Fuel Cut?

[LordLo]

I added a t4 turbo a while back and it hit fuel cut at 11 psi; after installing my 550cc the engine pulled harder, but would still hit fuel cut. I am still using the stock AFM, but before hand it didn't hit fuel cut until 16 psi via stock turbo.

Is this normal to hit fuel cut sooner at a lower psi with a larger turbo or is it supposed to cut fuel at the same psi?

 

[rumptis]

yes, a larger turbo will flow more and you will get fuel cut at less boost but will also be making more power for the same PSI.

Also upping the injector size by its self will not change anything, other then making you run really rich if you are using the stock afm. But tuning after putting 550's in will help your fuel cut.

 

[TurboStreetCar]

Boost is resistance to flow, has nothing to do with fuel cut or horsepower level.