post up some graphs/data later today if I get done in time. I'm surprised no one is really talking about it since the factory MIVEC maps are really unoptimized for power.shiv
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Ok... here's what we have so far.
These following runs compare our massaged MIVEC table (blue), the standard stock MIVEC table (red) and a Zero'd out MIVEC table (brown--no cam timing changes).
Here's torque and boost:
Here's whp:
Once again, this is a completely stock EVO 9. Only mod is an extensively remapped ECU.
'nuff said
These following runs compare our massaged MIVEC table (blue), the standard stock MIVEC table (red) and a Zero'd out MIVEC table (brown--no cam timing changes).
Here's torque and boost:
Here's whp:
Once again, this is a completely stock EVO 9. Only mod is an extensively remapped ECU.
'nuff said
Last edited by shiv@vishnu; Nov 24, 2005 at 09:43 AM.
oh man, impressive!
Shiv, i stole your data, and post it here> http://www.norcalevo.net/forums/view...?p=92404#92404
Shiv, i stole your data, and post it here> http://www.norcalevo.net/forums/view...?p=92404#92404
Originally Posted by shiv@vishnu
Stock vs. Our remap:
So if i'm not mistaken, thats 280wtq and 270whp on your dyno which equates to what ~400flyhp? Can you do a quick run in shootout mode?
Terry S (i need to just drive up there and hang out next to your dyno all day I think)
