The N75 valve J-valve modifies the normal operating parameters of the original N75 valve by delaying the speed at which these ECU signals are interpreted. The result is a higher initial peak boost and an elevated boost curve which tapers back to …

2004年3月13日 · Swapped out my N75F (stock valve) with an N75H; no difference in boost levels. In fact, I believe the car ran slightly worse for about 2 weeks, so I threw the F valve back on. I finally decided to cave and buy a brand new N75J valve from Autotech Sport Tuning (http://www.autotech.com/product/fuel-air/034-906-283J.html?fromcat=passat-b5-1_8t). I ...

This N75 "J" Race Valve modifies the normal operating parameters of the original N75 valve by delaying the speed at which these ECU signals are interpreted. The result is a higher initial peak boost and an elevated boost curve which tapers back to …

The 1.8T wastegate valve is commonly referred to as the N75 valve. AutoTech offers a direct replacement, factory upgrade for the stock 1.8T VW N75 valve. Known internally as the J or E valve, it literally transforms chipped cars by smoothing out the annoying surging that many aftermarket chips are known for.

2004年8月30日 · I've tested with the F, J and H valve on my car. F valve - Lower torque via Vag com and butt dyno from 3000-5000 rpms. After that it surges like stated. J valve - Clobers the F valve in torque from 3000 - 5000 rpms and holds better up top. H valve - A little stronger the J...and I mean a little from 3000 - 5000rpms.

2007年3月17日 · The N75J valve determines how much boost is held by the diverter valve. On chipped car and even std, 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. Works very well with chipped or re-mapped cars. see link

2010年4月14日 · The N75 valve controls the turbo wastegate actuator via directing air pressure to it by actuating a tiny solenoid when the ECU decides its neccesary. this solenoid can turn on and off VERY fast to keep the boost at the proper constant. basically it prevents overboost electronically instead of relying on a set tension spring on your wastegate.

2009年11月30日 · Re: N75J valve (~Enigma~) F valve is OEM on AWP motors. I had surging at full boost and the J valve cured all that. Much smoother throughout and zero part-throttle surged as reported by some. Tuning is from an OCT chip from Stratmosphere.

2005年12月5日 · check your DV for problems... if it's a plastic DV update it to a metal performance valve. If it's metal, make sure it is lubed properly. And check the vac hose from it to the intake manifold for leaks. The stock N75 F should be sufficient for you...no need for a J valve in order to get quicker response.

2003年11月6日 · N75H is the N75-"Race" Valve. N75J is a bit less aggressive, and more popular. Both are more aggressive than the stock N75, in that they wait longer than stock to open the wastegate when you let up on the gas. DV access is easy, if …