2.5" or 3" for Road Race

[dl242gt]

You can also get the Cosworth style turbine housing. That has a large wastegate flapper. ATP sells a brand new .72 housing in that style, too.

 

[culberro]

You can also get the Cosworth style turbine housing. That has a large wastegate flapper. ATP sells a brand new .72 housing in that style, too.

Have you measured the ID of the WG hole on one before? Only being offered in the 0.72 A/R is kind of a bummer for the rally car. But maybe it would be ok?

 

[rb92673]

You can also get the Cosworth style turbine housing. That has a large wastegate flapper. ATP sells a brand new .72 housing in that style, too.

Interesting. I have two T04Es with the ATP Ultimate 3" internal wastegate. I think I want to stay with the 3" v-band for now.

Which reminds me, I probably need to source another 90+ manifold and port the replacement hot side for the old turbo. So much to do... meh.

 

[dl242gt]

Have you measured the ID of the WG hole on one before? Only being offered in the 0.72 A/R is kind of a bummer for the rally car. But maybe it would be ok?

The original housings are .48 and .63. The .48 is the most common and what I wanted.
The size of the puck is about 36mm and it fits into a nice machined lip. Can't get my
caliper in there to measure the bypass port. I was told the .48
housing will support just over 300hp which is the sizing that has worked out well.

 

[dl242gt]

My next attempt at a good turbo is one of the T04E compressor sides with the .48 cossie housing. Keeping the center section oil cooled.