ok well ive tried to find out the injector size of my injectors, they were on the car when i got it, and i forgot what the guy said (it was like 2 year ago), but i want to sell them and i dont know what size they are. they are maroon/purple tops. you cant read a part number really but the best i can make out is the last 3 digits are 552.

 

They look like the RX-7 purple tops.. If so, they are 550cc..

 

they gotta be somethin bigger than stock cause the car had a good a/f with em at 20psi

 

those are crankwalk 1000cc.

 

Ya rx-7 is what it looks like the me and I am running 21 psi on my pte 550's at around 10 a/f, 550's are no slouches I know of a guy making 400+ hp on them with a green set-up. not recommended but capable...

 

stock are 450cc

 

also, nissan makes a 650cc that are purple tops, if you google it you might find a pic or 2..

 

check it out, i searched for 550cc rx7, and this came up

 

I would guess that you have the same injectors then...

 

need better camera


but do look like rx7 injectors. 550s were capable for me at 20lbs.