dv reversal

[Cupra-cal]

is reversing a forge 007p dv gonna damage my engine? been watchin some vids on you tube where some people have said it is not a good idea.

 

[motty225]

forge say you can run it both ways, so if they say its ok, i wouldnt worry

 

[DPJ]

Go on then.... tell us why the Utube experts think it isn't a good idea....

 

[JamJay]

TBH, mine ran like a bag of crap with it reversed so I swapped it back and I've never had a problem again.

 

[rsmith]

i have changed mine around so much i actually couldn't tell you which is the right way round now, LOL

 

[Cupra-cal]

DPJ, i never they said they were experts.all i said was i d seen it on you tube and wondered if it was true.as i know very little about the mechanics or tuning of engines,etc i can only go on what i seen hence the reason am on here asking.

 

[S17EW O]

im interested what the effects of turning it around are.....

 

[Steely]

in reverse the boost pressure acts on the base of the piston in direct opposite to the spring, so one benefit is it may drop boost quicker, but on the other hand it has more of a chance to leak boost too, in comparison of it acting on the side of the piston,

most dv do work as standard in the reverse position, i never understood why VAG fitted it the way they did, all i could think was due to the annoying little chirp it does in reverse,

 

[ashley600]

mines in reverse at the mo, it makes a squeak rather than a pissch. think i'll turn i around again and dremmel the engine cover so it fits better due to the silicone TIP.

 

[Mylo]

think mine is reversed and has been for ages, no issues at all and no chirping noise. A dirty big cone filter helps loads

 

[S17EW O]

forgive me if im wrong but isnt the pipe on the top alot smaller than the pipe on the bottom?? how do you get around this, also while im here, little question, where the little pipe goes from the dumpvalve, bypas the 249 then follow it down and it connects onto the inlet manifold on the underside on the left, which of those 2 smal pipes does it connect to, had my mani off and not 100% ive got them the right way round....

 

[wayne lcr]

so which is the rite way up then or round.With the nipple pointing up or faceing side ways?

 

[S17EW O]

wayne im as blagged as you, lol, just noticed your headlights look dark.....how have you done this?

 

[james walker]

oem is nipple upwards, reversed is nipple facing sidewards

 

[wayne lcr]

headlight covers tinted

 

[wayne lcr]

nice 1 james so which do you think is the best way ?

 

[S17EW O]

nipple being the smallest pipe, so its actually the other 2 you swap, the 2 fat ones?

 

[Mylo]

inlet and outlet of the DV is 25mm, so yes you swap their positions

 

[james walker]

nice 1 james so which do you think is the best way ?

never tried it reversed but logically reversed should be better, but the gay chirp you get would annoy me... cant see any real benefits either way tbh.

id leave it alone and maybe concentrate on other effective mods

 

[wayne lcr]

lol nice 1 james enough said