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| Author: | deralic22 [ Fri Dec 21, 2012 8:08 am ] |
| Post subject: | stainless snorkel |
Just want to know off those who have snorkels would 50mm ID stainless tube be to small for a snorkel? |
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| Author: | Fatzook [ Fri Dec 21, 2012 8:43 am ] |
| Post subject: | Re: stainless snorkel |
Thats a matter of opinion really. Personally, I'd be looking at 2.5" (63mm) atleast. I only use 3" (75mm) for snorkels. |
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| Author: | Gwagensteve [ Fri Dec 21, 2012 10:53 am ] |
| Post subject: | Re: stainless snorkel |
X2. I think 2" might be a bit small - there's a fair length that will increase frictional loss, and 2" is hard to find a ram duct/precleaner for. I only make snorkels in 3" Steve. |
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| Author: | sando [ Fri Dec 21, 2012 3:50 pm ] |
| Post subject: | Re: stainless snorkel |
My snorkel is 3inch and looks a treat, has a 2.25inch tip as a 3inch inlet on a ram head will be way to big for a little sierra engine. |
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| Author: | douglasgiersch [ Fri Dec 21, 2012 4:08 pm ] |
| Post subject: | Re: stainless snorkel |
Correct me if im wrong but you would want as close size to whatever the opening of the carby/intake as you chould? |
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| Author: | Gwagensteve [ Fri Dec 21, 2012 5:48 pm ] |
| Post subject: | Re: stainless snorkel |
sando wrote: My snorkel is 3inch and looks a treat, has a 2.25inch tip as a 3inch inlet on a ram head will be way to big for a little sierra engine. Sorry? How do you figure that? Steve. |
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| Author: | sando [ Fri Dec 21, 2012 5:53 pm ] |
| Post subject: | Re: stainless snorkel |
Steve just realised what I wrote, I ment pre-cleaner not ram head. When I looked at pre-cleaner sizes the ones with three inch inlet were to large for the amount of air the sierra could use. |
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| Author: | Gwagensteve [ Sat Dec 22, 2012 6:51 am ] |
| Post subject: | Re: stainless snorkel |
Ah yes, that does make sense. Steve. |
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| Author: | deralic22 [ Sat Dec 22, 2012 3:41 pm ] |
| Post subject: | Re: stainless snorkel |
ok thanks thought it might of been bit small its just i have a heap of it at work looks like ill have to buy some |
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| Author: | luke3411 [ Mon Dec 24, 2012 7:21 pm ] |
| Post subject: | Re: stainless snorkel |
douglasgiersch wrote: Correct me if im wrong but you would want as close size to whatever the opening of the carby/intake as you chould? I would like to know also |
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| Author: | neofitou [ Mon Dec 24, 2012 8:06 pm ] |
| Post subject: | Re: stainless snorkel |
Its due to the extra surface resistance of the pipework itself over the length of the longer pipe adding up, its more significant than you would guess, I remeber doing the math in high school physics, but I would have to google it nowadays. |
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| Author: | neofitou [ Mon Dec 24, 2012 8:14 pm ] |
| Post subject: | Re: stainless snorkel |
http://www.pipeflowcalculations.com/pressuredrop/ Pressure drop is calculated for known flow rate, pipe diameter, pipe length, fluid density and viscosity. For flow rate calculation, pressure on the start and on the end of pipe is required, as well as pipe diameter, pipe length, fluid density and viscosity. Pressure drop in pipe calculation is based on the Darcy-Weisbach equation for head loss due to friction in closed round or rectangle pipe. |
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