Goes lean sometimes under boost - SRT Forums

Matts04SRT · 10-15-2009, 10:01 PM

I just installed the ID 1000's inj and also the Bosch 040 intank pump, and was driveing home tonight and my w/b went to 15's, and the motor made a sputtering noise. My base fuel pressure is set at 62 psi, and w/ vacc. its around 55 psi. Im running a 60-1, with built motor, heads ported and polished and +1mm bigger valves, BC S3 cams, 55mm TB, 3" tbe, intake is just port matched and Im on a S2 pcm. Any thoughts?

LinkLow · 10-16-2009, 09:02 AM

what line do you have your fpr T'd into? Did this problem just start when you installed the injectors?

ST3PH3N'S SRT-4 · 10-16-2009, 12:14 PM

are you tunning thoses inj with anything? and also be sure ur foot stays smashed to the floor. mine does this because of low tb volts. if im not pounding the petal its not activating wot fuel.

Matts04SRT · 10-16-2009, 06:37 PM

To answer both first im tunning with a neo, and its T'd off the manifold, behind the TB, second yea it is under part throttle.
Thanks for the input

ST3PH3N'S SRT-4 · 10-17-2009, 12:53 AM

so u didnt tune the inj (rescale).. ur car thinks its running stage 2 inj so its sending waaaaay to much fuel not knowing it has inj twice as big as it does.

Matts04SRT · 10-17-2009, 10:13 AM

Quote: Originally Posted by ST3PH3N'S SRT-4

so u didnt tune the inj (rescale).. ur car thinks its running stage 2 inj so its sending waaaaay to much fuel not knowing it has inj twice as big as it does.

Nope how do I do that?

ST3PH3N'S SRT-4 · 10-17-2009, 12:24 PM

With a real tuning device not a map clamp like diablo

Matts04SRT · 10-17-2009, 03:52 PM

Quote: Originally Posted by ST3PH3N'S SRT-4

With a real tuning device not a map clamp like diablo

such as???

ST3PH3N'S SRT-4 · 10-17-2009, 04:46 PM

Quote: Originally Posted by Matts04SRT

such as???

i said diablo lol

ST3PH3N'S SRT-4 · 10-17-2009, 04:48 PM

and what rpm did you go that lean? you should be really rich, not lean.

Matts04SRT · 10-17-2009, 06:33 PM

Quote: Originally Posted by ST3PH3N'S SRT-4

i said diablo lol

oh yea my bad lol. I tried it again and it was rich like 10.0. I am looking into getting that soon, I just need to sell off a few things and will get it. It was I believe 5k-5500. thanks

ST3PH3N'S SRT-4 · 10-17-2009, 11:43 PM

Yea careful with those 10.0's cause ur prolly richer then that and u don't wanna wash out ur pistons. Diablo will def take care of all ur problems