the lag you are talking about is a fraction of a second... i've tried it also, you can hear the IMRC working, look at the cable and it pulls it all the way instantly... now as for getting to 5K, let's say it took me a city block at a very low throttle angle, and well that's why i stopped at 5K cause it wasn't climbing anymore and the sound was hurting my ears... as for me thinking the lower limit is 3100 i have many reasons why... one way i was able to determine was getting the secondaries to open at a given RPM by quickly mashing the peddal... so i would cruise at 2500 mash pedal nothing until they climbed past 3K... then i did this again at 2600 mash pedal nothing again... increment RPM by 100 each time and when i got to 3K mashed the pedal they opened, 3100 mashed the pedal and they opened again, unfortunately my eye is not fast enough to determine the exact RPM... i have an autotap cable and would love to get actual numbers but i don't have a laptop... as for my testing on it being completely TPS... well i would slowly increment the throttle angle and by feel alone try to figure out when they would open... regardless of the RPM they always seemed to open at the same FOOT angle... notice how i said foot, being this is not scientific but my hypothesis do to more scientific testing upon.

I have logged countless miles, hwy, city even sitting in my garage and reving the engine from the throttle body lever and watching the cable... now i just need to get a scan tool on this


2000 Cougar V6 MTX
Black
Visteon GFX Kit with Razzi rear skirts, Ground Controls, YoDude Exhaust, Ractive Filter, Custom Interior, Custom Loud Stereo, and more...
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