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fuel/air ratio guage ?
#368730 01/04/2010 2:28 PM
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hi
I want to fit a fuel/air ratio guage to my 05 america. I am sure I have seen some posts on the topic here but a search has not turned anything up, can anyone point me in the right direction, thanks.

Re: fuel/air ratio guage ?
steve303 #368731 01/04/2010 6:24 PM
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summitracing.com or jegs.com


2005 America 145 mains, , #48 pilots, , k&n pod filters, ported intakes manifolds, nology coils and wires, pro com CDI, 62 HP at wheel 68,000 hard miles still runs great gone "traded"
Re: fuel/air ratio guage ?
damien #368732 01/04/2010 6:25 PM
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2005 America 145 mains, , #48 pilots, , k&n pod filters, ported intakes manifolds, nology coils and wires, pro com CDI, 62 HP at wheel 68,000 hard miles still runs great gone "traded"
Re: fuel/air ratio guage ?
steve303 #368733 01/04/2010 8:12 PM
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One of the challenges is finding a suitable weatherproof gauge mount. The rest is pretty easy...weld a bung, install a wideband O2 sensor, pick the gauge of your choice, & wire it up.

Re: fuel/air ratio guage ?
B02S4 #368734 01/04/2010 8:43 PM
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I'm looking into this to,,,,,,,
Check out this web site.

http://www.dynotunenitrous.com/store/scripts/prodView.asp?idproduct=129

You can get away fairly cheap.

Was thinking of setting up two units on a used header for tuning purposes

Re: fuel/air ratio guage ?
burtard #368735 01/04/2010 9:16 PM
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I am installing one of these this winter http://www.innovatemotorsports.com/products/MTS.php


05 speedmaster - 1100cc, 11:1 racing pistons, Carillo rods, thunderbike cams, ported and polished head, 2mm over intake and exhaust valves, Barnett kevlar clutch, scepter pipes, oversize manifolds, 45mm HSR's, TTP stage 4 firestarter
Re: fuel/air ratio guage ?
mag10 #368736 01/05/2010 12:00 AM
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Quote:

I am installing one of these this winter http://www.innovatemotorsports.com/products/MTS.php




Which gauge specifically, & how/where do you plan to mount the gauge?

Re: fuel/air ratio guage ?
B02S4 #368737 01/05/2010 3:09 AM
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What I don't get is where do you install the A/F sensor in our bikes (carb models)?

Fortunately being stupid ain't a crime...

Re: fuel/air ratio guage ?
Harald73 #368738 01/05/2010 9:23 AM
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Quote:

...where do you install the A/F sensor in our bikes (carb models...




Usually on the crossover tube.

Re: fuel/air ratio guage ?
B02S4 #368739 01/05/2010 10:44 AM
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Quote:

Quote:

I am installing one of these this winter http://www.innovatemotorsports.com/products/MTS.php




Which gauge specifically, & how/where do you plan to mount the gauge?



probably the G2 kit. and a temperary mount on the handlebars. I need it to tune the FCRs, I do not intend to leave it on permanently. THe sensor bung will go in the cross over pipe.


05 speedmaster - 1100cc, 11:1 racing pistons, Carillo rods, thunderbike cams, ported and polished head, 2mm over intake and exhaust valves, Barnett kevlar clutch, scepter pipes, oversize manifolds, 45mm HSR's, TTP stage 4 firestarter
Re: fuel/air ratio guage ?
mag10 #368740 01/05/2010 12:53 PM
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After intense reading,,,the O2 senors need to be installed above 9 O'clock and 3 O'clock because moisture will destroy sensor quick.

Tapping into the crossover would give you a rough(ruff)(my opinion) average of the two cylinders. If Adjusting carbs evenly(screws and/or jets) one would assume you will achieve accurate A/F ratio off of each cylinder,,,,,,Ideal world?

From reading,,,,,,,,"I" would tap(the bung mount) into each header 1.5" from header bolts.

O2 sensors need to be hot before they start work'n.
Right off the cyl. head sounds ideal.

Buy a POS header,,,,weld the bung mounts.
Test one side at a time at idle and adjust.
follow the "throttle position guide lines for tuning carberators". Found on this web site,,,

Money burning hole in pocket,,,,buy two of the "Inovative" LC-1 kits($300+,,,,each),,,,then,,,you can monitor both lungs(cyl.'s) at same time.

THEN,,,,,,you could mail the system to other members,,,get your money back,,,they could tune,,,and send to the next,,,,and on and on,,,,,,,,,,

Once you have your bike "pegged in",,,,,why leave it on the shelf?

The units i'm looking at are less costly.
Gauge's,,,$69 * 2,,,,O2 sensors,,,$29 * 2,,,,Bung Kits,,,$10 * 2.

High dollar units(Inovative" LC-1 kits) come with software so you'll get more info.

Re: fuel/air ratio guage ?
burtard #368741 01/05/2010 7:49 PM
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I ran one single wire Bosch O2 sensor & Nordskog A/F meter on a previous I4 bike. The O2 sensor was mounted on the mid-pipe & performed just fine. There are heated O2 sensors if you are concerned about sensor temperature, however IMO as a practical matter it's much ado.

The ideal setup would arguably be a separate sensor & meter for each cylinder, however as a practical matter a single sensor in the crossover will work just fine.

What many don't realize is that the A/F ratio is going to vary in different conditions & sometimes from moment to moment, no matter how well tuned the carbs are.

Re: fuel/air ratio guage ?
B02S4 #368742 01/05/2010 11:03 PM
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It's a little ironic that EFI BA/SM owners are disconnecting their O2 sensors and carbed BA/SM owners are installing them.


Cheers, Richard
~~~~~~~~~~~~
09 America, Staintune Pipes, K&N, Breathe, Hagon Nitros, AI & O2 removed, tune 20184 (modified), MTX-L a/f gauge
Re: fuel/air ratio guage ?
foglefar #368743 01/06/2010 6:39 PM
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Quote:

It's a little ironic that EFI BA/SM owners are disconnecting their O2 sensors and carbed BA/SM owners are installing them.





And most don't need them at all! (wonder how many D&D, South Bay, or anybodys for that matter, prepped motors have them, WANT them, or would find them, permenantly installed, as beneficial?)

Anybody? (professionals)


And you may see me tonight With an illegal smile J. Prine

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