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Adding A Reed Cage ?

Magic_Man

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This was talked about briefly in the intake block thread. Has anybody messed with adding a reed cage to a saw ? I know some older saws had them, but I'm thinking more of a performance based valve from a small dirt bike. I found this one off of a 50cc Husqvarna , looks like it would be easy to fabricate around.

http://www.ebay.com/itm/Husqvarna-C...ash=item46432bd168:g:gWAAAOSw14xWKADb&vxp=mtr

I have a Husqvarna 51 with a closed port 55 top end that might make a good platform for experimenting since it has that goofy plastic partition/intake thing.
 
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Jughead

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Not to a saw but have looked into adding to piston port bikes.size is a restriction on saws though.the one you have up would be a good start but would probably be sized more for a 85-100+cc saw due to carb and intake size on dirt bikes.
The kawasaki triple and suzuki guys i used to be around were maniacs when it came to adding reed cages.:eeeeek:
 

Jughead

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Here's one.the reed cages are case induction.the intakes on the cylinders are blocked.
07.jpg
My friend John Aylor makes this kit
reeds3.jpg

I have one of these kits to go into my t500 unfortunately i havent had time to install it.:facepalm: Sorry Moo.
 

Magic_Man

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Interesting, am I correct in thinking that if a reed is added to the intake then the intake port could have as much duration as mechanically possible ? Because the reed would prevent spit back and the case compression would be against the reed, not the piston.
 

Jughead

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yeap.i would think the only thing stopping full duration on the intake induction would possibly be weakening of the piston.
 

Magic_Man

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Not to a saw but have looked into adding to piston port bikes.size is a restriction on saws though.the one you have up would be a good start but would probably be sized more for a 85-100+cc saw due to carb and intake size on dirt bikes.
The kawasaki triple and suzuki guys i used to be around were maniacs when it came to adding reed cages.:eeeeek:
So it looks like the little engines that use this cage came with either a 14mm carb on the Jr model or a 19mm on the Sr model.
 

Jughead

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Hey magic man check these out theyre affordable for experimentation.
 

Al Smith

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Art Martin who seldom said much about that legiondary souped 090 he had from years ago once had a small comment about it on a site I no longer and will never post on again .

According what he had said that engine was built to use reed valves via the transfer ports .
I might add the ole boy also had an interesting design on a race chain .It was cutter-cutter space as oppossed to standard which is cutter space cutter .Fact I have pictures on my other computer if I can find them .
If anybody has an interest you might search the archives of A-site under D Babcock .That is unless they got deleted .
 

Magic_Man

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Sounds interesting, have to see if I can find some info.
 

David Young

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Adam Clarke put one on a 359. On the old race saw site. It was part of a built off against Brian Wright (tw). Beautiful work by Adam but didn't show well against Brian's saw.

It lead me to believe adding a reed wasn't a good plan
 

chy_farm

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Here's one.the reed cages are case induction.the intakes on the cylinders are blocked.
View attachment 5993
My friend John Aylor makes this kit
reeds3.jpg

I have one of these kits to go into my t500 unfortunately i havent had time to install it.:facepalm: Sorry Moo.
Hello Jughead, thank you for sharing wonderful pics of the Kawasaki, love to see them. Wanting to fabricate one for my old McCulloch 795 with a sheet of carbon fiber. The purpose is to raise the rev velocity to 13000.
Thanks again.
Chy
 

chy_farm

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Found a couple of manifolds for old McCulloch nicely designed Bob,

Bobs_mod.jpg
My assumption is that HE put some best reed valves in this, but do not know if he put carbon or not...
Chy
 
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