hey guys went to the dyno yesterday everything was going good until we tried to
turn up the boost. i was hitting fuel cut at the top of the rpm range 6000 above 15lbs. i have full stage 2
20G, fpr returnline safc 255pump meth injection fully built with cams and every thing no reason to hit a cut..... any opinons help thanksssss

ps 682 injectors at +7% and 57lbs of fuel pressure

335hp 340 torque at 15lbs 11.2 afr safe side lol

 

try 50psi of pressure. +7% duty cycle on the injectors?

 

new problem..... car died on me today when i turn the fuel pump on i get my 57 lbs then it drops to 0 quick any suggestion???

 

either your fuel pump is shot or there's a leak or a hose disconnected in the return line. could also be that stupid blue ring that goes around the bottom of the pump in the tank that loves to fall off.

check your lines completly and make sure that everything is connected and there's no leaks. if you still have no pressure drop the tank and make sure that everything is still where it needs to be on the pump. if all else fails, replace the pump. luckily they're cheap.

 

yea thats my project after vaca i laeve tomorow..... i think im gonna put a new pump in any way its about a year ant a half old if i have the tank down im just gonna do it

 

ps where does the blue ring go.. its been a while since i had the tank down?? thanks .... and some people are telling me its bad to run + on the safc for our cars why is that??

 

safc can't add fuel, it can only take it away. so running plus does nothing really, and can screw with the map readings, hence why it's bad. might as well zero it out, you're doing the same thing basically and it's safer. the only thing that can add fuel is a stand alone, none of the piggy backs can do it.

the blue ring goes on the bottom of the pump inside the canister. damn things are always falling off if they're not perfectly in place.

 

you think it would come off after a year or do u think the pump just went bad... i dont have the re wire witch i will be doing when i take it down
what is a good standalone aem???? any others out there?

 

In my experience can't go wrong with the Apexi AFC Neo. Looks good and has 16 +- adjustments across the board.
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04 Electric blue SRT-4; DCR 2.6L stroker, DCR pro-series head, DCR twin turbo E01's, 5 layer HG, MSD ignition, AFC-Neo, 750cc injecter, AGP mounts, Stage 4 clutchmaster, DCR fuel pump with bottleneck delete, 3.5" straight from turbo to the great outdoors. 625hp on race gas. 505hp on 93 octane. 10's all day long baby!!! All throttle no bottle.

 

yea i have a neo in the + right now but people say its bad to do... i think its in the +because of the fuel problems im having. 682's ~57lbs of fuel with 255 pump?? idn