Re: Engine RPM at highway speed

[Schuyler <schuyler62@xxxxxxxxxxxxx>]

won't the 727's torque converter always be slipping a little? unless  
it's
a lock-up converter.
Schuyler
62 Dodge Dart 440 wagon w/ Poly 318
 <http://www.1962to1965mopar.ornocar.org/ml-wrobel62.html>



On Oct 25, 2006, at 4:49 PM, Brian Schlump wrote:

> I'm puzzled by the difference in engine RPM with my 2 cars, that each
> have a 3.23 Sure Grip.  I usually drive at 62 mph on the 2 lane  
> roads in
> our area.  My '64 Belvedere has a 426 Max Wedge with a 4 speed
> transmission and P245/60/15  rear tires.  It tachs at 2,200 rpm at 62
> mph.  I recently had a '68 Charger restored and it has a 440 engine  
> with
> a 727 big block transmission and F70/15 tires.  It tachs at 3,300  
> rpm at
> 62 mph.  I've checked the rpm on both cars with a second tach and I've
> had my wife follow me in her new car to verify that I'm doing 62 in  
> each
> one.  The 727 was rebuilt as part of the restoration.  It shifts  
> through
> all gears and downshifts into 2nd when I hit passing gear on the
> highway.  The fluid hasn't discolored in 600 miles, and doesn't smell
> burnt.  Today the restoration shop installed a new converter, but that
> had no impact on the rpm at highway speed.   Does anyone else have  
> a 727
> with a 3.23 rear end combo?  If so, what engine rpm do you run at
> highway speeds?  Any other ideas?
> Brian
>
> '64 Belvedere
> Woodstock, IL.
>
> "The difference between ordinary and extraordinary is that little
> extra."
>
>
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----
Please address private mail -- mail of interest to only one person -- directly to that person.  I.e., send parts/car transactions and negotiations as well as other personal messages only to the intended recipient, not to the Clubhouse public address. This practice will protect your privacy, reduce the total volume of mail and fine tune the content signal to Mopar topic.  Thanks!

'62 to '65 Mopar Clubhouse Discussion Guidelines:
http://www.1962to1965mopar.ornocar.org/mletiq.html. 

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