E85 Timing Maps
Sep 11, 2009, 10:25 AM
#46
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At 6,500rpm, I am at 29psi and it drops to 28psi by 7,500rpm. I'm not logging MAF Hz, unfortunately.
What are you curious about? Whether I am truly running out of fuel? I am just suspecting I am, since I keep adding fuel in the fuel map without seeing any significant A/F ratio changes at higher RPM.
What are you curious about? Whether I am truly running out of fuel? I am just suspecting I am, since I keep adding fuel in the fuel map without seeing any significant A/F ratio changes at higher RPM.
Sep 11, 2009, 10:40 AM
#47
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At 6,500rpm, I am at 29psi and it drops to 28psi by 7,500rpm. I'm not logging MAF Hz, unfortunately.
What are you curious about? Whether I am truly running out of fuel? I am just suspecting I am, since I keep adding fuel in the fuel map without seeing any significant A/F ratio changes at higher RPM.
What are you curious about? Whether I am truly running out of fuel? I am just suspecting I am, since I keep adding fuel in the fuel map without seeing any significant A/F ratio changes at higher RPM.
Thanks for the info.
- Bryan
Sep 11, 2009, 10:53 AM
#48
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I can log 2byte airflow and post the numbers later on. I have been limiting the number of items I'm logging via EvoScan since I'm using JOT's VDR (virtual dyno) to monitor the results.
Sep 13, 2009, 01:28 PM
#49
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Bryan,
Here is a 3rd gear pull (6-spd trans) with that timing map. I'm using the OmniPower 4-bar MAP sensor and AEM wideband. RPM, Load, and Airflow are the 2-byte values.
Here is a 3rd gear pull (6-spd trans) with that timing map. I'm using the OmniPower 4-bar MAP sensor and AEM wideband. RPM, Load, and Airflow are the 2-byte values.
Code:
RPM Boost Timing AF Load Airflow 2734 0.10 16 11.6 91.88 288.65 2770 0.34 16 13.8 93.75 308.41 2805 0.34 15 13.8 96.88 319.22 2840 0.81 15 15.5 100.31 336.32 2863 1.05 15 15.3 105.00 351.36 2902 1.53 14 15.3 108.75 366.49 2934 1.77 14 15.0 111.25 382.31 2992 2.01 13 15.0 115.31 407.18 3047 2.72 10 14.2 121.56 435.78 3113 3.68 9 14.2 127.81 468.51 3156 4.16 8 14.0 134.38 478.04 3238 5.11 8 13.7 141.88 539.27 3301 6.07 8 13.6 149.38 582.02 3379 6.78 9 13.5 159.38 637.85 3473 8.45 8 13.5 171.25 707.82 3543 10.36 8 13.5 186.25 783.50 3652 11.32 7 13.2 207.50 898.09 3746 14.42 6 13.0 229.69 1028.51 3855 17.28 4 12.6 254.38 1158.74 3984 20.86 5 12.3 281.88 1336.82 4039 23.73 3 12.3 302.50 1451.02 4230 26.11 2 11.9 317.19 1549.80 4266 28.74 3 11.9 315.63 1553.04 4438 29.70 3 11.3 312.19 1607.98 4500 30.17 4 11.6 312.81 1611.03 4684 30.89 4 11.6 310.94 1663.71 4809 31.13 5 11.9 310.31 1712.45 4949 31.37 5 12.1 310.31 1783.71 5094 31.37 7 12.1 311.88 1819.28 5238 31.60 8 12.2 310.31 1887.98 5375 31.37 8 12.2 312.19 1960.02 5555 31.13 9 12.2 309.38 1985.77 5723 30.65 9 12.2 306.88 2032.95 5891 30.65 10 12.2 303.75 2043.66 6063 30.41 11 12.2 301.25 2109.02 6203 30.65 11 12.2 297.81 2163.07 6438 30.17 12 12.2 291.88 2161.99 6480 29.93 14 12.2 290.94 2183.02 6586 29.22 14 12.0 289.06 2205.82 6684 28.26 14 12.0 285.31 2201.89 6801 28.26 15 12.0 282.19 2211.92 6906 28.26 15 12.0 279.69 2238.55 6008 28.02 16 12.2 279.06 2264.60 7102 27.79 16 12.2 278.75 2264.40 7203 27.31 17 12.2 275.63 2305.09 7508 27.31 17 12.2 271.56 2345.78 7613 26.83 18 12.2 267.81 2364.65 7441 27.07 18 12.0 271.88 2338.50 7613 27.55 19 12.2 268.44 2346.96
Sep 13, 2009, 07:17 PM
#50
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Thanks for the log. There is more in that Red for sure. 
BBK full can flow more Hz than that.
Get more fuel and boost.
Do you have factory induction tube or? Any porting other than turbo?
BBK full can flow more Hz than that. Get more fuel and boost.
Do you have factory induction tube or? Any porting other than turbo?
Sep 14, 2009, 07:16 AM
#51
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I have FP's 3" intake pipe for the 80mm compressor housing. Nothing is ported yet; I plan on getting the exhaust manifold, turbine housing, throttle body, and intake manifold all ported this winter.
Sep 15, 2009, 08:11 AM
#52
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tnt1106: Nope, haven't seen any tip in knock or any significant partial throttle knock in my logs. I have only had the cams for a week, so I am still fine tuning and monitoring things. I have seen some sporadic 1-2 counts of knock at WOT, but I also haven't altered my knock tables at all.
(I am still have the tip in knock issue at roll on 3-4k rpm)
Sep 15, 2009, 11:38 AM
#53
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Nov 10, 2009, 08:29 AM
#57
On a side note, I was running the Buschur MBC and that was easily able to do 30 with a taper to 24.
Nov 10, 2009, 09:16 AM
#58
I'm actually running the GM 3 port now and using Direct PSI control. My "street" map is 29 psi tapering to 24-25 and my "autox" map is a straight 22psi. I will never go back to a MBC after learning how to tune boost with the ECU. The consistency of ecu controlled is awesome.
On a side note, I was running the Buschur MBC and that was easily able to do 30 with a taper to 24.
On a side note, I was running the Buschur MBC and that was easily able to do 30 with a taper to 24.
Then again I don't have anything ported, and all stock IC pipes at the moment.
Nov 14, 2009, 10:35 AM
#59
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hi guys,
I have just got my tephra v7 bigmaps up and running and am going to self tune on tuesday.. on worry though.
I noticed the timing logged on evoscan is 2-4 deg more than what the map says between 90 and 200 load... above it seems pretty close (1 fdeg at most - rounding offf the interp?) and below 90 its spot on.
What do you guys think it is? is it evoscan logging wrong or is it a wrong setting in ecuflash on the bigmaps
Mike
I have just got my tephra v7 bigmaps up and running and am going to self tune on tuesday.. on worry though.
I noticed the timing logged on evoscan is 2-4 deg more than what the map says between 90 and 200 load... above it seems pretty close (1 fdeg at most - rounding offf the interp?) and below 90 its spot on.
What do you guys think it is? is it evoscan logging wrong or is it a wrong setting in ecuflash on the bigmaps
Mike