RE: Torque Convertor

[Jeff <chargr1969@xxxxxxxxx>]

kevin, as gary said, 
Bottom line; stock engine - stock convertor; and a HP engine must match 
the convertor stall to your cam/engine's requirements.    
you do NOT need a stall convertor unless you have a radical cam, meaning over stock. if you run a stock convert with a radical cam, the car will not idle. the converter has to slip with a radical cam. i learned this the hard way years ago. if your motor is stock, leave the convert stock.         jeff
















--- On Sun, 4/18/10, Kevin Merkley <krmerkley@xxxxxxxxx> wrote:

> From: Kevin Merkley <krmerkley@xxxxxxxxx>
> Subject: RE: Torque Convertor
> To: 1962to1965mopars@xxxxxxxxxx
> Date: Sunday, April 18, 2010, 10:50 PM
> 
> Hi,
> 
> We expect to use it in the "putt putt" style to cruise
> nights and down 
> the highway.  I don't think that my wife will launch
> the car often.
> 
> I agree with the stock convertor for stock use and that is
> what the car 
> will be.  i'm pretty sure that I can get rid of the
> convertor and trade 
> for a stock one easily enough since the input shaft has
> been changed to 
> a newer style.
> 
> The cam is a stock grind, the engine is a 383 bored .030
> over with a 
> Edelbrock Performer manifold and a 72 340 Thermoquad.
> 
> The rear is 2.76.  I'll likely go 15 inch wheels but
> put on a tire that 
> keeps the stock overall diameter so the speedometer won't
> be too far out 
> or touch with reality.
> 
> Does anyone know about the lock up convertors and whether
> they will work 
> in a car without a computer controlling the tranny.
> 
> K.
> 
> 
> Gary Pavlovich wrote:
> > 
> > Kevin,
> > 
> > Your choice of convertor stall is dependant on the
> amount of camshaft 
> > you 
> > are running.  Everything must work together as a
> "package."  If your 383 
> > is 
> > a stock four barrel engine with stock or very mild cam
> then run a stock 
> > convertor or just enough stall to match the High
> Performance Camshaft 
> > needs.
> > 
> > There are misconceptions about "High Stall" convertors
> and just because 
> > it 
> > is a 3500stall does not mean it will slip adversely
> till it reaches 
> > 3500rpm. 
> > The "advertised" stall is not the actual stall. Actual
> stall depends on 
> > the 
> > torque output of your engine.  A quality
> convertor will slip a 
> > determined 
> > amount under light throttle and may not be noticeable
> to the "feel" 
> > while 
> > driving.  However, under full-throttle it will
> "flash" to its full stall 
> > 
> > potential and lauch much like a manual trans.
> > My 340 Dart with low gear set, 3.91's, and short tires
> runs a 3500 stall 
> > 10" 
> > Continental convertor and you cannot tell/feel it has
> a "High Stall" 
> > convertor as it will idle down the street w/o throttle
> pressure and will 
> > 
> > instantly respond to light accl. pedal pressure with
> the commensurate 
> > torque 
> > response one expects in a "stock" engine.  If I
> am cruising or go from a 
> > 
> > standing start by "flooring" the accl. pedal, it will
> flash and launch 
> > like 
> > a rocket.
> > 
> > I will be running a "quality" 9.5" 3800 stall Dynamic
> convertor in my 
> > Poly 
> > Stroker Plymouth given the excellent road manners and
> longevity of the 
> > Continental unit which I have driven for approx.
> 15yrs. now.
> > 
> > Bottom line; stock engine - stock convertor; and a HP
> engine must match 
> > the 
> > convertor stall to your cam/engine's requirements
> (intake design can 
> > play a 
> > part but it is not germane to this discussion) and
> final gearing 
> > determined 
> > by rear end ratio, tire height, and auto trans gearing
> in low (ie. low 
> > gear 
> > set or not).
> > 
> > Gary Pavlovich
> > ----- Original Message ----- 
> > From: "Kevin Merkley" <krmerkley@xxxxxxxxx>
> > To: <1962to1965mopars@xxxxxxxxxx>
> > Sent: Sunday, April 18, 2010 3:30 PM
> > Subject: Torque Convertor
> > 
> > 
> > >
> > > Hi folks,
> > >
> > > The transmission that is destined for my wife's
> 64 Polara 500 ragtop
> > > (coupled to a 383) has a 3500 stall convertor in
> it.
> > >
> > > The previous owner of the tranny said that it
> will drive just fine and,
> > > of course really launch if "Ol what's her name"
> firmly presses the
> > > accelerator pedal to the floor.
> > >
> > > What symptoms am I going to encounter running a
> convertor with that high
> > > of a stall?  Will I still get reasonable gas
> mileage or will the
> > > convertor be slipping?
> > >
> > > Apparently the input shaft has been changed so it
> is possible to shove
> > > in another new convertor and sell this one.
> > >
> > > On another twist to the same sort of topic, will
> a lock up convertor
> > > work on a noncomputer car?  Like perhaps a
> convertor from a 78 or 79?
> > >
> > > Thanks for your advise.
> > >
> > > Regards,
> > >
> > > K.
> > >
> > >
> > > Kevin R. Merkley
> > > Thunder Bay, Ontario
> > > 64 Dodge 440 2dr HT (Cdn)
> > > 64 Dodge Polara 500 Convertible (Cdn)
> > >
> > >
> > > ----
> > > 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!
> > >
> > > 1962 to 1965 Mopar Clubhouse Discussion
> Guidelines:
> > > http://www.1962to1965mopar.ornocar.org/mletiq.html and
> 
> > > http://www.1962to1965mopar.ornocar.com/general_disclaimer.html.
> > > 
> > 
> 
> 
> 
> Kevin R. Merkley
> Thunder Bay, Ontario
> 64 Dodge 440 2dr HT (Cdn)
> 64 Dodge Polara 500 Convertible (Cdn)
> 
> 
> ----
> 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!
> 
> 1962 to 1965 Mopar Clubhouse Discussion Guidelines:
> http://www.1962to1965mopar.ornocar.org/mletiq.html and
> http://www.1962to1965mopar.ornocar.com/general_disclaimer.html.
> 
> 
>