50lb injectors max out? [Archive] - SR20 Forum

: 50lb injectors max out?


R0b_
09-09-2005, 11:57 AM
I just hooked up my consult yesterday, and did a quick run up to about 60mph, and noticed my injectors hit 73% duty cycle during that time, and with only 7-8lbs of boost.

Now since I have run 14lbs in the past, wouldn't that mean my injectors were going static?

I thought 50lb injectors would give me plenty of play room!

One other tidbit of info which could be the culprit - I got no reading at all from the O2 sensor, and it said "AF Lean" at the bottom of the screen the whole time no matter what I was doing. Obviously I need to check into that issue, but I wanted to make sure I don't have undersized injectors regardless.


Anyone know what the limit is on 50lbs?

Stats:
JDM 9.5:1CR SR20DE, 50lb injectors, cobra MAF, aeromotive FPR, JWT ECU, T25/T28 hybrid, dual stage water injection, 3" exhaust, fidanza flywheel, 2-pulley set, outlaw spacers. Last dyno 287whp 283tq @ 14lbs

cortrim1
09-09-2005, 12:04 PM
the 3bar 50lb program is good to at least 350whp. I would say that the lack of a working o2 sensor is causing false reading. I bet you are running super rich as well.

wes
09-09-2005, 05:14 PM
I just hooked up my consult yesterday, and did a quick run up to about 60mph, and noticed my injectors hit 73% duty cycle during that time, and with only 7-8lbs of boost.

Now since I have run 14lbs in the past, wouldn't that mean my injectors were going static?

I thought 50lb injectors would give me plenty of play room!

One other tidbit of info which could be the culprit - I got no reading at all from the O2 sensor, and it said "AF Lean" at the bottom of the screen the whole time no matter what I was doing. Obviously I need to check into that issue, but I wanted to make sure I don't have undersized injectors regardless.


Anyone know what the limit is on 50lbs?

Stats:
JDM 9.5:1CR SR20DE, 50lb injectors, cobra MAF, aeromotive FPR, JWT ECU, T25/T28 hybrid, dual stage water injection, 3" exhaust, fidanza flywheel, 2-pulley set, outlaw spacers. Last dyno 287whp 283tq @ 14lbs


The lean/rich reading from the sensor is useless, it does not sample under WOT conditions so take ti with a grain of salt.

bl200sx
09-09-2005, 05:34 PM
I thought the 3 bar/50lb were good for 525cc of fuel, that would be good for about 330WHP, and the 550cc were good for the 350WHP.

mser-2
09-09-2005, 10:29 PM
i thought Consult displayed inj. duration in milliseconds not as a %. i am trying to find out the same info but i couldn't figure out how to get Consult to display in %.

R0b_
09-10-2005, 12:54 AM
It's the one that says duty cycle.

OK, so I should be good with my current setup even after I upgrade to the disco potato, although it will be close.

I just wanted to make sure I wasn't maxxing them out on my current setup. I tried, but Greg V. was out until Monday when I called - hopefully I can get a new sensor soon.

yingtiry
09-10-2005, 01:58 AM
the 50lb program is good not for 350 whp but 350 flywheel hp. right around 300whp is the limit. you can crank the fp up some but it's not a long term solution.