Rb20 Injectors

[rb20detsilvia]

Ive looked and cant seem to find what injectors will replace the stock ones i heard single overhead cam ka injectors will work does anyone know

[Joe]

the SOHC ka ones may "work" but dont flow NEARLY enough fuel for a RB.

what are you trying to do? replace a stock one? upgrade?

[rb20detsilvia]

Just Replace Stock Ones

[Carl H]

stock rb20 injectors are 270cc as are sohc ka injectors.

[Joe]

stock rb20 injectors are 270cc as are sohc ka injectors.

nooooi thought they were smaller than that...you sure?

and thats another reason the RB20 sucks just kidding all you rb20 fanatics.

[rb20detsilvia]

So Does Anyone Know For Sure I Dont Want To Order The Wrong ones

[Carl H]

http://www.sdsefi.com/injectors.htmyou will be fine using sohc injectors, ive still got my rb20 stockers if you want which were in good condition when i pulled them out.

[rb20detsilvia]

That Says 260cc So Is The SOHC Motor 270cc

[themadscientist]

RB20 injectors are 260, not 270. You might want to swing by the CA forum and see if any of the mongrol horde has some "too small" CA18 OE injectors laying around. They are top feed 370s, too small with only four but a nice upgrade in a half dozen. They are low impedance though so be sure to get a dropping resistor from a VG30 turbo or another donor.

[rb20detsilvia]

I thought if u go with a bigger injector than u have to upgrade the ecu or get a power fc

[themadscientist]

you will need some way to fine tune the fuel curve to work with bigger injectors yes, an SAFC is adequate. It is not ideal but can get the job done. An E-manage would be awesome. You can plug in the new ijector size and the unit will interpolate the whole map automatically for the new size so you just need to spend the time richening up the low spots instead of cleaning up the whole map.