Fuel system SOLUTIONS...

[LinuxRacr]

Testing results thus far:

Ok, here is what I found out:

I went out for a drive yesterday and the 1st time I hit it, I got like 16 A/F ratio? Damn... Well, I drove down the street and hit it again and started getting 10's and 11's. Every time after that, that is what I was getting. I was at 6 zero fuel calibration at that time, and my switch was set to come on at .83. Well I stopped at Autozone to get some super glue, and came back out and talked to MPNick on the phone and told him how things were going. I started up the car, moved my switch point down to .75, and got on the road. I started leaning out. Every time I hit it, I would lean out. WTF happened? Well, I finally get home, and call Nick. We talk for a sec, and then I remember that the Green LED I have hooked up to let me know when the Turbo Module activated has a resitor in line with it. This is in line with the orange wire going to the Turbo Module. Well this morning I took the LED and resistor out of the circuit, and went to take my daughter to Daycare. I go to hit it, and long before boost, I bog really bad! WTF? I do it again, and notice that my wideband is off the scale rich. It didn't do that yesterday. This thing is adding a shitload of fuel. So after driving around, I bring my zero fuel calibaration down to 4. I hit it, and still bog like crazy. I moved my switch point down, and then realized that I needed to move it up because it was coming on too soon. As it stands now, I put Bigg Tim's map back in with all the 2's, and I still have quite a bit of tuning to do.

So in sumation:

*The Turbo Module is now adding a shitload of fuel...
*The green led with the resistor caused some circuit latching problems, and therefore has been taken out...
*I have a lot of tuning to do!

 

[acidbug]

Ok, here is what I found out:

I went out for a drive yesterday and the 1st time I hit it, I got like 16 A/F ratio? Damn... Well, I drove down the street and hit it again and started getting 10's and 11's. Every time after that, that is what I was getting. I was at 6 zero fuel calibration at that time, and my switch was set to come on at .83. Well I stopped at Autozone to get some super glue, and came back out and talked to MPNick on the phone and told him how things were going. I started up the car, moved my switch point down to .75, and got on the road. I started leaning out. Every time I hit it, I would lean out. WTF happened? Well, I finally get home, and call Nick. We talk for a sec, and then I remember that the Green LED I have hooked up to let me know when the Turbo Module activated has a resitor in line with it. This is in line with the orange wire going to the Turbo Module. Well this morning I took the LED and resistor out of the circuit, and went to take my daughter to Daycare. I go to hit it, and long before boost, I bog really bad! WTF? I do it again, and notice that my wideband is off the scale rich. It didn't do that yesterday. This thing is adding a shitload of fuel. So after driving around, I bring my zero fuel calibaration down to 4. I hit it, and still bog like crazy. I moved my switch point down, and then realized that I needed to move it up because it was coming on too soon. As it stands now, I put Bigg Tim's map back in with all the 2's, and I still have quite a bit of tuning to do.

So in sumation:

*The Turbo Module is now adding a shitload of fuel...
*The green led with the resistor caused some circuit latching problems, and therefore has been taken out...
*I have a lot of tuning to do!

(laugh)

 

[Bigg Tim]

Yeah dude, Nick said it would add a s*** load of fuel. You will probably need the fuel cal down at 2 or 3 and play there. The surging is too much fuel being dumped. I have that and I need to tune it out, but not much time to do it. I have my amp column at .50's when the switch kicks on and it's still too much fuel. I need to lower my fuel cal and play some more when I get some time. Good luck, I guess you don't need the xtra injectors now!

 

[acidbug]

I personally think he will need the extra injectors sooner than he thinks..After he gets it tuned..for 8psi..he is gonna want to raise the boost..and i don't think the stock injectors will be able to supply enough fuel over 10psi on a t3.

But on a smaller turbo like mines..should be fine till 12psi..i know..b/c i have boost crept there..and held 11's a/f.

Chas

 

[Bigg Tim]

I personally think he will need the extra injectors sooner than he thinks..After he gets it tuned..for 8psi..he is gonna want to raise the boost..and i don't think the stock injectors will be able to supply enough fuel over 10psi on a t3.

