Cat Bypass - The Next Step in Heat Reduction

[Bob Denman]

So I'm guessing that there would be a need to address the direction of the airflow, as much as the amount of airflow... :banghead:

 

[spydee owner]

Cats

First, understand that the cat does not reduce greenhouse gases. It swaps one gas for another. (Reduces CO and increases CO2). And while it may help with smog a bit, it increases CO2.

Second, greenhouse gases and the whole global warming discussing is FAR too political and not allowed for discussion here on Spyderlovers. Suffice it to say there are many that disagree with your sentiments but lets not discuss here.

Back to Spyder discussions.....

First, you obviously are not up on your science. You can go to your country's EPA website and read up on greenhouse gases.
Secondly, I was talking about spyder catalytic converters. I did not make it political, you did.
Finally, did the owner of this site make you a moderator, and final say to any discussion? I made a comment and did not deserve to be cut off at the knees by your final comment "Back to Spyder discussions ...". It is no surprise to me that people who have belonged to this forum much longer than you are leaving the site, or not posting!

 

[Bob Denman]

ARE WE STARTING THIS CRAP AGAIN???? :gaah:
Please pull your post before this place turns into another "Free For All"...

 

[spydee owner]

Cats

Bob, I made a comment about spyder cats. It was jcthorne who took it upon himself to act judge jury and executioner. The only way, I will change this post is if I get a posted apology from him. I have been a member here since '09 and should be allowed to make an innocent post without being dressed down - especially by a member who only has been a member for a year. Ask jcthorne to retract his post Bob.

 

[Bob Denman]

Nope...
His answer to yuou was polite and explanatory. He then tried to get the discussion back on track...
You got crazy, and started yelling about science and politics...
We just went through a bloodbath in here; would you like to be the guy who starts another one?

 

[jcthorne]

If it helps to diffuse the situation any, I will offer a sincere apology to anyone that was offended by my comments. As is normally the case for me, offending was not my intention.

 

[spydee owner]

Cats

Bob, my initial comment never put the thread off track. Jcthorne, in my opinion, cut me out of the discussion by his comment "back to discussing spyders". He was the one who decided to give me an online lesson in catalytic converter chemistry. I did not go against anyone using a cat bypass. I made a simple comment on a thread.

I see now Bob, you are a self appointed moderator and online defender of the allegedly wrongly accused. I understand that it is easier for you to defend the comments of a fellow American, than an ousider. Now, I made it political.
In future, to help with your moderator duties, you may want to grow a spine and a pair of balls.
I am contacting Lamont and voluntarily requesting to be removed from this site.

 

[Bob Denman]

"Bob, my initial comment never put the thread off track. Jcthorne, in my opinion, cut me out of the discussion by his comment "back to discussing spyders". He was the one who decided to give me an online lesson in catalytic converter chemistry. I did not go against anyone using a cat bypass. I made a simple comment on a thread.

I see now Bob, you are a self appointed moderator and online defender of the allegedly wrongly accused. I understand that it is easier for you to defend the comments of a fellow American, than an ousider. Now, I made it political.
In future, to help with your moderator duties, you may want to grow a spine and a pair of balls.
I am contacting Lamont and voluntarily requesting to be removed from this site."

VERY nice... :clap: :roflblack:

:chill:

 

[robmorg]

Bob,

Thanks for the effort, but it's probably best to just let it go. No one is going to change his mind, and if no one argues with him, he can't argue back.

A discussion of the cat bypass is a worthy discussion on this form, and I don't want to have to delete this thread.

 

[Bob Denman]

:2thumbs: I guess that I started off the day, in less than my best form... :dontknow:

 

[mstngken]

Aren't catalytic converters used to limit the amount of greenhouse gases that go into the environment?
I know people are using the cat bypass to limit the localized heat when they ride, but, in the long term, the more greenhouse gases
that are put into the environment, make the environment hotter.
People complain about the temperature of the environment when they ride, but then remove the cat and potentially make things worse in the long term.

Just go and drive your Junkota Prius smell your own farts and belive everything the gooberment tells you about global warming! Its all true lol.

 

[AlEverett]

Simple Question

I have a simple question that is totally non-political. What is the difference between a Cat Bypass and just removing the catalytic convertor completely. I would think a muffler shop could cut out the catalytic convertor and replace with length of muffler tubing and weld the whole shebang together. What am I ignorant of here.

 

[Bob Denman]

it actually is the same thing...
You need to fill in the hole in the exhaust system, that is created when the converter is shelved.
That's the By-Pass.

