Running a G64 without the PDAS
Thread Starter
Intermediate
Joined: Jul 2012
Posts: 25
Likes: 2
Running a G64 without the PDAS
Hi All. I am putting 964 running gear into a 1966 split screen camper (996 rear sub frame and a 993 vario 3.6 engine).
Progress so far if interested - https://www.ssvc.org.uk/phpbb/viewtopic.php?f=8&t=86279
My question is - can i run the gearbox without the diff lock actuators?
My understanding is it will run the system as a 31/69 split which i am ok with.
I read somewhere that track day boys swap the actuators for a nut and bolt set up and lock the diffs in different settings for differing tracks but now can't find the link.
any help much appreciated.
Progress so far if interested - https://www.ssvc.org.uk/phpbb/viewtopic.php?f=8&t=86279
My question is - can i run the gearbox without the diff lock actuators?
My understanding is it will run the system as a 31/69 split which i am ok with.
I read somewhere that track day boys swap the actuators for a nut and bolt set up and lock the diffs in different settings for differing tracks but now can't find the link.
any help much appreciated.
Burning Brakes
Joined: Apr 2012
Posts: 908
Likes: 99
From: London UK
Check out Giac's youtube channel "Number27" as he turned a C4 into a C2 but kept the M64 gearbox.
http://www.youtube.com/c/Number27/featured
http://www.youtube.com/c/Number27/featured
Burning Brakes
Joined: Oct 2009
Posts: 1,110
Likes: 241
From: Mainhatten / Frankfurt
Yes.
https://rennlist.com/forums/964-foru...rnation-2.html
Did a C2 conversion over the winter and started with the ABS conversion (rewired the C4 to a C2 ABS) and drove the car in the spec, where i had the (dead) PDAS still in the car and drove the car with the C2 ABS.... Then, the AWD was still passive in action with the fixed split 31/69 front/rear, bu no actions at the diff-locks... No problems and quite nice ride... I should have done this before the mechanical C2 conversion. This cures the understeer issue of C4 cars at narrow racetracks with tight corners...
https://rennlist.com/forums/964-foru...rnation-2.html
Did a C2 conversion over the winter and started with the ABS conversion (rewired the C4 to a C2 ABS) and drove the car in the spec, where i had the (dead) PDAS still in the car and drove the car with the C2 ABS.... Then, the AWD was still passive in action with the fixed split 31/69 front/rear, bu no actions at the diff-locks... No problems and quite nice ride... I should have done this before the mechanical C2 conversion. This cures the understeer issue of C4 cars at narrow racetracks with tight corners...
Three Wheelin'
Joined: Nov 2012
Posts: 1,945
Likes: 388
From: connecticut
Yes you can.
Mechanically this should be as simple as:
-Leave bellows inside transmission in place. These provide the transmission fluid seal.
https://www.delawareporscheparts.com...ws-92833205104
https://www.delawareporscheparts.com...A1MS0wMw%3D%3D
-Make a simple alum blank plate to retain bellows in lieu of the two (extremely pricey) slave cylinders.
Hydraulically I don't exactly know what if anything needs to be done besides capping the connection from the bomb accumulator to the presumably deleted solenoid. I frankly don't know if this would create any problematic flow or over-pressure conditions but my instinct is it would be okay. But don't build on my instinct
Thinking this through a bit further maybe you don't have any hydraulic problems if you plan to use non 964C4 brakes, or 964C2 brakes which would certainly be preferable. The pump and accumulator seem robust enough but I certainly wouldn't go adding them to a project car since there are vastly simpler non electronic solutions to obtaining excellent braking and clutch actuation when PDAS is out of the equation.
Mechanically this should be as simple as:
-Leave bellows inside transmission in place. These provide the transmission fluid seal.
https://www.delawareporscheparts.com...ws-92833205104
https://www.delawareporscheparts.com...A1MS0wMw%3D%3D
-Make a simple alum blank plate to retain bellows in lieu of the two (extremely pricey) slave cylinders.
Hydraulically I don't exactly know what if anything needs to be done besides capping the connection from the bomb accumulator to the presumably deleted solenoid. I frankly don't know if this would create any problematic flow or over-pressure conditions but my instinct is it would be okay. But don't build on my instinct
Thinking this through a bit further maybe you don't have any hydraulic problems if you plan to use non 964C4 brakes, or 964C2 brakes which would certainly be preferable. The pump and accumulator seem robust enough but I certainly wouldn't go adding them to a project car since there are vastly simpler non electronic solutions to obtaining excellent braking and clutch actuation when PDAS is out of the equation.
Thread Starter
Intermediate
Joined: Jul 2012
Posts: 25
Likes: 2
Yes you can.
Mechanically this should be as simple as:
-Leave bellows inside transmission in place. These provide the transmission fluid seal.
https://www.delawareporscheparts.com...ws-92833205104
https://www.delawareporscheparts.com...A1MS0wMw%3D%3D
-Make a simple alum blank plate to retain bellows in lieu of the two (extremely pricey) slave cylinders.
Hydraulically I don't exactly know what if anything needs to be done besides capping the connection from the bomb accumulator to the presumably deleted solenoid. I frankly don't know if this would create any problematic flow or over-pressure conditions but my instinct is it would be okay. But don't build on my instinct
Thinking this through a bit further maybe you don't have any hydraulic problems if you plan to use non 964C4 brakes, or 964C2 brakes which would certainly be preferable. The pump and accumulator seem robust enough but I certainly wouldn't go adding them to a project car since there are vastly simpler non electronic solutions to obtaining excellent braking and clutch actuation when PDAS is out of the equation.
Mechanically this should be as simple as:
-Leave bellows inside transmission in place. These provide the transmission fluid seal.
https://www.delawareporscheparts.com...ws-92833205104
https://www.delawareporscheparts.com...A1MS0wMw%3D%3D
-Make a simple alum blank plate to retain bellows in lieu of the two (extremely pricey) slave cylinders.
Hydraulically I don't exactly know what if anything needs to be done besides capping the connection from the bomb accumulator to the presumably deleted solenoid. I frankly don't know if this would create any problematic flow or over-pressure conditions but my instinct is it would be okay. But don't build on my instinct
Thinking this through a bit further maybe you don't have any hydraulic problems if you plan to use non 964C4 brakes, or 964C2 brakes which would certainly be preferable. The pump and accumulator seem robust enough but I certainly wouldn't go adding them to a project car since there are vastly simpler non electronic solutions to obtaining excellent braking and clutch actuation when PDAS is out of the equation.
Last edited by duke of boots; Jul 4, 2020 at 04:50 AM. Reason: can't spell!
