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Downpipe question....! Need Help
3 Attachment(s)
Here is my Outlet of my turbo i have no wastegate clapet that i can weld is this a problem if im planning to run an external wastegate on my mani?
Attachment 209258 Attachment 209259 I mean do i really need to weld something out there or i just can use this and bolt it to the rest of my exhaust. Attachment 209260 |
you would need to either weld the little hole shut or attach the wastegate. if you're running external the answer is obvious: weld the hole. otherwise the turbo will operate as if the wastegate flapper is always open, and you will get almost no boost at all
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What may i weld there? any idea?
Turbo is a GT2854R is this too small for my engine b6t bottom with a b6de head? Planning around 250whp... |
I suggest buying a new turbine housing.
Turbo Housings It's not listed, but I think that'll fit your GT2854r... they probably also have a v-band model for external gate. Call ATP and they'll set you straight. It's not cheap, but in the end, it'll be done correct. |
or use one of these:
http://images.marketplaceadvisor.cha...fg-5b-dp_g.jpg |
Except without a gasket. Just machine the turbine exit, and mate it metal to metal. The gasket will blow out.
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Originally Posted by boisvertjean
(Post 349277)
Turbo is a GT2854R is this too small for my engine b6t bottom with a b6de head?
are you sure about that?????? Must be one of those GT28XXs with the T3 turbine housing, T3 CHRA, and T3 compressor housing...... What do the numbers on that red serial plate read? does your turbine inlet measure 1.8" x 2.3" or 1.5" x 1.9"??? |
We've welded these shut, we just cut a piece of metal to fit, tack it in place inside the hole, then weld around.
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Originally Posted by Braineack
(Post 349537)
What do the numbers on that red serial plate read?
does your turbine inlet measure 1.8" x 2.3" or 1.5" x 1.9"??? yeah, I'd like to know this as well. |
Originally Posted by Braineack
(Post 350064)
yeah, I'd like to know this as well.
Red Tags read 22413124---TBRO114H On the turbine side it say M24 A/R 42 Next to the GARRETT |
Originally Posted by Saml01
(Post 349532)
Except without a gasket. Just machine the turbine exit, and mate it metal to metal. The gasket will blow out.
What do you mean by machining the turbine exit? |
Originally Posted by boisvertjean
(Post 350130)
1.8 X 2.3 must be a T25 right?
that's a t3 inlet size... On the turbine side it say M24 A/R 42 Next to the GARRETT you have yourself a standard journal bearing T3. |
Originally Posted by boisvertjean
(Post 350131)
What do you mean by machining the turbine exit?
Frank |
Originally Posted by Braineack
(Post 350136)
that's a t3 inlet size...
you mean compressor? and it look just like #4 and #5 in this pic: http://www.mjmturbos.com/images/T3housingA.jpg you have yourself a standard journal bearing T3. |
It is if it's at least a 55 trim. Remove the compressor housing (wastegate actuator and 2 plates on back of the housing) and measure the inducer diameter.
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ill check that and ill repost damm ive been trapt :(
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on the compressor side i got 42mm inducer and 60mm exducer look like the gt2259 except this turbo is supposed to be free float
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then? :S a bit small i think?....
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It can output around 27 lb/min.
It will be a turbo with a compressor wheel just slightly smaller than the 2560, but a turbine wheel just slightly larger than the 2860. It will more or less perform like a 2554, not as fast spooling, but with more power potential. IIRC Arkmage has a t3 with that trim, see his dyno plots: https://www.miataturbo.net/forum/t18609/ |
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