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jetting calculator
#339582 06/22/2009 6:28 PM
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is pats jetting calculator based on removing the cat or leaving it in, or does it even matter?

08 America, Freak, removed a few baffels


I am but a Jester in a court of Kings. 08 America, Baffelectomy, Freak, Hard Bags w/ blinkys, Stock Pilots/158 Mains, ISO's, Procom CDI my bike
Re: jetting calculator
scubadude #339583 06/22/2009 9:23 PM
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Maybe I'm an idiot....but what is "cat"??


Blue/White, Battery Relocated, 155/45's, AI removed, Cocktail shakers
Re: jetting calculator
08America #339584 06/22/2009 9:55 PM
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im sure your not an idiot, just not informed. "cat" is short for catalytic converter. its the honeycomb looking thing in the header side of your stock slip ons that helps reduce emissions.


I am but a Jester in a court of Kings. 08 America, Baffelectomy, Freak, Hard Bags w/ blinkys, Stock Pilots/158 Mains, ISO's, Procom CDI my bike
Re: jetting calculator
scubadude #339585 06/22/2009 10:46 PM
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Ok then since you're sure I'm not an idiot I guess I can try to help answer your question

I used the jet calculator when I installed my new pipes and changed to K&N's and never took into account the cat. If that helps at all.


Blue/White, Battery Relocated, 155/45's, AI removed, Cocktail shakers
Re: jetting calculator
08America #339586 06/23/2009 5:08 AM
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If you are an idiot just stay at a Holiday Inn.


I learned all I need to know about life by killing smart people and eating their brains.
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Re: jetting calculator
08America #339587 06/23/2009 8:06 AM
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I guess they have done away with the air injection set-up on the new models! and replaced them with "cats"

My '04 790 had air injection to ignite and burn unburnt fuel from the exhaust gasses etc

The TOR shorts have nothing special inside them. I used a 25mm holesaw to remove the plug (from the back) - the blind/plug/blank to push the gasses through the baffle material. I could see nothing like honeycomb in there.

The "cats" are supposed to be so hot they achieve the same thing. I hope you don't have to put up with the old "bang-pop-pop-bang" we used to put up with on the overrun, 'till removing the air injection!! Man that was embarrasing to listen to!


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Re: jetting calculator
The_Dog33 #339588 06/23/2009 8:07 AM
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I might have missed something, but I am not aware of any of the carburated twins having catalitic converters. No cats (or katz as we spell it) to factor in.


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: jetting calculator
mag10 #339589 06/23/2009 10:50 AM
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So enlighten me on this one too. We have AI instead of cats, katz, catalytic converters...right? Because that was my understanding of the AI-was to burn the unspent fuel in the exhaust pipe. Which would be essentially the same use as the catalytic converter-right?


Blue/White, Battery Relocated, 155/45's, AI removed, Cocktail shakers
Re: jetting calculator
08America #339590 06/23/2009 11:11 AM
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Quote:

Because that was my understanding of the AI-was to burn the unspent fuel in the exhaust pipe.




From what I understand AI is (was) there to 'dilute' the exhaust by mixing in air to appease the EFI gods.


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