i seen a busa with a set-up like this and thought to myself that it must have boost creep out the ***. but i wanted to know if anyone has tried this on there car. its basically a internal wastegate but just a tial wastegate thats welded to the turbine.

 

Well, that's different, but there's no reason it wouldn't work. I, however, would have welded it angling the ...other way.

 

Wastegates right on the housing work pretty well.

 

im kinda interested in tring this because I jusr refuse to give up my A/C in hot *** florida.

 

interesting...ive never seen or heard of that before

 

ATP turbine housings have a 38mm wg port right on them my evo friend's have made 510whp with GT35R's and a Tial 38mm on the turbine housing so i say it works pretty damn well!

 

Common on FP turbochargers. DSMers do that all the time

 

ok cool good to know i think im going to try it and if it works maybe i'll try on a BW S366



i diggin it


Modified by tony413 at 10:46 PM 7/26/2008

 

look closely on my old delsol setup you can see I did a similar thing with a mercedes 300sd turbo. Except ghetto stlye! LOL
held boost no problem, no creep, open dump.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by tony413 &raquo;</TD></TR><TR><TD CLASS="quote">ok cool good to know i think im going to try it and if it works maybe i'll try on a BW S366
</TD></TR></TABLE>

Just because it has been done, doesn't it mean it should have been done. I don't recommend that on the S366, especially with its larger exhaust wheel.

*Oh damn. didn't realize you were j/k.*

 

I may be asking a very dumb question but this is how we learn...Wouldn't the wastegate be better off before the turbine? It seems like it might be a close call when it comes to boost creep. (please don't flame me )

 

Not to mention welding steel onto cast iron isn't exactly the easiest thing to do.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by SovXietday &raquo;</TD></TR><TR><TD CLASS="quote">Not to mention welding steel onto cast iron isn't exactly the easiest thing to do. </TD></TR></TABLE>

that was the only problem I thought about when looking at the pics..

besides that, it looks like it would be fine!

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by accord_raffi &raquo;</TD></TR><TR><TD CLASS="quote">I may be asking a very dumb question but this is how we learn...Wouldn't the wastegate be better off before the turbine? It seems like it might be a close call when it comes to boost creep. (please don't flame me )</TD></TR></TABLE>

It is before the turbine.

 

from the pic i'm looking at, at the top, it looks like it is welded in right above the turbine

 

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

Just because it has been done, doesn't it mean it should have been done. I don't recommend that on the S366, especially with its larger exhaust wheel.

*Oh damn. didn't realize you were j/k.*</TD></TR></TABLE>

good lord i would shoot myself before i tried to cut up a $1300 turbo

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by SovXietday &raquo;</TD></TR><TR><TD CLASS="quote">Not to mention welding steel onto cast iron isn't exactly the easiest thing to do. </TD></TR></TABLE>

alot of turbo today use a cast stainless steel so they can be welded without problems thats how ATP and FP have the GT3076R. which im looking at aquiring maybe

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by SovXietday &raquo;</TD></TR><TR><TD CLASS="quote">Well, that's different, but there's no reason it wouldn't work. I, however, would have welded it angling the ...other way.</TD></TR></TABLE>

Looks like the right direction to me since it funnels the exhaust gas from the header before it hits the turbine.

 

while we are on the subject; a lot of turbo bikes i've seen don't use an intercooler, how come?

 

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

Looks like the right direction to me since it funnels the exhaust gas from the header before it hits the turbine.</TD></TR></TABLE>

Yeah, I see what you're saying, I would have just angled the wastegate down with the flow of air though provided space wasn't a problem personally.


<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by evosix &raquo;</TD></TR><TR><TD CLASS="quote">while we are on the subject; a lot of turbo bikes i've seen don't use an intercooler, how come? </TD></TR></TABLE>

1) Where are you going to put it?
2) The piping is all exposed.
3) Most aren't running enough to warrant it with the piping being exposed like that.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by evosix &raquo;</TD></TR><TR><TD CLASS="quote">while we are on the subject; a lot of turbo bikes i've seen don't use an intercooler, how come? </TD></TR></TABLE>

some busa owners build their intake plenum to function as a intercooler. they takes a DSM sidemount core and make weld it on top of the ITB's.

but generally you dont have to worry about detenation in a motorcycle because the piston speed is super [freak]ing fast and doesnt really give detenation a chance to happen




Modified by tony413 at 8:46 PM 7/27/2008

 

Why not on the downpipe instead

 

i've seen that design before on other motorcycles most of which had boost control issues. BUT they were slightly redesigned, whether they worked out i dont know. personally. i like the wastegate welded to the turbine itself because im trying to keep my A/C and want to have enough room.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by tony413 &raquo;</TD></TR><TR><TD CLASS="quote"> whether they worked out i dont know. personally. i like the wastegate welded to the turbine itself because im trying to keep my A/C and want to have enough room. </TD></TR></TABLE>

They work. If you weld it in the right spot, facing the right way, you will have just the same amount of room, and you won't have to weld on the turbo.

 

will that require me getting a turbine thats pretty much a internal WG design, but only missing the internal WG ???

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by tony413 &raquo;</TD></TR><TR><TD CLASS="quote">will that require me getting a turbine thats pretty much a internal WG design, but only missing the internal WG ??? </TD></TR></TABLE>

Of mounting it on the downpipe itself could be an option.