Oil pressure sensor placement in oil flow

[Zef]

Does anybody know where the original oil pressure sensor is placed in the oil flow on an KA24E from an 1990 240SX? Is it before or after the oil filter?

This question is because I will mount a T28 turbo on the car and tap oil from where original oil pressure sensor is placed. Would like to know if the oil in the oil pressure sensor hole is filtered or not, if not I guess I need to buy an inline oil filter for the turbo oil.

Thanks for answers and Im sorry for my bad english.

/Tomas
Modified by Zef at 8:14 AM 2/26/2008