How to: Evo 8 ECU into 1G DSM

danl · 07-29-2009, 01:28 AM

A couple people have shown interest so I have decided to put this out there for general consumption. This is something that I had worked on over the winter and had done by early spring. I finally got around to plugging it in a couple weeks ago. The car starts up and runs beautifully. Dare I say that it runs better than an eprom 1g ECU. Those of you familiar with the Evo ECU development know full well why I decided to jump to this platform. I haven't worked out the ROM specifics yet but it looks like the EDM rom is the one you want to be running as it has less OBD2 checks and has less emissions devices to cause you trouble. It also won't throw the two CAS codes that the USDM rom will. Also a word of caution, and you will see the note in the schematic, buy a new Evo 8 knock sensor and use that in place of the 1g knock sensor. Other than that you can apply all the Evo ECU tricks, wire in a GM BCS, run any MAP sensor you like etc. You will have to run a 2g VSS (or maybe an evo) to take advantage of using the VSS for gear based boost control.

Please excuse my lack of internet skills. I have a link to a larger picture for the schematic below the small image.

http://mysite.verizon.net/vzeuc4qk/s...schematic1.JPG

http://mysite.verizon.net/vzeuc4qk/s...tures/ecu3.JPG

http://mysite.verizon.net/vzeuc4qk/s...tures/ecu2.JPG

http://mysite.verizon.net/vzeuc4qk/s...tures/ecu1.JPG

EDIT:
You also need the proverbial first (actually second) start-up video.
http://www.youtube.com/watch?v=andqZUhnpJg

Marco · 07-29-2009, 06:02 AM

Sweeet, I now I need an evo ECU for my beat up 1g project.

I must have been sleeping but there is now full MAP sensor support for the EVO ecu? you no longer have to run the MAF?

Who is selling one? thanks Dan, this is a pretty wicked idea, awesome job.

danl · 07-30-2009, 11:09 PM

Yes you can wire in any MAP sensor. I will have to do a writeup someday on how to properly scale it in ecuflash and make a function in evoscan. I consider speed density to be beta right now, but you can do it for sure.

Aaron@English · 07-31-2009, 01:47 AM

Speed density is a combo of DSMlink and AEM...not too bad. I am with you though Dan, it is kinda Beta but not as bad as V3 SD.

Fathouse · 07-31-2009, 04:13 AM

Its maybe be in Beta, but my shit runs great on SD so far.

danl · 07-31-2009, 02:04 PM

That is good to hear fathouse. If you feel like sharing how you do it feel free to post up.

I want to convert, but don't want to introduce any external sources of "problems" while I am testing this car out.

Fathouse · 07-31-2009, 08:07 PM

Quote:

Originally Posted by danl

That is good to hear fathouse. If you feel like sharing how you do it feel free to post up.

I want to convert, but don't want to introduce any external sources of "problems" while I am testing this car out.

Ask Aaron, he is the only reason my car runs.

The patchs and such are simple enough. Figuring out how to tune it was a little tricky at first trying to get part throttle boost stuff figured out. It def changed all the load values and such. This was a 35r car on e85.

The car now drives/idles much better than it ever did with the maf.

Fathouse

danl · 07-31-2009, 10:55 PM

Wow that is promising. The link in your signature, is that on SD? Also stock engine no?

Fathouse · 08-01-2009, 12:01 AM

Quote:

Originally Posted by danl

Wow that is promising. The link in your signature, is that on SD? Also stock engine no?

No, the info in my sig is still on the maf. Yes it had a stock engine/head, etc on the car.

The car def picked up power taking off the maf though, per the logs if I remeber right ~30hp up top. Took it to the track once and the turbo blew up. Did coast to a 11.0 @ 112 I think

The engine is built, crower/weisco, I am halfway done with the head porting, and a 6262 has been ordered. Gonna make a new header and such for it also. It will run 9's on the stock ecu, on e85, in street trim.

Sry for being off topic, Btw, evo ecu in a dsm really fucking rules man.

Fathouse

logic · 08-02-2009, 04:26 PM

FYI, this conversation is going on over at EvoM as well, in case anyone wants to follow even more about this. (Dan, I noticed your account was disabled, but I have a really hard time believing you're not involved in that.

0xDEAD?)

Keeping on top of this kind of thing is getting more and more "interesting"; I'm tracking topics related to Mitsu (and related) ECUs on no less than ten forums now. (EvoM, 'tuners, geekmapped, aktivematrix, pgmfi, lancer-register, club3g, a hayabusa ECU-hacking board, OpenECU, and now over here.) Jesus H. Christ on a pogostick, no wonder I don't get anything done these days.

Marco, like Dan said, almost any absolute pressure MAP sensor will do, but the easiest to get up and running without knowing much about the code are the JDM MAP sensor (3-ish bar; I'm almost positive it's the same sensor as on the Evo X) and the Omni 4-bar sensor (the Honda guys seem to like their stuff, and I believe Tom and Dave just added support for their 4-bar sensor to V3); it doesn't hurt that both are plug-and-play electrically, and fit in the stock MAP location. That and a few small adjustments to the ECU gets you basic boost logging; add an IAT sensor to the mix, as well as a few additional patches, and you've got SD.

(I'll hopefully have my own car converted over in a week or so, just need to push myself away from the keyboard long enough to wire up the IAT sensor.)