my evo winter 08/09 teardown!

niceeeeeeeee :slight_smile:

any other evo owners that want to pull all the EGR/evap crap as well, let me know. ill disable it all for u.

:tup: I am pulling the EGR, i haven’t looked into any of the evap crap yet. Post up what you pull, so I can see how big it is please! The more stuff you pull, the merrier!

as far as i know, its somewhere in the range of 15lbs i think. ill let ya know for sure once i get it all out

I love the fact that it seems that the majority of evo owners are in the engineering field and because of that it seems that innovations can happen that much quicker. by the way, the car is coming along great.

mmm stock ecu hackery!

what other things can you disable and still pass an inspection/ecu scan? just curious

Brian

since i have access to about every code in the ECU now, i can disable a lot.
hard to read, but those are most of them

cool. :slight_smile:

Brian

thanks :wink:

this also lets me disable that pesky P0300 random misfire code which is such a bitch to deal with on these cars.

(paging bueme, i cant get rid of that pesky CEL on your car :))

YES!!!

if u have a tactrix cable, pull your map and send me it. ill modify it for u

being able to edit the factory stuff is nice. i have full control over my ecu and though its ancient 1987 chrysler turbo stuff, its nice to be able to go in and add things and tune to changes without losing important features like the factory knock detection setup and stuff like that. some guys have added some code mods as well like blinking the CEL when the ecu is pulling timing from knock, launch limiters, alky/n20 control, etc.

Brian

we have the same thing!! lol

i too have the CEL flash when my knock count goes above 3, lol.

we also have a NLTS mod, which is absolutely awesome. especially since i run 30psi, between shifts it was dropping to 18 lbs. the only thing that sucks is the wastegate never closes and its hell going down the road.

i ALWAYS was thinking at this point i would have to go to AEM no matter what. but with all the advances on the stock ecu this past year, the options are limitless. the only problem that im going to run into is im going to max out the load values (i was at 360 this past season) since they only go up to 380. but i think i have some options to get by that as well.

cool.

yeah lots of people in the old school turbo chrysler community used to switch to standalones or do cobblejobs with rising rate regulators and stuff for years cause the people that knew the code and how to modify it were turds and wouldnt share. not anymore. others took the reigns and improved on things.

i forgot one mod… a crude antilag based on the boost goal. when you go to WOT, the code pulls timing based on an editable table till the boost meets its target. works pretty good.

how do you compensate for larger injectors? scaling? i have to scale a handful of tables to rescale for different map sensors and larger injectors. the stock ecu doesnt have a problem running 82lb injectors but i havent seen much above that yet.

just curious, how will you get around that load table limit?

Brian

to scale the injectors, we trick the ECU thinking we are running smaller injectors. like when i ran my 880’s my ECU thought i was running 750’s. after that we just adjust our battery voltage latencies to the proper settings. it takes a lot of tinkering with, but once u get the hang of it, its fairly simple. just a numbers game…

if i max out the load values at 380, i can cut out the screen in the MAF which will drop the load values around to 320ish or so. would just need to tune the car without the MAF honeycomb

:tup:

gotcha. yeah i have to adjust the latency table as well. i dont have to trick the ecu, just rescale the tables that the output is injector pulsewidth.

so i assume you have to shift your timing values so that you are getting the correct timing.

ive never dealt with a MAF car, just speed density. i forgot about having to modify/swap out the MAF when it reaches its limit.

Brian

yep, all that little stuff that goes along with it has to get adjusted as well.

:tup:, merry xmas!

i just bought this, JDM MAP sensor to log boost directly through the ECU

http://www.speedelement.com/images/parts/mitsu_3barmaf1.jpg

cool. when you log, will it log what load you are at vs RPM for easy tuning changes?

I need to convert my car over to different engine management every once in a while so i can learn to tune the different types. its something that interests me.

Merry Christmas as well.

Brian