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Re: Part throttle downshift not available with 440 and 426
[Re: lewtot184]
#1476132
07/29/13 10:15 PM
07/29/13 10:15 PM
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Joined: Sep 2007
Posts: 14,889 up yours
Supercuda
About to go away
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About to go away
Joined: Sep 2007
Posts: 14,889
up yours
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part throttle downshift was done to compensate for lack of torque.
You think the 440 or Hemi had that problem?
They say there are no such thing as a stupid question. They say there is always the exception that proves the rule. Don't be the exception.
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Re: Part throttle downshift not available with 440 and 426
[Re: lewtot184]
#1476134
07/30/13 10:33 AM
07/30/13 10:33 AM
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Joined: Jan 2003
Posts: 75,092 A Banana Republic near you.
JohnRR
I Win
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I Win
Joined: Jan 2003
Posts: 75,092
A Banana Republic near you.
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Quote:
i don't think chrysler went to part throttle downshift until the early seventies. just put an early seventies valve body in it and your good to go.
This , I'm pretty sure PTK didn't show up till 1971 ...
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Re: Part throttle downshift not available with 440 and 426
[Re: Supercuda]
#1476136
07/30/13 11:28 AM
07/30/13 11:28 AM
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Joined: Jan 2003
Posts: 3,575 The Netherlands
BigBlockMopar
master
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master
Joined: Jan 2003
Posts: 3,575
The Netherlands
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Quote:
part throttle downshift was done to compensate for lack of torque.
You think the 440 or Hemi had that problem?
Personally I find it very annoying when an engine keeps working against a transmission hanging in 3rd gear when doing 10-15 mph orso.
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Re: Part throttle downshift not available with 440 and 426
[Re: BigBlockMopar]
#1476137
07/30/13 11:39 AM
07/30/13 11:39 AM
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Anonymous
Unregistered
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Anonymous
Unregistered
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Even more annoying was driving a Hemi Charger back in the day and getting beaten by a small block from a 35 mph roll because your tranny won't go into low gear above 30 mph no matter what you do. Manual/automatic valve body fixed that.
Not sure what years had that problem, but I know the 67's and 68's did.
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Re: Part throttle downshift not available with 440 and 426
[Re: dogdays]
#1476142
07/30/13 07:07 PM
07/30/13 07:07 PM
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Joined: Jun 2008
Posts: 3,916 usa
lewtot184
master
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master
Joined: Jun 2008
Posts: 3,916
usa
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Quote:
And the valve bodies interchange, right? So a PTK body will fit in any Torqueflite, right? Making it easy to retrofit?
R.
i've used PTK valve bodies in a '69 tranny with no issues.
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Re: Part throttle downshift not available with 440 and 426
[Re: dogdays]
#1476143
07/30/13 07:30 PM
07/30/13 07:30 PM
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Joined: Jan 2003
Posts: 25,967 Rio Linda, CA
John_Kunkel
Too Many Posts
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Too Many Posts
Joined: Jan 2003
Posts: 25,967
Rio Linda, CA
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Quote:
And the valve bodies interchange, right? So a PTK body will fit in any Torqueflite, right? Making it easy to retrofit?
Nope, the VB has to be '67 or later. The earlier VB's lack the throttle pressure sense port.
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