wastegate frequency valve infomation

[avants2turbo]

im wondering if anyone has any info on the wgfv (N75)

ive got a 944 turbo porsche that has a wgfv, and of course the s2's use them, all the 1.8t VAG cars etc but i see there are different variations of this valve

the porsche one looks completely different, still had 3 hose connections and a 2 pin electircal connection and the 1.8T boys talk about J, H valve (is this just a later revision) whats the difference?

my question i guess is, can i use a S2 N75 valve on my Porsche? the reason i ask is that the valve on mine is suspected to be faulty (ive only got WG spring boost) so i want to know if i can try out a spare s2 one ?

[Pirvu Eugen]

the differences between them is the plug location....facing the hose connections...and the location off the small metal lip wich fix the valve to the intake hose...

[avants2turbo]

the differences between them is the plug location....facing the hose connections...and the location off the small metal lip wich fix the valve to the intake hose...

and how about the one off the 944 turbo?

[Pirvu Eugen]

http://www.sjmautotechnik.com/trouble_shooting/20vwgcnt.html

Look here... and connect the s2 valve with the same hoses as the Porsche...

[avants2turbo]

so im not going to do any damage by fitting the s2 valve to the 944?

[UrS4boy]

im wondering if anyone has any info on the wgfv (N75) ?

This *might* help (or not):

http://forums.quattroworld.com/s4s6/msgs/20987.phtml

[avants2turbo]

excellent, cheers fellas.... so im guessing they all work in the same manor, im going to give it a try tomorrow

[mcandmar]

They may be interchangeable but they have different response times/characteristics. One of the VW forums did a dyno test with the various versions but i cant find it at the moment.

K and H are similar except the H version has the plug turned 90 degrees, fitted to ur S4/S6, K version was fitted to S2/RS2. J i think was the 3B version. Only other i have seen is an F from a 225 TT, looks the same as S2 valve but black instead of brown.

[UrS4boy]

They may be interchangeable but they have different response times/characteristics. One of the VW forums did a dyno test with the various versions but i cant find it at the moment. K and H are similar except the H version has the plug turned 90 degrees, fitted to ur S4/S6, K version was fitted to S2/RS2. J i think was the 3B version. Only other i have seen is an F from a 225 TT, looks the same as S2 valve but black instead of brown.

From the link in my post above:

034 906 283 J = stock 3B (in 200 20v and S2)
034 906 283 H = stock AAN (UrS4 and UrS6)
034 906 283 K = S2 ABY and RS2 ADU

Link to European Car N75 article on Skollie's server:
http://forums.audiworld.com/showthread.php?p=18772235

[newsh]

Keith, I've got a spare HD one here if you want to try it.

[avants2turbo]

Keith, I've got a spare HD one here if you want to try it.

is that one of the brass jobbies that were being sold on the forum not to long ago?

gota be worth a try...

[mcandmar]

Link to European Car N75 article on Skollie's server:
http://forums.audiworld.com/showthread.php?p=18772235

Thats the one, thanks

[newsh]

is that one of the brass jobbies that were being sold on the forum not to long ago?

gota be worth a try...

Yep

I've cured the water leak on the coupe now too so ready for the carpet

[bernsaudi]

looks identical to the saab 900 classic wastegate controller.