Fuel pump to carb braided or steel?

[Cudakiller70]

Looking for any and all experience, options, thoughts or advise. 340 mildly built.
Need to replace engine fuel lines, worried about rubber fuel lines leaking with using today's gas. Currently it's all rubber from pump to Holley carb (both inlets).
At first was thinking steel is preferred from pump to carb? Wanted to do all steel with inline filter, but worried about heat. Could use DEI insulation to help?
Not finding any kits, so for all steel it looks like I'll need to buy prebent lines then cut, flare and adapt?

Wondering if black braided with PTFE would be as good or better? Ease of install? Heat? I'm going to do the short piece from the tank line to the pump with braided for sure.
Braided seems a lot more by the time you get all the fittings?

[jhaag]

factory used steel. simple, easy, and cheap. you can use 5/16 or 3/8 brake line. comes in many lengths, with ends flared and fittings on. figure out what length is closest to your needs, bend it up, and done. worried about heat, insulate it. 

[Racer57]

worried about rubber fuel lines leaking with using today's gas.

If by "todays gas" your referring to E10, its been in the nations fuel supply for over 30 years so I wouldn't believe all the political motivated hype.

[Cudakiller70]

factory used steel. simple, easy, and cheap. you can use 5/16 or 3/8 brake line. comes in many lengths, with ends flared and fittings on. figure out what length is closest to your needs, bend it up, and done. worried about heat, insulate it. 

Like what your saying, simple, easy and cheap. Thanks, steel it is. 

If by "todays gas" your referring to E10, its been in the nations fuel supply for over 30 years so I wouldn't believe all the political motivated hype.

I don't know what California has in our "Boutique gas" we switch 2 times a year. But it seems in recent years I've had numerous fuel problems with chain saws, weed whacker's, lawn mowers and more the list keeps growing. In my Sthil saw, the fuel pick up line was literally eaten up, about 50% gone! It'll give me a little piece of mind to change it. Thanks

[cudabob496]

been using Ace Hardware 3/8 rubber automotive fuel line for 25 years with no leaks

[moparelwood]

Like what your saying, simple, easy and cheap. Thanks, steel it is. 
I don't know what California has in our "Boutique gas" we switch 2 times a year. But it seems in recent years I've had numerous fuel problems with chain saws, weed whacker's, lawn mowers and more the list keeps growing. In my Sthil saw, the fuel pick up line was literally eaten up, about 50% gone! It'll give me a little piece of mind to change it. Thanks

I to have seen this issue with small engines. There is something to the issue of E15 Fuel. The American Motorcycle Association has some pretty good info about it. I was going to as some links here byt rhere web site is been upgraded at the moment and all the articles are down. I will add them soon as they become available.   

[734406pk]

This hose type holds up well to E-15:

 https://www.amazon.com/Sierra-116-368-0566-Shields-Permeation-Marine/dp/B002IVCPV6

Any brand of hose that meets SAE J1527  201102 spec has the same resistance to ethanol bled fuel.

I would recommend adding Sta-Bil "ethanol blend" fuel treatment on every fill up.
 I gave up using pump gas on my chainsaws, string trimmers etc. and have switched to "TRU-FUEL" a few years ago. Available at Home Depot, Lowes and most hardware stores. It's more expensive than pump gas, but cheaper than rebuilding/replacing ethanol damaged carbs constantly.

 http://trufuel50.com/

[Strawdawg]

If the line has 30R6 or 30R7 stamped on it, it is made for use with fuels containing ethanol or methanol-Low pressure

If it is labeled 30R9, it is rated for fuel injection use at higher pressures and withstands ethanol or methanol.

If it is labeled 30R10, it is rated for inside the fuel tank and will withstand submersion in fuel

[Racer57]

I to have seen this issue with small engines. There is something to the issue of E15 Fuel. The American Motorcycle Association has some pretty good info about it. I was going to as some links here byt rhere web site is been upgraded at the moment and all the articles are down. I will add them soon as they become available.

E15 is for Flex Fuel designated vehicles the same as E85.

[YellowThumper]

Even though we have been using ethenol based fuel for many years it is different than what car originally used. It has a lower "vapor" point and tends to boil off easier. I'm sure my description is not proper but I personally do not recommend just the steel line. IMOP it should at least be insulated.
If using rubber use what was previously described to get you there.

If using braided line, I believe only the ss braided line can comes with the Teflon insides. I have not found this as an option with the black nylon braided lines. This is what I would prefer but have not seen it available.

Mike

[Strawdawg]

I have looked and not found it and that is what I would also prefer

[Cudakiller70]

Found this on a Google search
PTFE I believe is the same similar to Teflon?
https://www.pegasusautoracing.com/group.asp?GroupID=PLUMANFLEX

[YellowThumper]

Bingo...
And yes PTFE is Teflon.
Teflon is brand name synonymous with it.