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Old August 8th, 2008, 12:22 PM   #1
fearnofish06860
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Default wide band o2 or JET4POWER

hey, just wondering if any of you other riders out there have a wide band o2 sensor, or a Jet4power meter for motor tuning purposes. i am in need of one, but they are quite expensive...
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Old August 8th, 2008, 12:36 PM   #2
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LOL, I use the spark plug and my butt dyno for tuning.
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Old August 8th, 2008, 12:39 PM   #3
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Quote:
Originally Posted by ScOoTeR View Post
LOL, I use the spark plug and my butt dyno for tuning.
x2
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Old August 8th, 2008, 01:05 PM   #4
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yeah, i would do that, but after i bored, stroked, and upped my compression, i would like to have my air to fuel spot on, so i have always have a very reliable trail machine, especially since its air cooled...
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Old August 8th, 2008, 01:21 PM   #5
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look online to get ballpark and then fine tune from there
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Old August 8th, 2008, 01:25 PM   #6
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were on the way to the refuling station to get some premium right now,

the kid is soposed to rum premium with a stock motor and now with a stroker and higher compression decides to put the cheap stuff in the tank.

me brother
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Old August 8th, 2008, 01:48 PM   #7
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High CR stroker and air cooled?

What engine, what jets were you running stock?
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Old August 8th, 2008, 02:17 PM   #8
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its a 350 raptor. the same 350 they have been using for years.

i dont know the rest ill have him fill ya in.
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Old August 8th, 2008, 02:57 PM   #9
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well, it is a raptor 350, i dont know the stock jetting right off my head, but its got a hot rods +7mm stroker crank in it, 10.5:1 compression, and its bored to 84mm. im also running a HMF pipe, with a uni filter. the stock jetting i believe is somwhere around 142 or so, but im not 100% positive
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Old August 8th, 2008, 03:07 PM   #10
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I have an NGK unit, but its in my jeep :)

How soon do you need it? Inovative makes a LC-1 for $150 with sensor. Can data log with it as well.
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Old August 8th, 2008, 03:17 PM   #11
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did you try raptorsource.com? raptorforum.com? moddedraptor.com?
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Old August 8th, 2008, 07:58 PM   #12
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to be safe, if you were jetted correctly before, I would jump up a minimum of 2 jet sizes for both the pilot and the main. I'd also raise the needle one clip.
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Old August 9th, 2008, 02:39 AM   #13
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word
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