So I got my f20c rebuild I have a question. So am going turbo but have a rebuild motor going in do I have to brake in stock or is there anything of a light tune on the turbo to brake in the motor be for giving full high hp tune.

 

breaking in sounds good.

 

What’s done with the motor? I ask because if you lowered the compression and drive it around you’ll probably **** it up on stock tune. Best to bolt on your FI and break it in on the dyno.

 

Who built the engine? Ask them for their recommendations. Engine break-in recommendations can vary wildly from one builder to the next.

Also, regardless of any recommendations, the point about getting a proper tune for the engine with/without the turbo is highly recommended if the engine is modified from stock.

 

Who built your engine? Who is doing the work for the turbo?

If they do not have advice for you on those key things, you need to find new people to work with.