#100041, "leaning out on 3rd gear while boosting" May-07-07 08:59 AM by pete@6psi
can someone tell me what's wrong...i'm using a cartech fmu...with fuel pressure at about 30 psi...now when i boost a 3rd gear it leans out...1st, and 2nd gears are fine...its just 3rd gear that i'm leaning out...any help would be appreciated
#100044, "RE: leaning out on 3rd gear while boosting" In response to Reply # 0 May-07-07 10:08 AM by cs82685
Originally posted by pete@6psi can someone tell me what's wrong...i'm using a cartech fmu...with fuel pressure at about 30 psi...now when i boost a 3rd gear it leans out...1st, and 2nd gears are fine...its just 3rd gear that i'm leaning out...any help would be appreciated
fuel pressure at 30psi when? what size injectors?
need more info to help
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#100047, "RE: leaning out on 3rd gear while boosting" In response to Reply # 1 May-07-07 10:22 AM by pete@6psi
i have HR 270cc injectors...30 psi at idle...using a wideband to tune...while boosting on 3rd gear the wideband reads 13.xx...i know the safe reading is below 12.xx...
#100051, "RE: leaning out on 3rd gear while boosting" In response to Reply # 5
Originally posted by VelocitaPaola Never mind, I don't know what my point was... Tuning with just a Cartech seems arduous. Have you considered upgrading to something else? And what psi of boost are you beginning to lean out at? How about RPMs? What gear you're in doesn't tell us much. -http://www.symtechlabs.com/-
yeah..i also have vortech sfmu..but i'm not sure how to work it...i'm boosting at about 6psi...it starts to lean out at about 4500-5000 rpm...
#100054, "RE: leaning out on 3rd gear while boosting" In response to Reply # 6
Does it stay lean through your whole 3rd gear pull or does it richen up after a little while. On my car I am using a 12:1 Vortech FMU and when I hit 3rd gear, it leans out for a few seconds on my narrow-band gauge, but then richens up. What type of fuel pressures are you seeing at 6 psi?
Mike D -------------------------------------------------------------------------------------------------
Originally posted by DR1665 You're welcome to all the beer you can drink, but you have to go get it yourself. Don't get pissy when we point to the fridge and tell you to get it yourself.
#100058, "RE: leaning out on 3rd gear while boosting" In response to Reply # 8
Originally posted by totaleclipse_05 Does it stay lean through your whole 3rd gear pull or does it richen up after a little while. On my car I am using a 12:1 Vortech FMU and when I hit 3rd gear, it leans out for a few seconds on my narrow-band gauge, but then richens up. What type of fuel pressures are you seeing at 6 psi?
i'm using a cartech fmu...i also have a vortech sfmu but like i mentioned i don't know that works...so i put that aside and not using it until i get some help on how it works...maybe you can tell me...how did you hook the vortech sfmu...could you send me some pix (if you have any of your sfmu setup)...and about the problem that i have...when i hit 3rd gear my wideband reads a steady 13.xx...on 2nd gear it reads 11.xx...
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