Single Turbo RX-7's Questions about all aspects of single turbo setups.

Hard Line fuel setup - check this jazz out - Pretty sweet!

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Old Jan 3, 2008 | 11:01 PM
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Hard Line fuel setup - check this jazz out - Pretty sweet!




Done by ARIZONA ROTARY ROCKETS - www.azrotaryrockets.com

Setup comes in Black, Red, Blue, and Silver... I chose blue... because well... I like blue?

Used with a Mallory Reg - pretty nice setup IMO.

There is no movement in the lines, they will not crack or dry out ever, they will not rub through any other lines or wires, this is a system that will last like the OEM setup.

Consistent fuel pressure. The way we have the inlet split to both primary and secondary will ensure consistent pressure. A typical fuel system run serial could potentially see a pressure difference between the first and the 4th injector. Serially there are never more than 2 injectors in the setup to reduce this possible risk.

Perhaps in the future if anyone is interested in a similar setup then I would suggest contacting AZRR.

I just wanted to show it off to a couple of you fab turds haha, it is one sleek setup IMO with a lot of potential and benefits.

These guys are coming up with designs left and right... glad to say I'll be using this setup!

Last edited by dhahlen; Jan 3, 2008 at 11:19 PM.
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Old Jan 3, 2008 | 11:13 PM
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Oh man! That setup would look great in black.
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Old Jan 4, 2008 | 12:10 AM
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I want to see how it performs over time. Looks really nice, and I'd get it in black also!
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Old Jan 4, 2008 | 01:30 AM
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I'd question if this is safe?
All the literature on aluminum (it looks like Al?) hard lines is that it is not recommended for fuel injection.
Even the Russells stuff, which is rated to250psi, explicitly states it's only for carbs.

Why?
Maybe the higher pressures and pulsation actually work harden the aluminum like to the point it'll fail?
I've always wondered...

It definitely is a LOT cheaper than SS AN hose!


-Ted
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Old Jan 4, 2008 | 08:22 AM
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Originally Posted by RETed
I'd question if this is safe?
All the literature on aluminum (it looks like Al?) hard lines is that it is not recommended for fuel injection.
Even the Russells stuff, which is rated to250psi, explicitly states it's only for carbs.

Why?
Maybe the higher pressures and pulsation actually work harden the aluminum like to the point it'll fail?
I've always wondered...

It definitely is a LOT cheaper than SS AN hose!


-Ted
Ted,

It's perfectly safe. As the design was crafted in conjunction with a well known fuel / performance shop here in Arizona. THe company does a lot of custom fuel work and pump designs etc.... as well as cleaning and all that stuff. Rest assured the system is perfectly safe.
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Old Jan 4, 2008 | 09:38 AM
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I've got to give it up to AZRR, thats a pretty sweet setup. I still like mine though
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Old Jan 4, 2008 | 09:42 AM
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Originally Posted by RETed
I'd question if this is safe?
All the literature on aluminum (it looks like Al?) hard lines is that it is not recommended for fuel injection.
Even the Russells stuff, which is rated to250psi, explicitly states it's only for carbs.

Why?
Maybe the higher pressures and pulsation actually work harden the aluminum like to the point it'll fail?
I've always wondered...

It definitely is a LOT cheaper than SS AN hose!


-Ted

Good question, as you mentioned the line will with stand 250psi, as far as the statement about "only for carb use" I could not find this statement on the Russell's site, either way, We have Fuel system engineers from a notible fuel system company that is partnered with us, to assure us that this system will not fail. I think that the point behind the "carb" statement for some manufacturers is not to use this for the whole system from pump to rail, pretty long tubing, we have used this in short lengths that will withstand more than we can throw at it. Many fuel systems from hot rod builders to oem build high pressure systems using this aluminum line. One other cool thing about this system is its fuel distribution, we split the feed and t the system for front and rear fuel distribution giving a even and consistent pressure to each "bank" of injectors if you will.

Oh, check out this http://www.russellperformance.com/mc/fuel/lines.shtml in fact if you read there high lights of the aluminum line you will see they in fact say this can be used in just about any fuel system. Really there whole statement is a bit misleading. I think they just want to sell more ss line.

Thanks all, and thanks Darren for posting this, yours will be ready in a couple of days
- Show quoted text -
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Old Jan 4, 2008 | 09:45 AM
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Originally Posted by fdeeznutz
I've got to give it up to AZRR, thats a pretty sweet setup. I still like mine though
Wow, man that still looks sweet but my fingers are still bleeding after building that system.
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Old Jan 4, 2008 | 09:51 AM
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Ha ha, sorry Glen!
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Old Jan 8, 2008 | 11:40 PM
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Originally Posted by dhahlen

Consistent fuel pressure. The way we have the inlet split to both primary and secondary will ensure consistent pressure. A typical fuel system run serial could potentially see a pressure difference between the first and the 4th injector. Serially there are never more than 2 injectors in the setup to reduce this possible risk.
I think you mean the "typical" fuel system is in Series, but having both rails with there own inlets & outlets means they are running in Parallel.

And I hate to say this but will the rotary even last that long to worry about rubber hoses cracking? lol To each his own, but this is a pricey setup IMO.
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Old Jan 9, 2008 | 07:41 AM
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how much are we looking for a set up like this ?
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Old Jan 11, 2008 | 09:30 AM
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Don't quote me, but I'm pretty sure I heard glen say it was going to be priced similar to a braided ss setup...
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Old Jan 11, 2008 | 10:55 AM
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Very nice.
Crispy
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Old Jan 13, 2008 | 10:21 AM
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Updated our site with more fuel system pictures and information.

www.azrotaryrockets.com
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Old Feb 12, 2008 | 12:49 PM
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Originally Posted by RETed
I'd question if this is safe?
All the literature on aluminum (it looks like Al?) hard lines is that it is not recommended for fuel injection.
Even the Russells stuff, which is rated to250psi, explicitly states it's only for carbs.

Why?
Maybe the higher pressures and pulsation actually work harden the aluminum like to the point it'll fail?
I've always wondered...

I believe it is relatively unsafe to use aluminum hard line as a fuel line because aluminum tends to harden with "use" and form cracks. The fuel lines can vibrate and this can cause it to flex and harden over time. