[Subajaru]

I have a pair of td03 turbos I'm thinking about fabricating into twins, one off each head, but I'm not sure if they will let the exhaust flow enough because they are quite small. Generally the engines with a td03 are about 1.5L in displacement so theoretically it could work. They are internally Wastegated at around 7psi, just over the 6psi I'm running on my impreza with a 1.8L and td04. Fitting and fabbing isn't a problem, just don't want to do all the work to find out they won't work lol. Any thoughts?

 

[Subajaru]

PS it will be installed on a ej25 twin cam.

 

[nepbug]

I assume you would do parallel turbos? Sequential wouldn't work well with those tiny turbos, parallel might work out. Try to find the compresor map for the turbos, then you can run some calculations to determine if they are appropriate for your application.

Packaging will be a nightmare, but it'll be unique if you get it done.

 

[Subajaru]

Yes twins as in parallel..how do i go about finding the compressor mapping? I'll just Google it.

 

[nepbug]

Yes twins as in parallel..how do i go about finding the compressor mapping? I'll just Google it.

Yep, Google is your friend there, then there are several great youtube videos that explain how to read and analyze the compressor maps.