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08-05-2016, 09:28 PM
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#1 |
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VIP Member
Join Date: Jun 2009
Location: Boulder City, Nevada 89005
Posts: 2,736
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Re: Automatic trans shifting
On our Torqueflites...If the trans temp changed the shift points would
seem to change a bit.
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John Irving 741 Stock 741 Super Stock |
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08-06-2016, 09:58 AM
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#2 |
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VIP Member
Join Date: Nov 2008
Location: Glendora,Calif.
Posts: 1,137
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Re: Automatic trans shifting
That's an interesting consideration:temperature induced viscosity changes of the fluid and what it would do to a shift point.It's getting easier to manage water temperature for consistencies with the electric fans and water pumps and all, but how can we integrate a means of ATF temperature control for the same reason?
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08-06-2016, 10:42 AM
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#3 |
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Veteran Member
Join Date: May 2006
Location: Murfreesboro TN
Posts: 5,123
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Re: Automatic trans shifting
One huge problem with using the governor to control shifts is that not all race engines require the same RPM at every shift for both performance and consistency.
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Alan Roehrich 212A G/S |
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08-06-2016, 11:44 AM
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#4 |
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Junior Member
Join Date: Nov 2013
Posts: 91
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Re: Automatic trans shifting
I worked hard on a Ford C-4 to get the shift points where We wanted them and it worked well. After many passes the converter failed so to save time and get back racing I installed a manual valvebody trans. off the shelf and raced it. I was just as consistent manually shifting as the automatic shifting of the other unit. I now have the auto shift back so I can pay attention to other aspects but consistency was not a big difference. My combo has a pretty big window to shift, some could be more sensitive.
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