Injector info

This is very good info about injectors, check the Bosch item ID when you order new nozzles.

It's all a copy from the detailed site, http://www.myturbodiesel.com/1000q/multi/TDI-nozzle-FAQ.htm

.158 injectors: DSLA 150P 672, OEM on the 90 hp auto transmission mk4 ALH 1998-2003 engine, actual measured size is .138mm.

.184 injectors: DSLA 150P 706 (some say France) OEM on the 90 hp manual transmission mk3 AHU/1Z (post smoke recall for the 1996 passat) 1996-1999 engine and the mk4 ALH 1998-2003 engine, actual measured size is .170mm.  Remember that if you have this size nozzle and replace them with ".184" .170mm actual size nozzle you will see an increase in power because of the size difference.

.184 injectors: (Euro market: DSLA 150P 357)/(US market: DSLA 150P 442) (sprint 357/442 or PP357), OEM on the 90 hp manual transmission mk3 AHU/1Z 1996-1999 engine, actual measured size is .185mm.  Similar to the "smaller".184 injectors used in later cars except it has a larger opening and was used in injector bodies with lower opening pressure (190 bar) used with different ecu programming pre-smoke recall in the 1996 passat.  PP357 should give about +5hp, +10ft-lbs over comparable sprint nozzles with less smoke.

.205 injectors: DSLA 150P 520 (sprint 520 or PP520), found on the 110 hp Euro AFN/ASV engine, actual measured size is .205mm.  These are the stock nozzles found on the 110hp Euro cars which also used a larger turbo and different ECU to account for more fuel.  PP520 should give about +10hp, +25ft-lbs over stock nozzles and about +5hp, +10ft-lbs over comparable 520 sprint nozzles with less smoke.

I have the second .184 injectors, hopefully getting some extra push. :)