Redhead FC FC project

[Rx-7fetish]

Well, i figured i'd start a project thread in the right place. I picked up a 87 N/A FC last spring for a trifling $300. Its a South Carolina car and is virtually rust free. Aside from some major and minor issues, the car seems to be in OK shape. I have the typical leaking sunroof along with a semi-dead motor. This is also my first rotary car/rebuild

The motor will start right up and run, but its eating oil and coolant like a kid eating PEZ. 1/2 a quart of oil in 30 minutes and its a mosquito fogger with the coolant its burning.

Interior is a little rough, cracked vents, a little dirty and the shifter boots need replaced. It also has a dent/scrape on the quarter panel/door but that is minor.

The plan at the moment is to secure a used S5 N/A motor and do a hybrid build consisting of:
S5 rotors/c-weights
S5 Intake
S4 front cover (to retain mechanical MOP)
Ported 6-port irons w/ pineapple inserts
S5 trans
EGR Blockoff

Not sure on the rebuild kit yet, possibly going to go atkins with cryo treated apex, solid corner and side seals.

Second phase after getting the rebuild running and broken in on stock S4 electronics will most likely be a Megasquirt ECU. Not sure if this is going to be the PnP MS (based on the MS-II Extra Microsquirt) or the MS-III (if its out of beta by the time im done)

I have some questions regarding ideas i have for the build.
1) is bridgeporting the aux ports worth the time?
2) What RPM should i limit the motor to after the porting and rotor swap?
3) Is there anything else that can be done to the motor that would be beneficial in a pre-mild turbo build? (retaining S5 rotors on said turbo build)
4) with a header and cat-back exhaust, is there enough pressure to actuate the 5th and 6th ports or do i have to run an electrical or air pump based alternate method?
5) Is there an LSD that fits the N/A rear end? or is the LSD limited to the T-II??

In addition, there are some parts that i will be in the market for used or new (will update as needed )
1) pineapple 6-port porting template
2) header and cat-back exhaust for an N/A 6-port motor
3) Flywheel stop


Advice, input and suggestions welcome and encouraged

[Shadow24v]

Well, i figured i'd start a project thread in the right place. I picked up a 87 N/A FC last spring for a trifling $300. Its a South Carolina car and is virtually rust free. Aside from some major and minor issues, the car seems to be in OK shape. I have the typical leaking sunroof along with a semi-dead motor. This is also my first rotary car/rebuild

The motor will start right up and run, but its eating oil and coolant like a kid eating PEZ. 1/2 a quart of oil in 30 minutes and its a mosquito fogger with the coolant its burning.

Interior is a little rough, cracked vents, a little dirty and the shifter boots need replaced. It also has a dent/scrape on the quarter panel/door but that is minor.

The plan at the moment is to secure a used S5 N/A motor and do a hybrid build consisting of:
S5 rotors/c-weights
S5 Intake
S4 front cover (to retain mechanical MOP)
Ported 6-port irons w/ pineapple inserts
S5 trans
EGR Blockoff

Not sure on the rebuild kit yet, possibly going to go atkins with cryo treated apex, solid corner and side seals.

Second phase after getting the rebuild running and broken in on stock S4 electronics will most likely be a Megasquirt ECU. Not sure if this is going to be the PnP MS (based on the MS-II Extra Microsquirt) or the MS-III (if its out of beta by the time im done)

I have some questions regarding ideas i have for the build.
1) is bridgeporting the aux ports worth the time?
2) What RPM should i limit the motor to after the porting and rotor swap?
3) Is there anything else that can be done to the motor that would be beneficial in a pre-mild turbo build? (retaining S5 rotors on said turbo build)
4) with a header and cat-back exhaust, is there enough pressure to actuate the 5th and 6th ports or do i have to run an electrical or air pump based alternate method?
5) Is there an LSD that fits the N/A rear end? or is the LSD limited to the T-II??

In addition, there are some parts that i will be in the market for used or new (will update as needed )
1) pineapple 6-port porting template
2) header and cat-back exhaust for an N/A 6-port motor
3) Flywheel stop


Advice, input and suggestions welcome and encouraged