Theres a guy from a car form direct swapped the compressor housing on his gtir turbo with a S14 housing( T3 to TO4B). Has anyone heared of this swapp being done and is it worth it? He said somthing about it being a little laggier but a big kick once it hits.:shock: What do you guys think?
GTIR turbo with S14/15 turbo housing swapp = more power?
- Thread starter djdoc360
- Start date
If you know what you're doing you can mix and match turbines and compressors to your hearts content - it's just that most people don't and it's easier to buy a turbo that has already been matched appropriately.
Or is that wrong? - I just remember about 5 or 10 years ago everyone was talking about swapping the compressor over... Garatt T01 to a Garatt T1.5 and so on, but keeping the existing turbine as that was the right one for their engine. These days people just buy a new unit and don't bother with doing their own rebuilding. I will admit that this was mainly for rotary engines at the time; I had a friend who was building a big power RX3.
Or is that wrong? - I just remember about 5 or 10 years ago everyone was talking about swapping the compressor over... Garatt T01 to a Garatt T1.5 and so on, but keeping the existing turbine as that was the right one for their engine. These days people just buy a new unit and don't bother with doing their own rebuilding. I will admit that this was mainly for rotary engines at the time; I had a friend who was building a big power RX3.
I going to swapp the compressor house because what i read, the T3 compressor house is smaller than the TO4B on a s14/15.
http://www.sr20forum.com/forced-ind...7-rare-t04b-compressor-housing-gti-r-t28.html
^ is a link on the SR20from sight.
and also
OEM:
S13 SR20DET: T-25, 60 trim 56mm BCI-1 compressor, 53.8mm 62 trim
T-25 turbine, .64 A/R turbine housing. Journal
bearings.
S14 SR20DET: T-28, 60 trim 60 mm BCI-1 compressor in T-04B housing,
62 trim 53.8mm T-25 turbine. .64 A/R turbine housing.
Ball bearing center section.
S15 SR20DET: Same as S14, but with Inco turbine wheel (instead of
GMR), cast divider wall between turbine discharge and
wastegate.
Pulsar GTi-R: T-28, 60 trim 60 mm BCI-1 compressor in standard T-3
housing. 79 trim 53.8mm Inco T-250 turbine wheel .86
A/R turbine housing. Journal bearings.
quote from some guy.."GTi-R T-28 is a really good turbo. I think that it is better if you lose
the T-3 compressor housing and get a housing off of the S14. This is a big
improvement. With the T-04B compressor housing, the GTi-R turbo can support
about 16 psi and 280+ wheel hp. Makes pretty good boost by 3500 RPM, too."
So the hot 86 A/R on the GTIR is bad ass compared to is other SR cousins. Its the compressor housing on the gtir turbo that smaller. And by swapping the housing , it can breath better. I found a S15 turbo for very cheep + i have my spare GTIR turbo. So im going to give it a go.
http://www.sr20forum.com/forced-ind...7-rare-t04b-compressor-housing-gti-r-t28.html
^ is a link on the SR20from sight.
and also
OEM:
S13 SR20DET: T-25, 60 trim 56mm BCI-1 compressor, 53.8mm 62 trim
T-25 turbine, .64 A/R turbine housing. Journal
bearings.
S14 SR20DET: T-28, 60 trim 60 mm BCI-1 compressor in T-04B housing,
62 trim 53.8mm T-25 turbine. .64 A/R turbine housing.
Ball bearing center section.
S15 SR20DET: Same as S14, but with Inco turbine wheel (instead of
GMR), cast divider wall between turbine discharge and
wastegate.
Pulsar GTi-R: T-28, 60 trim 60 mm BCI-1 compressor in standard T-3
housing. 79 trim 53.8mm Inco T-250 turbine wheel .86
A/R turbine housing. Journal bearings.
quote from some guy.."GTi-R T-28 is a really good turbo. I think that it is better if you lose
the T-3 compressor housing and get a housing off of the S14. This is a big
improvement. With the T-04B compressor housing, the GTi-R turbo can support
about 16 psi and 280+ wheel hp. Makes pretty good boost by 3500 RPM, too."
So the hot 86 A/R on the GTIR is bad ass compared to is other SR cousins. Its the compressor housing on the gtir turbo that smaller. And by swapping the housing , it can breath better. I found a S15 turbo for very cheep + i have my spare GTIR turbo. So im going to give it a go.
warringtonjack
Active Member
I don't know whether I'm being thick and completely missing the point, but why would you want better 'breathing' on the compressor side? Surely this will just result in better spool up times, but ultimately lower power?? :noidea:
If the GTiR T28 could have been made better with a different sized compressor housing, I'm sure Nissan would have done it.
warringtonjack
Active Member
In that case, let us know how you get on! :thumb:
L
Laurence
Guest
Hey can you PM with details of where to get an S15 Turbo for $50!? Thanks!
davey red.r
New Member
and if your intending to buy a tubby for 50 dollars you deserve all you get:doh:you might as well modify a standard bar of dairy milk to fit your manifold.
davey