sorry to hear man...how long before you get the ecu al fixed?

 

Shawn what program are you using? I was under the impression that you had some big injectors and fuel controller. I can't wait to see what your setup does after fixing the problem.

 

And yet, I'm still jealous...:help

 

Sorry to hear man, good luck with the reprogram. Let us know when you get that bad boy over 300, and make some vids of the dyno runs if you can.

 

bah minor setback man get that ecu redone and relly wail on it. mmm man i gotta turn up the boost soon

 

I personally think your setup is good for 320+ RWHP with the ECU tunned correctly. From what i saw yesterday the power was very smooth and just kept going up the whole time.

 

The car blew white smoke? I have never seen or heard of that but my tuning experience is pretty much limited to a 74 Ford and motorcycles and jet skis. Is it something that turbo motors tend to do when they run lean or is it all motors that are making high power?

 

I should have a new ecu tune late next week.. then I'll get it back on the dyno to see what it can do. The program I'm using is for the 740cc injectors and Z32 maf but it was tuned for a different turbo. I got the Flow rates for my new turbo and they said it's not a problem.. they'll send out a new chip for me. Yeah.. it blew white smoke.. running lean.

 

Ok I'm a newbie to this much tuning and this might sound retarded, but you never learn unless you ask (or lurk around ALOT). Why can't you just move your MAF sensor to a spot where it picks up more air than is actually going?

 

And yet, I'm still jealous...:help

I second that! Sorry to hear it though man. Just get it fixed and then you'll be making me REALLY jealous.

 

Ok I'm a newbie to this much tuning and this might sound retarded, but you never learn unless you ask (or lurk around ALOT). Why can't you just move your MAF sensor to a spot where it picks up more air than is actually going?

mostly cuz thats impossible... hes got a really big turbo sucking air through that Mafs... wheres he gonna put it to read more?

 

Turbo size shouldn't matter on ECU tuning with a MAF.

Think about it...the MAF measures the actual amount of air coming into the engine...A/F ratio is just that amount of air, divided by the amount of fuel the ECU gives it. The ECU should be able to convert a voltage from a MAF into a flowrate of air, based on the size of the MAF, determine the appropriate flowrate of fuel, and convert that into an injector pulsewidth, based on the size of the injectors. What it really does is cut out the middle steps...convert MAF voltage directly into injector pulsewidth.

Did you move the MAF in your piping, or change the piping around it? If so, I'd think that is more likely to be the problem. MAFs are tricky sometimes...the measured voltage for a certain airflow will change based on where the nearest turn is, what angle the MAF is at, etc.

Dennis

 

The Maf is in the factory location for an SR. We found out what the problem is though.. originally when I first got the ECU retuned and my injectors/maf installed, one of the injectors was leaking fuel through the O-ring. I didnt know that and thought that the program was just running too rich since black smoke was coming from the exhaust. So, when I sent the ECU back to have the programmer check it, the programmer leaned out the program to try and fix the problem. I figured out the o-ring problem and fixed that and when I got the ECU back.. thought nothing of it.. since it seemed to be running fine. Well.. long story short.. they are sending me a new program which should richen up the mixture.