MembersPage/EvertDuindam (2009-01-02 21:32:57)

My first project is my Citroen CX 25 Gti Turbo 2. It's a 4 cylinder, side cam 8 valve, 2500cc, 1:8.5 compression turbocharged, intercooled, wasted spark engine.

MembersPage/EvertDuindam/CXFactorySetup

The biggest issue I've had on the install was the primary trigger. Having learned in the meantime, the VR solution was not the way to go. Because of the lack of a decent crank trigger location, I have used a cam trigger. The engine is chain timed so the variation should be minimal. The cam only primary trigger works very well as far as I can tell.

The injectors are setup sequentially and I still use the factory wasted spark ignition model which works fine.

The original airflow meter has been dismantled, as well as the original airbox. The new airfilter is a K&N conical one, which is still in a sort of temporary position while I think of a way to make the neccesary turns to the original air intake.

I've used the Siemens 630cc injectors at 3 bar from the webshop, and that appears to work well though the car is still less economical that it was on the factory setup, which is somewhat unexpected. These injectors should be more than enough for my current desires.

The wastegate now opens at about 0.6/0.7 bar of boost (it was on about 0.8/0.9 for the factory setup. Everything seems in decent order, though I haven't made any serious attempts to configure the boost solenoid yet.

In any case, in any future projects which use more or less the same engine (like almost all DS's and petrol CX's), I will be using the HALL primary trigger from the camshaft. My current trigger setup gives no errors whatsoever.

I have a rolling road day scheduled with DP engineering on the 17th of january, and I hope to have a decent setup upto about 0.8-0.9bar boost which seems to be the highest safe recomended number.

I do have a new blueprinted engine in the works with 20% lighter pistons, which will be much better balanced, but I want a decent config for a factory standard engine first.

MembersPage/EvertDuindam/PrimaryTrigger

MembersPage/EvertDuindam/ProjectPics

MembersPage/EvertDuindam/IgnitionMatters

MembersPage/EvertDuindam/RpmOutput

MembersPage/EvertDuindam/CitroenSM

MembersPage/EvertDuindam/CXGtiTupdateHistory