Porsche 996 LS3 Conversion
Thread Starter
Registered User
Joined: Nov 2016
Posts: 3
Likes: 0
Porsche 996 LS3 Conversion Hi,
I. Going to start the above conversion over the winter so I'll likely have a few question, I'll have a good search through the forum to see what information I can find.
As it stands I have a 1999 C4 Carrera and it requires an engine rebuild, I've bought an LS3 engine without Dod, it comes complete with ECU already programmed for standalone, wiring harness, GM pedal assembly and C6 Corvette sump.
I'll need to buy the conversion kit possibly from renegade to allow me to mount the motor into the car unless anyone knows of an alternative.
My first real question is, does anyone know of a wiring diagram so I can have a look and see what wires I need to connect the GM ecu into, I assume I need to try and splice the Porsche DME (7.2 variant) to the GM ecu, I really want this as an everyday car so don't want my dash board full of lights.
Thanks
I. Going to start the above conversion over the winter so I'll likely have a few question, I'll have a good search through the forum to see what information I can find.
As it stands I have a 1999 C4 Carrera and it requires an engine rebuild, I've bought an LS3 engine without Dod, it comes complete with ECU already programmed for standalone, wiring harness, GM pedal assembly and C6 Corvette sump.
I'll need to buy the conversion kit possibly from renegade to allow me to mount the motor into the car unless anyone knows of an alternative.
My first real question is, does anyone know of a wiring diagram so I can have a look and see what wires I need to connect the GM ecu into, I assume I need to try and splice the Porsche DME (7.2 variant) to the GM ecu, I really want this as an everyday car so don't want my dash board full of lights.
Thanks
Staging Lane
Joined: Oct 2014
Posts: 51
Likes: 1
Hi,
I. Going to start the above conversion over the winter so I'll likely have a few question, I'll have a good search through the forum to see what information I can find.
As it stands I have a 1999 C4 Carrera and it requires an engine rebuild, I've bought an LS3 engine without Dod, it comes complete with ECU already programmed for standalone, wiring harness, GM pedal assembly and C6 Corvette sump.
I'll need to buy the conversion kit possibly from renegade to allow me to mount the motor into the car unless anyone knows of an alternative.
My first real question is, does anyone know of a wiring diagram so I can have a look and see what wires I need to connect the GM ecu into, I assume I need to try and splice the Porsche DME (7.2 variant) to the GM ecu, I really want this as an everyday car so don't want my dash board full of lights.
Thanks
I. Going to start the above conversion over the winter so I'll likely have a few question, I'll have a good search through the forum to see what information I can find.
As it stands I have a 1999 C4 Carrera and it requires an engine rebuild, I've bought an LS3 engine without Dod, it comes complete with ECU already programmed for standalone, wiring harness, GM pedal assembly and C6 Corvette sump.
I'll need to buy the conversion kit possibly from renegade to allow me to mount the motor into the car unless anyone knows of an alternative.
My first real question is, does anyone know of a wiring diagram so I can have a look and see what wires I need to connect the GM ecu into, I assume I need to try and splice the Porsche DME (7.2 variant) to the GM ecu, I really want this as an everyday car so don't want my dash board full of lights.
Thanks
Thread Starter
Registered User
Joined: Nov 2016
Posts: 3
Likes: 0
That doesn't seem all that drastic, I was expecting it to be quite in depth.
Is there anything at all that jumps out as being problematic ?
How about the onboard computer, does this still give MPG read out etc.
What's the best solution water pump wise, I've read a few different ways of doing this, I'm basically wanting the easiest set up, I'm not fussed about A/C of power steering just now
Is there anything at all that jumps out as being problematic ?
How about the onboard computer, does this still give MPG read out etc.
What's the best solution water pump wise, I've read a few different ways of doing this, I'm basically wanting the easiest set up, I'm not fussed about A/C of power steering just now
Launching!
Joined: Feb 2015
Posts: 245
Likes: 21
Staging Lane
Joined: Oct 2014
Posts: 51
Likes: 1
That doesn't seem all that drastic, I was expecting it to be quite in depth.
Is there anything at all that jumps out as being problematic ?
How about the onboard computer, does this still give MPG read out etc.
What's the best solution water pump wise, I've read a few different ways of doing this, I'm basically wanting the easiest set up, I'm not fussed about A/C of power steering just now
Is there anything at all that jumps out as being problematic ?
How about the onboard computer, does this still give MPG read out etc.
What's the best solution water pump wise, I've read a few different ways of doing this, I'm basically wanting the easiest set up, I'm not fussed about A/C of power steering just now
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