Silvia Club of NSW
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Whistling Dixie (GT3076R)
https://forum.silviansw.com/viewtopic.php?f=1&t=26621		 Page 2 of 2
Author:  STR8E180 [ Wed Sep 30, 2009 9:50 am ]
Post subject: 
we can get

GT3071
GT3076
GT3540

all in .78 twin scroll
we can also do them as a kit with manifold, twin gates, screamer pipes, oil and water lines
Author:  STR8E180 [ Wed Sep 30, 2009 9:52 am ]
Post subject: 
too_much_boost wrote:
Whats that kit worth?

Also can the 3071 be got in a twin-scroll too?

POWERTUNE GT3071 & GT3076 TWIN SCROLL HIGH MOUNT TURBO KIT

GT3071R & GT3076R TURBO KIT
Turbo kit contains
* GT3071R or GT3076R turbo (comes with v band flange to be used for dump pipe)
* Tune length steam pipe manifold with life time warranty (Optional ceramic coating for $250.00)
* Braided Earls oil and water lines
* Screamer pipes
* TiAL 38mm mvs wastegates (new small compact design which also uses v band flanges)

TOTAL PRICE OF TURBO KIT = $4560
Author:  whyte [ Wed Sep 30, 2009 10:48 am ]
Post subject: 
hey kempo,
how much for just GT3071R TS? can it fitted with oem manifolld?
Author:  too_much_boost [ Wed Sep 30, 2009 10:49 am ]
Post subject: 
It appears to be a T4 flange
Author:  badhairdave [ Wed Sep 30, 2009 11:00 am ]
Post subject: 
it's t3, there are 2 sizes.

The stock rb turbo uses the larger of the 2.

The garrett single scroll housings use the smaller one.

Bolt holes are the same though.

Not sure which size the ts one is but i would assume larger to accommodate the splitter
Author:  STR8E180 [ Wed Sep 30, 2009 4:30 pm ]
Post subject: 
whyte wrote:
hey kempo,
how much for just GT3071R TS? can it fitted with oem manifolld?


no it cant
twin scroll exhaust housings comes in a T3 divided flange and the standard oem manifold isnt divided nor is it T3
Author:  whyte [ Wed Sep 30, 2009 4:54 pm ]
Post subject: 
STR8E180 wrote:
whyte wrote:
hey kempo,
how much for just GT3071R TS? can it fitted with oem manifolld?


no it cant
twin scroll exhaust housings comes in a T3 divided flange and the standard oem manifold isnt divided nor is it T3

It is T3 on a RB20/25
can you quote me on the turbo itself, no need for any fittings or lines etc.
thanks
Author:  STR8E180 [ Wed Sep 30, 2009 7:01 pm ]
Post subject: 
a twin scroll exhaust housing the turbo wont work on the standard RB20 or RB25 manifold
u will need to go twin scroll high mount on a RB engine

these prices are for an RB20 or RB25 (price for SR20 kit is different)
fittings are $300
manifold $1200 ( made from steam pipe with life time warranty )
turbo $2050
intake pipe $220
intercooler hot pipe all the way to the intercooler $250
dump pipe all the way to the cat $400
TiAL 38mm external gate $580 each and remember u will need 2 of these (new series compact design which uses v band flanges)
Author:  JayS14 [ Wed Sep 30, 2009 8:37 pm ]
Post subject: 
Interesting shit :D, i need more cash...
Author:  whyte [ Thu Oct 01, 2009 11:31 am ]
Post subject: 
very interesting indeed,
kemp, can the gt3071 be low mounted & can sonny make a lowmount TS manifold with ext gate ?
Author:  STR8E180 [ Thu Oct 01, 2009 6:36 pm ]
Post subject: 
whyte wrote:
very interesting indeed,
kemp, can the gt3071 be low mounted & can sonny make a lowmount TS manifold with ext gate ?


we dont any sort of single turbo low mount manifolds for the RB engines
there just isnt enuff room down there for any sort of decent manifold design
the only low mount manifolds we offer for the RB engines are twin turbo low mount manifolds
Author:  182Go [ Wed Oct 07, 2009 11:02 pm ]
Post subject: 
you don't need a twin scroll exhaust housing to get it to spool, you just need the right exhaust manifold. By keeping the plenum area to the absolute minimum and directing the flow to the centre I got away with the single scroll .63 housing.

Image
Image
Author:  too_much_boost [ Thu Oct 08, 2009 7:03 am ]
Post subject: 
That manifold design is just a copy of the shitty stainless ebay ones. Dave's engine has proven that longer runners doesn't hurt response at all
Author:  182Go [ Thu Oct 08, 2009 11:34 am ]
Post subject: 
It’s far from a copy of those cheap and nasty chrome things you buy on ebay... and as far as runner length goes I would beg to differ. This 3rd and final manifold was far superior to the two that went before it that both had longer runners. This thing spooled faster, more evenly / smoothly than both of the previous manifolds even with the smaller GT2871R (.64 rear housing) turbo they were using.

Those cheap and nasty chrome things on ebay, have longer runners, extremely poor designed and a massive plenum area where any kind of momentum is completely lost before it even makes it into the turbo housing. I deliberately designed it so the gasses would aim at the centre of the turbo housing inlet, kept the volume of the plenum down to the absolute minimum and just over the size of one pipe so there is no massive drop in pressure or speed between the runner and the turbo exhaust housing.

The back side of the top flange is fully welded and shaped to aid the flow towards the centre not run square into the back of the flange like those cheap ebay things. Nor do they have a divider in the middle to help keep the gas velocity up. I also port matched the size of the exhaust housing inlet size to the flange outlet size to better aid the flow of the gasses.

While I took into consideration some of the better design aspects of those cheaper units, I certainly didn’t set out to model it on them. I took what I learned from the previous attempts and just applied that logic to the final design.

Using the .63 rear housing helped it get on song much sooner but I think the design would also lend itself to a twin scroll .78 housing if you were looking for high end power. Once again I say that the exhaust housing design will make minimal difference if the manifold is designed poorly.
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