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How Tall Are Your Stacks


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#1 larryd OFFLINE  

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Posted March 09, 2013 - 09:36 PM

I'm coming out the side panel on my jd 314 with a straight stack. Haven't decided whether a 45 andle or a flapper at top. My question is about what height do you folks have your stacks ?

It's going to be noisy . Coming off engine with standard screw in adapter -90into 1 1/2 with a 4"  piece of 3/4 inside for some back pressure. The 1 1/2 is 12" long this goes into a 1 1/2 90 into a 2" stack ? long . 

 

larryd

 

P.S.

Hopefuly I get my computer fixed and can start pic's again .


Edited by larryd, March 09, 2013 - 09:43 PM.

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#2 wawcub47 OFFLINE  

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Posted March 09, 2013 - 09:52 PM

we used to run a 30'' end to end mandral bent pipe on a 16 hp kohler .was LOUD, but all us pullers ran about the same length.


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#3 rustyoldjunk OFFLINE  

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Posted March 09, 2013 - 10:42 PM

I have had this stack on my simplicity 700 for probably over 10 years.I know it looks rough,it finally spent some time sitting outside over the last 2 or 3 yeares so it needs cleaned up.It is a little hard to tell in the picture but it isnt a very tall one,i see people putting them way to high IMHO but there is no need at least not for me before the exhaust blows out of the stck with such force it shoots up and away,not back in your face.BTW i have added some baffling out of a 4 wheeler exhaust into the stack in the last 3 years or so but can't tell a huge difference.The old cast iron big block briggs sounds great thru the stack...

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Edited by rustyoldjunk, March 09, 2013 - 10:48 PM.

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#4 rustyoldjunk OFFLINE  

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Posted March 09, 2013 - 10:53 PM

Here is a couple of better pictures but they are older ones..

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#5 larryd OFFLINE  

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Posted March 10, 2013 - 12:13 AM

I've thought about dropping one of those old round mufflers down the stack but don't know what it would do to backpressure.

All my bends are mandrel bent.

 

larryd


Edited by larryd, March 10, 2013 - 12:19 AM.


#6 A.C.T. OFFLINE  

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Posted March 10, 2013 - 12:53 AM

Not real tall but plenty loud!

 

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cub 040.JPG


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#7 poncho62 ONLINE  

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Posted March 10, 2013 - 06:55 AM

I bought 2 tractors with stacks on them. Bent both under tree limbs....I dont bother with them now.


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#8 LTD OFFLINE  

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Posted March 10, 2013 - 08:40 AM

Here is my 108 with a stack and clapper. It is approximately 3 feet tall.

IMG_0374.JPG


Edited by LTD, March 10, 2013 - 08:40 AM.

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#9 ckjakline ONLINE  

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Posted March 10, 2013 - 10:07 AM

I was told to get max flow you make a chalk line or crayon mark every inch going up your pipe,and cut the pipe off at the first crayon mark that doesn't burn off.Thats how you get your height of a straight pipe or stack.


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#10 JRJ OFFLINE  

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Posted March 10, 2013 - 11:27 AM

That is interesting how to determine the correct height-never heard of it before-learn something new everyday.

 

 

Dick


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#11 JRJ OFFLINE  

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Posted March 10, 2013 - 11:58 AM

Larry you know your wife isn't going to allow any unusual loud noises.

 

 

Dick


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#12 larryd OFFLINE  

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Posted March 10, 2013 - 05:49 PM

If she complains I'll have to spend about $100 dollars for a stock muffler..

 

larryd



#13 JakeKuhn ONLINE  

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Posted March 12, 2013 - 06:12 AM

mine on the 401 is nice and tall. Not exactly sure but I would guess mine is about 3ft.

 

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#14 crittersf1 OFFLINE  

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Posted March 12, 2013 - 06:26 AM

I was told to get max flow you make a chalk line or crayon mark every inch going up your pipe,and cut the pipe off at the first crayon mark that doesn't burn off.Thats how you get your height of a straight pipe or stack.

I've used this method on race car header extensions.


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#15 twostep OFFLINE  

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Posted March 12, 2013 - 08:28 AM

For noise I would like my stack to be taller. But there are two things to consider; first if it is too tall you will have trouble getting close to trees. And second, the flappers make a bunch of racket... I had one and after about 15 minutes I took it off. Now I just be sure to not let it get rained on or I put an empty beer can over the pipe.

 

IMG_5176.JPG


Edited by twostep, March 12, 2013 - 08:30 AM.

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