Hey everyone I have an '87 RX-7 N/A and I am considering putting the TII swap in but I had a few questions that I needed answered before I move forward with the idea.

1. Will I need to change the fuel pump out with a higher PSI fuel pump?
2. Will my factory radiator work with the new Motor?
3. Is the factory oil cooler compatible with the TII motor?
4. Are the motor mounts and tranny mount the same?
5. How much of my factory wiring harness will have to be changed out?

If I can think of more I will add them.

 

Wrong section but.....

1. Will I need to change the fuel pump out with a higher PSI fuel pump? YES
2. Will my factory radiator work with the new Motor? YES
3. Is the factory oil cooler compatible with the TII motor? YES
4. Are the motor mounts and tranny mount the same? YES
5. How much of my factory wiring harness will have to be changed out? Change the harness or re-loom)

By the look of these questions you REALLY need to do a lot more research (check in the FAQ section in the 2nd gen technical area.

OR just type TII swap into N/A in the search tab and find the 1,000,000,000 threads that already exist on this topic...

 

The N/A wiring harness will work just fine. You must extend the TPS and BAC valve wiring, for sure. (I had to extend my alternator wires for other reasons.)


Check out these helpful links:

Rotary Resurrection: N/A to TII conversion

https://www.rx7club.com/2nd-gen-archive-72/my-na-tii-jdm-swap-635663/

https://www.rx7club.com/showthread.php?t=635663

https://www.rx7club.com/showthread.p...light=TII+swap


Also, look into wastegate porting.

Aaron Cake's: EXTREME S4 wastegate porting

FC3S Pro: Zenki (86-88) TII wastegate porting

 

Thank you very much that was helpful. Im sorry I posted in the wrong section. This was my first time actually using the forums since I signed up.