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John Horn
Master
Joined: 29 Nov 2006
Posts: 684
Location: Troy Ohio
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 Posted: Tue Jul 08, 2008 1:14 pm Post subject: |
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| I have asked,,,and I was told that I couldn't have, or trade for the can....just in case. |
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Francis Whaling
Senior Novice
Joined: 27 Nov 2006
Posts: 194
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| Posted: Wed Jul 09, 2008 7:58 am Post subject: |
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RLV has changed the configuration of the SSX can muffler many times and there has never been a performance advantage so I am quite sure that there is no advantage with these cans............... I agree with Jean thats it sucks but what are you going to do it is beyond our control as a organization that follows WKA rules to dissagree with their decision to allow them.
The total surface area of the 14 holes on the inside of the can is greater then that of the 4 holes on the outside, and with the amount of back pressure that that creates inside the can I really don't think that the location of the 4 holes will make any difference whatsoever on the performance of the engine...................Now if you made the 4 holes on the outside larger that would be a different story but that is not the case here so I believe this is all much ado about nothing.
As for Rays suggestion about local engine builders testing this, I don't think this local engine builder will waste his time............. Sorry Ray.
Francis
Her's a PS for ya..................PS... Is nobody worried about this "NEW CAN" blowing hot exhaust gasses directly at the chain, this could be a good thing or a bad thing that much heat will have to go somewhere...............into the clutch maybe??????................ Just a thought mull it over, chew on it a while and pass it around.
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Only two things are infinite the universe, and human stupidity, and I am not sure about the former._____________Albert Einstein |
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Jean Stafford
Master
Joined: 27 Nov 2006
Posts: 624
Location: Dayton, Ohio
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| Posted: Wed Jul 09, 2008 12:03 pm Post subject: |
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I was more concerned about blowing "Crap" on the rear axle bearing. Thought about it, thought I'd see if anyone else noticed.
And, you're right I won't bother to test the "New" Can.
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Jean Stafford
Stafford's Racing
4606 Webster St.
Dayton, Ohio
937-277-9944
E-Mail: Jean@sgandt.com
Last edited by Jean Stafford on Wed Jul 09, 2008 12:16 pm; edited 1 time in total |
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Gary Osterholt
Master
Joined: 15 Jan 2007
Posts: 597
Location: Tallahassee, FL
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Jean Stafford
Master
Joined: 27 Nov 2006
Posts: 624
Location: Dayton, Ohio
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| Posted: Wed Jul 09, 2008 12:19 pm Post subject: |
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| Gary Osterholt wrote: | This new can won't be as bad as the old SSX that had all 4 holes on the bottom side of the can.
Gary |
Define "Bad" Gary.
As far as I know the SSX Can is still legal in WKA. Only restriction is mounting direction, holes down.
Did I miss something??
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Jean Stafford
Stafford's Racing
4606 Webster St.
Dayton, Ohio
937-277-9944
E-Mail: Jean@sgandt.com
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RayM
Just Another Club Racer
Joined: 25 Nov 2006
Posts: 1456
Location: Upsidedown on the track
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| Posted: Wed Jul 09, 2008 12:57 pm Post subject: |
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| Francis Whaling wrote: |
Francis
Her's a PS for ya..................PS... Is nobody worried about this "NEW CAN" blowing hot exhaust gasses directly at the chain, this could be a good thing or a bad thing that much heat will have to go somewhere...............into the clutch maybe??????................ Just a thought mull it over, chew on it a while and pass it around. |
Hmmm let me see if I got this right... Kart moves forward, air flow goes from front to rear, exhaust can is mounted on the backside of engine, clutch is at mid point of engine below exhaust can , the exhaust is blown out to the side but is deflected rearward by the air flow of the moving kart
Maybe if it is sitting and running, some of the heat would affect the clutch, but it can not be much to makes any difference, considering the heat that is generated by the engine and clutch itself.
what am i missing? 
as to the chain with the exhaust port pointed down ward, I would not think the additional heat would be good for it, yet the exhaust gases contain left over un-burnt oils but that would also have some carbon in it which I do not think is good for the chain .....so I would think that is not a good thing
But with the other style of can the exhaust port would be blowing at the rear tire, while it is at a standstill, which may not be a good thing....
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Tight is when the front end of my car hits the wall first and loose is when the back end hits first."
and scrape marks on the top of the helmet is a wheels up condition. |
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Gary Osterholt
Master
Joined: 15 Jan 2007
Posts: 597
Location: Tallahassee, FL
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| Posted: Wed Jul 09, 2008 1:39 pm Post subject: |
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| Jean Stafford wrote: | | Gary Osterholt wrote: | This new can won't be as bad as the old SSX that had all 4 holes on the bottom side of the can.
Gary |
Define "Bad" Gary.
As far as I know the SSX Can is still legal in WKA. Only restriction is mounting direction, holes down.
Did I miss something?? |
Bad in how much "crap" went on the rear axle with the SSX can that had all the holes on the bottom.
And I think the four holes together on the bottom is illegal for sprint. At least on the RLV website.
Gary
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RayM
Just Another Club Racer
Joined: 25 Nov 2006
Posts: 1456
Location: Upsidedown on the track
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| Posted: Thu Jul 10, 2008 7:11 am Post subject: |
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Well so far nothing that I can find has been published by WKA inregards to this Exhaust can.