But on a smaller turbo like mines..should be fine till 12psi..i know..b/c i have boost crept there..and held 11's a/f.

Chas

I don't know, Linux seems like a pretty careful person. He has already went through a couple of motor, I don't think he wants to do it again. If he does get boost happy, then hell yeah get the xtra ones and lets see what that forged motor can do!!!

 

[LinuxRacr]

Yeah, I need to see what this motor can do before it's time is up.

 

[smp3000]

Yeah Pat change those to 2's and 3's.. Mine are actually mainly 2's right now in that area, and at full throttle/full boost I'm off the charts rich for about 2 seconds then it creeps upt o the 11's- so I could even take more out of that section... The TM does add a shitload of fuel so don't be afraid to make a lot of those mid numbers low.

Did you change youe ignition map at all?

Also, not to sound dumb guys but where do you set the TM to go on at? Like Linux said it was at .83 and some of you are at .63.. What exactly is this referring to and where can I see where mie is at?

 

[acidbug]

Also, not to sound dumb guys but where do you set the TM to go on at? Like Linux said it was at .83 and some of you are at .63.. What exactly is this referring to and where can I see where mie is at?

Well..what you wanna do..is open the mpi tuner software..than click on Global settings..Than on Switch. Look for the one lable switch. And What you wanna do..is have someone in the car lookin at the laptop..and you at the boost guage..when you hit boost.. you tell them to look at the amp colun..and tell you what number it read.

Than you go to the switch area..and change it appropriately...

I have mine set to 63..w/ a ihi turbo.

Chas

 

[LinuxRacr]

What Chas forgot to mention above is that you will need to be looking at your ignition map to see the AMP scale. Just look at where you boost gauge crosses the boost threshold, and look at where the red box is in the 1x16 AMP scale, and set it somewhere in that area.

BTW, I am now at 3 zero fuel calibration. I was starting to overheat last evening for some reason (went up to 234 F, temp needle was just a little over half, close to 3/4ths of the way up), so the testing ended. I added some coolant last night, and will be testing/tuning again this evening on the way to work.

 

[smp3000]

Wow man...hmmmm overheating???? Tell me what you find out.... So much R&D!!! lol

My situation is pretty odd right now as well. The wastegate that I ended up getting was a T28RS wastegate because it seems the wastegate Corky had put on our T3's was something custom to innovative turbo's... Can't buy it anywhere and the normal T3 inegral wastegate isn't anyhting like what we have... So right now I'm using a slightly modded T28 adjustable wastegate. It's nearly the same but hte actuator arm is bent and not the same length so there's where I'm running ton problems... As of right now I'm not starting to spool until over 4K!!!!! But then it goes real fast.

It's because the arm is a little too long and seems to be letting some of the gasses out of the flapper all the time- so it's taking more Revs to get the psi up. I need to get get that innovative wastegate! Or I need to somehow figure out how to shorten this rod for the flapper's sake but not raise the psi.. hmmm Sorry for the thread jack!

 

[LinuxRacr]

Here is the latest...

I am down to 1 zero fuel calibration, and I still bog when I hit boost. Not as bad, but I bog. I think it could have something to do with the in-line fuel pump I have installed still, cause Chas is at 4 Zero fuel calibration. I had to put a 5 in my idle square to get it not to run lean at idle. I also notice that my engine coolant temp display in my PDA Dyno went down to 39..lol....when the switch was triggered! I notice a that my J&S is lighting up like a christmas tree when I bog, and hold the gas. If I hold it long enough, I will take off, but still be in the low 10-9 range in my A/F ratios at 7-8 PSI. I have pulled some more timing, and it doesn't light up as much. I will also be turning up the boost a little.

In sumation: It looks like I may have to take that Pierburg In-lin fuel pump out!

