GolfGTIforum.co.uk

Model specific boards => Golf mk4 => Topic started by: lord14 on 03 February 2011, 19:49

Title: golf 1.8t
Post by: lord14 on 03 February 2011, 19:49

jsut put a mk4 gti engine in a mk1 and i took it for a test drive to make sure its ok and if i put my foot down it boosts then drops back and stop boosting for some reason , but i have noticed that a pipe is missing off the n75 valve which goes onto the main boostpipe i think could this cause it ?

Title: Re: golf 1.8t
Post by: richw911 on 03 February 2011, 20:05

I think your right.

Title: Re: golf 1.8t
Post by: Dave_IOW on 03 February 2011, 20:06

(http://s2central.net/images/boost_control.jpg)

Title: Re: golf 1.8t
Post by: lord14 on 03 February 2011, 20:07

the two are on , one to the wastegate , and mounted in the air intake pipe , then ones missing whihc goes to the boost pipe , but i wasnt sure if thats wat would cause it

Title: Re: golf 1.8t
Post by: Dave_IOW on 03 February 2011, 21:30

a 7mm diameter legnth of silicone will answer that  :wink:

Title: Re: golf 1.8t
Post by: lord14 on 03 February 2011, 21:31

hows that ?

Title: Re: golf 1.8t
Post by: Dave_IOW on 03 February 2011, 21:33

Put it on and see if it solves your problem  :laugh:

Title: Re: golf 1.8t
Post by: bbewekim on 03 February 2011, 22:08

or 8mm silicon is just as good :P ;). I am still comfused as to how you managed to do an engine conversion... but not sort the hose from the charge pipe to n75... of course it will cause issues...??

Title: Re: golf 1.8t
Post by: lord14 on 03 February 2011, 22:42

mounting a engine and wiring it up is simpleand all the conversion bits but i'm not absolutely sure on all the vacuums

Title: Re: golf 1.8t
Post by: topher on 03 February 2011, 22:44

i drew this up a while ago because people are always asking me how the n75 is plumbed in, should be some help

(http://homepages.nildram.co.uk/~dv8r/golf/n75.JPG)

Title: Re: golf 1.8t
Post by: lord14 on 03 February 2011, 22:48

does the long end tip go into the silver boost pipe where the dump valve recirculating pipe goes ,

Title: Re: golf 1.8t
Post by: lord14 on 03 February 2011, 22:49

oh sorry about that lol didnt look at it properly i know how it goes now , thanks alot

Title: Re: golf 1.8t
Post by: topher on 03 February 2011, 22:52

TIP = turbo inlet pipe.. i should probably add that to the diagram actually