Toahk

Anyone have a breakdown of what size injectors came with which rx7's?
Ie- I know some came with 460cc injectors, but which car/trim/model
Any info is appreciated, not sure if this is the right place for this post, but its the closest I could find.

RETed

US-Spec

1984-1985 GSL-SE - 680cc/min, ND top-feed, low-impedence, only two per engine

1986-1991 FC3S, non-turbo - 460cc/min, ND top-feed, both secondaries and primaries

1987-1991 FC3S, turbo - 550cc/min, ND top-feed, both secondaries and primaries

1993-1995 FD3S - 550cc/min, ND side-feed primaries, 850cc/min, ND side-feed secondaries


-Ted

Toahk

Cool thanks, thats what I was looking for. Gotta go junkyard hunting for some non turbo fc3s's. Need those injectors.

RotorJoe

I thought the 84-85 GSL-SE's had 720cc's???

diabolical1

iTrader: (3)

yes, far as i know some of the '85 SE's had 720's, but most SE's had 680 cc injectors.

RETed

No, those 720's are supposed from the Japan-only 12AT - turbo'd 12A.

No US-spec 1984-1985 GSL-SE runs 720's - please check the Mazda FSM.


-Ted

diabolical1

iTrader: (3)

i guess i may stand corrected ...

j9fd3s

iTrader: (3)

theres only 1 part # for the gsl-se injectors n304-13-250 and per the fsm they are 680cc

peejay

Locally we've noted that '84 GSL-SE injectors check out at 680cc/min and '85 GSL-SE injectors check out at 720cc/min, when flow tested. The FSM has been known to be incorrect, the right hand doesn't always know what the left hand is doing, especially when there are deadlines.

The 12AT had 800cc/min injectors.

RETed

You're right, fuel rail pressure has a lot to do with flow rates.
The numbers I reference to is the general consensus that most people agree upon as the correct flow rate.


-Ted