[key west 67 impala]

I Have A Aluminume 67 Power Glide And A 283 Small Block Trying To Figure Out What Mph And Rpm Is Best For Shifting.its Shifting At 25mph Im Pretty Sure Originaly Shifted At 30 Mph.im Trying To Figure Out Whats Best For Transmission.

[Joe G]

Just a novice observation here, but...

Wouldn't the ground speed at which the transmission shifts depend on how much load the engine is under, the rear end gearing, and the tire size? Or maybe a Power Glide wasn't that sophisticated and you just set it to shift at a certain input RPM.

Just thinking out loud...er....typing...or...whatever. Thyping? Tynking? IDK...

Joe G.

[key west 67 impala]

Sorry Im Not A True Gear Head Such As Yourself.im Still Learnig All The Ends And Out.im Just A Car Lover Who Has A Classic Car That Im Trying To Restore My Self So Some One Like You Does Not Rip Me Off When Im Trying To Get A Simple Thing Done On My Car Like Ajusting A Shift Cable.i Come Here For Friendly Advice From People Who Know More About This Than Me.if My Question Is Below Some Peoples Standards Than There Is No Need To Reply.if Anyone Has Any Help Full Advice It Would Be Greatly Apperciated,smart *** Commintes From Some One Who Is Much More Knowldeable On The Subject Can Kiss My *****.

[key west 67 impala]

Im Trying To Figure Were My Power Glide Trans Should Shift.my Car Is A 67 Impala All Originale And Stock It Has A 283 Small Block With Orginale Rear End (not Sure What Gearing But I Know It Hasnt Been Changed From Factory Gearing).15 Inch Center Lines For Rims With 285 Tires.i Recently Changed Intake And Carb To Edelbroc Perfomer Series.and Installed Lakor Throttle And Kickdown Cable.i Realize The Tighter The Kick Down Cable The Later It Shifts.can Some One Tell Me How To Figure Out Were I Should Be Shifting.for Best Life Of Trans

[Rob Keller]

If I am getting you correct.

The Down shift cable is for the "passing gear" on a power glide ... well there is not a lot of options for passing gear.

My 67 Bel Air 250 1 bbl Power Glide Would shift around 25 MPH normal & 60 ~65 MPH with the Go pedal matted.

My 66 Skylark 340 2 bbl Pwr Glide would shift about the same it would idle @ 20 MPH


Did this help?



R

[key west 67 impala]

very help full thank you

[matts37chev]

it would go by engine RPM not MPH, there are to many variables to pick out a standard MPH
there are also a lot of variables for RPM such as motor and tourqe converter
some more info on the car would be hepfull
and i dont believe joe g was trying to be a smart***
things just dont always come across a keyboard like they are intended

[matts37chev]

oh now i see you reposted this with more info never mind

[Joe G]

Maybe I should have worded my last comment differently or used some smileys or somethin'.

Originally Posted by Joe G

Just a novice observation here, but....

I meant that I was making a novice observation. I wasn't saying you were a novice. Nor was I trying to knock your question, knowledge, abilities, etc..

I wasn't being a smart***, I was just saying that there are many factors that determine when most automatic transmissions shift. But Powerglides, being an early form of auto tranny, might work in a simpler manner for all I know (hence the calling myself a novice).

You question is a good one. I hope to learn more about how Powerglides work because of this thread.

Didn't mean to piss you off, Man.
Sorry.

[key west 67 impala]

Thank You Guys Were All Helpful To Me.joe Im Sorry For Jumping Down Your Throat,the Reply Did Help Me.thanks To All Of You Who Replyed.i Wiil Be Starting A Juarnale You Can All Check Out In The Next Few Weeks I Will Be Tareing The Hole Car Down And There Will Be Lots Of Pics.

[matts37chev]

some people take things i say the wrong way in person (VERY DRY sense of humor) so i can be misunderstod on the computer VERY easily and often