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#1921
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Is this intended for me? My post was to the OP.
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6.98 @ 199mph 4.53 @ 164mph |
#1922
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Quote:
Hit the rev limiter, was set to 8500rpm.
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2023 Best ET Slip 60’ 1.224 330 3.186 1/8 4.784 MPH 152.07 1000 6.175 ET 7.347 MPH 189.92 Weight 3650 YouTube Channel --> https://www.youtube.com/channel/UC21...rWwgFdfTRqShGQ FaceBook Group --> https://www.facebook.com/groups/220092308823847/ |
#1923
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I was going to say rev limiter or valve loft/bounce. But I didn't want to be wrong. Car loves to rev, that's for sure. Full of potential.
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#1924
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I am seeing about 700 drop on the shift ??? not terrible
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#1925
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I cant really make out in the pic what the numbers are but it looks like a lot more than that IMO. Maybe Ed can tell us what it is.
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6.98 @ 199mph 4.53 @ 164mph |
#1926
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1-2 shift shows ~700rpm
2-3 shift is ~1200rpm. AFR was fat after the shift until closed loop re-enabled. I leaned out the upper RPM range by ~5%. CL Correction prior to doing that was a little over 10% in the 7500+ range.
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2023 Best ET Slip 60’ 1.224 330 3.186 1/8 4.784 MPH 152.07 1000 6.175 ET 7.347 MPH 189.92 Weight 3650 YouTube Channel --> https://www.youtube.com/channel/UC21...rWwgFdfTRqShGQ FaceBook Group --> https://www.facebook.com/groups/220092308823847/ |
#1927
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once you are close -- get rid of the closed loop altogether -- and tune it a little at a time via the fuel map --
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The Following User Says Thank You to cgeise For This Useful Post: | ||
#1928
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Always trying to learn a little more about aftermarket fuel injection. What is the advantage of NOT using the wide band O2 as the tune gets closer to optimal? Does it give you the ability to go a little richer than the closed loop control will allow for more safety and power? Thanks for the education.
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#1929
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Quote:
Tom V.
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"Engineers do stuff for reasons" Tom Vaught Despite small distractions, there are those who will go Forward, Learning, Sharing Knowledge, Doing what they can to help others move forward. |
The Following User Says Thank You to Tom Vaught For This Useful Post: | ||
#1930
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Only advantage of a wide band (depends on application here...he's boosted so alot more variable) on just a NA vehicle is it certainly allows you run an out of tune vehicle SAFELY, WHILE you tune up your maps.. Most of the self learning stuff is just a loop program to tighten the margin of error/adjustment....over and over again until XXXYYYY stoichiometry is dialed in.. My dinosaur commander MPI system had no self programming, NO self learning and was very challenging to tweek.
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#1931
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For the self learning and corrections to work right, the Target A/F map that it reads off of needs to be right .
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My Half AN Injun..... |
#1932
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Only managed to get in one pass today, unexpected rain came in and the event was canceled.
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2023 Best ET Slip 60’ 1.224 330 3.186 1/8 4.784 MPH 152.07 1000 6.175 ET 7.347 MPH 189.92 Weight 3650 YouTube Channel --> https://www.youtube.com/channel/UC21...rWwgFdfTRqShGQ FaceBook Group --> https://www.facebook.com/groups/220092308823847/ |
#1933
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Good pass...Why do they keep saying "partial" pass on the FB posts?
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#1934
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Quote:
I was off the throttle before the end of the run.
__________________
2023 Best ET Slip 60’ 1.224 330 3.186 1/8 4.784 MPH 152.07 1000 6.175 ET 7.347 MPH 189.92 Weight 3650 YouTube Channel --> https://www.youtube.com/channel/UC21...rWwgFdfTRqShGQ FaceBook Group --> https://www.facebook.com/groups/220092308823847/ |
#1935
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Quote:
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The Following User Says Thank You to cgeise For This Useful Post: | ||
#1936
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Quote:
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#1937
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for what its worth -- when we tuned on a dyno -- it still needed tweaking when on the track -- I thin the track loads it down diff than a dyno -- at least that's what I was told.
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#1938
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That is an accurate statement, as we would get a good solid calibration on vehicles on the chassis and Engine dynos, AND STILL NEED TO FINE TUNE on "On the Road" and in given "Track" (parts of the country), conditions, etc. The dyno gets you about 85% of what you need. The Track gets you another 10%. You never get the last 5%.
Tom V.
__________________
"Engineers do stuff for reasons" Tom Vaught Despite small distractions, there are those who will go Forward, Learning, Sharing Knowledge, Doing what they can to help others move forward. |
#1939
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That is an accurate statement, as we would get a good solid calibration on vehicles on the chassis and Engine dynos, AND STILL NEED TO FINE TUNE on "On the Road" and in given "Track" (parts of the country), conditions, etc. The dyno gets you about 85% of what you need. The Track gets you another 10%. You never get the last 5%.
Tom V.
__________________
"Engineers do stuff for reasons" Tom Vaught Despite small distractions, there are those who will go Forward, Learning, Sharing Knowledge, Doing what they can to help others move forward. |
#1940
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