alright, so i just came from owning and building 240's to owning an fc3s. i was wondering what a safe amount of boost is for my setup:

s4 13bt
s4 ported wastegate
3" exhaust, test pipe
hks downpipe
stock injectors
stock fuel pump
stock ecu

what are the size of the stock secondary injectors? what if i were to get an FD fuel pump; how much boost could i run then?

 

Get an FCD an you could probably run 10-11 pounds safely. Not much of a turbo guy though.

Without the FCD stick to stock levels.

 

10psi.

 

You can run 10 psi, but it is always a great idea in my opinion to start not only with fuel upgrades, but fuel management as well.

 

Not really a good idea to go to 10 PSI on a stock fuel system. Larger secondaries and a piggyback controller, as well as an upgraded pump is far safer.

Stock injector sizes on the TII are 550CC. Primaries are the same as the secondaries.

 

stock boost until you address your fuel system and FCD.

 

i assumed he searched and knows to upgrade his fuel system so he can safely push the 10 psi. If he didn't then he's dumb and should quit wasting people's time.

 

I'm not even a turbo guy, (planning to supercharge) and I can tell you that you'll need an FCD to push beyond stock. With basic supporting mods, like yours and maybe injectors, somewhere in the neighborhood of 10-12# sounds reasonable.

 

Sadda, you should change your sig now.

 

it's a forum. people come here to learn and kill time.

i do have an fcd and my friend has an fd fuel pump that he may sell to me.

i put my profec spec b in last night and set it to 10psi and, at WOT, my a/f gauge still read rich, but ill get 720cc secondaries, rtek 1.7, and fd fp for now.

thanks for the help guys