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high rpm popping lt1

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Old 04-08-2007, 01:00 PM   #1
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Default high rpm popping lt1

I have a 94 lt1 formula, and recently I will hear a repeditive popping noise at 4k rpm and above. it also seems to fall on its face a little, but it dosent always "pop". it will only do this under load.
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Old 04-08-2007, 01:01 PM   #2
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Might be detonation.
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Old 04-08-2007, 01:13 PM   #3
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Sounds like it's time to replace the opti. How many miles do you have on it?
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Old 04-08-2007, 01:32 PM   #4
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the car has 160000 miles on it, i am going to try and replace the plug wires first, a long time mechanic rode with me and said it was more like cross firing and not pinging or detonation.
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Old 04-08-2007, 03:38 PM   #5
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Well if that still has the stock opti on it, I'm surprised it lasted that long. The wires won't help gurantee, you need to replace that opti.
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Old 04-08-2007, 04:12 PM   #6
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if i do need to replace the opti, are they all created equal? stock gm replacement or msd or accel or jegs? how will i know thats the problem and not something else like maybe the coil or plugs?
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5000, 94, camaro, high, ignition, load, ls1tech, lt1, noises, pinging, pop, popping, rmp, rpm, rpms

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