g35gabby

people in the states have used CA18DE ECUs for ages. all you need is a tune for it to be incorporated properly.

DSM injectors state side are 450s, unless you get them out of an auto tragic car and then they are 390s. Lancer Evo injectors are 510CC, but on a regular bases show abnormal flow when put on a bench tester.

good chart I found

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omgwtf

Man than is an awesome write up thanks for that reply! I'll try it out this weekend and see what I can't figure out

omgwtf

Hey thanks man thats an awesome write up. ill try it this weekend injectors were supposed to be here today but they didnt show up

omgwtf

injectors still havent came in. i went to mess around with it anyways today and when i started it i had to feather the gas pedal to get it to stay running. if i tried to give it gas it would hit 1100 to 1200 then sputter and backfire through the intake. i notice a hissing sound which seems like its coming from the intake, maybe just the iacv working? but i sprayed maf cleaner around everywhere touching the intake and no change in idle like last time where the injectors meet the intake. the hissing got less noticeable when it was hot and the idle improved. it will rev if you lightly take the throttle up when warm but you still cant rev it hard without the stumbling and intake backfire

omgwtf

injectors are here it came with a sheet with all the flow patterns. anyone know how to translate the latency data to put it into nistune? im about to do some google surfing but maybe someone here will point it out first.

omgwtf

it says .5 milliseconds at 12 volts so im assuming i should set it to 500 for the latency?

g35gabby

that hissing sound is a vac leak and the reason your idle sucks.

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omgwtf

i cant get it to show where the leak is i tried pressurizing the system with an sir compressor and spraying around the intake with no results. i put in the 800 cc injectors and the car acts stupid and wants to cut off with nistune mapped to the injectors. idk what is going on i want a smoke tester but theyre a grand so im not gonna be buying one of those. ive never taken a car to anyone to get it fixed but this one might be my first defeat.

Croustibat

Remember it is a starting value, so it may need to tweaked. I would even say to set a lower latency like 450, as your injectors are working at near 14V, not 12. Pretty impressive low value for 800cc injectors though.


I did reread your first post and think i found the culprit.

"Greddy type S" > that is a bov, not the suspension, right ?

If it is the BOV, either recirc or bin it ... they are not double chamber/piston design, and will always leak on depression. That is not a problem if they are recirced, but it is one when not.

I am using a type RS, which is basically the same. I removed it before mapping the car. And since it is back on, my idle went 2 to 3 points richer ( unmetered air is entering so it should go leaner, i dont really understand that, but hey)

omgwtf

ok, havent had a chance to recirc the bov BUT i did call up autovaughn performance and they hooked me up with some advice, they seem to be good people there. i have the ca18de ecu and i had the ca18det maps loaded to it to run said ca18det. they told me to try switching my map to the ca18de one and so far with a little bit of minor tweaking it has made a big difference getting it running. i can actually drive the car now! more updates to follow after i get some time to mess with the car more

ANDY black s13

Bump for updates on a interesting thread,I got to do this soon,Just need fit new big ends ,

g35gabby

ca18de maps should lean way out in the top end I would think. Less the Nistune then adapts for boost, compression, and all that jazz?

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omgwtf

its actually a little bit rich throughout as ive been driving since monday. i had to fix an oil leak today but when i get time im going to start playing with the maps and see where i can get with it. its got a bit of a miss at low speeds but not bad at all. i need to pull out the speedo this weekend and try and rebuild it, it only works when its hot outside or if you smack the crap out of the dash until it starts to work hah. its gotta be a loose solder joint somewhere.

Croustibat

The problem was not the maps themselves, but the address file used with them. When programming the nistune with a ca18det address file, it basically was putting data in the wrong place, resulting in randomly working ECU.

Please also do not "think" when you actually dont know anything about what you are saying, thanks.

Every ECU interpolates values from the last programmed ones when going out of boundaries. When the current load goes higher than programmed load, it does not just fuel the same as before. Same goes for the timing, the ECU continues to add or remove timing the same way.

Fueling wise, all maps somewhat look the same. You always want stoeich/ lean as low load, bit rich on medium load and 11~12:1 at WOT. The problem is usually timing when turboing a car, you need to pull the timing as compressed air burns faster (same goes for an NA ecu used for a charged application). But oem maps are quite conservative at their ends, so it could do the trick.

A nistune only allows its user to modify everything the ECU previously stored in its eprom. It uses the same program.

g35gabby

That is EXACTLY why I said THINK, as I did not KNOW. That is why we have a word for the two different situations...... as THINK and KNOW do not mean the same thing.

Thanks for informing me how to tune a car. I haven't been doing this since I was 10 and my family was building turbo Buicks. I have burned my own Eprom's in the past so I had not need to used Nistune as previously stated.

I wasn't telling him anything, but more of asking the question to make sure that he wasn't leaning out in the top end.

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Croustibat

You were tuning turbo buicks ? And still have no clue about how engine management work ? What you describe is an alphaN engine management, and it does not work correctly with turbo/supercharged applications, hence why they use MAF / MAP management. You are supposed to know that if you tune that kind of engine...

The worst thing about it is that you dont even realize the implications of doing that. While it does not matter when talking about a TV show, we are talking time and money here. Giving advices based on your beliefs WILL lead to kill an engine someday. Are you prepared to pay for that ? Because when it happens, no matter how many "i think" you would have added to your sentences, it still is your fault, and some people may want to pay a visit to square things off.

So i am writing it again, if you dont know what you are talking about, DONT TRY TO GUESS.

Yes i am being harsh on purpose because you dont see what the problem is. Stick to what you know, learn more, but DONT GUESS.