I have an fc with a 13b n/a with all internals from a 13bt. I was wondering what type of turbo to use and what range would I use it for I know nothing about them so..... any answers would be appreciated.

 

be more specific?
Power goals?.ecu?..size of injectors?.

 

What's your budget?
Also, did the builder leave the exhaust diffusers in your NA housings?

 

he did leave the exhaust diffuser in it but I don't know the size of the injectors, im going to pick up the data sheet this weekend that he made when he was building the engine. As for the power I was thinking around 300 to 350.

 

The diffusers are going to be somewhat of a restriction, but I think 350 is doable. Something like a BNR stage 3 or a smaller T4. Check out the 2nd gen dyno sheet section and look at some proven setups for idea.