Home  |  Forums  |  914 Info  |  Blogs
 
914World.com - The fastest growing online 914 community!
 
Porsche, and the Porsche crest are registered trademarks of Dr. Ing. h.c. F. Porsche AG. This site is not affiliated with Porsche in any way.
Its only purpose is to provide an online forum for car enthusiasts. All other trademarks are property of their respective owners.
 

Welcome Guest ( Log In | Register )

> Ethanol Rated Fuel Lines
kbrunk1
post Jul 31 2012, 07:26 PM
Post #1


Brunk
**

Group: Members
Posts: 180
Joined: 13-November 11
From: Dallas,Texas 73 2.0 FI
Member No.: 13,778
Region Association: South East States
Was replacing all the fuel lines.

What brand or things do you look for to make sure it can handle ethanol.

2.0L FI 1973 moving to front and have 8mm stainless down the tunnel.

Do the newer rubber lines have a stamped marking?
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
2 Pages V  1 2 >  
 Reply to this topicStart new topic
Replies(1 - 19)
TheCabinetmaker
post Jul 31 2012, 07:36 PM
Post #2


I drive my car everyday
*****

Group: Members
Posts: 8,300
Joined: 8-May 03
From: Tulsa, Ok.
Member No.: 666
We used to use Goodyear 30r, but there are several now that are high pressure, and compatible with all fuels. i use coline. Be sure to use the high pressure band clamps.some are marked. Yes.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Black22
post Jul 31 2012, 07:38 PM
Post #3


Senior Member
***

Group: Members
Posts: 886
Joined: 1-November 07
From: Creswell, OR
Member No.: 8,290
Region Association: Pacific Northwest
QUOTE(The Cabinetmaker @ Jul 31 2012, 06:36 PM) *

We used to use Goodyear 30r

30r9
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
JawjaPorsche
post Jul 31 2012, 07:40 PM
Post #4


Advanced Member
****

Group: Members
Posts: 3,463
Joined: 23-July 11
From: Clayton, Georgia
Member No.: 13,351
Region Association: South East States
I got my hoses from NAPA plus fuel injector clamps. Ethanol will still eat up your hoses so check them regularly. If you can find a gas station that sells 100%, so much the better.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
SLITS
post Jul 31 2012, 07:41 PM
Post #5


"This Utah shit is HARSH!"
**********

Group: Benefactors
Posts: 13,602
Joined: 22-February 04
From: SoCal Mountains ...
Member No.: 1,696
Region Association: None
Goodyear SAE 30R9 . Good luck finding it. I bought two 25' rolls (3/8" & 5/16") Cost was $250. It used to have a blue liner, but they had trouble with it rolling back when installed. It's now black. It's for our lovely ethanol based fuels.

Don't know if anyone else markets SAE 30R9.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Mike Bellis
post Jul 31 2012, 07:42 PM
Post #6


Resident Electrician
*****

Group: Members
Posts: 8,345
Joined: 22-June 09
From: Midlothian TX
Member No.: 10,496
Region Association: None
Anything that is CARB certified or legal for EFI in California will work.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
SLITS
post Jul 31 2012, 07:44 PM
Post #7


"This Utah shit is HARSH!"
**********

Group: Benefactors
Posts: 13,602
Joined: 22-February 04
From: SoCal Mountains ...
Member No.: 1,696
Region Association: None
QUOTE(kg6dxn @ Jul 31 2012, 06:42 PM) *

Anything that is CARB certified or legal for EFI in California will work.


And you believe the gubermint pukes? (IMG:style_emoticons/default/biggrin.gif)
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
JStroud
post Jul 31 2012, 08:03 PM
Post #8


Senior Member
***

Group: Members
Posts: 1,463
Joined: 15-January 11
From: Galt, California
Member No.: 12,594
Region Association: Northern California
QUOTE(SLITS @ Jul 31 2012, 06:41 PM) *

Goodyear SAE 30R9 . Good luck finding it. I bought two 25' rolls (3/8" & 5/16") Cost was $250. It used to have a blue liner, but they had trouble with it rolling back when installed. It's now black. It's for our lovely ethanol based fuels.

