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Rx-7fetish
02-21-2010, 11:43 AM
Are there any 720cc injectors that i can plug into the stock harness and fuel rail of an s4 turbo? im wanting to go rtek but i want to go with the 1.7, ive got my whole intake off to replace vac lines and want to do it all at once. Yes i tried searching, but kept coming up with something about needing resistors.

Max777
02-21-2010, 03:37 PM
yeah, there are greddy low impedence 720cc injectors online.

I used some RC Engineering 750cc injectors myself, these are legit!

rx7 FC TII
02-21-2010, 04:41 PM
i have the 75lb from KG parts that are plug and play. i think that equals like 790cc i believe. or something close to that.

Rx-7fetish
02-22-2010, 08:36 AM
Sweet but just to be sure I read in one of the faqs on the other forum that they started using high impedance in 88 which is what year mine is just wanna make sure before I buy.

dawicka2
03-03-2010, 03:56 PM
You need high impedence for an 88 (at least mine is)... i think that it was in 87 that it could be either.

http://cgi.ebay.com/ebaymotors/RC-Fuel-Injectors-Mazda-RX-7-750cc-750-cc-RX7-1987-1988_W0QQcmdZViewItemQQhashZitem414cc959dbQQitemZ2 80461138395QQptZMotorsQ5fCarQ5fTruckQ5fPartsQ5fAcc essories is the link to the 750 rcs.

Dont know anything about them though.

john ny

RotaryDiagnostics
03-04-2010, 11:16 AM
I'm running the 750cc RC Engineering high-impedence injectors in the secondaries of my S5 Turbo car with no apparent problems.

junito1
03-28-2010, 03:58 PM
i Have baby blue/teal 720's with no problems also.

No sputter when secondaries kick on at 3,800.