I'm building a b16a turbo right now and this is my first build so as much help would be very apreciated . I want to hit about 350hp. I am using the srp 9.1 pistons and eagle rods I want to use the stock head if possible but I was wondering what size turbo to use for this application and also what injectors would work best.

 

https://honda-tech.com/forced-induct...2A%2A-1024174/

Rough injector sizing: 720-880cc for pump, 880-1000cc for E85 @ ~350whp
Turbo: There are 25 different units that could work. It depends on budget, goals, etc... Start looking at the T3/T04e 57 trim and compare from there

 

whats with the injector sizing calculator giving such huge numbers? lol. I see calculators giving results like that all over the internet.
In real life, I've done 320whp on 450's running richer than ideal, 420whp on 650's, and 500+ on 750's. all running base fuel pressures of 43-45psi.

 

The Stock head will work perfectly fine for 350whp. For the slug is recommend something like a small 57 to a 60 trim. A cheaper alternative would be something like a Holset HX35. I'm not sure how well a turbo that size would run on a 1.6. You can easily run 500cc injectors for 350, but id go bigger just incase You ever wanted more power. Make sure you do your research and take your time to do everything right on your first build man.