Don't know if anyone else markets SAE 30R9.



I just bought a 25' roll of 5/16" 30r9 from amazon 106.00 shipped.

Jeff
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
McMark
post Jul 31 2012, 08:36 PM
Post #9


914 Freak!
***************

Group: Retired Admin
Posts: 20,179
Joined: 13-March 03
From: Grand Rapids, MI
Member No.: 419
Region Association: None
I just looked into all this and agree with above. But one thought that I had while doing research was that the "Not for fuel injection" hose has a working pressure of 50 psi and a burst pressure in the range of 100psi. I can understand why the manufacturer would print that on there (cover their asses), but since our system runs well below the working pressure of the carb line, why shouldn't we save money and use it?
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Bartlett 914
post Aug 1 2012, 05:09 AM
Post #10


Advanced Member
****

Group: Members
Posts: 2,216
Joined: 30-August 05
From: South Elgin IL
Member No.: 4,707
Region Association: Upper MidWest
I recently found 30r9 at advance auto (a local flaps) very reasonable price. NAPA did not have it
User is online!Profile CardPM
Go to the top of the page
+Quote Post
ChrisFoley
post Aug 1 2012, 06:30 AM
Post #11


I am Tangerine Racing
*****

Group: Members
Posts: 7,925
Joined: 29-January 03
From: Bolton, CT
Member No.: 209
Region Association: None
QUOTE(McMark @ Jul 31 2012, 09:36 PM) *

I just looked into all this and agree with above. But one thought that I had while doing research was that the "Not for fuel injection" hose has a working pressure of 50 psi and a burst pressure in the range of 100psi. I can understand why the manufacturer would print that on there (cover their asses), but since our system runs well below the working pressure of the carb line, why shouldn't we save money and use it?

In my experience, the pressurized fuel causes the hoses to soften and swell in only a few months time. After seeing that, I won't even use it for carbs.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
McMark
post Aug 1 2012, 10:05 AM
Post #12


914 Freak!
***************

Group: Retired Admin
Posts: 20,179
Joined: 13-March 03
From: Grand Rapids, MI
Member No.: 419
Region Association: None
With Goodyear 30R9? They have a low pressure and a high pressure of the ethanol safe line.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
nathansnathan
post Aug 1 2012, 11:01 AM
Post #13


Senior Member
***

Group: Members
Posts: 1,052
Joined: 31-May 10
From: Laguna Beach, CA
Member No.: 11,782
Region Association: None
30r9 is the SAE rating for the high pressure. 30r7 is the equivalent low pressure version. They have a flourolastemer (sp) (like silicone) lining. I bought some of the low pressure stuff in 3/8 for maybe $60 for 25'. It's too bad the EU doesn't have such crappy gas or we could get it in metric.

I wonder what they use in Brazil? ... nevermind (IMG:style_emoticons/default/beerchug.gif)
(IMG:http://www.914world.com/bbs2/uploads_offsite/images.thesamba.com-11782-1343840517.1.jpg)
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
ChrisFoley
post Aug 1 2012, 11:13 AM
Post #14


I am Tangerine Racing
*****

Group: Members
Posts: 7,925
Joined: 29-January 03
From: Bolton, CT
Member No.: 209
Region Association: None
30R7 doesn't have the lining AFAIK.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
nathansnathan
post Aug 1 2012, 11:55 AM
Post #15


Senior Member
***

Group: Members
Posts: 1,052
Joined: 31-May 10
From: Laguna Beach, CA
Member No.: 11,782
Region Association: None
QUOTE(Racer Chris @ Aug 1 2012, 10:13 AM) *

30R7 doesn't have the lining AFAIK.


dammit you're right, it's just Nitrile, good thing I've put off installing it.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
McMark
post Aug 1 2012, 12:18 PM
Post #16


