I saw this question on another post, and they said there was no problem. However I would like a second opinion. Is this bad to have nitrous and an UD pulley installed on a NA engine.

 

It was correct. There is no problem with installing both of these items together.

 

there is no problem, but from LONG time ago, atleast over a year, there was some speculation that the pulley leans out the car and might have been a factor in the engine blowing... but then again nothing was ever proven, but i never took the chance by installing it.

 

ill be installing nitrous soon (piecing my kit together) and have the UR ud pulley....well see.

 

Obviously the best way about it is to install the pulley then take the car to the dyno and find out what your A/F curve looks like before installing the nitrous. The smartest way to install a nitrous system is by using a wet system anyway which will not affect any leaning caused by the ud pulley anyway.