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E85 800-1000hp Fuel System Setups

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Old Dec 20, 2011 | 01:23 PM
  #46  
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Originally Posted by Freddie@Spec-Ops
What about using the evap line and run lines from each pump straight up to the engine bay, then use a wye fitting with two -6an to a -8an into an -8an fuel filter then to the rail? As Dave suggested, make sure the Walbros are modded, if not pressure will drop off big time, especially since you are running 40+ psi...
We did that already, that was our dual feed system that we offered.
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Old Dec 20, 2011 | 01:25 PM
  #47  
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I've got 3/8" stainless steel line on my car, just the feed line. I wouldn't run any AN type line on a street car the entire length of the car again. The hose eventually leaks and fails. 3/8" is close to -6 AN and is enough line for over 1,000 hp.
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Old Dec 20, 2011 | 02:42 PM
  #48  
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From: Upstate NY
Originally Posted by David Buschur
I've got 3/8" stainless steel line on my car, just the feed line. I wouldn't run any AN type line on a street car the entire length of the car again. The hose eventually leaks and fails. 3/8" is close to -6 AN and is enough line for over 1,000 hp.
Just to clarify, I think David is talking about braided line when referring to leaks. I agree with him that most of the lower end braided is junk for fuel. However, you guys won't have any leaking issues with Aeroquip Socketless. It's not braided (that's besides the point), easy to terminate and is rated for ethanol.
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Old Dec 20, 2011 | 03:13 PM
  #49  
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From: milwaukee, wi
on my sti i only ran a total of 6' of summit braided like and the smell was terrible on hot days, especially when i had a tank of q16.
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Old Dec 20, 2011 | 03:26 PM
  #50  
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From: milwaukee, wi
Originally Posted by TurboTravis
Just to clarify, I think David is talking about braided line when referring to leaks. I agree with him that most of the lower end braided is junk for fuel. However, you guys won't have any leaking issues with Aeroquip Socketless. It's not braided (that's besides the point), easy to terminate and is rated for ethanol.
i use the socketless at work a lot and it does break down and crack after a few years, and we run only low voc coatings thru it. stainless tube or teflon are about the only thing that really work well.
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Old Dec 20, 2011 | 06:10 PM
  #51  
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Yes, I was having a brain fart and couldn't think of "braided" for some reason. Doing the rigid stainless line I did was tougher than using braided hose but it is on the car and will be there for 50 years.
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Old Dec 20, 2011 | 06:44 PM
  #52  
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From: Fayetteville,NC
Originally Posted by David Buschur
We did that already, that was our dual feed system that we offered.
Correct which is why I was mentioning it... he pretty much has everything to make it work, unless he wanted to use AN lines... How much of a difference do you think it would make in system capacity to unilize the dual lines up to the engine bay?
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Old Dec 20, 2011 | 07:47 PM
  #53  
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From: Upstate NY
Originally Posted by n2oiroc
i use the socketless at work a lot and it does break down and crack after a few years, and we run only low voc coatings thru it. stainless tube or teflon are about the only thing that really work well.
There are different grades of the Aeroquip Socketless. I've seen zero issues with Ethanol and the street cars that I've built that use the grade of Socketless that Summet/Jegs sells.

Originally Posted by Freddie@Spec-Ops
Correct which is why I was mentioning it... he pretty much has everything to make it work, unless he wanted to use AN lines... How much of a difference do you think it would make in system capacity to unilize the dual lines up to the engine bay?
Assuming that the stock fuel feed like is 5/16"ID, and the vent line is 1/4" ID, the flow capablities of those two lines together is only going to be slightly greater than a single 3/8" ID line. If I'm wrong on either one of those lines (the stock feed or vent ID's), and they are smaller, than the single 3/8" ID line will flow more than the both of them together.
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Old Dec 20, 2011 | 09:46 PM
  #54  
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From: Fayetteville,NC
I think they are both 5/16"...
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Old Dec 20, 2011 | 10:38 PM
  #55  
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From: Upstate NY
Originally Posted by Freddie@Spec-Ops
I think they are both 5/16"...
I'd have to check. Either way It's a much neater job to do your Y/filter at the back of the car vs. the front.

You guys are just going to have to trust David and I that -6 is more than enough.
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Old Dec 21, 2011 | 07:02 AM
  #56  
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Like I said, we used the return line in our dual feed kit we sold. The kit was a PITA to put together so I simply quit offering it. My car on gasoline and our double pumper with 1200cc injectors ran 9.0 at 159, that was with the single factory line.

I ran the twin lines at some point and the IDC's dropped quit a bit. I wanted a cleaner set up and went to the single 3/8" line. Duty cycle's are in the 80% range on 2000 cc injectors, our twin pumps and 700+ whp on our dyno.
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Old Dec 21, 2011 | 08:55 AM
  #57  
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From: Fayetteville,NC
Thanks for the info Dave...
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Old Dec 21, 2011 | 10:02 AM
  #58  
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From: Upstate NY
inadvertent post

Last edited by TurboTravis; Dec 21, 2011 at 11:12 AM. Reason: inadvertent post
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Old Dec 21, 2011 | 10:05 AM
  #59  
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From: Upstate NY
Freddy if you're bound and determined to use the factory stuff, get the IDs for me and I'll lay out the math for you

Last edited by TurboTravis; Dec 21, 2011 at 11:12 AM.
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Old Dec 21, 2011 | 03:01 PM
  #60  
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From: Fayetteville,NC
Travis, im not... I don't plan on doing anything else with my car and I am not where close to being maxed out... I was just asking dave since he has done it and id he says IDC dropped a bit that tells me it worked...
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