Catalytic converter - 600RR.net
Exhaust & Fuel Delivery Tips on how to get the most out of your bike

 
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post #1 of 9 (permalink) Old 05-04-2006, 02:26 AM Thread Starter
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Catalytic converter

i have been bugged by this since i saw a stock header from a 1000RR lying around at a friend's garage, the honeycomb cat converter is located at a "bulge" just right before where you bolt an SO on, i had a gut feeling that the cat is located on the 2 "bulges" on our stock header which looks like a "powerbomb" from an FMF 4stroke header for dirtbikes.

have anybody tried to cut it open & remove the honey comb inside the bulges or just cut it off complely & weld a new tubing in place? for those of you with PC & SO this could be a worthwhile mod, if the honey comb poses a restriction you can cut it off & weld a stainless steel pipe in place of it to gain better exhaust flow & maybe add a couple more hp with a custom tuned map.


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post #2 of 9 (permalink) Old 05-04-2006, 04:24 AM
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My nephew has the honeycomb knocked out of his. Minimal differance if any.
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post #3 of 9 (permalink) Old 05-05-2006, 06:20 PM
 
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The cat needs to be gone to have the map properly tuned....... if u dont believe me ask birdman ha...i think im going to pull my cats out here sometime soon..
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post #4 of 9 (permalink) Old 05-05-2006, 07:46 PM
 
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The Cat won't give any more performance, done it and sen it myself. The only reason you need to cut it out is for custom mapping. For a PC and downloaded map, won't make a difference, only custom mapping as they put the sensor down the exhaust and the Cat will alter and infuence the air/fuel ratio that is being read, and so, you won't have accurate mapping of your bike.
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post #5 of 9 (permalink) Old 05-05-2006, 11:16 PM
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Is it nessacry to map wiht slipons?


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post #6 of 9 (permalink) Old 05-05-2006, 11:28 PM Thread Starter
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Quote:
Originally Posted by Birdman
The Cat won't give any more performance, done it and sen it myself. The only reason you need to cut it out is for custom mapping. For a PC and downloaded map, won't make a difference, only custom mapping as they put the sensor down the exhaust and the Cat will alter and infuence the air/fuel ratio that is being read, and so, you won't have accurate mapping of your bike.
thanks for the info Birdman i learn something new each & every other day. :)


2003 CBR 600RR JDM
HRC ECU AMA spec
HRC radiator
Electrex World race alternator
WP 4618 rear shock
WP 1508 steering damper
Ohlins 9.0N fork springs
Overrev tuned fork cartridges
Akrapovic Evo Carbon FS
Dynojet PCV WB2 POD300
BMC race air filter
AFAM 15/47 sprockets
DID VX2 520 gold chain
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HEL brakelines
Euro Racing riser plates & lever
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post #7 of 9 (permalink) Old 05-05-2006, 11:47 PM
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Like he said, not much of a difference. Federal Offense to remove it too.

My buddy did it in his Mitsubishi Evo VIII and it made a huge difference in performance and sound. But it was waaaay to loud, so he put it back in.


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post #8 of 9 (permalink) Old 05-06-2006, 08:11 AM
 
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Yeah cars it makes a huge difference, and on some bikes too, but not the 600RR. You don't need to map a slip on, or a full system, but you can bet your left nut it'll run way better if you do map it. LOL
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post #9 of 9 (permalink) Old 05-06-2006, 09:07 AM
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haha ok Birdman...will dynojet suggest a map to run with a micron slip-on or will micron have a map?


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