Installing a gt30-12

[demetrios aftias]

Hey guys I`m going to bolt my gt30r on hoping someone has done this it has a T25 style inlet  but turbo hits the motor anyone have a idea.

[daniel Dee]

Pics !!!!  Slowboy SBR gt-12 should bolt on to dsm manifold without issues..
Maybe you need to rotate the compressor or turbine..(loosen bolts to center section)

[KevinBuckham]

What turbine housing do you have?  Are you sure you just don't need to dent the water pipe a bit, then clock the compressor housing?

I would strongly guess it has something larger than a T25 inlet.  (Probably a 2.5" inlet?)

[demetrios aftias]

It hits the small water pipe that bolts to the block Im going to try rotate the compressor or turbine here is a pic of the turbo

[KevinBuckham]

Dent the water pipe with a hammer.  Don't block off the flow completely, but clearancing it with a hammer works.

[Greg Durban]

On one of the cars i've bought recently the guy used an extra manifold flange as a spacer and didn't have to dent the water pipe. Mind you this is only with a 20g so I have no clue of the similarities.

[KevinBuckham]

The other trick is to re-surface the exhaust manifold on a slight angle so it lifts the front of the manifold up when installed.  (This moves the turbo out.)

Still a hammer to the water pipe is easy.

[John Hartman]

slight careful denting of the water pipe is fine.  just go slow and carefully.  you can make it look nice too.  I have previously run a -10 and now I have a -12.

[demetrios aftias]

Hey John what did you do to the water line behind the turbo.  My turbo hits the bolt unless you remove the bolt for the water line then the turbo fits.

[John Hartman]

for that one, I cut off and slightly bent that hard line in your left hand so it comes upwards from the banjo bolt, then over top of the compressor cover at around the 10:30 position.  Then it feeds to the correct location with some appropriate flexible hose.

you have a 2g tho right?  I think your water pipe is different, because the trouble I had was with the straight down screw in water fitting behind the compressor inlet.  That one I had to use a barbed fitting with the same thread pitch as the stocker, then go with a steel braided flexible one out to the front water fitting on the CHRA.  I don't see that fitting on your water pipe.

It was quite a production really, but denting the water pipe was not a big deal.

[demetrios aftias]

I hope I don`t have to get a spacer.

[KevinBuckham]

ATP turbo sells coolant fittings for a GT30 center section.  Oh, so does RTM Racing:

https://www.rtmracing.com/xcart/product.php?productid=17483&cat=1688&page=1
and:
https://www.rtmracing.com/xcart/product.php?productid=17820&cat=1688&page=2

I used a hacked original on my previous setup and thought better of using that hack job again.

[Robert Vorley]

It is a good idea to use new fittings. I have reused mine before and ended up repairing it three times. They get exposed to a lot of heat cycling, fatigue, then crack.