Well, all of Sunoco's race gases contain MTBE. I did a quick search on the internet. MTBE came into widespread use in the early 90's, so my guess is that any rubber fuel line produced today in the US is compatible with it. If you want to get real adventureous, see if you can get a hold of either SAE J30R9 for fuel injected hose or SAE J30 or SAE J30R7 for non-injected hose. Those should tell you. Or see if you can get a hold of someone at Dayco or Gates or Goodyear who can tell you. Or call 800-RACEGAS (sunoco) and ask them if they know. I bet it's okay.
Fuel Lines
- Thread starter patbarry
- Start date
Rick Merz
Lifetime Supporter
Peter do you know if the GT40's that caught on fire were because of fuel venting off of the Webber carbs or from leaking fuel lines? I would think that the fires were from fuel vapors venting from the Webber carbs then when the car was started (after being driven and sitting for a short while), a backfire could ignite the fuel vapors causing an engine fire. All of my fuel, oil lines and fittings are Aeroquip and I haven't had a leaking line or fitting yet. I did have a brief engine fire when I drove my car to Hooters for lunch on a 100° day and when I started my car I had a backfire (Fuel bowls weren't completely full), and the top of my carbs caught on fire. I bet that you didn't know that a 225lb man can grab a fire ext, get out of a GT40, open the rear bonnet and put out a fire in 10 sec. (of course getting the @#%* out of my pants took a little longer /ubbthreads/images/graemlins/blush.gif).
Just a quick update on what I have found regarding braided fuel lines and MTBE. I re-plumbed my GTD system using hard lines from the tanks thru the pressure regulator and to the pressure guage. I now only had to use a flexible line to the Holley carb. I bought 3 feet of Aeroquip #6 teflon line but ran into a problem. The line is a smaller diameter than normal rubber braided line and requires special fittings. Unfortunately they don't make a banjo fitting for teflon and this is what I require to clear everything. On checking further with the Aero distr. and the local speed shop (Vic Hubbard) I was assured that the major hose companies reformulated the rubber now used in the braided lines and they have had no troubles with this newer material. As my last set of Aeroquip lasted from 1991 until this year, I decided to give them another shot. Last line goes in tomorrow and I should be running shortly after.
Good luck. You may also have been able to use a banjo to AN fitting then a AN style hose end. Just a thought.
Gary
Gary
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