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Question: what components make up a well-designed fuel system for FI?

Question: what components make up a well-designed fuel system for FI?

 
Old 07-07-2019, 05:23 PM
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Default Question: what components make up a well-designed fuel system for FI?

Im looking at fuel components to use for a turbo GSR. at the moment its not turboed so this is more of a prep or at least something to have for when i do turbo it. GSR block 84.5mm bore B16 head. looking to get about 25 psi and 500whp at most. im looking at AEM fuel rails with regulators and found a kit that has a 320 lph high flow fuel pump. also tips on what injectors i should be looking at ive heard mixed things on different injectors
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Old 07-08-2019, 04:37 AM
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Default re: Question: what components make up a well-designed fuel system for FI?

What type of fuel?
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Old 07-08-2019, 02:47 PM
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Default re: Question: what components make up a well-designed fuel system for FI?

Originally Posted by 2x0 View Post
What type of fuel?
not e85 if thats more or less what your getting at. but personally i would probalby go with 93
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Old 07-09-2019, 12:26 AM
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Default Re: Question: what components make up a well-designed fuel system for FI?

93 octane and 500whp is going to be tough to make. not saying it cant be done but its hard and the tune has to be spot on
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Old 07-09-2019, 04:00 AM
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Default Re: Question: what components make up a well-designed fuel system for FI?

For 500whp I would go with a Walbro 450 and some 1000cc injectors should get you there on pump 91/93 (assuming you make it to 500 on that gas which I highly doubt). Otherwise you shouldn't need to upgrade your fuel lines or rail. Never a bad idea to upgrade to a nice adjustable FPR such as Aeromotive, and a higher flow filter like Fuelab.

With E85 you would need to upgrade your filter and lines, and run bigger injectors.
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Old 07-09-2019, 05:17 AM
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Default Re: Question: what components make up a well-designed fuel system for FI?

Originally Posted by 2x0 View Post
With E85 you would need to upgrade your filter and lines, and run bigger injectors.
Are you saying upgraded lines as in larger diameter to meet 500 whp for E85, or upgraded lines as in a different material to handle E85? I ask because I'm running stock lines from the tank up to but not including the engine bay on my car, and only have updated the engine bay lines. But, my WHP goal is 400 or less.
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Old 07-09-2019, 05:43 AM
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Default Re: Question: what components make up a well-designed fuel system for FI?

You don't need either in all reality. E85 is definitely harsh if left neglected and can cause significant damage on fuel components. If you're up on your maintenance, you can absolutely run E85 on stock lines/fuel filter.

A lot of people seem to be hesitant on E85 because of this, but you really don't need much at all to run it reliably. Hell, I ran oem lines,filter on used factory S2K injectors for 4 years with no issues.
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Old 07-09-2019, 05:47 AM
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Default Re: Question: what components make up a well-designed fuel system for FI?

E85 supposedly eats away at anything rubber, so you need to run PTFE lines. The disintegrating rubber lines will gum up your fuel filter and/or injectors.

Also, for 400+whp on E85 I would run at least -6 feed lines.
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Old 07-09-2019, 06:02 AM
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Default Re: Question: what components make up a well-designed fuel system for FI?

Originally Posted by 2x0 View Post
E85 supposedly eats away at anything rubber, so you need to run PTFE lines. The disintegrating rubber lines will gum up your fuel filter and/or injectors.

Also, for 400+whp on E85 I would run at least -6 feed lines.
Isn't the stock hard line (feed) equivalent to -6AN? I have heard that the banjo fitting at the hanger eventually becomes a restriction, but not sure at what power level / fuel flow requirement that is at.
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Old 07-09-2019, 06:04 AM
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Default Re: Question: what components make up a well-designed fuel system for FI?

Originally Posted by DaX View Post
Are you saying upgraded lines as in larger diameter to meet 500 whp for E85, or upgraded lines as in a different material to handle E85? I ask because I'm running stock lines from the tank up to but not including the engine bay on my car, and only have updated the engine bay lines. But, my WHP goal is 400 or less.
You're fine. I ran E85 with stock lines up to the engine bay like you're saying with zero issues, stock fuel tank with ID1000's. Daily drove it for years this way making 600whp.

OP if you do run E85 you can easily make 500whp on ID1000's and stock lines.
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Old 07-09-2019, 06:07 AM
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Default Re: Question: what components make up a well-designed fuel system for FI?

Originally Posted by DaX View Post
Isn't the stock hard line (feed) equivalent to -6AN? I have heard that the banjo fitting at the hanger eventually becomes a restriction, but not sure at what power level / fuel flow requirement that is at.
I went with a -8 feed to a -6 return.
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Old 07-09-2019, 06:48 AM
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Default Re: Question: what components make up a well-designed fuel system for FI?

AZ - you're running E98, right? Are you using PTFE lines?
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Old 07-09-2019, 06:50 AM
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Default Re: Question: what components make up a well-designed fuel system for FI?

Originally Posted by DaX View Post
Isn't the stock hard line (feed) equivalent to -6AN? I have heard that the banjo fitting at the hanger eventually becomes a restriction, but not sure at what power level / fuel flow requirement that is at.
I thought -6AN was larger than stock, maybe it depends on what chassis? Also maybe it does have more to do with the size of the AN fittings themselves more than the I.D. of the hose. Idk this is just what I've heard.


Originally Posted by AZ_CIVIC View Post
You're fine. I ran E85 with stock lines up to the engine bay like you're saying with zero issues, stock fuel tank with ID1000's. Daily drove it for years this way making 600whp.

OP if you do run E85 you can easily make 500whp on ID1000's and stock lines.

