PFC also, with datalogit, LC1 & 550/1680cc inj. oddly enough even with my stock primaries i had to use negative lag to get them to idle @ 13.5 afr

 

wow crazy. how much power you going for cause youll need 850's to break 600hp. the 550 injectors will power out around 550hp

 

i'm just going for 400-450, if i ever decide to go higher i have the 850's laying around

 

so your good with the ones you have now then!

 

yeah and if i go for more then 450 i might go with meth injection which would require less fuel from the injectors since the meth would replace a large portion of that fuel.

 

A Bit Of Advice. S4 87-88 Rotors Are Alot Stronger Than 93 Rotors. You Should Change Them While You Can! Just My .02 Cents

 

I'm not worried about the rotors. They can handle it. Its usually the apex seals that go. Never heard anyone have issues with the rotor. My engine was just build anyway so thats too much trouble to go through.

 

Any links where we can read more about this??

Thanks in advance!!

 

I'll have to invest in a twin power soon so.

I have 550/1600 running with an apexi pfc in mine.Was gonna run 850/1600 but again was afraid of the whole idling situation and was told by my tuner to leave it 550 as the idling would cause trouble so I have a brand new rail and injectors just looking at me asking why they aren't in the fd?? .I'm in the bedding in stage at the moment so not too concerned about it but would like to make as close to 500hp as possible as a street car with a street port and the usual single turbo mods!Darkphantom and dudeownsanrx7 seem to have the same setup as I have and i'm delighted to have gotten some new info regards our setup.Could you post up some pics of your t-78 setup guys?

 

as far as your quote tailwhipper if he cant tune/idle the car he wont recommend you putting 850cc injectors. Unless you have another guy there that can tune the car?




JUST ASK AROUND. almost all of the guys with big hp #'s run s4 87-88 rotors. there a little heavier but they have more meat on them. It happened to mines. Ill take a picture for you to see what happened. but just imagined on the top of the side where the sparkplugs hit the rotor jut above it theres another dent in the rotor!


were replacing mines as they speak!

 

I hope you mean 10mm spark plug wires and not 10 gauge...

 

i noticed in the koyo radiator i have that the fans are not electric, is it possible to replace the fans with electric ones but still use the original radiator