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A/F meter w/sidepipes?

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Old Nov 24, 2011 | 07:55 PM
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Default A/F meter w/sidepipes?

It seems like an A/F meter would be a very handy tuning item, BUT it also seems like it would be a challenge on a car with sidepipe headers.

Anyone been down this road before and can offer some advice?

John
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Old Nov 24, 2011 | 09:27 PM
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From: absecon nj
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Yes you can do it i have mine mounted just before the 4 inch tube facing slightly down towards the frame.I have seen them mounted pointed straight up but then its seen.
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Old Nov 24, 2011 | 09:54 PM
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Great...I assume you just had the bung welded in after drilling into the collector?

Which A/F meter did you select?

Thanks
John
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Old Nov 25, 2011 | 11:18 AM
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You can see in those pic's how I did it, I put an adapter with bung between the header collector to the sidepipe.

Passenger Side


Driver Side


Avner
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Old Nov 25, 2011 | 12:30 PM
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running side pipe headers is a little different than the ones Avner has.

I have my sensors mounted at the 3:30 and 8:30 positions. They are pointed a little down ward and have been this way for a few years now without any issues.

I'm using the Innovate LM1 with RPM converter.

Neal
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Old Nov 25, 2011 | 12:39 PM
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Please excuse the sidebar, but avner you are aware you're going to have significantly less ground clearance than with true sidemount headers? Speedbumps or coming off wheelies could pose a problem, especially if you lower...
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Old Nov 25, 2011 | 01:13 PM
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Thanks for the pics and info as I am accumulating stuff for my build.

One question -

I always wondered if with dual exhaust if you put a sensor in each side.

Question is answered here now with pics.

But as to the meter connection - do you put a switch in line and switch from driver to passenger side to take your readings?

TIA

Bman
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Old Nov 25, 2011 | 01:23 PM
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Originally Posted by bmans vette
Thanks for the pics and info as I am accumulating stuff for my build.

One question -

I always wondered if with dual exhaust if you put a sensor in each side.

Question is answered here now with pics.

But as to the meter connection - do you put a switch in line and switch from driver to passenger side to take your readings?

TIA

Bman
I run two narrow band sensors all the time and when I'm tuning I run a wide-band sensor with the LM1. Unless I see a large difference in the two banks I leave the wide-band on the drivers side.

The few meters I've seen with two inputs require two sensors and the ability to switch between them but not all meters allow this function.

Neal
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Old Nov 25, 2011 | 04:58 PM
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Originally Posted by chevymans 77
I run two narrow band sensors all the time and when I'm tuning I run a wide-band sensor with the LM1. Unless I see a large difference in the two banks I leave the wide-band on the drivers side.

The few meters I've seen with two inputs require two sensors and the ability to switch between them but not all meters allow this function.

Neal
Thanks Neal.
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