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-   -   13B-RE in a 3rd gen....what needs to be done? (https://www.rx7club.com/3rd-generation-specific-1993-2002-16/13b-re-3rd-gen-what-needs-done-1019193/)

allrotor93 11-30-12 06:15 PM

13B-RE in a 3rd gen....what needs to be done?
 
What needs to be done for this swap? What is different besides the port?

killahrx7 11-30-12 06:28 PM

change the rear plate and front cover, i think lol i've never done it but thinking off the top of my 2 cents those are the differences i can think about

killahrx7 11-30-12 06:35 PM

oh forgot, oil pan and mounts

BLACK MAMBA 11-30-12 07:00 PM

And do a large street port to rear Rew plate to match the Cosmo port,

I had to cut 1/4 inch of my poly engine mount to be able to lower the engine due to clearance, couldn't close the hood since the RE intake manifold is taller than the REW

allrotor93 11-30-12 07:01 PM

Yeah...gonna just sell it as a core. Not worth the hassle lol

cptpain 12-01-12 09:43 PM

Probably not, but the Intake ports are A LOT bigger.

Using the irons is the real benefit to the RE. Paired with the larger exhaust ports of the REW.

Wish I had the room to build a new motor... I've been meaning to do a build with RE irons and REW housings.

seandizzie 12-02-12 12:34 AM


Originally Posted by allrotor93 (Post 11302460)
What needs to be done for this swap? What is different besides the port?

Is this some sort of joke to advertise selling the core in the 3rd gen fourm?

No need to swap rear Iron... It will bolt up to a Manul tranny.

Install FD throttle body, Its 2ndary plates are 5mm larger.

Swap front cover, drill and tap 2 holes for the front cover that don't exist on the RE but are needed to keep the REW front cover from leaking.

The studs for the water pump are different lenghts, swap for fd

Swap pan, drill/tap motormounts.

The RE intake runners are larger and way the port flows into the chamber in better.

The exhaust port is not any larger on the RE compared to the REW, its the sleeve, which needs to be removed and swaped for fd sleeves.

I have a RE in my FD. PM me if the manifold comes with it i might buy it.

allrotor93 12-02-12 06:28 AM

Doesn't sound too bad but I sold the intake lol





Originally Posted by seandizzie (Post 11303753)
Is this some sort of joke to advertise selling the core in the 3rd gen fourm?

No need to swap rear Iron... It will bolt up to a Manul tranny.

Install FD throttle body, Its 2ndary plates are 5mm larger.

Swap front cover, drill and tap 2 holes for the front cover that don't exist on the RE but are needed to keep the REW front cover from leaking.

The studs for the water pump are different lenghts, swap for fd

Swap pan, drill/tap motormounts.

The RE intake runners are larger and way the port flows into the chamber in better.

The exhaust port is not any larger on the RE compared to the REW, its the sleeve, which needs to be removed and swaped for fd sleeves.

I have a RE in my FD. PM me if the manifold comes with it i might buy it.


RENESISFD 12-02-12 10:54 AM


Originally Posted by seandizzie (Post 11303753)
Is this some sort of joke to advertise selling the core in the 3rd gen fourm?

No need to swap rear Iron... It will bolt up to a Manul tranny.

Install FD throttle body, Its 2ndary plates are 5mm larger.

Swap front cover, drill and tap 2 holes for the front cover that don't exist on the RE but are needed to keep the REW front cover from leaking.

The studs for the water pump are different lenghts, swap for fd

Swap pan, drill/tap motormounts.

The RE intake runners are larger and way the port flows into the chamber in better.

The exhaust port is not any larger on the RE compared to the REW, its the sleeve, which needs to be removed and swaped for fd sleeves.

I have a RE in my FD. PM me if the manifold comes with it i might buy it.

That is not the issue, There are no mounts for the rear motor mounts in the FD on a RE engine, unless it is the last year they were made. All of the other ones need the rear iron changed to allow for the rear engine mounting in a FD.

seandizzie 12-02-12 09:12 PM


Originally Posted by RENESISFD (Post 11304027)
That is not the issue, There are no mounts for the rear motor mounts in the FD on a RE engine, unless it is the last year they were made. All of the other ones need the rear iron changed to allow for the rear engine mounting in a FD.

You drill and tap the holes for the mount. I think you missed what I wrote. "Swap pan, drill/tap motormounts"

seandizzie 12-02-12 09:24 PM

opps double post

Brianben 01-14-13 06:58 PM

Ok here's my problem, maybe you guys can help me out, I have a s4 rx7 with a 13b re motor in it, it recently blew so I decided to go with an 13b rew motor, now would the coil wiring be different on it, I looked online for people doing the 13b re swap in an fd, did they have to wire the trailing and lead differently? Idk I'm just confused lol, I hope this makes since to someone reading it!

silverTRD 01-14-13 07:56 PM


Originally Posted by cptpain (Post 11303629)
Probably not, but the Intake ports are A LOT bigger.

Using the irons is the real benefit to the RE. Paired with the larger exhaust ports of the REW.

Wish I had the room to build a new motor... I've been meaning to do a build with RE irons and REW housings.

are there examples of a motor built like this? im sure it would flow more air, at lest in theory...but does it have a better powerband? higher peak hp? just curious of the advantages. thanks

FD3S_wanted 01-14-13 09:59 PM


Originally Posted by Brianben (Post 11344987)
Ok here's my problem, maybe you guys can help me out, I have a s4 rx7 with a 13b re motor in it, it recently blew so I decided to go with an 13b rew motor, now would the coil wiring be different on it, I looked online for people doing the 13b re swap in an fd, did they have to wire the trailing and lead differently? Idk I'm just confused lol, I hope this makes since to someone reading it!

Why don't you used the coils that you had with the 13B-RE? Are you running the FD ECU or a standalone?

diabolical1 01-15-13 02:54 AM


Originally Posted by FD3S_wanted (Post 11345143)
Are you running the FD ECU or a standalone?

this ....

Brianben 01-15-13 10:12 AM


Originally Posted by FD3S_wanted (Post 11345143)
Why don't you used the coils that you had with the 13B-RE? Are you running the FD ECU or a standalone?

Cuz they are fc coils, they are the ones I used, and since the fd ecu is shit.. I had to buy a power fc for the fd3s

diabolical1 01-15-13 08:29 PM

if you already had the Power FC set up to run the Gen II CAS and coils, why not just change the front cover and timing gear on the REW?

Brianben 01-16-13 10:19 AM


Originally Posted by diabolical1 (Post 11346179)
if you already had the Power FC set up to run the Gen II CAS and coils, why not just change the front cover and timing gear on the REW?

I had a microtech and I sold it, so I could get the fd motor and got a really good deal on the power fc and could I still keep the fd harness if I were to do that?


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