Evening all. Any help greatly appreciated from those that have played with aftermarket ECU settings.
We're coming close to trying to start the project car with the Metzger engine in and it's only now I realise just how complex getting the electronics right is.
I am learning as we go so forgive me if the terminology is out. There is an aftermarket ECU involved so we are starting from scratch.
We have set TDC on the light and established 274 degrees offset,
not 276 as expected. Fire order should be 162435 as per standard and cam triggers are 60-2 as I understand it?
Having checked injectors and coil packs by ear, all are firing the right cylinders (the loom is also new as it's not in a 996) I guess Cam sensors have to be on the right bank is a given and we can start without setting logic on the Variocam plus for start/ tick over.
Is there a factory spec sheet on this as I'd hate to get it wrong now. Injectors are standard (new) (450cc from memory) but we have a twin screw in-tank lift pump and a Bosch 044 in the mix so we are way over 3.8 Bar. Plugs are new.
If we have timed on a light and were at TDC on crank pulley then we can set 0 degrees on #1 and go from there on ignition I assume? Someone mentioned this has to be checked through the plug hole as it may be TDC on #4 but I'm not sure I understand how/why Porsche would do that???
Once done, are we missing anything? We are assuming a 5% throttle position for start up but I have no info on factory injector loads etc. to extrapolate from either. The car will get tuned eventually but for day 1, does anyone have info/ specs about just recreating what Porsche's settings would have been when the engine was in the 996tt??
:?:
Cheers,
Jay
We're coming close to trying to start the project car with the Metzger engine in and it's only now I realise just how complex getting the electronics right is.
I am learning as we go so forgive me if the terminology is out. There is an aftermarket ECU involved so we are starting from scratch.
We have set TDC on the light and established 274 degrees offset,
not 276 as expected. Fire order should be 162435 as per standard and cam triggers are 60-2 as I understand it?
Having checked injectors and coil packs by ear, all are firing the right cylinders (the loom is also new as it's not in a 996) I guess Cam sensors have to be on the right bank is a given and we can start without setting logic on the Variocam plus for start/ tick over.
Is there a factory spec sheet on this as I'd hate to get it wrong now. Injectors are standard (new) (450cc from memory) but we have a twin screw in-tank lift pump and a Bosch 044 in the mix so we are way over 3.8 Bar. Plugs are new.
If we have timed on a light and were at TDC on crank pulley then we can set 0 degrees on #1 and go from there on ignition I assume? Someone mentioned this has to be checked through the plug hole as it may be TDC on #4 but I'm not sure I understand how/why Porsche would do that???
Once done, are we missing anything? We are assuming a 5% throttle position for start up but I have no info on factory injector loads etc. to extrapolate from either. The car will get tuned eventually but for day 1, does anyone have info/ specs about just recreating what Porsche's settings would have been when the engine was in the 996tt??
:?:
Cheers,
Jay