Note about aftermarket injectors: sizes should be close to advertised. For example, aftermarket .184 nozzles should be .184 actual and not .170 actual. Some .184 stock nozzles were actually .170. Aftermarket part numbers are highlighted in purple and follow the stock part number..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..216 injectors: These will give more power than .205 injectors. There were also two different actual sizes for injectors commonly referred to as ".216". See below for more details on actual sizes. You need adjustment of the fueling to control smoke and when used with a chip, advanced modifications and a new clutch are possible requirements to be able to burn all the fuel with little smoke. See 1000q: advanced power modifications for more details. They are not recommended for automatic transmission cars due to smoke.
Can someone explain how this wet system works on a diesel??? I have read a little about a guy using a wet system on a powerstroke.Are they injecting diesel into the turbo or intake piping along with nitrous? I can see diesel turning to jello real quick if both are injected through the same nozzle.I have heard of propane being used as a power enhancer. Also what keeps these added fuels fromigniting on the compression stroke before TDC if put through the intake system???I have some experience with wet systems on carbed and efi gassers, and have ran a dry kit on my 1.6TD caddy for a couple years now.Like mentioned earler if you have the extra fuel, nitrous will help burn it, and lower egt's.