My UTEC is installed and so far all I've done is reconfigure the MAF max to 2200 Hz (to accomodate a race gas WR turbo setup in my future) and keep everything at ECU (no OLF). I had an SAFC before the UTEC which I used to adjust AFR into the low 11s. With the UTEC in neutral right now my WOT AFRs are in the 10.5-10.8 range in 3rd gear. I have a Dynoflash mail-in tune and plan to keep it with the UTEC.

Please let me know what you think about the timing numbers. I have no idea how stock timing would compare or whether these numbers are about right, very conservative, moderately aggressive, etc.

Also, out of curiousity, why is mod MAF different than incoming MAF with no changes to fueling? Do these MAF numbers look about right for an 9.8 hot side Buschur Stage 4 car (264/272) running about 20 psi tapering to 18 psi or so at redline? It was probably in the low 80s at the time and a slightly humid.

(EDIT: I'm not sure about the best way to post a log. If you want a better formatted version, please click on the attachment.)

EXT Load Knock Mod Mod Mod
RPM MAP MAF TPS Site Count Ign#1 Inj#1 Ign Fuel Boost MAF
psia Hz % deg duty deg % (OL) Hz

2281 +24.9 314 100 10 00 +14.4 13.6 ECU. +0.0 ECU. 328
2415 +24.7 344 100 10 00 +13.4 15.0 ECU. +0.0 ECU. 342
2478 +24.7 372 100 10 00 +11.4 18.2 ECU. +0.0 ECU. 398
2594 +24.5 407 100 10 00 +9.3 18.3 ECU. +0.0 ECU. 445
2666 +24.5 466 100 10 00 +8.2 20.0 ECU. +0.0 ECU. 497
2796 +24.5 519 100 10 00 +9.0 23.9 ECU. +0.0 ECU. 544
2921 +24.5 585 100 10 00 +7.9 27.2 ECU. +0.0 ECU. 605
3011 +24.5 665 100 10 00 +7.2 32.1 ECU. +0.0 ECU. 739
3150 +24.5 777 100 10 00 +7.7 37.0 ECU. +0.0 ECU. 844
3346 +24.3 860 100 10 00 +7.8 45.6 ECU. +0.0 ECU. 827
3523 +24.3 929 100 10 00 +7.7 48.6 ECU. +0.0 ECU. 844
3650 +24.5 982 100 20 00 +6.0 50.7 ECU. +0.0 ECU. 816
3871 +24.7 996 100 20 00 +6.5 54.1 ECU. +0.0 ECU. 1004
4055 +24.9 1061 100 30 00 +6.5 55.5 ECU. +0.0 ECU. 1322
4161 +24.9 1111 100 30 00 +6.4 56.8 ECU. +0.0 ECU. 1008
4345 +24.7 1138 100 30 00 +6.5 58.4 ECU. +0.0 ECU. 984
4553 +24.9 1216 100 30 00 +6.9 63.0 ECU. +0.0 ECU. 1275
4714 +24.9 1291 100 40 00 +6.9 62.2 ECU. +0.0 ECU. 1381
4866 +24.5 1358 100 40 00 +7.7 65.0 ECU. +0.0 ECU. 1308
5065 +24.5 1358 100 40 00 +7.8 67.3 ECU. +0.0 ECU. 1237
5232 +24.1 1416 100 40 00 +8.2 67.7 ECU. +0.0 ECU. 1366
5367 +24.1 1461 100 50 00 +9.4 68.3 ECU. +0.0 ECU. 1582
5574 +24.3 1538 100 50 00 +8.3 72.3 ECU. +0.0 ECU. 1552
5698 +24.5 1515 100 50 00 +10.3 71.3 ECU. +0.0 ECU. 1445
5889 +24.7 1572 100 50 00 +10.6 74.8 ECU. +0.0 ECU. 1552
6006 +24.7 1562 100 60 00 +11.6 72.8 ECU. +0.0 ECU. 1582
6195 +24.9 1628 100 60 00 +12.7 74.6 ECU. +0.0 ECU. 1552
6313 +25.1 1644 100 60 00 +12.7 75.3 ECU. +0.0 ECU. 1736
6435 +24.9 1683 100 60 00 +14.3 75.5 ECU. +0.0 ECU. 1592
6587 +24.9 1672 100 60 00 +15.3 75.8 ECU. +0.0 ECU. 1582
6720 +24.5 1718 100 60 00 +15.3 81.0 ECU. +0.0 ECU. 1760
6872 +24.5 1724 100 70 00 +15.9 78.9 ECU. +0.0 ECU. 1773
6988 +24.7 1736 100 70 00 +17.7 83.8 ECU. +0.0 ECU. 1700
7137 +24.7 1760 100 70 00 +17.4 82.3 ECU. +0.0 ECU. 1773
7262 +24.7 1760 100 70 00 +18.9 82.2 ECU. +0.0 ECU. 1748
7358 +24.5 1760 100 70 00 +18.7 83.2 ECU. +0.0 ECU. 1736
7490 +24.5 1779 100 70 00 +19.6 76.3 ECU. +0.0 ECU. 1908
7610 +24.7 1779 100 70 00 +20.1 77.4 ECU. +0.0 ECU. 1736
7751 +24.7 1785 100 70 00 +20.0 80.2 ECU. +0.0 ECU. 1811

Thanks.

