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| SAK1600 | | Set |  | | Reg. Date | : | 13/03/2015 | | Posts | : | 93 | | Location | : | United States |
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| | Posted : 28 Feb 2016 - 03:56 Post title : Re: Stock Exhaust No Cat or Short/Long TORs No Cat? (Re: satch1961) | | |
satch1961 wrote:
Sak what tune are you running right now? |
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I'm running whatever tune it came from the factory with. I had it in my head that with the cat removak it was gonna lean the bike out, but no, of course its gonna run rich now thats what the cat does doesnt itm act kind of like a filter or something?
Snyperx, if you mean the optimizer plugs and bung plugs I got the from Lambda on fleabay for cheap $$.
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| SAK1600 | | Set | | | Reg. Date | : | 13/03/2015 | | Posts | : | 93 | | Location | : | United States |
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| | Posted : 28 Feb 2016 - 04:45 Post title : Re: Stock Exhaust No Cat or Short/Long TORs No Cat? (Re: Snyperx) | | |
Snyperx wrote:
Does someone have the part number of the O2 plugs?? |
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oxygen sensor eliminator | eBay
www.ebay.com/sch/i.html?_nkw=oxygen+sensor+eliminator
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| satch1961 | | Chaac | | | Reg. Date | : | 27/09/2013 | | Posts | : | 583 | | Location | : | United States |
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| | Posted : 28 Feb 2016 - 12:48 Post title : Re: Stock Exhaust No Cat or Short/Long TORs No Cat? (Re: SAK1600) | | | The cat is a restrictor. It is designed for quietness, tractability and emissions control. It traps unspent gases so less hydrocarbons are released into the environment. So therefore it also restricts airflow and free flowing air is what aids performance. That is why we use custom tunes when the cat is removed. More air is introduced when the cat is removed so you then need to balance the air/fuel ratio by adding more fuel. You can run the stock tune without a cat but you'll be too lean for optimal performance. I run the V3 tune with my cat so I balance my system and add more air by using the high flow filter and I removed the collar around the airbox.
Soooo... in short if you remove the cat you have to add more fuel. By removing the cat and leaving the stock tune you'll be lean. Hope this helps.
| 2010 1600 with 1700 cams; V4 custom tune; hi-flow filter; short TORS; rivco risers with spacers. Decat with elbows and baffles
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| Hornet | | Jupiter | |  | | Reg. Date | : | 05/05/2013 | | Posts | : | 1,294 | | Location | : | United States |
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| | Posted : 28 Feb 2016 - 14:55 Post title : Re: Stock Exhaust No Cat or Short/Long TORs No Cat? (Re: Snyperx) | | |
Snyperx wrote:
Does someone have the part number of the O2 plugs?? |
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I have a kit for sale in the classifieds. See lots of Goodies for sale.
| You'll never be first but you might be next
2014 Commander
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| SAK1600 | | Set | | | Reg. Date | : | 13/03/2015 | | Posts | : | 93 | | Location | : | United States |
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| | Posted : 28 Feb 2016 - 20:08 Post title : Re: Stock Exhaust No Cat or Short/Long TORs No Cat? (Re: satch1961) | | |
satch1961 wrote:
The cat is a restrictor. It is designed for quietness, tractability and emissions control. It traps unspent gases so less hydrocarbons are released into the environment. So therefore it also restricts airflow and free flowing air is what aids performance. That is why we use custom tunes when the cat is removed. More air is introduced when the cat is removed so you then need to balance the air/fuel ratio by adding more fuel. You can run the stock tune without a cat but you'll be too lean for optimal performance. I run the V3 tune with my cat so I balance my system and add more air by using the high flow filter and I removed the collar around the airbox.
Soooo... in short if you remove the cat you have to add more fuel. By removing the cat and leaving the stock tune you'll be lean. Hope this helps. |
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I just took it out for a good 2 hour blast and the bike was outstanding! Felt like it had more grunt than before . If removing the cat should lean it out I dont understand why the plugs were black and that unburnt fuel smell I was getting. I didnt notice the gas smell out on the road at a light or anything. I'm gonna do another plug check(fun), maybe out in riding conditions may have changed things, who knows.
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| SAK1600 | | Set | | | Reg. Date | : | 13/03/2015 | | Posts | : | 93 | | Location | : | United States |
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| | Posted : 05 Mar 2016 - 05:40 Post title : Re: Stock Exhaust No Cat or Short/Long TORs No Cat? (Re: satch1961) | | | OK so here we go, as I said I took the bike out last weekend for a good 2hr. blast, when I did the cat bypass I had only ran the bike in the garage with the old plugs still in it so when I went to change plugs, I had new ones I hadnt put in yet , the old plugs were black. So I ASS U ME the bike is running rich. Put new plugs in and took it out on the road, got back did a plug check now its running lean, plugs are white lol !
