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View Full Version : Twin Turbo RX7 FD3S 550cc/850cc sidefeed injectors

Hawaiian240
04-19-2008, 09:29 AM
I got a guy with 2 sets of the primary(550cc) and secondary(850cc) injectors for sale here in Charleston. So are the FD3S Rx7 sidefeed injectors a drop in install into the KA24DE and SR20DET OEM fuel rails? If not, what do i need to do in order to make it work? All i could find is that you need a spacer, but no specifics.

I saw in the injector thread that they are options. I think the plugs are a different shape, but they look like they fit. I searched and found a thread where a guy was going to use them, but ended selling the injectors due to going to a different setup.
s14freak93901
04-19-2008, 01:29 PM
try to do some research on rx7club.com. maybe something on there. i'll check for you.
McRussellPants
04-19-2008, 01:43 PM
Sard/Touge Factory will have what you need.
626 FC3S
04-19-2008, 01:48 PM
try to do some research on rx7club.com. maybe something on there. i'll check for you.


lol good luck getting any info outta those fags... the only thing they will tell you is SEARCH YOU No0b. Rx7club blows thats y im on here..there are alot of fc guys on here including myself but i havent heard of them being a direct drop in for ka and sr rails so u might had to fab sumthing and also put resistors on the injectors.
626 FC3S
04-19-2008, 01:52 PM
just talked to one of my friends and he said that the fd injectors are either shorter or longer so your kinda fucked..you getta get Nissan injectors. so there u have it DONT WASTEE YOUR MONEY
Hawaiian240
04-19-2008, 02:11 PM
ok, thanks guys.
McRussellPants
04-24-2008, 06:47 PM
just talked to one of my friends and he said that the fd injectors are either shorter or longer so your kinda fucked..you getta get Nissan injectors. so there u have it DONT WASTEE YOUR MONEY

they're a smaller diameter and have a different plug

hence why you buy the spacers and new injector pigtails from Sard.

so there u have it DON'T POST RANDOM SHIT.
Hawaiian240
04-28-2008, 08:08 PM
they're a smaller diameter and have a different plug

hence why you buy the spacers and new injector pigtails from Sard......

I just got an email back from Dennis Wu at Kure Motorsports saying the collars run $15.00 each for the 850cc RX7 secondary injectors and $20.00 each for the 550cc primary injectors.

Ordered a set for the 850cc injectors as well, so we'll see if they fit when I get the injectors. Got them for $100.00 (4 injectors) over on rx7club.com.

If it does work out, its a cheap upgrade!! $160.00 for 850cc injectors in the OEM fuel rail!!