 

it looks like your car runs very smooth. Timing looks great. Is this race gas?? Your Hz is only going to 1700ish. Turn your boost up to about 23. (if on good gas) Most of us can pull 1900 Hz of air on the stock turbo. Ive even hit 2100 Hz @ 27Psi but quickly taper to 24. Also notice that you never hit 100% load. your MAX 1700 Hz is preventing it. There is an adjustment in the UTEC that will fix this, i just forget what it is. Make sure your air filter is not restrictive and keeping the extra air from entering..........RRR

 

My buschur intake/intercooler/pipes would typically hit 1700hz @21psi or so.. He's not experiencing anything unusual for the buschur components, with higher boost he'll hit 2100hz (23 or so psi) since I had basically the same components (minus the injectors and cams) at the time..

20 degrees of timing is "nominal" for this combo, with 20psi/21psi of boost, you can approach as much as 23 degrees if you do it a little bit at a time and 7-9 degrees of timing at peak torque (just after peak boost) so this is pretty much close to being optimal for the flash.. So when you put your "race gas" and slightly higher boost, there's definitely alot more in there..

 

And the UTEC always affects MAF reading "Slightly" its the nature of adding a device between the input and output.. Since its a few percent off, and isn't generally more than 80hz difference at higher rpm, it won't really affect anything, The UTEC really should have a slight smoothing algorithm that you can alter and add, this would allow anomolous shifts in MAF reading to not be passed out (and could assist users who might otherwise need an EIDS as a side-effect of having the feature)

 

oh and one more thing, get the wideband. I would never tune without it. Its CRITICAL when tuning!! RRR

 

I suspect he has a non-turboXS Wideband since he seems to already be aware of what his AFR's are running.. but thats a good point, if you don't have one, don't attempt to retune the car until you can get access to one.

 

This is on 94 octane.

I do have an LM1 wideband, so I know where I am on AFR. In addition to logging software, I have a digital gauge mounted at eye level on the windshield with a suction cup.

Jack's comment about hitting 2100 Hz at 23 psi on the stock turbo concerns me. I have a WR turbo arriving on Monday and I set the max MAF at 2200 with the idea that that would give me enough headroom to run 23 psi on the WR with a mix of race/pump gas. Maybe I need a higher max MAF? I guess when it arrives I'll see where the MAF readings are with the WR at low boost and then make a judgment.

 

you'll have to wait and see.. Set it for 2300hz, remember your boost isn't going to be much higher than the OE turbo, it'll just hold it to a higher RPM, and since the turbo should be more efficient, it should be more dense, so PSI won't be much higher, but the air mass should be, so you should see a peak of 2200-2400hz or so.. Its not unusual to see 3000hz on big turbo cars.. Start with something higher, tune it and see what the max you hit is, then reduce it slightly so your where you want to be... Nobody is really sure how much more efficient the new turbo is yet..

And remember High PSI out of its efficiency range, may result in the same air mass as a more efficient turbo at lower PSI, so in reality you may not need to run as high a boost.

 

The only thing the max hertz reading actually is used for is so it will let the car know what "load point" you are in correct? I have mine set at 2500 hertz or so for my pump map and right now running it only at 18 pounds... I will have it around 20-21 later I am sure on pump. Right now the hertz is right around 2100 but with not much done to timing, fuel is done though but timing is where more power is to be had and a few more pounds I am guessing will get it to be close to 2300ish hertz.

 

That is correct, it sets the "Scale" of your map cells.. so 100% would be just over the highest MAF Frequency you would get with your highest boost.

 

Just for comparison to the above log when I got my UTEC about a month ago and still had the stock turbo, here is my most recent 3rd gear log with the WR turbo.