So I actually feel better about that, now I can add even more air so I can add more fuel ! Question, the collar you guys mention you take off around the air filter, do you mean the one with the scoop thats mounted to the underside of the seat? If your talkin about the one that actually bolts to the top of the airbox, then what holds the filter in place?
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| Leethal | | Zeus | |  | | Reg. Date | : | 24/01/2011 | | Posts | : | 6,524 | | Location | : | Australia |
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| | Posted : 05 Mar 2016 - 06:58 Post title : Re: Stock Exhaust No Cat or Short/Long TORs No Cat? (Re: SAK1600) | | | Perhaps they mean the rubber seal/strip, personally I have tried with and without and can't feel any difference and my autotune didn't make any significant changes when trying both ways.
| Experience is something you get just after you needed it 
1600,Foran Razorbacks, Meerkat bypass, Dyno tune, real headlight,plenty of chrome,switchblade pegs, Nitron R3 shocks & Ikon progressive fork springs etc. Scorpion Western Low handlebars. PH adjustable fork caps.
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| AZCactus | | Taranis | |  | | Reg. Date | : | 01/05/2013 | | Posts | : | 4,512 | | Location | : | AZ |
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| | Posted : 05 Mar 2016 - 07:57 Post title : Re: Stock Exhaust No Cat or Short/Long TORs No Cat? (Re: Leethal) | | | +1. i've wondered about that....
| 2009 Thunderbird 1700 Big Bore
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| satch1961 | | Chaac | | | Reg. Date | : | 27/09/2013 | | Posts | : | 583 | | Location | : | United States |
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| | Posted : 07 Mar 2016 - 02:04 Post title : Re: Stock Exhaust No Cat or Short/Long TORs No Cat? (Re: SAK1600) | | | Yes it is the collar that surrounds the top of the air box. It is held on by 4 small screws. Don't worry about the air filter moving around. It won't go anywhere. The benefits of removing the seal can be debated. It is just one more place where you can introduce air. Same as altering the guts of your seat pan to allow more air to flow. I imagine doing a dyno test with and without the air box cover would provide an accurate result
| 2010 1600 with 1700 cams; V4 custom tune; hi-flow filter; short TORS; rivco risers with spacers. Decat with elbows and baffles
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| satch1961 | | Chaac | | | Reg. Date | : | 27/09/2013 | | Posts | : | 583 | | Location | : | United States |
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| | Posted : 12 Mar 2016 - 16:21 Post title : Re: Stock Exhaust No Cat or Short/Long TORs No Cat? (Re: VABird) | | | Now here is a question... Some of us that did the elbows and short tors experienced the unbearable "blaaaaahhhh" on acceleration. So unnerving that I took the elbows off. But I am wondering if I were to line the inside of the elbows with a thick layer of neoprene if doing so would muffle some of that shrill noise. Of course pipes get very hot so I am also wondering if there would be a dangerous condition if the neoprene gets too hot...
Any ideas out there? Thanks
| 2010 1600 with 1700 cams; V4 custom tune; hi-flow filter; short TORS; rivco risers with spacers. Decat with elbows and baffles
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| Habuba | | Set | |  | | Reg. Date | : | 12/12/2010 | | Posts | : | 110 | | Location | : | New Bern, North Carolina, United States |
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| | Posted : 12 Mar 2016 - 17:20 Post title : Re: Stock Exhaust No Cat or Short/Long TORs No Cat? (Re: satch1961) | | | On my 1600 I installed 1.5" short baffles into the elbows to reduce the "blaaaaahhhh" and restore some of the back pressure, its not for everyone but it was what I was looking for.
