How much boost can stock 10th Ann fuel system handle?
 

As topic, just wondering how far you can go on a stock TII (10th ann), before needing fuel mods....

Take 120$ and upgrade it now :-)

i wouldnt go above 10 psi on a reg basis, but just be safe and put in some 720's and a rtek 1.7

First of all, the 10AE is just another Zenki FC turbo with special badging.
Mazda did not change out any of the engine or fuel systems on the 10AE compared to any of the other 1986 to 1988 FC turbos.

With that said, the stock fuel system barely can support 240hp at the wheels, DynoJet.
Stock fuel pump and fuel injectors all max out about the same time - about 250bhp flywheel.


-Ted

put in a f/c/d do not boost more then 9psi.