My Mkturbo results
 

https://cimg1.ibsrv.net/gimg/www.mia...3a4703c692.jpg
Car details in sig. I want more poway, what T3 will get me over 300?

I think you should be able to break 250 easily with the turbo from Lars. I would work on your tune and address any other issues with your setup to max out the potential of that turbo before getting a bigger one.

Tune is spot on, I can run more boost but still wont get me 300+

Ok, well maybe I'm wrong then. I thought it was about the same as a 2560, which should be good up to like 275-300. The 2554 maxes out at around 240, so it's at least significantly more than that.

Do you have the full kit from Lars or just the base kit?

So 14-15psi? Why don't you crank up the boost more, see how much more power you can get?

SOTH has been testing out bigger turbos so he's a good person to ask about this. You have a built motor so might as well try to max this out to see what happens while you look for a decent T3 setup.

That's the plan, soon as I get a few more miles on the motor/clutch I'm gonna crank it up more