Pretty sure 1000's will run out before 500whp on E85, unless you are bumping up your fuel pressure. Mine run out in the 400-450 range with a stock FPR.
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Old 07-09-2019, 07:23 AM
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Default Re: Question: what components make up a well-designed fuel system for FI?

Originally Posted by DaX View Post
AZ - you're running E98, right? Are you using PTFE lines?
Yes I am using E98, and I am using PTFE lines however back in the day I used the PTFE lines from my engine bay to a fuel filter to the rail and to a return. All my lines were stock from the engine bay back and ran a stock fuel tank. I mean obviously things have changed on my setup over the years, I know have a 1.9 gallon fuel tank in my engine bay but don't get concerned with E85 unless you are planning on driving the car months at a time.
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Old 07-09-2019, 07:27 AM
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Default Re: Question: what components make up a well-designed fuel system for FI?

Originally Posted by 2x0 View Post
I thought -6AN was larger than stock, maybe it depends on what chassis? Also maybe it does have more to do with the size of the AN fittings themselves more than the I.D. of the hose. Idk this is just what I've heard.





Pretty sure 1000's will run out before 500whp on E85, unless you are bumping up your fuel pressure. Mine run out in the 400-450 range with a stock FPR.
Yes I maxed my ID1000's out at 650whp before I added 4 more and then maxed 8 ID1000's out at about 950whp and now run 8 ID2000's. ID1000's and an adjustable FRP, you will be fine with 500whp.
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Old 07-09-2019, 08:08 AM
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Default Re: Question: what components make up a well-designed fuel system for FI?

Originally Posted by 2x0 View Post
I thought -6AN was larger than stock, maybe it depends on what chassis? Also maybe it does have more to do with the size of the AN fittings themselves more than the I.D. of the hose. Idk this is just what I've heard.
Yeah maybe so. Pushing more power will always show you where the bottleneck is regarding the fuel system. I'm not up and running yet, so fingers crossed I've got all the bottlenecks cleared for hitting my goals.

Originally Posted by AZ_CIVIC View Post
Yes I am using E98, and I am using PTFE lines however back in the day I used the PTFE lines from my engine bay to a fuel filter to the rail and to a return. All my lines were stock from the engine bay back and ran a stock fuel tank. I mean obviously things have changed on my setup over the years, I know have a 1.9 gallon fuel tank in my engine bay but don't get concerned with E85 unless you are planning on not driving the car months at a time.
Correction above correct? Yeah, I'm not sweating it for now...if I end up having the car down for months I'll just flush everything out with E10.
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Old 07-09-2019, 09:07 AM
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Default Re: Question: what components make up a well-designed fuel system for FI?

Originally Posted by AZ_CIVIC View Post
Yes I maxed my ID1000's out at 650whp before I added 4 more and then maxed 8 ID1000's out at about 950whp and now run 8 ID2000's. ID1000's and an adjustable FRP, you will be fine with 500whp.
Im surprised you reached those power levels with 1000ccs , im guessing you raised the baseline fuel pressure? Im already close to 50% duty on my 2200s
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Old 07-09-2019, 09:36 AM
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Default Re: Question: what components make up a well-designed fuel system for FI?

Originally Posted by turboLScrx View Post
Im surprised you reached those power levels with 1000ccs , im guessing you raised the baseline fuel pressure? Im already close to 50% duty on my 2200s
Yes I raised my baseline fuel pressure and was pretty much maxed out on duty. I ran that way for about a year and was good, I then swapped to an 8 injector manifold and went with 8 ID1000's.
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Old 07-09-2019, 03:07 PM
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Default Re: Question: what components make up a well-designed fuel system for FI?

Originally Posted by DaX View Post
Isn't the stock hard line (feed) equivalent to -6AN? I have heard that the banjo fitting at the hanger eventually becomes a restriction, but not sure at what power level / fuel flow requirement that is at.
On our EG chassis, -6AN is larger than the stock hard lines. The AN hose fits pretty loosely over the hard line.
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Old 07-09-2019, 03:53 PM
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Default Re: Question: what components make up a well-designed fuel system for FI?

Originally Posted by Txdragon View Post
On our EG chassis, -6AN is larger than the stock hard lines. The AN hose fits pretty loosely over the hard line.
For sure on the return line, but I never tried one over the feed line and thought it was equivalent. I learned something today!
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Old 07-09-2019, 04:27 PM
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Default Re: Question: what components make up a well-designed fuel system for FI?

Originally Posted by DaX View Post
For sure on the return line, but I never tried one over the feed line and thought it was equivalent. I learned something today!
I had to improvise on mine when the silly conversion fitting was leaking.. I fit the hose over the feed and had to use 3 clamps to keep it secure. Lol! Crude, but effective.
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Old 07-11-2019, 06:25 PM
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Default Re: Question: what components make up a well-designed fuel system for FI?

My buddy runs his turbo integra on stock lines with E85 no issues. I want to share this link in case anyones interested.


https://www.alternativeperformanceeng.com/
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Old 07-11-2019, 07:31 PM
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Default Re: Question: what components make up a well-designed fuel system for FI?

Originally Posted by wunfstgsr View Post
My buddy runs his turbo integra on stock lines with E85 no issues. I want to share this link in case anyones interested.


https://www.alternativeperformanceeng.com/
Interesting. Wonder how that controller may work with systems like Hondata, Neptune, etc..
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Old 07-11-2019, 08:27 PM
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Default Re: Question: what components make up a well-designed fuel system for FI?

though hondata already has flex sensor capability's? don't know on Neptune.
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Old 07-12-2019, 03:30 AM
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Default Re: Question: what components make up a well-designed fuel system for FI?

Originally Posted by BoostHatchFreak View Post
though hondata already has flex sensor capability's? don't know on Neptune.
Neptune does, yes.
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