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What size injectors are in my 13b-re?

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Old Mar 6, 2002 | 10:09 PM
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What size injectors are in my 13b-re?

Got to thinking, wonder what size they are today. I know the FD's have 550 primary and 850 secondary but what are mine?? The FD has 255hp while the cosmo had 230hp, think they would go to a smaller injector?

Also do the FD injectors look like these in the pic, my primarys look to be side fed injectors.
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Old Mar 6, 2002 | 10:11 PM
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One more question, What is that sensor or switch for on the left side of the primary rail?? Thinking it must be some sort of pressure switch or a temperature sensor.
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Old Mar 7, 2002 | 02:45 PM
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From: https://www2.mazda.com/en/100th/
it's suppoed to be 550cc all the way around. the other sensor is the fuel thermosensor they use it for better hot starting

mike
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Old Mar 7, 2002 | 03:39 PM
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Primaries are 550cc (I am still using them in mine) and the secondaries are 850cc. I have replaced these with 1650cc Bosch injectors. Cosmo engines have side feed injectors. Much painful to replace the injectors because of this

The green plug I think is for temperature, not 100% because mine has always had a custom fuel rail.
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Old Mar 7, 2002 | 11:27 PM
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FD have 850cc injectors secondary? I thought all turbo 13B's (in the US anyway) had 550cc injectors all 'round. Live 'n' learn!
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Old Mar 8, 2002 | 06:09 PM
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Originally posted by AJC13B
Primaries are 550cc (I am still using them in mine) and the secondaries are 850cc. I have replaced these with 1650cc Bosch injectors. Cosmo engines have side feed injectors. Much painful to replace the injectors because of this

The green plug I think is for temperature, not 100% because mine has always had a custom fuel rail.
Do you have new rails for both the primary and secondary? I'm assuming they are custom made??
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Old Mar 8, 2002 | 09:23 PM
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Only the secondary rail is custom. I still have the factory 550cc ones down the bottom for that baby smooth idle
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Old Mar 8, 2002 | 09:35 PM
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From: https://www2.mazda.com/en/100th/
www.k2rd.com has the measurements to make both fuel rails

mike
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