3 bar 5.3 single turbo cam. 15lbs and 14 degrees timing but it pops as it comes into boost. Definitely out exhaust.
3 bar 5.3 single turbo cam. 15lbs and 14 degrees timing but it pops as it comes into boost. Definitely out exhaust.
Originally Posted by jknight24
I can't look at the tune/log on this computer but
sounds like simple spark blow out. You running a tight gap on a TR6 or 7? is it iridium?
Does it clear up?
Did this just start recently? Or are you new to the engine/tuning?
Is this on 93 octane? Methanol? E85?
Altitude?
Need more info when ppl come to look at the log, because they won't know if this is the first time for example, if the problem is new or not, makes a huge difference.
What the actual AF ratio on your wideband? Just by looking at the mV output from the stock sensors, it appears to be very rich...over 950mV!
And...just like kingtalon asked...do you have the proper spark plug? An NGK TR7 gapped at 0.025" would be a great start.
I have always used the NGK BR7-EF plugs at .025" ish... Running E85 and 17 degrees. 20ish psi
1992 Ford Mustang - LR4 4.8 - BWS475 - LJMS Cam - E85
1981 Chevy C10 SWB 4.8/60e - air ride *currently building*
Gap them at .016-.020? and see it it helps.
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