I put an adjustable FPR on the other day and set it at 39 with the vacuum off. Well sometimes when I hit the pedal it bogs a little and backfires in the passenger side header. My question is do I adjust the pressure to more PSI or less to get rid of this? Also does more pressure equal more fuel or visa versa?

 

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first thing you need to do is some reading on some info their are pages on this site and others to tell you test prciders for th EEE-V4 ALSO known as eeek-4 you can run test signals through the computer and tell you what fuel preaser is spose t be with in the limit of the fuel system now if you are pushing 320+ rwbh rear wheel break horse power which is alot i have alot done to my car let me list some of my little things

ok I HAVE A 1989 INTERCEPOIR it was a ex mich. state police car
Paint : Black saphire looks blue in sun but in dark looks black very cool paint
Motor: I have stock block with girdel a must have
mahl forged pistions, .30 over bore 9:5 :1 compresion
cam it is a fms e-303 cam gt 40 heads
molary sp? fuel preaser reglator big one
19 pound fms high flow injector" big key
a tuned 19 70mm and bbk 70 mm egr
trick flow track heat intake
bbk equal length tuned headers
bbk extractor x- pipe got ride of cat kinda miss them for tuning aids
warlock muflers mot peoplr dont know what they are ever one says borl or flowmaster ya right a good tuner know any stree pipe that can be open headers is best !_! Look at these pipes I too the caps off and put a silanoid to open my headers from with in my car very cool

power adder's i have a trick flow nitoris spay plate under my intake it is a wet system big plus you can use this system not only for power but also a more inportant side of the juice is cooling!_! now it is powre time

I have a ford 8psi super charger cheap and small but potant when tuned

ignition msd aloy street ditrib a 6al box with retard timeing control through a retad form msd

tack my little street stang run it on 89-92 oct tane want to play go get some 94-100 actane drop 2-3 degeree timeing
open headers and now you have one bad car 150 bump pluss a 8 psi super charger you figoure it out alot of cars are faster but at low 10s im pulling up ground on the street take your drag car to flordia!_!

no ofense to reader above but i just want you guys to read more and think about tunning it's not who has the bigst ***** all the time it us little guys with our hats back words saying hi i have ran a many z06 in my time 415 no juice you fiougr the rest my freinds 150 bummp by bye and can go all day lone tunning is key just ask some kid with a bad 4 cyl but we have 4 more i love theese cars

I also have a bad 1988 monte carlo ss{ gn} repper they stand no chance unless they are total drag cars

it has A 396 bored over .60 stroked .30 makes it ??????? 430?
10.5 comp square bore heads with tit v2.30 s big breathers
voodo cam .545/.572 231 int 241 exh.
edel brock duel quads pollished W fuel preaser reg. big plus
art car 700r-4 revers shft patren and fully manual valve body this is as close to drag on street as posibale
Im pushing 600-650 hp with 3:73 gears and still get 19 mph thats pretty good no power aders this one is going to berrets sone!_! big money car
total susp. it hotchis from front a arms to rear sway bars $2400 in sus. alone bee cool alumine shocks
three core griffin rad . with electrick fan
msd 7 al no controler yet msd plug wires and 4 prong platume plugs so i get total fire in comp chamb.
long tube caramic heads I will have to post some pic of it getting ready to redo pINT I MEAN ROTISSER PAINT FOR BARRETS

nedd some advice I may be able to help but hell maybe you can help me to right bro's we all know some little tricks peace all thanks for reading me jummble on peace bro's[ul][IMG][/IMG][ul][IMG][/IMG][ul][IMG][/IMG][ul]**** cant find any of my car i will take some pic and load them i know i have some [*] [*] [*]
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computer tuned at 100rpm intervals { this means my air fuel ratio is right on through my whole rpm range much more inpressive big smile's}

 

WOW, all that and I still dont think he answered your question, lol

try not to surf while snorting coke......................

I would play with it, sounds like your rich or maybe a plug is bad
or dirty or not gapped right, ect. ect.
check all you plug wires, make sure everything is firing right.

there is a self diagnostic/ reading codes thing you can make the computer do also, that will
have it step thru each cylinder turning them off and on and it will tell if any were not right.

there's a page somewhere on stangnet.com that walks you thru it.
sorry dont know the link

 

SPEEEEEED

 

thanks

I'll just mess with it a little and see what happens.

 

i have that same exact problem its the number 4 cylinder and it backfires sometimes and its runnin extremely rich and i dont know how to adjust the fp

 

when you set it at 39, was the car running or not?


how did you plug the VACUMM line thats sucking in air.

 

i agree with what r barn said....