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britishturbo
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« Reply #255 on: December 24, 2012, 01:32:08 PM »
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YOU TRICKED ME! I didn't see one lick of WOT in that pull!  Haha that was just part throttle on the way back. I was having too much fun wot to grab the phone Haha. I need to do another re cal on the Maf though its still a little too rich at high flow... so I'll grab some video on the next run... |
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jibberjive
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« Reply #256 on: December 25, 2012, 04:29:04 AM »
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Maybe I am not as far advanced in my tune yet to have the MAP limit problems, so until I see it as a problem I don't see a need to change it. Plus I don't really understand what is going on in that thread just yet,
Since the boost is based on load (and load is based on how much air comes in), the tweak doesn't just affect the boost, it affects the load cap/MAF limit stuff that you are talking about in your post #251 above. |
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marcellus
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« Reply #257 on: December 25, 2012, 05:06:23 PM »
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Since the boost is based on load (and load is based on how much air comes in), the tweak doesn't just affect the boost, it affects the load cap/MAF limit stuff that you are talking about in your post #251 above.
Well then it is surely something I need to address. I don't know why I was thinking that you guys were doing all that work just to be able to read past 22psi. It makes more sense now. What I am having problems with is rescaling certain axis. I would like to rescale the MAF and KFLF load axis so I can tune where the load actually is and not just leave it be past the 159 or whatever load they are at. I suspect since I wont be underscaling the MAF anymore it would be nice to actually tune all the range I will have. I have tried it in tunerpro, and it doesn't change anything. It leads me to believe its like all the other axis in the BIN/XDF and are defined somehow....kind of like the timing axis for load and rpm are. |
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prj
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« Reply #258 on: December 26, 2012, 12:26:14 PM »
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You will have to underscale (at least up top) or re-scale all the load in the ECU.
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britishturbo
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« Reply #259 on: January 17, 2013, 11:19:02 AM »
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So I'm still very much dialing things in on my single turbo setup. I will post everything I have done so far soon but for now here's a virtual dyno plot from my drive to work today. Still very much rich in the middle and getting timing dialed in still. This was at ~22psi. This is runnign the stock Hitachi sensor in a 3" pipe in blow through configuration. I have the MAF dialed in to the point where it works great, but maxes out around 5000 rpm lol ;-) I'kmm be upgrading to this guy soon http://vmptuning.com/index.php?p=product&id=1239 |
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britishturbo
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« Reply #260 on: January 17, 2013, 11:54:23 AM »
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Car is running a consistent 3.0 second FATS time in 3rd gear. Here's a plot from yesterday showing Boost and Injector duty cycle.  |
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prj
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« Reply #261 on: January 17, 2013, 01:31:32 PM »
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What turbo is that?
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Bische
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« Reply #263 on: January 17, 2013, 08:29:41 PM »
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I have to ask, does a b5 really weigh 3700lbs?
My b6 avant with me in(90kg) and half tank weighs 1680kg flat, thats 3700lbs on the spot...
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britishturbo
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« Reply #264 on: January 17, 2013, 08:36:47 PM »
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I have to ask, does a b5 really weigh 3700lbs?
My b6 avant with me in(90kg) and half tank weighs 1680kg flat, thats 3700lbs on the spot...
I had entered 3500 for the car plus 200 for me... Factory curb weight is listed as 3,384 and it had about 13 gallons of fuel in it (I had just put 10 gallons in it 30 miles were shown for range) , that's about 80 lbs, making it around 3465. I figure all the extra fuel lines and everything probably make it darn close to 3500 :-P So yeah, I'd guess my car was about 3700 ;-) |
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Bische
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« Reply #266 on: January 18, 2013, 02:08:18 AM »
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I had entered 3500 for the car plus 200 for me...
Factory curb weight is listed as 3,384 and it had about 13 gallons of fuel in it (I had just put 10 gallons in it 30 miles were shown for range) , that's about 80 lbs, making it around 3465.
I figure all the extra fuel lines and everything probably make it darn close to 3500 :-P
So yeah, I'd guess my car was about 3700 ;-)
I see, my avant is listed 3556lbs.. +200lb driver and fuel  I was under the impression that the b5 chassis was about 200lbs lighter vs. B6's, I guess the V6 and bling interior makes up for that;D Great numbers, what is the gearing in 3rd and final on that 01E? |
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britishturbo
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« Reply #267 on: January 18, 2013, 08:13:33 AM »
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I see, my avant is listed 3556lbs.. +200lb driver and fuel I was under the impression that the b5 chassis was about 200lbs lighter vs. B6's, I guess the V6 and bling interior makes up for that;D Great numbers, what is the gearing in 3rd and final on that 01E? I think the first generation of the B5 S4 was about 200lbs lighter, but the 2001 and 2002 year models (mine is a 2001.5) had heavier steel suspension uprights, whereas the earlier ones had aluminum uprights. So I guess you could say mine is the heavy brother haha. I have 3rd listed as 1.231 and the final drive as 4.11 in my Virtual Dyno setup. And thanks! I'm still very much learning about the ME7, I probably make 3 or 4 re tunes each day at this point lol |
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marcellus
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« Reply #268 on: January 20, 2013, 10:30:45 PM »
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It's been a month of work, and now I am back at it. What has been done can be seen in the projects section of this forum. There have been a lot of upgrades and I am back to "dialing in" my single.
Major change:
HPX MAF in blow thru
My first flash with the MAF working was a bit off and I was running too rich. I just dropped the KRKTE to compensate and that revealed a new issue. Almost as soon as I started building boost, I went hard limp...."torque 2 exceeded..." or whatever that was. Messed with the KFMIOP and KFMIRL and changed the Load axis a bit and all was good.
Now I am overboosting like crazy, and need to pay attention to the PID. It was too slick out to get any good logs, anything aggressive resulted in major wheelspin, and the overboosting wasn't helping any.
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britishturbo
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« Reply #269 on: January 21, 2013, 09:48:01 AM »
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It's been a month of work, and now I am back at it. What has been done can be seen in the projects section of this forum. There have been a lot of upgrades and I am back to "dialing in" my single.
Major change:
HPX MAF in blow thru
My first flash with the MAF working was a bit off and I was running too rich. I just dropped the KRKTE to compensate and that revealed a new issue. Almost as soon as I started building boost, I went hard limp...."torque 2 exceeded..." or whatever that was. Messed with the KFMIOP and KFMIRL and changed the Load axis a bit and all was good.
Now I am overboosting like crazy, and need to pay attention to the PID. It was too slick out to get any good logs, anything aggressive resulted in major wheelspin, and the overboosting wasn't helping any.
Awesome, my HPX Blow Through MAF arrives tomorrow so I'll be retuning then :-) |
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