Other 1uzfe injector options

dweinhart

Member
So far the only small injector upgrade options I see posted are for 295cc mk3 supra and 315cc 88-92 supra 7mge.I don't want to use 315cc because ECU can't easily compensate, and the 295cc require resistors because they are low impedence,
From my research the Denso 23250-46050 (bluetop 2jzge) are top feed, high impedence and about 308cc which "may" work...Can anyone verify this?
Alternately there is a 3sge 295cc top feed for 1st gen but I can't find part number nor can I verify fitment...
 

Zuffen

Super Moderator
Staff member
Pretty sure RX7 440cc injectors are a plug and play fit but the ECU won't know they are there.

If running aftermarket ECU no problem.

I used them on my supercharged engine.
 

dweinhart

Member
I know the RX7s will work with aftermarket ECU to lean them out...I am looking for injectors for mild boost that are small enough to run with ecu but big enough to run with FMU to allow for 350-375 whp. Stockers will be at 100% duty cycle or go lean at those levels....
 

dweinhart

Member
Edit: I have verified that these 3rzfe injectors will fit in the same 1uzfe plugs and that ohm rating is only .1 ohm difference with a flow rate of 300cc which is optimal for a low boost setup. I just need to find one to compare to 1 uzfe to verify that it fits in the rail...If anyone wants to chime in?
 

dweinhart

Member
If they work, this would allow the use of a slight larger injector that could still be used with an FMU without worrying about running too rich at idle or going to 100% duty cycle on stock injectors.Perfect solution for budget boost....
 
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