My current Maps, and runlog are below:
1. Analog Fuel Map
2. Ignition Map
3. Playback Log

 

[Bigg Tim]

I am down to 1 zero fuel calibration, and I still bog when I hit boost. Not as bad, but I bog. I think it could have something to do with the in-line fuel pump I have installed still, cause Chas is at 4 Zero fuel calibration. I had to put a 5 in my idle square to get it not to run lean at idle. I also notice that my engine coolant temp display in my PDA Dyno went down to 39..lol....when the switch was triggered! I notice a that my J&S is lighting up like a christmas tree when I bog, and hold the gas. If I hold it long enough, I will take off, but still be in the low 10-9 range in my A/F ratios at 7-8 PSI. I have pulled some more timing, and it doesn't light up as much. I will also be turning up the boost a little.

In sumation: It looks like I may have to take that Pierburg In-lin fuel pump out!

My current Maps, and runlog are below:
1. Analog Fuel Map
2. Ignition Map
3. Playback Log

It still seems like you have to much fuel in the map. You have higher numbers with the newer TM than I do with the old one. Have you went to lower numbers with a higher fuel cal yet? I know you know how do to it, but 4's seem to high compared to what I have.

 

[acidbug]

I am down to 1 zero fuel calibration, and I still bog when I hit boost. Not as bad, but I bog. I think it could have something to do with the in-line fuel pump I have installed still, cause Chas is at 4 Zero fuel calibration. I had to put a 5 in my idle square to get it not to run lean at idle. I also notice that my engine coolant temp display in my PDA Dyno went down to 39..lol....when the switch was triggered! I notice a that my J&S is lighting up like a christmas tree when I bog, and hold the gas. If I hold it long enough, I will take off, but still be in the low 10-9 range in my A/F ratios at 7-8 PSI. I have pulled some more timing, and it doesn't light up as much. I will also be turning up the boost a little.

In sumation: It looks like I may have to take that Pierburg In-lin fuel pump out!

Linux.

Couple of things.
1. I am going to drop my analog fuel cal again Prob to 3..to get my numbers a little better.
2. Remove the inline fuel pump.
3. In the actual fuel map... 8X16 you idle column..is all messed up. You need to edit them a bit..You wanna have 1 number steady throught the column..this will help with cold starts.
4. Also in the fuel map. The first Row. Should all be zero's b/c it will affect startup. (aka my car took longer to crank)

Not sure why you are detonating while you are runnin so rich? I am confused b/c the same thing is happening with me..The more i lean it out..the more i seem to detonate..and have to pull more timing. I have a total of -10 worth of timing on my ignition map..and still detonating???

Chas

 

[LinuxRacr]

Chas,

I talked to Nick earlier today, and told him about the detonation. It is accually pre-ignition due to the insanely rich condition when the switch hits. (eek2) What happens is that the raw fuel left over gets carried over to the next ignition cycle, and ping city!

Tim,

The numbers I have entered are a must to keep me from detonating while not in boost. Pinging while not in boost is what I saw with lower numbers. As I lower the Fuel Zero Calibration, I keep having to richen up the numbers. Where you see 4's I now have 6's, and my Fuel Zero Calibration is now at -1! (eek2)(eek2)

Chas, I think I may have to remove the extra fuel pump. Are you smoother now?

 

[acidbug]

Hell yeah..Even got my a/f into the 12's..

I posted my new maps..in my thread.

also..i am not sure on that whole preignition thing..the more fuel i have been pulling it seems like the more timing i have to pull out. I have had to pull -11 timing.

chas

 

[LinuxRacr]

Does it still do the Bogg-Jerk when you hit the switch?

 

[505zoom]

Does it still do the Bogg-Jerk when you hit the switch?

Mine does that when the switch turns off, not when I hit it. Nasty little surge.

 

[LinuxRacr]

Yeah, the updated TM Box adds sick fuel! (eek2)

 

[505zoom]

Yeah, the updated TM Box adds sick fuel! (eek2)

So you are surging when you hit the switch, not the other way around like me right? I think that I still need some work on the switch points.

 

[505zoom]

Get on YIM or AIM Pat, if at all possible.