I don't want to step on Aaron's toes by posting here, but...
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Originally Posted by DangerousType
The turbo im gonna be using is a ct20b. So the question is do i have to upgrade my fuel system to run a ct20b?
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No.
Quote:
Originally Posted by DangerousType
ive already manage to pick up and install the walbro 255 but i was recommended that since the head will flow more air that i need bigger injectors...
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You need a bigger rail more than injectors. The stock rail cannot flow well enough to compensate for a bigger fuel pump. Injectors closest to the t-belt will run more pressure and gradually go down as you move down the rail closer to the distributor where Injector 1 should be close to stock pressure.
Quote:
Originally Posted by DangerousType
( but even with bigger injectors, would be useless without an ems right?).
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Could go rom tune. But 550's aren't needed with a 20B. You are knock limited more than fuel limited at 16-17psi and 270-280 whp. Even if you have 550's, you're still knock limited to ~17-18psi. So either way, if you want more power you're going to need race gas. And since race gas is very tolerant to rather high AFR's, you can run the 440's pretty lean.
Quote:
Originally Posted by DangerousType
Do i need to upgrade my fuel system to run a full port and polish head?
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No.