I remember a while back seeing on a drag car how they have wastegate on the charge pipe.. would this be absolutely horrible to do? I understand it will be constantly blowing air, but in reality you would not need a wastegate on your turbo then correct? You basically eliminate your BOV and move your wastegate to your charge pipe. It would sound badass too I'm sure.

 

On second thought.. maybe have a wastegate on the exhaust mani that is slightly higher than the one on the charge pipe so the turbo doesn't infinitely spool..

 

are you sure it was a wg on the charge pipe?

 

absolutely.. supposedly the turbo spools infinitely and the wastegate on the charge pipe controls the amount of boost.

 

there it is

 

well that turbo is also the size of my face!!!

why would you wanna do that? wg instead of bov?

 

wow, i guess it would be fine for a race set-up

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Jordo &raquo;</TD></TR><TR><TD CLASS="quote">why would you wanna do that? wg instead of bov?
</TD></TR></TABLE>

to move more air faster.
its like a really big bov

 

most likely if you needed to expell huge amounts off boost through the bov and a bov that could support over 50psi is hard to find so they said frick it and used a big *** wastegate.

 

you could use 2 bovs too if you really have flow problem.

Letting a smaller turbo spool as far as it will might just make a lot of hot air, but DSM guys do it so i guess it works sometimes. I thing a dedicated WG and BOV is the way to go. plus bovs are cheaper than WGs!

 

Get a TiAL blowoff valve with a hard spring. You should have no problems unless you have a setup like the beast above.

 

My only guess is that the turbo would be constantly spooling. Even in between shifts. So you would theoretictly never lose any boost?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ImAcracker &raquo;</TD></TR><TR><TD CLASS="quote">My only guess is that the turbo would be constantly spooling. Even in between shifts. So you would theoretictly never lose any boost?</TD></TR></TABLE>


It probably uses a sequential shift tranny, but its not the 1st car ive seen to use only a BOV

 

just ask art, thats his pic

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Jordo &raquo;</TD></TR><TR><TD CLASS="quote">well that turbo is also the size of my face!!!

why would you wanna do that? wg instead of bov?
</TD></TR></TABLE>you must have a big face

thats about the size of a basketball

 

that **** is crazy!

 

wouldnt the turbo just overspool constantly? You would have to get a new turbo like every 1500 miles....

 

Well, 1500 miles are a lot of 1/4mile passes

A WG is basically a valve that is designed to open at a certain exhaust gas pressure and at a certain boost pressure that is fed at one of the inlets.

This setup is very similar to the Pop-off valves that HKS used to sell... These pop-off valves are mounted at the charged side and it would vent off as it detects over boosting (adjustable). As long as the charged air is being vent off quick enough, the engine will never overboost.

Apparently, the turbo will still stop boosting or slow down between shifts on a traditional 5spd regardless of BOV/WG setup... The engine has much lesser load as you clutch in, which will eventually create much lesser exhaust gases to keep the turbo moving... To keep the turbo moving during shifts, you have to run either an automatic or a sequential transmission.

 

also the air being pushed through would be incredibly hot and the turbo would be working at 100% efficiency......and we all know hot air is not good.....

I just think this is a bad idea, but than again what do I know?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Del &raquo;</TD></TR><TR><TD CLASS="quote">also the air being pushed through would be incredibly hot and the turbo would be working at 100% efficiency......and we all know hot air is not good.....

I just think this is a bad idea, but than again what do I know?</TD></TR></TABLE>


What you don't know is when your running a turbo that big, you have issues keeping it spooled. Yes, you have a squential trans, but just the minute RPM drop will cause the turbo to possibly fall out of boost. You use the wastegate to just sbleed off pressure.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Del &raquo;</TD></TR><TR><TD CLASS="quote">also the air being pushed through would be incredibly hot and the turbo would be working at 100% efficiency......and we all know hot air is not good.....

I just think this is a bad idea, but than again what do I know?</TD></TR></TABLE>
I wouldnt think it would get much hotter than it would using a traditional setup. Remeber that the air gets heated because of presure. And the air isnt getting anymore presurized in this setup than a traditional one. Does that sound right?

 

WG's dont open with exhaust pressure.. if it did tial couldnt label its springs 5psi 10psi etc..
there isnt very much

it opens with manifold pressure. (boost)

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by GraphiteAccord &raquo;</TD></TR><TR><TD CLASS="quote">


What you don't know is when your running a turbo that big, you have issues keeping it spooled. Yes, you have a squential trans, but just the minute RPM drop will cause the turbo to possibly fall out of boost. You use the wastegate to just sbleed off pressure.</TD></TR></TABLE>

yeah, but in this situation it is a Honda, which will cause a bunch of different problems

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by FredoSP &raquo;</TD></TR><TR><TD CLASS="quote">just ask art, thats his pic</TD></TR></TABLE>

In that same thread MY pic was posted I explained why a wastegate is used on in the intake track.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Jordo &raquo;</TD></TR><TR><TD CLASS="quote">well that turbo is also the size of my face!!!

why would you wanna do that? wg instead of bov?
</TD></TR></TABLE>

i dunno... thats a big turbo... It looks like the size of a 13' rim haha