BS3--initial startup (or lack thereof)
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BS3--initial startup (or lack thereof) The last couple years I seem to only turn to the forum when I have problems. For that I truly feel like an *******, but I must find guidance. I think I am going to answer my own question(s) but concurrence is always nice. I've also posted this in the PCM forum.
Engine is 6.0, 236/238 115 lsa cam, 80mm Precision turbo, Vic Jr, and 160# injectors. The engine almost runs. I cranked it a few times today, got 3-4 brief starts, approximately a second each. It seems holding it at WOT helps. I don't seem to smell fuel except on the dipstick. The BS3 default calibration was modified by me for basic operating config parameters, a richer AFR table, and less spark timing. All else is untouched. The 160# injectors were almost certainly overkill so I am guessing I'm drowning the cylinders and that's why it won't run. So my options I guess are decrease my opening times or get some 96#'s. My preference would be to tune the 160#'s since I already have them but am ready to give them up as well. Thoughts?
Engine is 6.0, 236/238 115 lsa cam, 80mm Precision turbo, Vic Jr, and 160# injectors. The engine almost runs. I cranked it a few times today, got 3-4 brief starts, approximately a second each. It seems holding it at WOT helps. I don't seem to smell fuel except on the dipstick. The BS3 default calibration was modified by me for basic operating config parameters, a richer AFR table, and less spark timing. All else is untouched. The 160# injectors were almost certainly overkill so I am guessing I'm drowning the cylinders and that's why it won't run. So my options I guess are decrease my opening times or get some 96#'s. My preference would be to tune the 160#'s since I already have them but am ready to give them up as well. Thoughts?
find anything majorly out of wack in the cal?
it wasn't mentioned, but my car never ran for **** with 160's unless i turned base fuel pressure real low to get duty cycle over 1% at idle.
it wasn't mentioned, but my car never ran for **** with 160's unless i turned base fuel pressure real low to get duty cycle over 1% at idle.
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I loaded Chris's file today (my car is at my parent's house). Apparently the one I had initially was either corrupt or just didn't save my changes. Chris noted that the firing order was for a SBC but I knew I had changed it. So anyway got that lined out. The car didn't start at first but I kept going on and it finally started. I had to hold my foot on the throttle to keep it running--let off and it'd die. Sounded rough, much white smoke. I need to adjust something.
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I decreased the injector size in the operating config to 1200cc and lowered the fuel pressure to 30 psi. The smoke continued as before. I had my laptop connected this time and the AFR was bouncing between 9 and 10. Unless anyone has anymore suggestions, I may be in the market for some 96#'s.
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The white smoke is definitely exhaust/smoke and not steam. I have no water in the block whatsoever at this point. It's coming directly out of the exhaust pipe and the turbo inlet as I appear to have a leak there. The way it smells and burns my eyes, it seems it should be black, ha.
if you have 160's then moving to 1200cc was the wrong direction.. of course that being said those injectors cant possibly lean out any further because they are allready trying to close while they are still opening.
provided you have spark happening at the right time i would try a milder injector just to get you going... heck it probably is the right move anyways.. mototron 60's can handle all that 80mm can throw at it and are significantly easier to work with on a small cube high vacuum engine.
provided you have spark happening at the right time i would try a milder injector just to get you going... heck it probably is the right move anyways.. mototron 60's can handle all that 80mm can throw at it and are significantly easier to work with on a small cube high vacuum engine.
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if you have 160's then moving to 1200cc was the wrong direction.. of course that being said those injectors cant possibly lean out any further because they are allready trying to close while they are still opening.
provided you have spark happening at the right time i would try a milder injector just to get you going... heck it probably is the right move anyways.. mototron 60's can handle all that 80mm can throw at it and are significantly easier to work with on a small cube high vacuum engine.
provided you have spark happening at the right time i would try a milder injector just to get you going... heck it probably is the right move anyways.. mototron 60's can handle all that 80mm can throw at it and are significantly easier to work with on a small cube high vacuum engine.
