How To Tune an Evo
Oct 22, 2007, 04:45 AM
#46
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I am lookign forward to a really nice write up on the tuning of a three-port with the load based boost control. (Hint hint, he he..) I have been lazy and am, this week hopefully, going to go full tilt and get it off the Hallman and onto the three port.
Oct 22, 2007, 05:09 AM
#47
MIVEC just increases the engine's efficiency by optimizing it's dynamic compression with regard to load and rpm. On a boosted engine this is done by late intake valve, with MIVEC maps at hands I suppose you can almost find the optimal valve schedule for a given boost profile. This makes me very sad not having this feature
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4b11slayer (Oct 18, 2016)
Oct 22, 2007, 09:33 AM
#53
nj1266,
Great post. Thanks for taking the time for making a nice write-up all in one place.
The only bad thing is that the moderators don't make many stickies in this forum. I think that's one of the main reasons people haven't written a comprehensive post like this before. People get tired of writing and having to write over and over.
Hoepfully, one of these will get stickied so that we can all add pertinent information and have one comprehensive tuning thread.
Thanks again for the time on a great post.
ERic
Great post. Thanks for taking the time for making a nice write-up all in one place.
The only bad thing is that the moderators don't make many stickies in this forum. I think that's one of the main reasons people haven't written a comprehensive post like this before. People get tired of writing and having to write over and over.
Hoepfully, one of these will get stickied so that we can all add pertinent information and have one comprehensive tuning thread.
Thanks again for the time on a great post.
ERic
Oct 22, 2007, 10:01 AM
#54
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yip Awesome job man!!
Thats why EvoM rocks so much knowledge from awesome peeps on these boards.
To much to learn not enough time.
thanks for a great write up.....
Sticky this MODS
Thats why EvoM rocks so much knowledge from awesome peeps on these boards.
To much to learn not enough time.
thanks for a great write up.....
Sticky this MODS
Oct 22, 2007, 11:28 AM
#56
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just put in what the data asks for... and then change your values to what the data gives you
more detailed... look at your log, find an AFR that you want to change. Find the corresponding section in your AFR map on your rom.... for example, your log at 5000 and 260 load says you are at 11.6 and you want to be at 11.4, you look on your AFR map in the rom see what the value is then....
first number in the calculator - Desired AFR = 11.4
second number in the calculator - Current value = may be 9.5 or whatever it is on your AFR map in your rom at that location
third number in the calculator - Logged AFR = 11.6
fourth number in the calculator is what is computed for you to enter in your fuel table to get you to your desired 11.4 afr... in this case the value it gives you is 9.3
more detailed... look at your log, find an AFR that you want to change. Find the corresponding section in your AFR map on your rom.... for example, your log at 5000 and 260 load says you are at 11.6 and you want to be at 11.4, you look on your AFR map in the rom see what the value is then....
first number in the calculator - Desired AFR = 11.4
second number in the calculator - Current value = may be 9.5 or whatever it is on your AFR map in your rom at that location
third number in the calculator - Logged AFR = 11.6
fourth number in the calculator is what is computed for you to enter in your fuel table to get you to your desired 11.4 afr... in this case the value it gives you is 9.3
Last edited by bigric09; Oct 22, 2007 at 11:51 AM.
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4b11slayer (Oct 18, 2016)
