Dyno sheet and vids, whats wrong??? Help please!!
02-21-2005, 09:31 PM
#1
Dyno sheet and vids, whats wrong??? Help please!! OK went and dynoed the 408 and did ok on motor, 484 rwhp and 497 rwtq. We then sprayed it and on the first run it was ok but anytime after that it acted funny as hell. Sputtering and backfiring kind of and my A/F took a nose dive at 4000 rpms. All of the runs after the first one looked like the bad run. We think we screwed up some plugs on my first pull. Anyway heres the grpahs and here are the vids. PLease any input would be aapreciated!!!! Sorry if the vids are too big and downloads are slow.
Good Run
Bad Run
Good Run
Bad Run
02-21-2005, 09:49 PM
#3
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it leaned out and I bet several of the plugs are gone. I hope you didn't make another pass after doing that the first time. You should have pulled the plugs to get an idea of what was going on. Hopefully, new plugs and figuring out your fuel issues will be all you need.
02-21-2005, 10:04 PM
#4
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Originally Posted by JeffT
it leaned out and I bet several of the plugs are gone. I hope you didn't make another pass after doing that the first time. You should have pulled the plugs to get an idea of what was going on. Hopefully, new plugs and figuring out your fuel issues will be all you need.
02-21-2005, 10:37 PM
#5
NAh no more runs but why did the A/F drop ar 4k straight down?? Fouled plugs cause that?? IT ran strong on motor after the nitrous run but on the way homw it did stutter a little every once in awhile. I just want to know why the A/F dropped like a rock at 4k like that.
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02-22-2005, 06:51 AM
#8
You know after looking at the graph is it possible that it is a faulty wideband?? When it drops off like that the HP and torque dont which they should. Unless Im running THAT rich on the spray which would be awesome the be making numbers like that being that rich.