blanking off dump valve...

[h17och]

whos had experiance with this? anyone?

i know alot of turbo boys do this and wondered what the effect was on the 1.8t?

HoocH

 

[Scotty_b]

Allot of old RST's did this as they never came with a DV. If its got it its there for a reason (well in most cases)

 

[BCM]

i used to run this, sometimes still do! tbh it feels like it hold a bit better boost!

 

[m0rk]

That would cause the turbo to stall? not a good thing

 

[dannyk]

If you plug off the dv then the excess pressure will not be relieved when the throttle closes and the turbo will stall as mork says - not a good thing and expect the turbo to have a shorter life span!

 

[h17och]

evryone says it shortens the life of a turbo but i know people been running it for years...? does feel bettter tho

 

[m0rk]

I can't see why it would? it won't maintain boost - because it'll just stop the turbo dead needing it to spool up from scratch again.

who's been using it on a 1.8T for years?

 

[ibizacupra]

compressor stall.... high boost, turbo tries to stall, bearings suffer eventually.

they are there for a reason

 

[andycupra]

Hang on,
isnt blanking off the dump valve refering to when people change a recirc to an atmosheric? ie they blank off the recirc pipe. Many kits came with a blanking plug thing.

Therefore this doesnt apply to the 1.8t?

 

[Ant FR]

yeah my brothers Fiesta RST has had the dump valve plugged, however i am pretty sure he has an external wastegate, thats why he gets the lovely rally style flutter sound, sounds great.


however on the 1.8T its just a silly idea, i remember my mates old man's golf 1.8T started making flutter noises and sounded really cool. the standard dump valve had broken down and blcoked itself ( not that he knew that ) lasted about a month before the turbo gave up the ghost.

i also know when i had my adjustable spring on my 1.8T and did it too hard, i also got turbo stall, sounded good but i am sure its not healthy.....lol

 

[BCM]

thats why i never ran mine for ling, was temp till i got my 007 fitted!
as said sounded great, but as said, heard it will shorten the life span!