im lost u were running 55 fp with a vac line ? and 26 psi sooo 81 fp ? and only pulling 13%? seems very low for that much fuel
yes 55 fp thats why i am thinking my gauge is broken also. seems very low but i also found that i had a blown exhaust manifold gasket. so i may have been good just a false af reading.
hmm i think i was confused. i was running 26psi on my 3582r, 750cc, 255, fuel system bottle neck fix, -6 to the rail, return line, boomba rail. i was pulling 13% on the safc and my fuel pressure was at 55psi with a check valve. i might try and replace my gauge also. i am assuming 13% on a stage 0 is not good?
Do have a lean condition? Is the check valve install in the right direction. You want installed so that the FPR does'nt see vacuum and only see's boost.
Where did you buy your injectors? Some companys list there injectors as 750cc when the are really 650cc. Also base fuel pressure with the check valve should be around 40-44 psi. With check valve in place you should be able to pull the vacuum line off of the fpr nipple with the car running and the fuel pressure should stay the same. On high power cars I always recomend an electronic incar fuel pressure gauge, so the you can monitor everything.
on a stg 0 or 1 pcm you should be at -15% to -17%. 13% is the min. to keep fuel cut out of the picture. Shoot for 11.2 to 1 afr on pump gas.
on race gas you can turn up the fuel pressure and goto -20% to -24% for alittle more timming.
hmm i think i was confused. i was running 26psi on my 3582r, 750cc, 255, fuel system bottle neck fix, -6 to the rail, return line, boomba rail. i was pulling 13% on the safc and my fuel pressure was at 55psi with a check valve. i might try and replace my gauge also. i am assuming 13% on a stage 0 is not good?
Do have a lean condition? Is the check valve install in the right direction. You want installed so that the FPR does'nt see vacuum and only see's boost.
Where did you buy your injectors? Some companys list there injectors as 750cc when the are really 650cc. Also base fuel pressure with the check valve should be around 40-44 psi. With check valve in place you should be able to pull the vacuum line off of the fpr nipple with the car running and the fuel pressure should stay the same. On high power cars I always recomend an electronic incar fuel pressure gauge, so the you can monitor everything.
on a stg 0 or 1 pcm you should be at -15% to -17%. 13% is the min. to keep fuel cut out of the picture. Shoot for 11.2 to 1 afr on pump gas.
on race gas you can turn up the fuel pressure and goto -20% to -24% for alittle more timming.
Hope this helps
Nemo out..
i eliminated the checkvalve. i am running the line from the turbo nipple to the fpr. i am running rc 750's from agp. so i will try and redo some of te settings and get a new fuel gauge. even at 21 psi with my fuel pressure at 50 i am only pulling 19% up top. maby i have a bad gauge? or a bad pump? i am going to check for boost leaks again today also.
im surprised ur only pulling that much, wen i used to tune with the vac source on 20 psi i was puling 25% + now without it im 15-19 %
yeah i am wondering what is going on also. i figured with 750's return line bottle neck fix and -6 to the fuel rail i would have to run like 40 or lower on my fp. oh well i guess it will get fixed when i get back from iraq.
im surprised ur only pulling that much, wen i used to tune with the vac source on 20 psi i was puling 25% + now without it im 15-19 %
yeah i am wondering what is going on also. i figured with 750's return line bottle neck fix and -6 to the fuel rail i would have to run like 40 or lower on my fp. oh well i guess it will get fixed when i get back from iraq.
be carefull man watch your ass out there. my cousin is headed aswell.
im surprised ur only pulling that much, wen i used to tune with the vac source on 20 psi i was puling 25% + now without it im 15-19 %
yeah i am wondering what is going on also. i figured with 750's return line bottle neck fix and -6 to the fuel rail i would have to run like 40 or lower on my fp. oh well i guess it will get fixed when i get back from iraq.
be carefull man watch your ass out there. my cousin is headed aswell.
you have to remember stg 2 is 3 bar map.. 18 psi is like 3.8ish volts..
stg0 and 1 are 2.25 bar.. 12 psi is about 4.05 i believe i 'll have to look up my notes..
hmm so if i just bought a stage 2 3bar MAP and TIP sensor (which i dont think i need the TIP cause its not hooked up anyways) it will fix the sputtering and stuff? im stage 0 on stock turbo with retun line and walboro,or does that pulling at least 4% across the board actually work for the stock sensors?
__________________
Netou FTL
Quote: Originally Posted by Pizza Boy
MESSAGE TO CANADIANS:
We are sorry to offend you with our retarded lap dog name lilguada, he does not stand for our country nor speaks for us, if you would like we would be more then willing to hand him over to you free of charge, tho i don't think you would want to suffer anymore then you have in this thread.
no, the sputtering in my experience is caused by a large range in change between the long term fuel trims between cells
Hmmm i dunno on an '05 i guess ive GOT to have the stage one otherwise im gonna get the overboost code if i go over 18.1psi which really blows but yea car runs like a champ at an 18.6 spike and falling down with 11.7 A/F across the board.
hmm sry i thout u were running a larger turbo and getting "the stumble" sounds like ur issue may be ignition related id say chek plugs wired coil ect.
Nah homie its stock turbo with every bolton,except stage 1 now, the 05 must have more ways to read boost than people think because i have tried every trick out there,so i guess ill just have to go back to stage 1
This Q is for you fuel gurus, how far is tuning my car with an ebc and a safcII going to get me in terms of track times or HP? No disrescpect but, I don't want to get sucked into the endless purchase of mods for my car. There's only so much fuel you can pull with any set-up but has anyone maxed out the stock set-up before?...05 srt-4 with ebc and safcII.
thanks
AutoForums.com is the premier network of enthusiast-owned
enthusiast-operated automotive communities.
We operate more than 100 automotive forums where our users consult peers for shopping information and advice, and share
experiences and opinions as a community.
Linear Mode
