i just got a 1986 RX-7. im a bit confused as to which model it is exactly due to a lack of badging. It is again a 1986 FCs4, has 5 lug stock, no sunroof, and big brakes, also there is a connector right behind the shifter that i dont know what it is for. the seats seem to have more lumbar support like the TII models but its an NA motor and no hood scoop. i was just wondering if anyone knew what model i am starting with or how i could find out. Thanks in advance from the newbie to the rotarys.

 

Sport model
or
it could be a hodgepodge of Fc's

does it have a tilt steering column?
storage bins behind the seats?

did you look here?:
https://www.rx7club.com/2nd-generation-specific-1986-1992-17/specifications-what-did-2nd-generation-rx-7-come-w-options-standard-features-642372/

 

had the same problem when i bought mine earlier this month, pretty sure its an 88.. and almost positive its a GTU