N75 backing off the boost

[gti_shaun]

ive got a brand new n75 which helped as it would not even peak at 21psi as it should with old one, but them race valve of which you speak are just a rip off as its just a h valve from a 2.7 twin turbo audi iirc, with a sticker on them and they charge 20 + quid more. mine got mapped on the standard valve (C) and was fine and now i have (F) which replace (C) valve at vw.

where can i get a F valve from? audi s3? or tt? mk5? and how much did yours cost you around £50?

VW have the (F) version they are all the same part number im lead to belive with just the letter at the end being different, its the standard AGU one, they may say its a (C) when you go VW by when it comes it will be a (F), hope this helps 

[gti_shaun]

i got a funny feeling, mine has been having simular issues and i have a feeling its down to a dodgy pcv valve. could i be barking up the wrong tree? as i was just thinking if it was stuck open then some of the boost would leak back to the TIP and i think thats the issue i am seeing. im going to replace it next week and see how it goes.

in your case you may be right but mine was replaced as the pipe was split, it is the one below the manifold right? and i have made a boost leak tester and mines ok. let us know how you get on mate

[T1 11JKE]

ive got a brand new n75 which helped as it would not even peak at 21psi as it should with old one, but them race valve of which you speak are just a rip off as its just a h valve from a 2.7 twin turbo audi iirc, with a sticker on them and they charge 20 + quid more. mine got mapped on the standard valve (C) and was fine and now i have (F) which replace (C) valve at vw.

where can i get a F valve from? audi s3? or tt? mk5? and how much did yours cost you around £50?

VW have the (F) version they are all the same part number im lead to belive with just the letter at the end being different, its the standard AGU one, they may say its a (C) when you go VW by when it comes it will be a (F), hope this helps 

I have a AUM engin, do you have the same? just wondered so that if i go to vw and ask for a AGU N75 valve they dont sell me the same that i have already got?

[gti_shaun]

no mine is AGU, nick at r-tech always says you should stick with the one that is on the car standard as it matches the Characteristics of the turbo so if you need a new one buy the one that comes up when you give them your reg at vw.

[RTechUK]

Them load logs dint look to bad, just missing the over shoot.
can you see what throttle valve openning you are getting and check the AIT temps are reading about right.

Nick

[gti_shaun]

Them load logs dint look to bad, just missing the over shoot.
can you see what throttle valve opening you are getting and check the AIT temps are reading about right.

Nick

thanks for looking for me  , i will check throttle and temp, ive noticed my car is faster if its a hot day and seems to boost more and hold more, which is strange as colder is the better air density? and if i start it up and let it warm up for a while its faster also? ?

so it does sound like a temp related issue, ive watched intake temp before and throttle angle but i will have another go, ive got a new gasket for between manifold and turbo just have to find time to fit it, im starting to think if may be down to that small blow as the lamda readings will be off for starters.

[Wazzzer]

can you see what throttle valve opening you are getting

 

ive got a new gasket for between manifold and turbo just have to find time to fit it

good luck with that 

[richw911]

When you fitting your new aeros then wazzzer 

[Wazzzer]

gotta pay for them yet 

[richw911]

gotta pay for them yet 

lol