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Author Topic: 3.436 bore x 2.386 stroke?  (Read 5628 times)

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Offline Ron Atchison/A.C.E. Race Engines

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3.436 bore x 2.386 stroke?
« on: September 05, 2008, 11:57:46 pm »
i have no numbers on an engine, it measures 3.436 bore x 2.386 stroke ..can someone tell me what series this is? it also has an aluminum valve cover on it only? thanks!
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Offline amcchevy1

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Re: 3.436 bore x 2.386 stroke?
« Reply #1 on: September 06, 2008, 12:01:15 am »
is this a twin or a single?
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Offline Ron Atchison/A.C.E. Race Engines

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Re: 3.436 bore x 2.386 stroke?
« Reply #2 on: September 06, 2008, 12:12:20 am »
Quote from: amcchevy1 on September 06, 2008, 12:01:15 am
is this a twin or a single?

single..sorry.
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Offline amcchevy1

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Re: 3.436 bore x 2.386 stroke?
« Reply #3 on: September 06, 2008, 01:16:55 am »
i only know of 21", 28" and 31". 28" has 3.44 bore with a 3.06 stroke. 31 has 3.56 bore with same stroke. 21" has a 3.44 bore with 2.264 stroke.
if it is a 21" the model # would be on the valve cover on the side.
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Offline lowgalaxie

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Re: 3.436 bore x 2.386 stroke?
« Reply #4 on: September 06, 2008, 07:27:22 am »
Sounds like a 26 ci. 14 hp vangaurd single.Is the carb mounted straight to the head or on the end of an intake.
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Offline sporty

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Re: 3.436 bore x 2.386 stroke?
« Reply #5 on: September 06, 2008, 08:19:23 am »
Quote from: da.racing on September 05, 2008, 11:57:46 pm
i have no numbers on an engine, it measures 3.436 bore x 2.386 stroke ..can someone tell me what series this is? it also has an aluminum valve cover on it only? thanks!

These numbers work out to 22 CI.
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Offline mowdak1

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Re: 3.436 bore x 2.386 stroke?
« Reply #6 on: September 06, 2008, 09:07:11 am »
Are you sure it's Briggs?? 22 cid would sound more like Tecumseh.
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Offline Ron Atchison/A.C.E. Race Engines

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Re: 3.436 bore x 2.386 stroke?
« Reply #7 on: September 06, 2008, 09:22:11 am »
Quote from: mowdak1 on September 06, 2008, 09:07:11 am
Are you sure it's Briggs?? 22 cid would sound more like Tecumseh.

yeah, it's a briggs. my son checked the stroke while i wrote it down..i just asked him again what was the stroke he replied "2.8 something" ..i guess i wrote it down wrong?    >if this helps, i measured the intake valve and it measures 1.450? thanks and sorry fro the misinformation/
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Offline mowdak1

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Re: 3.436 bore x 2.386 stroke?
« Reply #8 on: September 06, 2008, 08:16:17 pm »
Quote from: lowgalaxie on September 06, 2008, 07:27:22 am
Sounds like a 26 ci. 14 hp vangaurd single.Is the carb mounted straight to the head or on the end of an intake.


CID comes out to 26 with that measurement on stroke.
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Offline Snowman18

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Re: 3.436 bore x 2.386 stroke?
« Reply #9 on: September 07, 2008, 12:12:46 am »
Several good pictures would help us identify the engine for you.
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Offline George Herrin

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Re: 3.436 bore x 2.386 stroke?
« Reply #10 on: September 07, 2008, 12:35:47 am »
Quote from: lowgalaxie on September 06, 2008, 07:27:22 am
Sounds like a 26 ci. 14 hp vangaurd single.Is the carb mounted straight to the head or on the end of an intake.

Sounds like it to me too.
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Offline bountyhunter

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Re: 3.436 bore x 2.386 stroke?
« Reply #11 on: September 08, 2008, 07:30:28 am »
Rocky,Do you got the formula for figuring displacement??.need this to figure some compression ratios!
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Offline fordman21

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Re: 3.436 bore x 2.386 stroke?
« Reply #12 on: September 08, 2008, 08:18:28 am »
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Offline mowdak1

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Re: 3.436 bore x 2.386 stroke?
« Reply #13 on: September 08, 2008, 09:41:32 am »
Displacement Caluclators

Compression Ratio Calculators

Take your pick, those are much easier, but to answer your question... cid is figured by - Bore x Stroke

Couple of ways you can get there Bountyhunter -

Bore/2 or Bore x .5 = Radius ~ then you use the old standard ~ Pi x R2 x Stroke

Or, much simpler since we know the diameter of the bore, not the radius, in such cases -

(Pi x Your Bore)/4 x Stroke ~ (Pi x D)/4 x Stroke




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Offline bountyhunter

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Re: 3.436 bore x 2.386 stroke?
« Reply #14 on: September 09, 2008, 07:52:19 am »
Thanks Rocky & Ryan!! you guys are the best!! ;)
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