914 Freak!
***************

Group: Retired Admin
Posts: 20,179
Joined: 13-March 03
From: Grand Rapids, MI
Member No.: 419
Region Association: None
Ahhhh, apparently I misunderstood the specs, or they're different for the Gates Barricade hose. I probably will never use the low-pressure line, but I will always wonder since the Gates Barricade line indicates it's the same construction quality (NOT 30R7) which implies the fuel injection line is simply better rated for pressure. Oh well. It's not like we're even talking about a worthwhile cost savings.


https://www.youtube.com/watch?v=0GZxw7hwR6k
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
ape914
post Aug 1 2012, 12:48 PM
Post #17


red locktite
**

Group: Retired Members
Posts: 240
Joined: 7-February 11
From: In front of a computer
Member No.: 12,676
Region Association: None
QUOTE(nathansnathan @ Aug 1 2012, 10:01 AM) *

30r9 is the SAE rating for the high pressure. 30r7 is the equivalent low pressure version. They have a flourolastemer (sp) (like silicone) lining. I bought some of the low pressure stuff in 3/8 for maybe $60 for 25'. It's too bad the EU doesn't have such crappy gas or we could get it in metric.

I wonder what they use in Brazil? ... nevermind (IMG:style_emoticons/default/beerchug.gif)
(IMG:http://www.914world.com/bbs2/uploads_offsite/images.thesamba.com-11782-1343840517.1.jpg)





Actually 30R7 and 30R9 are different mainly in that 30R9 is lined to resist the oxygenated fuels, 30R7 is not. these ratings are by the SAE (Society of Automotive Engineers)

30R9 also has a considerably lower permiability to gasoline than 30R7 i think it was something like over thirty times less permiable to gasoline vapours. Hence 30R7 is not allowed to be used as a replacement on newer smog controlled cars. use of 30r9 reduces the hydrocarbon smog problem. even when a car is just sitting, it is polluting by outgassing of the fuel. 30r9 reduces the hoses role as a source for this pollution.

30R7 will degrade in high oxygenated gasoline. 30R7 used to be specified for FI pressures. now we are starting to see 30R7 marked as unsafe for FI pressures. that is because the new fuels will weaken 30R7 over long exposures and can cause it to fail at high pressure.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
patssle
post Aug 2 2012, 03:14 PM
Post #18


Senior Member
***

Group: Members
Posts: 981
Joined: 28-August 09
From: Houston, TX
Member No.: 10,741
Region Association: None
I've had this same problem, but for my jet skis. Rebuilding the carbs on my 1995 Seadoo and been trying to find affordable fuel hose. Ugh!

I have found this and Gates is a big manufacturer: http://images.oreillyauto.com/parts/img/do...ricade4page.pdf

Haven't bought it, but found it cheap on Amazon - reseller has good reviews. (for carbs - this size is 1/4") http://www.amazon.com/Gates-Rubber-Company...e/dp/B00498CX2M
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
damesandhotrods
post Aug 2 2012, 05:35 PM
Post #19


Senior Member
***

Group: Members
Posts: 568
Joined: 26-September 10
From: Santa Cruz California
Member No.: 12,218
Region Association: Northern California
Maybe there’s light at the end of the tunnel.

Salon.Com
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
benalishhero
post Aug 2 2012, 05:43 PM
Post #20


Member
**

Group: Members
Posts: 313
Joined: 28-November 07
From: Portland, Maine
Member No.: 8,384
Region Association: North East States
FWIW, I have been using Gates hose rated for EFI in E10 land for a number of years no problem....
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
« Next Oldest · 914World Garage · Next Newest »
 

2 Pages V  1 2 >
Reply to this topicStart new topic
1 User(s) are reading this topic (1 Guests and 0 Anonymous Users)
0 Members:

 

Display Mode: Switch to: Standard · Linear+ · Switch to: Outline

Track this topic · Email this topic · Print this topic · Subscribe to this forum

- Lo-Fi Version Time is now: 17th May 2024 - 02:14 PM
Invision Power Board v9.1.4 © 2024  IPS, Inc.
All rights reserved 914World.com © since 2002
914World.com is the fastest growing online 914 community!
We have it all, classifieds, events, forums, vendors, parts, autocross, racing, technical articles, events calendar, newsletter, restoration, gallery, archives, history and more for your Porsche 914 ...