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Need advice on very aggressive 13b

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Old 01-20-13, 05:46 PM
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FL Need advice on very aggressive 13b

I recently traded an rb car for a 13b car and need some info. I have looked up all these questions and have some experience so i have my own answers. Im asking simply because id like to verify im right or wrong and get a variety of opinions from the educated and the ones who arent as well.

Ill start with the engine mods..

13b bridge ported with ALS seals
550/1680cc's (should the 550's be upgraded to say, 800's?)
6266 precision divided .84 hot side (small IMO, will this do damage or just choke the turbo up on the top end)
50mm external
Straight piped to the tip 3'
FMIC with all 3' plumbing from outlet to down pipe
340lph aero fuel pump

Im currently not tuned but running a power fc with a commander and have the injector size inputed, i feel like this is a very unreliable way to run the motor and i think a dyno tune from an expert should be in motion. Unless i heard from members they have ran such an aggressive setup on the same FC/commander combo.

I appreciate the advice and negativity will be used constructively
Old 01-21-13, 10:03 AM
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The Power FC is regarded as one of the better and more common combos for highly modified cars, so you're fine with your management. However, you really need a full top-to-bottom tune with that kind of setup.
Old 01-21-13, 10:55 AM
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Your turbo is a bit small for the bridge port. That turbo would be a better match for street port. But it will work and its a nice turbo. its a t4 right?

Your injector setup is fine. 550/1680's is very common.

And yes your engine management is one of the more common ones on rx7's also. You have all you need.

Things you need to find out. Is it a full bridge port or a half bridge port engine.
Old 01-21-13, 04:21 PM
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Awesome thats exactly what i wanted to hear.

The turbo was actually for a 2jz i have but ended up getting the car without one. Its a t4 divided and the motor came with a twinscroll mani

Its a half bridge port
Old 01-22-13, 04:10 PM
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You could spend some time researching for bigger turbine housings. SOmething 1.00< ar.
I believe your precision turbo should be an easy swap of the turbine housing.
Either way you need to make sure you have a reputable rotary tuner do the mapping for the ecu.
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