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> Wideband Question
turbohcar
post May 5 2008, 01:46 PM
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Hellloooo LADIES! biggthumpup.gif

Good to see some familiar folks around here. Just had a particular question for the folks of DSMCentral and what they think. I now have a 2005 Yamaha Raptor 660 as my fun-toy of choice. I'm looking to install a wideband O2 setup to make tuning the carbs on this badboy super easy as it's becoming more and more common. Just wondering if the guru's here could tell me if there would be any difference between the widebands used on any regular automotive application and say an ATV?

If there isn't any real difference, I'll be looking to pickup a used Innovate LM-1 for those that might be looking to sell cool.gif


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turbohcar
post May 6 2008, 07:06 AM
Post #2


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From: Fletcher/Bloomington
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No dyno on hand, just the one in the seat o' the pants. Closest actual ATV dyno is said to be just north of Indy.

The ignition curve is pretty much set by the rev box. It's non-adjustable as far as I know. Although, the aftermarket rev boxes may be adjustable, not sure.

Some of the guys on the Raptor site have already tried the wideband setup with great results. They say they're shooting for somewhere in the 13.0-13.5 range and getting good results. They're more or less amateurs at it and I knew you guys would be more knowledgeable on this sort of thing. It seems that the widebands they are running are no different in type than the ones run on cars. I suppose the basic principles would be the same, just on a smaller engine.

It's a single cylinder, 660cc, dual carb setup, gasoline 4-stroke. I'm about to rejet for taking the spark arrestor out and the airbox lid off.

BTW, supposedly these things run the same 1/8th mile time STOCK as my Camaro and the Talon ran blink.gif .


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