2.0 TDI BiTurbo 240 ps engine technical details

[mickyTDI]

I came across this pdf that might interest some on here. It details the uprated differences between this engine and the lesser power engines. It uses a twin- plunger HPFP Hoping to own this car around January, anyone know remap figures for this unit?

http://users.telenet.be/veerle_haai/08_A2.2_Eichler_VW_bitdi_2.0.pdf

 

[mrchill]

There is an outfit that gets 300 hp out of those.

 

[mk3pd]

The crankcase of the 2.0l TDI BiTurbo is based on that of the mono-turbo engine,
which is cast in GJL-250. In order to ensure the best tribological characteristics with
low oil consumption and blow-by figures, the cylinder walls are honed with a torque
plate bolted to the cylinder head interface

Seems like vw finally has figured out that stress honing IS important

 

[mickyTDI]

The crankcase of the 2.0l TDI BiTurbo is based on that of the mono-turbo engine,
which is cast in GJL-250. In order to ensure the best tribological characteristics with
low oil consumption and blow-by figures, the cylinder walls are honed with a torque
plate bolted to the cylinder head interface

Seems like vw finally has figured out that stress honing IS important

What advantage does that process do to the walls, make them harder wearing?

 

[mk3pd]

The cylinder is actually round AFTER the head is bolted on

 

[v8 coupe]

So I have been getting mixed information on the size of the drive gear on this engine. I have been told it is the same as that on the lower powered units, but in this one it says it spins the pump at half the cam speed. So is it 4x slower than the crank speed or is it still half the crank speed?

 

[mrchill]

Same as the others.

 

[v8 coupe]

Same as the others.

So still only 1 piston coming up to TDC for all 4 ignition event. So it is at same speed as crank not at camshaft speed?

 

[mrchill]

Same size gear, 2 pistons. Much like a V6 tdi pump.

 

[v8 coupe]

Same size gear, 2 pistons. Much like a V6 tdi pump.

So like when this was done earlier. So lets call them pistons 1 & 2, piston 1 being timed like the stock CP4.1 was. So piston 2 is only a compensating piston to keep the rail pressure upto the required 2500 bar or 36,750 psi. That is 700 bar more than the USA cr140s run or 10,290 psi. So putting this pump, rail, and lines on a CR140 could easily make the stock injectors out.

 

[mrchill]

I'd use the proper injectors....but you could likely use the stock ones.