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| satch1961 | | Chaac | | | Reg. Date | : | 27/09/2013 | | Posts | : | 583 | | Location | : | United States |
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| | Posted : 12 Mar 2016 - 19:43 Post title : Re: Stock Exhaust No Cat or Short/Long TORs No Cat? (Re: Habuba) | | | Very interesting Robert. I would like to hear more about the baffles and how you mounted them... since the elbows are obviously bent I imagine you found a short baffle. Did you wrap it in fiberglass sheeting before inserting?
| 2010 1600 with 1700 cams; V4 custom tune; hi-flow filter; short TORS; rivco risers with spacers. Decat with elbows and baffles
| | Post edited by satch1961 on 12 Mar 2016 - 20:14 |
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| Habuba | | Set | | | | Reg. Date | : | 12/12/2010 | | Posts | : | 110 | | Location | : | New Bern, North Carolina, United States |
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| | Posted : 13 Mar 2016 - 20:24 Post title : Re: Stock Exhaust No Cat or Short/Long TORs No Cat? (Re: satch1961) | | | The baffles (1.5 inch X 4 inches) was installed in front of the elbows facing backwards, then installed into the headers, note, the crimped part of the baffle slides into the elbow. I had to trim some of the elbows to make room for sliding it into the headers. I did not use any fiberglass sheeting, when you tighten the clamps down it should keep everything snug.
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| satch1961 | | Chaac | | | Reg. Date | : | 27/09/2013 | | Posts | : | 583 | | Location | : | United States |
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| | Posted : 17 Mar 2016 - 12:22 Post title : Re: Stock Exhaust No Cat or Short/Long TORs No Cat? (Re: Habuba) | | | Hmmm... did you purchase the baffles or construct your own? If you bought them do you have a link? I am deciding whether I should make my own and just drill a bunch of holes in them to give me a little back pressure while maintaining free flow...
| 2010 1600 with 1700 cams; V4 custom tune; hi-flow filter; short TORS; rivco risers with spacers. Decat with elbows and baffles
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| Habuba | | Set | | | | Reg. Date | : | 12/12/2010 | | Posts | : | 110 | | Location | : | New Bern, North Carolina, United States |
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| | Posted : 19 Mar 2016 - 00:30 Post title : Re: Stock Exhaust No Cat or Short/Long TORs No Cat? (Re: satch1961) | | | I bought them, just google "baffle 1.5 inches by 4 inches".
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| Dougl | | Chaac | |  | | Reg. Date | : | 13/07/2012 | | Posts | : | 544 | | Location | : | Reno, Nevada, United States |
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| | Posted : 19 Mar 2016 - 16:21 Post title : Re: Stock Exhaust No Cat or Short/Long TORs No Cat? (Re: Habuba) | | | Check out Big City Thunder baffles.
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| satch1961 | | Chaac | | | Reg. Date | : | 27/09/2013 | | Posts | : | 583 | | Location | : | United States |
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| | Posted : 21 Mar 2016 - 23:27 Post title : Re: Stock Exhaust No Cat or Short/Long TORs No Cat? (Re: Habuba) | | | So I bought the elbows and took a ride to JP Cycles where they had a 1.25" baffle long enough for me to saw off the end caps, then cut in half again to fit nice into the elbows. Wrapped it in stainless steel to have a nice tight fit and I am once again catless and enjoying the nice deep rumble... sounds awesome.
| 2010 1600 with 1700 cams; V4 custom tune; hi-flow filter; short TORS; rivco risers with spacers. Decat with elbows and baffles
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| Habuba | | Set | | | | Reg. Date | : | 12/12/2010 | | Posts | : | 110 | | Location | : | New Bern, North Carolina, United States |
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| | Posted : 22 Mar 2016 - 05:27 Post title : Re: Stock Exhaust No Cat or Short/Long TORs No Cat? (Re: satch1961) | | | Great, I'm glad the baffle addition worked out for you.
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| satch1961 | | Chaac | | | Reg. Date | : | 27/09/2013 | | Posts | : | 583 | | Location | : | United States |
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| | Posted : 22 Mar 2016 - 09:27 Post title : Re: Stock Exhaust No Cat or Short/Long TORs No Cat? (Re: Habuba) | | | I should say that I wrapped the baffles in steel wool - not stainless... But in any event who needs an expensive crossover pipe (about $400)when a $50 solution will work out awesome.
| 2010 1600 with 1700 cams; V4 custom tune; hi-flow filter; short TORS; rivco risers with spacers. Decat with elbows and baffles
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| AZCactus | | Taranis | | | | Reg. Date | : | 01/05/2013 | | Posts | : | 4,512 | | Location | : | AZ |
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| | Posted : 22 Mar 2016 - 14:56 Post title : Re: Stock Exhaust No Cat or Short/Long TORs No Cat? (Re: satch1961) | | | satch1961 wrote:
...But in any event who needs an expensive crossover pipe (about $400)..... |
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...me!  I have no interest in elbows and a good cat bypass can be a lot less than $400. 
| 2009 Thunderbird 1700 Big Bore
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