FC3sinfiniIII

I have a S5 NA engine brigde ported. When i open the throtle to a 100% it feels like is not getting enough have. I have a 255lph walbro sitting in my room and i was toll to put 5.0 mustang injectors help. I will to know if this is true, my engine has not modification beside this. What ingition system should i get? how big are the stock injector and the mustang wherther is 19lbs or 24lbs? do i need a safc or is there a equivalent?

Jager

iTrader: (10)

Put in a 255, FPR.

Stock RX-7 injectors are 460cc for the NA's.

Ignition is up to debate, I can't get RETed's site up, so you'll ahve to search.

Safc? You'll want a full standalone with a bridgeport.

cloudzero

iTrader: (1)

and as far as the injectors go i belive yours would already be close to like 40 - 44 lbs injectors so going to a 19 or 24 from a mustang would really just make your motor blow up

Aaron Cake

iTrader: (1)

Piston injectors are very small compared to those used on the rotary. You're probably running lean with those ports. Run the car with a wideband to make sure (which you should be doing anyway). If lean, then upgrade the secondaries to 550CC or 680CC and retest. You will need something to control them like the S-AFC mentioned above however as also mentioned the fuel and timing requirements of a bridgeport really do require a standalone...

FC3sinfiniIII

ok cool, what will be the best stand alone unit? What about the walbro 255lph will it work?

SureShot

<off topic>
Cloudzero - I think your avatar just farted..
</off topic>

You got the pump, so install it.
I think the stang injectors are smaller than what you have now.
You can always get some 550's for the secondaries.

Aaron Cake

iTrader: (1)

There is no "best" standalone. But for your application I would recommend the Haltech. It has plenty of resolution for both ignition and fuel tables, and has a lot of support.