Pat ?
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Tight is when the front end of my car hits the wall first and loose is when the back end hits first."
and scrape marks on the top of the helmet is a wheels up condition. |
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Francis Whaling
Senior Novice
Joined: 27 Nov 2006
Posts: 194
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| Posted: Thu Jul 10, 2008 7:29 am Post subject: |
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Ray Wrote................... what am i missing?
You are missing the fact that the exhaust exits the hole in the can at an extremely high pressure and if you look how close that the can is to the chain on most karts it is obvious to me that the exhaust will transfer exhaust heat to the chain and therefore to the rest of the drive train.............. I hope I explained it simple enough that you can understand.
Francis
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Only two things are infinite the universe, and human stupidity, and I am not sure about the former._____________Albert Einstein |
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RayM
Just Another Club Racer
Joined: 25 Nov 2006
Posts: 1456
Location: Upsidedown on the track
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| Posted: Thu Jul 10, 2008 7:36 am Post subject: |
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| Francis Whaling wrote: | Ray Wrote................... what am i missing?
You are missing the fact that the exhaust exits the hole in the can at an extremely high pressure and if you look how close that the can is to the chain on most karts it is obvious to me that the exhaust will transfer exhaust heat to the chain and therefore to the rest of the drive train.............. I hope I explained it simple enough that you can understand.
Francis |
Okay, I can kinda see where you are coming from....but I do not think the chain alone would transfer enough heat to the driver to make much of a difference ,let alone the clutch it self.
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Tight is when the front end of my car hits the wall first and loose is when the back end hits first."
and scrape marks on the top of the helmet is a wheels up condition. |
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Gary Osterholt
Master
Joined: 15 Jan 2007
Posts: 597
Location: Tallahassee, FL
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| Posted: Thu Jul 10, 2008 9:22 am Post subject: |
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The chain is in contact with the clutch driver all the time. The heat of the chain and the friction of the chain moving is huge. And the clutch driver will transmit the heat to the clutch as the heat won't want to move towards the bottom end of the engine. It will goes towards the cooler side which will be the clutch side.
Gary
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Gary Osterholt
http://www.garyosterholt.com
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Mark Lewis
Junior
Joined: 30 Apr 2008
Posts: 105
Location: 100 miles away....ready to strike
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| Posted: Thu Jul 10, 2008 12:26 pm Post subject: |
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SOMETIMES PAPER AND CRAYONS CAN EXPLAIN THINGS BEST
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RayM
Just Another Club Racer
Joined: 25 Nov 2006
Posts: 1456
Location: Upsidedown on the track
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| Posted: Thu Jul 10, 2008 7:57 pm Post subject: |
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Okay Gary that makes sense , but I have touched the chain many times and it never feels very hot to the touch. Which is why I do not think it transfers that much heat to the driver, plus the fact that there is a good sized air gaps in the chain which provides good air flow threw it.
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Tight is when the front end of my car hits the wall first and loose is when the back end hits first."
and scrape marks on the top of the helmet is a wheels up condition. |
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Gary Osterholt
Master
Joined: 15 Jan 2007
Posts: 597
Location: Tallahassee, FL
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| Posted: Fri Jul 11, 2008 7:41 am Post subject: |
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Ray,
The rate of heat loss is going to be good with the chain, with the air flow, etc. Which is why when you touch it after the race it doesn't feel that heat.
I think you'd be surprised with the amount of heat that is generated during use. Remember friction causes HEAT. So anything metal to metal will generate heat. One of the reasons you should also lube the chain is to decrease the friction, ie heat of the chain.
Hope that makes more senses.
Gary
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Gary Osterholt
http://www.garyosterholt.com
http://www.godesigns.us |
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Doug Brown
Grid marshal
Joined: 09 Jul 2007
Posts: 23
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| Posted: Fri Jul 11, 2008 7:52 am Post subject: |
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| Mark Lewis wrote: | | SOMETIMES PAPER AND CRAYONS CAN EXPLAIN THINGS BEST |
That explaines why the right rear get so hot and transfers the heat to the axel and then tranfsers to the sprocket carrier, the to the chain and then the clutch, and all along I thought it happend this way , its mind boggling to think all that heat came from the exhaust its unbeliveable |
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Jean Stafford
Master
Joined: 27 Nov 2006
Posts: 624
Location: Dayton, Ohio
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| Posted: Fri Jul 11, 2008 7:54 am Post subject: |
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I used one of those "Cjeap'' red plastic guards that comes with the Birel Kart i\on a Can Kart. Gas pressure and heat cut the plastic in two in one 4 minute "Warm-up" session.
Lots of energy there.
_________________
Jean Stafford
Stafford's Racing
4606 Webster St.
Dayton, Ohio
937-277-9944
E-Mail: Jean@sgandt.com
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RPotter
Corner Worker
Joined: 30 Jun 2008
Posts: 28
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| Posted: Tue Jul 15, 2008 1:45 pm Post subject: |
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My dad and I have a 45 degree can. THERE IS NO PERFORMANCE ADVANTAGE OF THE CAN! We put on a normal can and then the 45 degree can and there were no advantages or disadvantages of having them on.
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