 

[robmorg]

Yep. "Bypass" may be a misleading term. Here is what it looks like. The catalytic converter is removed and this pipe simply replaces it, sending the exhaust from the two headers into the muffler, and then out the back. The "round things" in the packages are new gaskets to replace those that are likely to be damaged when the cat is removed.

 

[jaherbst]

Removing the CAT is not the ultimate fix for heat dissipation. Don't expect too much. Probably only helped 10-20%. This is highly overrated. This will not solve your heat problem nor get rid of the noxious gas fumes. Had mine installed by PitBull at the owners event in Durango. I was disappointed. It did very little.
The bypass is a well made piece of work but did very little for fumes and heat.
I tried to trade for a 2014 last week in Las Vegas, Phoenix and Tucson (warm climates) best I could do was $12,000 for a 2013 RT-S with 5000 miles. No one down here wants them. Probably OK in the Northern Climes. Talked to BRP today about putting the correct engine in the new frame or making up the difference for the trade. the 2013 is the new frame and was designed to use the 1330 engine. Exhaust on the 998 is not compatable with the 2013-2015 frame. That is the reason for the heat problem on the 2013.

 

[Bob Denman]

All the same; every little bit has to help... right? :dontknow:

 

[robmorg]

All the same; every little bit has to help... right? :dontknow:

Right!

Jack, I'll be very happy if the cat bypass reduces my seat heat another 10-20% from what it was when I first bought the bike. The things I have already done have gotten rid of about 75% of the original heat, and eliminated the boiling gas issue for me. And the ECM update (Bulletin 2013-9), which enriched the mixture at idle and slow speeds, has helped some too when you are in slow moving situations. As this thread title implies, the cat bypass is just another step in the process. I won't know now until next summer how effective it has been.

I entirely agree with you that where you live makes a big difference. I have been closely monitoring the heat threads on this forum, and with few exceptions, it seems that those with the largest complaints - even with boiling gas and overflowing canisters - live in the southern states where the temperature gets hotter and stays hotter longer.

Talked to BRP today about putting the correct engine in the new frame or making up the difference for the trade. the 2013 is the new frame and was designed to use the 1330 engine.

Just curious to know, Jack, how that conversation went.

 

[Bob Denman]

:agree: Are they mailing you a 1130?? :dontknow: :bbq::bbq::bbq:

 

[jcthorne]

Removing the CAT is not the ultimate fix for heat dissipation. Don't expect too much. Probably only helped 10-20%. This is highly overrated. This will not solve your heat problem nor get rid of the noxious gas fumes. Had mine installed by PitBull at the owners event in Durango. I was disappointed. It did very little.The bypass is a well made piece of work but did very little for fumes and heat.I tried to trade for a 2014 last week in Las Vegas, Phoenix and Tucson (warm climates) best I could do was $12,000 for a 2013 RT-S with 5000 miles. No one down here wants them. Probably OK in the Northern Climes. Talked to BRP today about putting the correct engine in the new frame or making up the difference for the trade. the 2013 is the new frame and was designed to use the 1330 engine. Exhaust on the 998 is not compatable with the 2013-2015 frame. That is the reason for the heat problem on the 2013.

You do realize that the exhaust routing on the 2010 thru 2012 RTs is identical to the 2013 right? Its the revised component locations that result in much lower air flow under the tupperware that is the heart of the problem. The 2014 resolved it by moving the exhaust outside of the tupperware, not possible on a v-twin.

Let us know if BRP actually lends a hand to assist in any way.

 

[jaherbst]

You do realize that the exhaust routing on the 2010 thru 2012 RTs is identical to the 2013 right? Its the revised component locations that result in much lower air flow under the tupperware that is the heart of the problem. The 2014 resolved it by moving the exhaust outside of the tupperware, not possible on a v-twin.

Let us know if BRP actually lends a hand to assist in any way.

The difference is the newly designed frame for the 14's that they used in the 13's with the 998 engine. The frame was not designed to work with the 998. The tolerances are different and the add on mounts to adapt the 14 frame to the 13 engine (998)
puts the exhaust including the CAT in or around the tupperware. The exhaust on the 998 flows around and down the engine, then through the CAT, back over to the exhaust pipe and then the muffler. On the 1330 the exhaust goes strait down and out, back to the exposed CAT then the muffler. Thus avoiding all the exhaust piping and CAT inside the cowling or tupperware. WRONG FRAME FOR WRONG ENGINE.

Jack