does anybody out there with a knowlege of dump valves know how to remove my existing 2 dump valves and fit 2 atmosferic dump valves on my 94 bg5 ?
i can,t see how it is possible cos there are pipes coming off them from all directions,bearing in mind ,ime not that clued up on how dump valves actually work.
any ideas?????

cheers roy.

 

I believe that changing the primary bov is not too hard. The secondary is another story as this bov also controls the spool up of the secondary before the switch over.Why the need for atmospheric? Advice i have seen on the twin turbo web site is that the std plastic bov on the primary is utter crap and is a common cause for fluctuating boost levels. So replacement is a good option. Also to be noted is that atmospheric bov's dont seem to lead to overfueling on TT's.

 

You should only have to do the one on the primary. the one on the 2ndry is mostly for looks

Join the B4 group on yahoo for more input from TT owners. http://groups.yahoo.com/group/legacyb4

Cheers

 

cheers guys for your very very speedy response!!!!!!!!!!!
i am on my way to buy just the one bov this afternoon for the primary turbo,i shall let you know how it goes.

thenkx again for your help,
roy...

 

o i for got to ask,,,
what model and make should i buy?????

 

Bit late, but the HKS is a good one - I have personally only seen one BG5A with one on, and it was brill.

HTH

 

thankx for your advise,i didnt have time to get one yesterday,but wil get one today.
thanks again,
roy