C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

resonator (remove or keep)

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Old Mar 1, 2005 | 07:18 PM
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Default resonator (remove or keep)

92lt1 - modded w/ ported heads and lt headers

Is it proven that removing the resonator will increase horsepower? I dont want resonance bad in the car- but i dont want to short myself any horsepower either?
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Old Mar 1, 2005 | 07:24 PM
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Old Mar 1, 2005 | 11:32 PM
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someone knows for sure
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Old Mar 1, 2005 | 11:44 PM
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Originally Posted by reed62783
92lt1 - modded w/ ported heads and lt headers

Is it proven that removing the resonator will increase horsepower? I dont want resonance bad in the car- but i dont want to short myself any horsepower either?
It will definitely increase noise levels. As for increasing power, I seriously doubt it. If your exhaust is stock then it has a 2.75" system. The resonator is a full 2.75" ID as well and it consists of perforated pipe through the full length of the resonator. There is no internal X or H or other crossover pipe in the body of the resonator. If your mufflers are stock that is where the restriction is.
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Old Mar 2, 2005 | 12:40 AM
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Personally I love the way mine sounds without it.
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Old Mar 2, 2005 | 01:46 AM
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I agree with TJ as well I have found in the past it "seems" like you losse some low end also..

Mo
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Old Mar 2, 2005 | 11:17 AM
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I talked with the B&B folks about the power gains of the X-pipe vs the Resonator. Using a LT4 as their mule on the dyno, they found very little difference in horsepower between their resonator and the X-pipe. BUT, there was a huge difference in loudness with the X-pipe.
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Old Mar 2, 2005 | 04:27 PM
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So are we saying the resonator acts like an X-pipe? My car came with the resonator already removed; I love the sound.
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Old Mar 2, 2005 | 10:10 PM
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Hey Strick, was the sound more or less with the x-pipe? Was the comparison between the two, or each to an exhaust system without either? I have loud resonance in my '85 with straight dual exhaust and just added an x-pipe. Haven't been able to try it yet because of the weather.
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Old Mar 3, 2005 | 02:24 PM
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I kept my resonator, the car was to loud without it. BTW the resonator is staight pipe so I don't think it would create a restriction.
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Old Mar 3, 2005 | 05:25 PM
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Originally Posted by TimV SR
Hey Strick, was the sound more or less with the x-pipe? Was the comparison between the two, or each to an exhaust system without either? I have loud resonance in my '85 with straight dual exhaust and just added an x-pipe. Haven't been able to try it yet because of the weather.
Let me explain the B&B test again. They ran a LT4 with OEM exhaust and their catback with a resonator and with a X-pipe. They were looking for horsepower differences between the resonator catback system and the X-pipe catback system. No, they didn't compare these to a straight pipe system. The X-pipe was much louder than the resonator by about 33%. The horsepower comparision showed little if any difference.
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