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my setup

shawnschuldt

shawnschuldt

New member
should i really be getting 11 pounds of boost with the mods in my sig and im also seeing up to 96% injector duty cycle is this normal or should i look into my fuel system.

my car sometimes takes longer than most to build pressure to start the car, could this be the pump or a filter? i have the fuel filter already but it hasnt been put in yet.
 


How many miles on it? Filter ever been changed? Probably wouldn't hurt to say the least.

Some cars flow better than others...11psi isn't insane...my buddy had 13psi at the shift on a 3.4". Ported blower/TB/PEM's/3" DP...custom tune....etc.
 
its got 95k on it the filter is gunna be changed here soon when i get some ambition, just curious if its normal to see it at 96% injector duty and 18-19msec pulse width with just a regular old 3.4 setup.
 
I've seen people maxing out IPW's on 3.2" pulleys...and sometimes even 3.1"s...but not a 3.4"...dying pump or clogged filter might be a tall tale sign.

Then again, I don't tune. So I'm not sure.
 
i was maxing out my IPWs on a 3.4 when my tune was junk. it was running way too fat for what i had done.
 


i been trying to work on this kr but when i noticed the duty cycle being 96% my afr was at 11.2-11.3 . i have not checked my fuel pressure yet as i have to either go buy a guage or rent one im prolly gunna do that today.
 
i havent checked fuel pressure while driving as im not sure how im gunna see the guage i might have to setup a camera or something.

but fuel pressure key on engine off is 44psi and 40psi while running
 
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