extended intake for more low end power

BrewerB

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#31
Forgive me if I missed this somewhere in the thread, but what exact automotive hose are you all using? I did find some radiator hose with the proper ID/OD, but it is made of EPDM, which has a very bad rating to be used with gasoline. I looked at silicone tubing as well, but it seems to also exhibit poor compatibility with gasoline. Any advice would be great, thanks in advance.
 


FurryOnTheInside

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#33
Forgive me if I missed this somewhere in the thread, but what exact automotive hose are you all using? I did find some radiator hose with the proper ID/OD, but it is made of EPDM, which has a very bad rating to be used with gasoline. I looked at silicone tubing as well, but it seems to also exhibit poor compatibility with gasoline. Any advice would be great, thanks in advance.
I'm using reinforced silicone hose. It seems to be fine with the fuel, maybe won't last forever but I can afford to replace it after a year or whatever. The thickness and reinforcing is important, makes it not collapse from the vacuum inside.
 

Frankenstein

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#34
Forgive me if I missed this somewhere in the thread, but what exact automotive hose are you all using? I did find some radiator hose with the proper ID/OD, but it is made of EPDM, which has a very bad rating to be used with gasoline. I looked at silicone tubing as well, but it seems to also exhibit poor compatibility with gasoline. Any advice would be great, thanks in advance.
We have found that home depot has heater hose available, https://www.homedepot.com/p/UDP-5-8-in-I-D-x-10-ft-Rubber-Heater-Hose-T62006002/304185176?cm_mmc=Shopping|G|Base|All-Products|All|All|PLA|71700000014585962|58700001236285396|92700010802552406&gclid=Cj0KCQjw77TbBRDtARIsAC4l83nFXdARxlHy0vm-BAm19K0aWqyPc7RaM6S4CrW9bEACfSnOw4SiA4caAjFjEALw_wcB&gclsrc=aw.ds&dclid=CJbL4pTp49wCFdFTDAods1gAfA, it's cheap enough and fits over the stock intake rather nicely, clamp with a clamp of course.

I would not be concerned with gasoline compatibility, it's too thick and reinforced to break down, and doesn't come in contact with enough straight gas to even begin dissolving. It's basically stable, maybe not good enough for NASA, but surely good enough for the average joe with a cheap bike and an engine that didn't cost 3 times as much as Bill Gates' house.
 
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