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[STB]

The only thing I can comment on right now after my first run with the stock TB (since I did not have time to download the log last night after the run) is that the advance is too high and the fifth gear roll on is obviously down on HP since the stock TB is so small: probably 15 hp down or more since my cam turns on at 2750 rpms or so. I suspect the small cylinder fill by the smaller TB reduced the advance needed: less to ignite and quicker flame travel, I suspect. Other than that, it hesitated twice coming off idle after a red light stop and had a slight sneeze twice when it hesitated. But, it is tuning and seemed to correct that after I ran it 35 miles or so. I suspect the hesitation and sneezing will be cured after I BLM it and go to open loop. It seemed to me, in the past, that the 2.5% BLM row messed up the off idle performance during closed loop and riding even when you did not apply the BLM (which is done at zero in that row). I suspect it is the same thing now with my single O2 DTT.

What is surprising is that apparently the fuel is not far off what the engine needed since the BLM seemed to be fairly stable which is a bit of a surprise. I thought it would be way rich considering the reduced air volume, even at low rpms. After I check the BLM tonight, I will know for sure.

I will see if the IAC is stable and repeatable tonight and tomorrow.

After I get it BLMed, I will be able to check low end responsiveness to see if the smaller TB had an performance boost due to higher velocity of the intake charge, just for grins. But, I have to reduce that advance first....... .

STB