Dumptube/2G BOV thought...

[truwarrior]

Just wondering if cuting the dump tube will affect my bov from holding boost. I was thinking since the dump tube is so deep into the snorkle what maybe the turbo sucking in air would create a vacum in the dumptune and help keep the bov close. Not sure on the design of the 2G bov though... What do u think? With my current mods I don't wanna cut it and loose and psi.

 

[dsmstunna]

Originally posted by truwarrior
Just wondering if cuting the dump tube will affect my bov from holding boost. I was thinking since the dump tube is so deep into the snorkle what maybe the turbo sucking in air would create a vacum in the dumptune and help keep the bov close. Not sure on the design of the 2G bov though... What do u think? With my current mods I don't wanna cut it and loose and psi.

What are you smoking? having the god ugly pipe stuck down your intake is in no way good. and even if it had a slight VAC on it it be pullin the BOV open not shut!!! that little vac hardly matters but what little extra vac you might elimante it will be an advantage

and mabey you should try posting this in the nOOb's fourm

 

[Tallen]

uhh, bad idea. the 2g bov is junk, and theres reall nothing u can do but replace it.

cutting that dump tube would let in gobs of unmetered air. thats not good!
not to mention the leaky 2g bov would let alot of unmetered air out too. not good!

 

[Smokin GST]

we're talking the part of the dump tube that extends into the turbo intake... not completely removing it...

 

[truwarrior]

So basically haveing the dump tube cut would help hold boost ever so slightly and allow more flow? What's the biggest restriction? UIP or snorkle? I installed a apexi intake system.

Also on the issue of air flow, would adding a Brode UIP make my t25 work harder? I wonder this because the stock uip restricts flow. If so should I turn the boost down from 14 to 12-13 psi? Right now I have no way to control boost, so I guess I'll have to get a mbc.

 

[Smokin GST]

here is what you need:

boost gauge
boost controller
aftermarket UICP
aftermarket BOV (i use a 1G BOV... cost me $15)
open-element air filter

don't ask if you can get away with anything else. that's what you need. a UICP will not fit with the stock air box. just a high flow filter won't fix your boost leak. do ALL of those. there's some things you just shouldn't half-ass.

 

[herostar]

sure, cut it. There's no harm in doing that. If you noticed on all the aftermarket intakes there is no dump tube extending into the intake. It restricts the flow of air to the turbo.

 

[Defiant]

Originally posted by herostar
sure, cut it. There's no harm in doing that. If you noticed on all the aftermarket intakes there is no dump tube extending into the intake. It restricts the flow of air to the turbo.

Perhaps, although not likely to a measurable degree. It also blows quite a puff onto the compressor turbine when that presssure -o0h shit, Schumacher just spun off and snagged -Montoya biffed him- returns from the intake, it's coming right onto the turbine. Between that and the sudden loss of load on the output of the compressor, you're probably saving 80% of your spool speed. Factoring in, of course, that 98% of percentile statistics are 99% bullshit.