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Wideband location

This is a discussion on Wideband location within the Computer & Tuning forums, part of the LSx Technical Help Section category; I'm looking at a custom dual exhaust setup, but as we all know, there is limited space under our cars. ...

  1. #1
    Sold: LS1 '85 El Camino ls1camino's Avatar
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    Wideband location

    I'm looking at a custom dual exhaust setup, but as we all know, there is limited space under our cars. So as an answer, I was going to put my mufflers right after the headers and then run the dump pipes to infront of the axle.

    Here's my question...is it ok to place the wideband after the muffler? Will it alter the reading from what it should be if it was placed normally (before the mufflers)?

    Also, while I'm here, does it matter that the mufflers are that close to the headers?

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    Veteran 0rion's Avatar
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    why not put the mufflers right before the axle with dumps on the mufflers? That's where everyone puts them. I'm not sure how mufflers right on the headers would work out. I know they make header mufflers but those are typically for all out race cars.

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    Veteran 0rion's Avatar
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    Sold: LS1 '85 El Camino ls1camino's Avatar
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    I mainly wanted the wideband question answered, but I'll respond to the exhaust while I wait for an answer.

    Mostly it's space confinement. I have a body mounted torque arm, so the Texas Speed True Duals won't work, and my car is lowered so having an exhaust that does not go down the driveshaft tunnel is just stupid with the number of potholes and speedbumps in Maryland. If I put the mufflers where the y-pipe normally is and then snake the pipes to the rear axle, I don't have to worry about fitting the mufflers back there around the the driveshaft and torque arm. My other option was to just have the mufflers right after the headers and dump them right there and not have to worry about running pipes, period. I've settled on bullet mufflers, so you can kinda see what I'm trying to do.

  5. #5
    TJEA Retirement Home Dr.Crash's Avatar
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    no the wideband needs to be free of any obstructions and as close to the header as possible. Other wise you could get false/delayed readings.

  6. #6
    TunedbyFrost.com Tuner Frost's Avatar
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    After the muffler is way too close to open air. Put it between the collector and the muffler.

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