TO4 turbine housing swap possible? Pics Inside

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08-28-2007, 12:27 AM

#11

junkyg20

0.5 BAR

Join Date: Nov 2006

Posts: 69

Re: TO4 turbine housing swap possible? *Pics Inside*

Quote:

Originally Posted by BLAAST

for autocross purposes, that t04b compressor with a t3 48 turbine will be awesome on the 1.8. fast spool up and as much as 250 WHP.

If you want more ponies in the future, you will be able to simply switch to a .63 turbine housing and get 100 more hp easily.

Make sure that core you purchase has no in and out shaft play and that the turbine housing is not too badly cracked. in case of doubt, you know, transforming your old t4 into a watercooled and warrantied .48 or .63 t3/t4 is something i can easily do for you in less than 48 hrs and for cheap.

What about running dual wastegates at a good shalow angle? Would that be a good substitute for a .63 a/r turbine while retaining the spool of the .48?

08-28-2007, 12:51 AM

#12

cjernigan

0.0 BAR

Thread Starter

Join Date: Dec 2006

Posts: 35

Re: TO4 turbine housing swap possible? *Pics Inside*

Blaast, would you mind PMing me a quote for swapping the CHRA out for a water cooled housing and whatnot. Just curious what it would cost me in the future if i chose to do so.

08-28-2007, 09:01 AM

#13

BLAAST

1.5 BAR

Join Date: Oct 2004

Posts: 877

Re: TO4 turbine housing swap possible? *Pics Inside*

Quote:

Originally Posted by junkyg20

What about running dual wastegates at a good shalow angle? Would that be a good substitute for a .63 a/r turbine while retaining the spool of the .48?

Twin scrolling is in theory very nice but the more i test it, the more i realise Joseph D. was damn right as usual, there'S no free lunch! even with all the twin wastegates in the world, the 1.32 a/r turbine will always remain laggy.
don't forget, on it's factory application, such t04b turbo is mounted without a wastegate. it's a free flowing turbine. it's designed for being laggy. all the exhaust flows through it and you basically get the boost you deserve as it varies according to load.