1500 Beetle autostick Gear Ratios - Turbine speeds etc. Now with GRAPH ... etc

[68autobug]

Here is a graph with engine speeds and turbine [inside the torque converter]
speeds..

the Differential ratio is 4.375 to 1... 

this was used on 1300 & 1500 engined cars.

4.125 to 1  Differential ratio was also used.. in later 1600 beetles.

A 3 element torque converter is used.

the torque ratio is 2.1 to 1.

stall speed 2000 - 2250 rpm

oil pressure @ 4000rpm is 38 - 52 PSI


Lee

http://community.webshots.com/user/vw68autobug

[68autobug]

OK here is the graph which wasn't didnt appear on the last post..

Gears:
LOW ; 2.06 Ratio : Number of teeth  36 : 17

DRIVE 1 : 1.26 Ratio : Number of teeth  29 : 23

DRIVE 2 : 0.89 Ratio : Number of teeth  24 : 27

Reverse  : 3.07 Ratio : number of teeth  42: 14

Differential 4.375 to 1 : number of teeth  35 : 8

MAXIMUM TORQUE MULTIPLICATION        2.1 TO 1

[/size]

[jayson.devries]

Here are the gear ratios for the later models.

Driving range 1          1.26:1
Driving range 2          0.88:1
Driving range L          2.25:1
Reverse range R        3:07:1
Differential ratio        4.125:1

Found in a VWoA publication "Volkswagen 1973 Beetle, Super Beetle, Karmann Ghia - Owner's Maintenance and Repair Guide" (42-01-2995-1).


https://picasaweb.google.com/jayson.devries/1973VolkswagenSuperBeetle#5586659191768323122


https://picasaweb.google.com/jayson.devries/1973VolkswagenSuperBeetle#5586659192485570498

[jayson.devries]

From the same book...

For late model autosticks (with gears ratios as mentioned above and 1584cc), the "Maximum and cruising speed":

Beetle and Super Beetle                   78 mph (125.5 km/h)
Karmann Ghia                                 88 mph (141.6 km/h)


https://picasaweb.google.com/jayson.devries/1973VolkswagenSuperBeetle#5586662888823965058

[jayson.devries]

And now for some slightly different numbers from a book published in 1974 by Autopress Ltd. in England.

"Autobook 760 - Beetle Owners Workshop Manual"

Gear ratios:
Automatic transmission:
1st           2.06:1
2nd          1:26:1
3rd           0.89:1
Reverse     3.07:1

Differential ratio:
'1200', '1300' and cars with automatic transmission       4.375:1
'1500', '1600'                                                         4.125:1


https://picasaweb.google.com/jayson.devries/1973VolkswagenSuperBeetle#5586669822736600530

https://picasaweb.google.com/jayson.devries/1973VolkswagenSuperBeetle#5586669815387717858

[jayson.devries]

And yet another source.  From the "Bentley Official Service Manual" published in 1979 in USA (ISBN 0-8376-0096-0).

1st gear                                                     35/17      2.06:1
2nd gear                                                    29/23      1.26:1
3rd gear                                                     24/27      0.89:1
Reverse                                                      43/14      3.07:1
Final drive (differential)                                  8/33       4.125:1

Converter maximum torque multiplication:   2.1


https://picasaweb.google.com/jayson.devries/1973VolkswagenSuperBeetle#5586674799337347842

[68autobug]

               
   Hi Jayson

I have that other book too...

it seems that no autosticks ever had the 3.88 final drive the late supers had...??

I was hoping to get a 4.125 gearbox...
but the 2 spares were 68 models and all 4.375...

and I was doing 125KMH a couple of days ago in My beetle...

I don't usually drive that fast plus the limit was 100KMH... lol
but a fellow overtook Me [dangerously] and then sped off...
so, I pressed the accelerator to the floor...
and away I went.... lol..

and My Tachometer isn't  working at present...
I replaced the VDO 8000 rpm tacho I have had in use since 2005
but I found I had a new VDO [made in Australia] tacho in My cupboard so I have installed that
but all the hook up connections are different...
there is a High  and a LOW   plus + and --  plus 5 tumbers... on/off..??

so, I'm still investigating that one .. lol

but it would have interesting to see what revs I was doing at 125 KMH..

My Son said probably 5,500.... but I don't think My engine will go that high?

cheers

LEE

PS: 2.25 to 1 in LOW    Odd that one..