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#1
02-05-2005, 10:47 PM
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pinging ?
pretty much since i bought the car i've been trying to set the timing properly and it still pings going uphill and above 3,000 rpms. i have a msd coil, fms 9mm spark plug wires, autolite #25 plugs set at .054 gap, stock dist with a jegs ignition module and the timing set at 12* with the spout connector unplugged. oh also the car runs on 87 octane. i've tried 10* up to 16* and still not much of a difference. am i doing something wrong at the balancer, maybe i'm not lining up something up correctly or am i missing something to check? any help would greatly be appreciated..
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87 5.0 5 spd T-Tops - mass air conversion 9AL, msd distributer, coil, fms 9mm wires, bbk ceramic coated long tubes, bbk h pipe, 3" flowmaster catback, 190 lph fuel pump, 24 psi injectors, 70mm cobra meter, bbk AFPR, bbk fender kit with k&n filter, 12* base timing, flex fan, 3 row aluminum radiator, 6 piece headlight kit w/ clear corners, silver ponys, stormin normin cowl hood, saleen wing, and recently a new heater core
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#2
02-06-2005, 11:55 AM
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Re: pinging ?
Has your engine ever been rebuilt? It may just have carbon buildup in the chambers. Have you tried putting premium in it to see if that solves it? Have you tried different brands of gas? My '91 explorer used to ping on regular Citgo, but ran fine on regular mobil/exxon/shell etc
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#3
02-06-2005, 12:05 PM
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Re: pinging ?
the previous owner said it was but he didn't have receipts to prove it so i don't know for sure. i've put in 89 octane a few times and it did help a little so i'l try premium and see if it cleans it out. thanks for the info.
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87 5.0 5 spd T-Tops - mass air conversion 9AL, msd distributer, coil, fms 9mm wires, bbk ceramic coated long tubes, bbk h pipe, 3" flowmaster catback, 190 lph fuel pump, 24 psi injectors, 70mm cobra meter, bbk AFPR, bbk fender kit with k&n filter, 12* base timing, flex fan, 3 row aluminum radiator, 6 piece headlight kit w/ clear corners, silver ponys, stormin normin cowl hood, saleen wing, and recently a new heater core
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#4
02-06-2005, 01:25 PM
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Re: Re: pinging ?
Quote:
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-Andy '89 Mustang 5.0 - How fast? i'll know this weekend. '86 Mustang LX - Shortblock is built, now for the rest of it. "Put the subject before the verb, hmm? Fail this class, you will." -Yoda teaches english class.
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#5
02-06-2005, 02:28 PM
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I would definately stick with a higher octane fuel I would make 89 the minimum. I personnally don't run anything but 91 or better. Duplox hit the nail on the head too about choosing gasoline. I can't tell you how many article I've read about cheap additives that go into gasoline to spread it out. I'd stick with Amoco's, BP, Phillips or Texaco. I don't like Shell but its better than Citgo.
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Ported Cobra Intake, Ported & polished Windsor Jr heads, K&N, Vortech s-trim, 90mm Lightining mass air meter, 70mm throttlebody,1.7 roller rockers, BBK Long tube headers, offroad H-pipe, Crane cam, main cap girdle, 40 series flowmaster, 3.73 gears, MSD ignition, CGS subframes, A9L PIH kit, SCT custom burned chip, 42lb injectors, 190lph fuel pump, T rex and fuel pressure regulator, AFCO racing radiator (If it doesn't scare the Hell out of you it isn't fast enough)
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#6
02-06-2005, 10:22 PM
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Re: pinging ?
thanks for all the info guys i'l try it out and see how it goes...
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87 5.0 5 spd T-Tops - mass air conversion 9AL, msd distributer, coil, fms 9mm wires, bbk ceramic coated long tubes, bbk h pipe, 3" flowmaster catback, 190 lph fuel pump, 24 psi injectors, 70mm cobra meter, bbk AFPR, bbk fender kit with k&n filter, 12* base timing, flex fan, 3 row aluminum radiator, 6 piece headlight kit w/ clear corners, silver ponys, stormin normin cowl hood, saleen wing, and recently a new heater core
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#7
02-07-2005, 11:12 AM
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Re: Re: Re: pinging ?
Quote:
However, I would switch to a colder plug ( Platinum may be too hot for this engine ) until the detonation stops. Also, run premium gas (Chevron, Mobil ) for a few months.
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