Running lean, what's the problem?
#47
ok, walbro installed, after 4000 or so, the AFR ratio went down off the chart, below 10.
so it's running super rich.
got my dynoflash, with just tbe(no cat) and mbc set to 22psi, tapering to 21psi and made 304 whp, 308tq.
but al turned it down a bit to 280 something whp and 309 tq.
It was the fuel pump all along. I guess at higher psi or in colder weather, it just doesn't deliever enough fuel right past when you spool up fully.
thanks guys.
I'll post some dyno sheets and spark plug pix. Will change my spark plug to bpr7iex (iridium) from bpr7es.
so it's running super rich.
got my dynoflash, with just tbe(no cat) and mbc set to 22psi, tapering to 21psi and made 304 whp, 308tq.
but al turned it down a bit to 280 something whp and 309 tq.
It was the fuel pump all along. I guess at higher psi or in colder weather, it just doesn't deliever enough fuel right past when you spool up fully.
thanks guys.
I'll post some dyno sheets and spark plug pix. Will change my spark plug to bpr7iex (iridium) from bpr7es.
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LancerEvoMR
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Nov 12, 2003 11:36 AM