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How do I improve initial throttle response

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Old 06-01-2008, 09:36 AM
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Default How do I improve initial throttle response

Have played around w/ VE & spark, but am not getting the response from just opening to say 3% TPS change. Usually, it takes more opening before the RPM's come up. What is the proper adjustment to get the response earlier? Thanks (EFI Live tuning software is used)
Old 06-01-2008, 10:46 AM
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Originally Posted by LS1-450
Have played around w/ VE & spark, but am not getting the response from just opening to say 3% TPS change. Usually, it takes more opening before the RPM's come up. What is the proper adjustment to get the response earlier? Thanks (EFI Live tuning software is used)
3% change on the scanner, and it doesnt do anything? Or does it just "feel" like you're giving it about 3%?
I would make sure your scanner is seeing the slight change in tps. And if so, thats a bit strange that it doesnt do anything.
Got a log or something? How bout a tune? Could be something to see there. I got an idea but will reserve comment for the time being.
Old 06-01-2008, 11:03 AM
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It feels like 3%. This morning, I made a throttle follower & paramater change. Plan to make a new log today. Here is the tune before today's follower change. Have also added the dump file from the previous log. (dump file was before the posted tune; spark & VE mod's. since then).
Old 06-01-2008, 01:44 PM
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edcmat-l1,

Here is today's log file. The throttle follower & parameter changes seemed to have helped. Chages were:
-TPS % change is now 0.29% (parameter)
-Airflow g/s change is now 0.00,0.05 0.50,0.11 1.00,0.11 1.50,0.22 2.00,0.22 3.00,0.54
all others were left as they were (throttle follower). Should I continue w/ an airflow g/s increase or are there better solutions.

I am a complete newb @ tuning & have just begun changing the program. The knock retard @ WOT needs some more work, as you will see. any other suggestions are appreciated. Thank-you
Attached Files
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BB-Log_0001.efi (406.8 KB, 63 views)



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