2174,+24.7, 304,100, 10, 00, +14.9, 12.1,ECU. , +0.0,ECU. , 227, 00.00
2220,+24.7, 303,100, 10, 00, +13.2, 12.3,ECU. , +0.0,ECU. , 326, 00.00
2377,+24.7, 342,100, 10, 00, +12.0, 14.1,ECU. , -1.0,ECU. , 361, 00.00
2498,+24.9, 381,100, 10, 00, +11.3, 15.5,ECU. , -1.6,ECU. , 387, 00.00
2660,+24.9, 426,100, 10, 00, +9.3, 17.1,ECU. , -1.8,ECU. , 487, 00.00
2768,+24.9, 476,100, 10, 00, +9.4, 19.8,ECU. , -2.0,ECU. , 529, 00.00
2849,+24.9, 534,100, 10, 00, +9.3, 22.0,ECU. , -2.0,ECU. , 527, 00.00
2989,+24.9, 584,100, 10, 00, +8.2, 24.4,ECU. , -2.0,ECU. , 636, 00.00
3124,+24.7, 690,100, 10, 00, +7.6, 28.5, +6.7, -1.8,ECU. , 684, 00.00
3239,+24.9, 792,100, 10, 00, +7.8, 34.9, +6.0, -1.5,ECU. , 868, 00.00
3401,+24.7, 957,100, 10, 00, +7.4, 40.3, +5.8, -0.9,ECU. , 919, 00.00
3607,+24.9,1131,100, 20, 00, +7.4, 50.7, +5.8, -0.4,ECU. , 788, 00.00
3770,+25.1,1141,100, 20, 00, +7.5, 49.9, +6.0, -0.6,ECU. , 988, 00.00
3972,+25.1,1168,100, 30, 00, +7.5, 51.9, +6.1, -4.5,ECU. , 909, 00.00
4140,+25.3,1243,100, 40, 00, +7.4, 52.9, +6.2, -5.5,ECU. ,1072, 00.00
4374,+25.1,1246,100, 40, 00, +7.4, 53.5, +6.1, -7.3,ECU. ,1329, 00.00
4504,+25.3,1282,100, 40, 00, +7.7, 59.1, +6.0, -9.9,ECU. ,1404, 00.00
4708,+25.1,1298,100, 40, 00, +7.9, 56.9, +6.0, -9.3,ECU. ,1315, 00.00
4887,+24.9,1351,100, 50, 00, +8.8, 60.3, +6.3, -9.5,ECU. ,1358, 00.00
5104,+24.7,1400,100, 50, 00, +8.9, 65.6, +6.7, -8.7,ECU. ,1207, 00.00
5249,+24.3,1529,100, 50, 00, +9.0, 67.8, +7.2, -7.5,ECU. ,1488, 00.00
5437,+24.5,1607,100, 60, 00, +10.0, 71.0, +7.8, -6.7,ECU. ,1543, 00.00
5640,+24.5,1592,100, 60, 00, +10.1, 72.9, +8.7, -7.2,ECU. ,1453, 00.00
5837,+24.7,1712,100, 60, 00, +11.3, 72.2, +9.6, -7.5,ECU. ,1592, 00.00
5973,+24.7,1694,100, 70, 00, +12.2, 72.8,+10.9, -7.4,ECU. ,1644, 00.00
6116,+24.5,1724,100, 70, 00, +13.4, 75.1,+12.3, -7.1,ECU. ,1592, 00.00
6289,+24.5,1785,100, 70, 00, +13.4, 78.3,+13.7, -7.0,ECU. ,1677, 00.00
6459,+24.7,1792,100, 70, 00, +14.7, 78.2,+14.6, -7.3,ECU. ,1760, 00.00
6640,+24.7,1851,100, 80, 00, +15.7, 78.7,+15.7, -7.4,ECU. ,1677, 00.00
6775,+24.7,1831,100, 80, 00, +16.3, 81.8,+16.7, -7.2,ECU. ,1677, 00.00
6930,+24.9,1879,100, 80, 00, +17.5, 82.5,+17.5, -7.2,ECU. ,1700, 00.00
7092,+24.7,1865,100, 80, 00, +17.6, 82.5,+18.3, -7.1,ECU. ,1748, 00.00
7199,+25.1,1872,100, 80, 00, +18.6, 82.4,+19.0, -6.9,ECU. ,1760, 00.00
7374,+25.1,1908,100, 80, 00, +18.7, 82.7,+19.6, -7.2,ECU. ,1824, 00.00
7507,+25.1,1915,100, 80, 00, +19.8, 83.8,+19.9, -7.8,ECU. ,1773, 00.00
7524,+24.9,1818,100, 80, 00, +19.7, 83.9,+20.0, -7.7,ECU. ,1773, 00.00

I am still testing the upper limits of how much timing I can run up top on 93, but so far no knock up there. I did have to dial back timing between 4800-5800 to keep knock away. I'm very happy with the gains. Hard to say how much is the tuning and how much is the WR, but the car is definitely faster and the air flow numbers reflect both the better turbo and my ability to control timing and thereby run more boost without knock.

Love my UTEC!

 

You wont need to raise it above 2000hz, I have a WR log in a thread in here, granted that run was only at 20 psi per the boost gauge, but 22psi on the HKS EBC. Plus your going to love the WR, I do. Boost comes on very hard, although 0-5psi is a little slow but when it passes 5psi get ready for a ride.

 

Did you see my WR log in the post right above yours?