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rebuilt bridgeport engine swap

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Old 07-29-07, 07:38 AM
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rebuilt bridgeport engine swap

Hello guys, first off i just want to say that i am fairly new to the whole rotary thing so please be kind. so a little history. i sold my accord for an rx7 behind my parents backs. =]. i bought an 89 gtu for 1300. the exterior just needs paint and the interior is there, just really needs to be cleaned and a few pieces missing. the engine was strong but now i am going to need a rebuild. i have deceided on a half bridgeport. my question is how hard will it be to buy a shell and basically swap in everything needed to make that shell run. ive got a few mechanically smart friends with their own rx7s to help me but i just want to know if there is a manual out there somewhere or if there is a website detailing me on how to go about doing this.


thank you
Old 07-29-07, 09:37 AM
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Originally Posted by stupidkid0304
Hello guys, first off i just want to say that i am fairly new to the whole rotary thing so please be kind. so a little history. i sold my accord for an rx7 behind my parents backs. =]. i bought an 89 gtu for 1300. the exterior just needs paint and the interior is there, just really needs to be cleaned and a few pieces missing. the engine was strong but now i am going to need a rebuild. i have deceided on a half bridgeport. my question is how hard will it be to buy a shell and basically swap in everything needed to make that shell run. ive got a few mechanically smart friends with their own rx7s to help me but i just want to know if there is a manual out there somewhere or if there is a website detailing me on how to go about doing this.


thank you
You'd be better off just fixing up the 7 you're in now. Also from what I've read you'll not get anything from a half-bridge port except for the messed up idle. Look into getting a street port, might be better for you. If you really want to know what you're looking at getting yourself in for look in the Archives project section under my name: the cerberus project. It is basically a frame up restoration of an RX7 that didn't have a motor. so that is basically what you'll be doing when you go swapping into a shell.
Old 07-29-07, 10:06 AM
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thanks ill be looking into that
Old 07-29-07, 10:34 AM
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Engine, Not Motor

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In order to run a half-bridge, you will need a full standalone EFI system and a new intake manifold to eliminate the VDI (which doesn't play well with high overlap ports).

It's a LOT of work for a first project.

Also from what I've read you'll not get anything from a half-bridge port except for the messed up idle
Not true at all. You may be speaking about the aux bridge, in which case it's partly true depending on how it's implemented.
Old 07-29-07, 12:25 PM
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Originally Posted by Aaron Cake
In order to run a half-bridge, you will need a full standalone EFI system and a new intake manifold to eliminate the VDI (which doesn't play well with high overlap ports).

It's a LOT of work for a first project.



Not true at all. You may be speaking about the aux bridge, in which case it's partly true depending on how it's implemented.
I've been overruled and corrected for the greater good! Hurrah! Listen to Aaron, he knows his stuff.
Old 07-29-07, 01:37 PM
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i was thinking of puttin in a haltech. ive been told that that will solve all my problems concerning what aaron was talking about. i dont know. i know it will be a challenge but it is going to be my first project on my fc and i cant wait to start it. (intake and exhaust was done by previous owner). thanks for the help any more advice would be much appreciated.
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