Forced Induction Superchargers | Turbochargers | Intercoolers

STS and AFR Guage?

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Old Feb 21, 2009 | 06:50 AM
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Default STS and AFR Guage?

I don't think I'd be the only person asking this - so I am assuming my searching techniques truly blow more than I thought but I'll ask anyways lol.

On my old car, the 04 STi - the AFR would plug into the downpipe after the turbo. With a rear mounted turbo - how am I to get the gauge all the way back there and wire it inside the car?? I don't see any holes for the additional sensor anywhere...

Thanks

Edit: Oops didn't realize I typo-ed the title. Sorry!
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Old Feb 21, 2009 | 08:31 AM
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I had mine on the drivers side right before the y. this way I was keeping an eye on number 7. never had a problem
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Old Feb 21, 2009 | 10:58 AM
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I thought it had to go after the turbo though to get an accurate reading? Can others assist clarifying as well? Thanks
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Old Feb 21, 2009 | 11:11 AM
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Mine is in the driverside y-pipe.
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Old Feb 21, 2009 | 11:25 AM
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did u guys just weld on a fitting and pop it in?
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Old Feb 21, 2009 | 12:04 PM
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I have put the wideband sensor in just about every postion possible while working at STS and I haven't found and solid evidence on weather to put it before the turbo or after. I have heard that the exhaust back pressure can damage the sensor if mounted before the turbo but I haven't had any issues with it. I do kind of like the idea of mounting the sensor on the driverside bank to keep an eye on #7 as best as possible.

Another thing to think about is that no matter where you have the turbo when you go to the dyno they just hook onto the tail pipe and that seems to work for them.
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Old Feb 21, 2009 | 12:19 PM
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Ah good point - i will be doing exactly that then. thanks for all the input!
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Old Feb 21, 2009 | 08:57 PM
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I got mine in the dr side manafold no problems, I had it in my down pipe after the turbo befor it read slower there tho.
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