"OD" vs. "3rd" or "D" for WOT 4L60E driving, which do you use?
03-01-2003, 02:41 PM
#21
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Re: "OD" vs. "3rd" or "D" for WOT 4L60E driving, which do you use? This part of the sig is pretty funny though.
CARTEK Dynoday Numbers
dyno was dynoing all cars 10hp under so corrected its
323HP and 330Tq
<img border="0" alt="[jester]" title="" src="graemlins/gr_jest.gif" />
CARTEK Dynoday Numbers
dyno was dynoing all cars 10hp under so corrected its
323HP and 330Tq
<img border="0" alt="[jester]" title="" src="graemlins/gr_jest.gif" />
03-03-2003, 01:26 AM
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Re: "OD" vs. "3rd" or "D" for WOT 4L60E driving, which do you use? OK are you ready for this.
The PCM only allows a 2 gear downshift.
So if you are in 4th at 40mph and slam it the PCM says OK down to 2nd then after being in second for a short while it says, hum, still WOT, less than xxxx rpm, downshift to 1st.
When in 3rd at 40mph and slam it PCM says OK down to 1st.
I can not remember the source but I remember reading this somewhere.
The PCM only allows a 2 gear downshift.
So if you are in 4th at 40mph and slam it the PCM says OK down to 2nd then after being in second for a short while it says, hum, still WOT, less than xxxx rpm, downshift to 1st.
When in 3rd at 40mph and slam it PCM says OK down to 1st.
I can not remember the source but I remember reading this somewhere.
03-03-2003, 06:52 AM
#23
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Re: "OD" vs. "3rd" or "D" for WOT 4L60E driving, which do you use? </font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by AL SS590 M6:
<strong> OK are you ready for this.
The PCM only allows a 2 gear downshift.
So if you are in 4th at 40mph and slam it the PCM says OK down to 2nd then after being in second for a short while it says, hum, still WOT, less than xxxx rpm, downshift to 1st.
When in 3rd at 40mph and slam it PCM says OK down to 1st.
I can not remember the source but I remember reading this somewhere. </strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">VERY interseting! Thanks for this info, this would certainly explain my issue. Never knew this was the case. Very good information. <img border="0" alt="[cheers]" title="" src="graemlins/gr_cheers.gif" />
<strong> OK are you ready for this.
The PCM only allows a 2 gear downshift.
So if you are in 4th at 40mph and slam it the PCM says OK down to 2nd then after being in second for a short while it says, hum, still WOT, less than xxxx rpm, downshift to 1st.
When in 3rd at 40mph and slam it PCM says OK down to 1st.
I can not remember the source but I remember reading this somewhere. </strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">VERY interseting! Thanks for this info, this would certainly explain my issue. Never knew this was the case. Very good information. <img border="0" alt="[cheers]" title="" src="graemlins/gr_cheers.gif" />
03-03-2003, 08:00 AM
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Re: "OD" vs. "3rd" or "D" for WOT 4L60E driving, which do you use? As a stock car, I ran the fastest time in D instead of OD at the track and I ran many times. As a head and cam car, I leave it in OD because I would hit the rev limiter. So you have to experiment at the track and see which <img border="0" alt="[burn out]" title="" src="graemlins/gr_burnout.gif" /> works best for your car. Cheeers.
