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Model specific boards => Golf mk4 => Topic started by: samy_1800_turbo on 18 February 2008, 20:35

Title: N75-J valve
Post by: samy_1800_turbo on 18 February 2008, 20:35

i have seen some one list a N75-J valve as a mod in the list your mods section, just wonderd what it was. is it to do with letting the boost pressure the the waste gate actuator.

Title: Re: N75-J valve
Post by: bobbarley on 18 February 2008, 20:39

Quote

The N75J is part of the system that determines how much boost is held by the diverter valve. Often when you add a chip to a 1.8t powered VW, the increased boost needs a little more control to be smooth. The N75J not only lets the boost peak a little higher, but it also helps get rid of surging.

http://www.peterbeers.net/vw_roadtrip/GTI/GTI_Mods/N75J/N75J.htm

Title: Re: N75-J valve
Post by: Ivor Mk4 Turbo on 18 February 2008, 21:10

I researched these valves a while back & the conclusion was about 50/50 to whether there was a gian or loss.  There was also a lot of talk about which valve was best for which engine code (there's the N75H/G/F as well).  In the end I decided to leave it.......

Title: Re: N75-J valve
Post by: samy_1800_turbo on 18 February 2008, 21:22

i read the link above still dont get what the point of it is, wots it surposed to do n improve