sr20det has zero power, I need advice.

[wesismyhero]

So I recently got my project car running. When I got it it was a mess, half assed and with a bunch of random parts laying around. I frankensteined everything together and finally got it running. It will idle perfectly all day long at 900 rpm once it warms up. When I try to drive it down the road, it has zero power, barely enough to move when floored. In neutral it will rev to between 4500 and 5000. I have changed the MAF, o2 sensor, knock sensor, plugs (NGK BKR6E) set timing, checked voltage on tps, checked compression (165-175 on all), checked fuel pressure,basically everything but a new ecu. Does anyone have any ideas?
Mods to the car are
Freddy intake manifold
Sard fuel rail and 550cc injectors
Aem fuel pump
FMIC
Fujita intake
Isis turbo manifold and fuel pressure regulator
Chase bay's fuel lines
Brian Brower 264 cams
TRust 3 inch downpipe

[derass]

What ECU are you using? If it's not something that's been programmed for those larger injectors, that's likely the problem.

[wesismyhero]

Stock ecu. I was just trying to get it running first. I may switch to the stocks and see if it helps.

[KAT-PWR]

coolant temp sensor?

[wesismyhero]

It's not throwing any codes on the ecu.

[silviamang]

What do your plugs look like?

[wesismyhero]

Brownish black. Not wet and not really fuel smell. What I would consider normal.

[coupesallday!]

Is the clutch good? lol

[e1_griego]

You're running 550s on a stock ecu?

That doesn't work.

[wesismyhero]

New clutch.

[teh smithers]

Get your ECU flashed, or get a programmable one and get it tuned. The stock ECU/tune can't handle the fuel system upgrades.

[1988montecarloss]

You're running 550s on a stock ecu?

That doesn't work.

this.

the ecu thinks its firing 370cc injectors

[rwtf]

Stock ecu. I was just trying to get it running first. I may switch to the stocks and see if it helps.

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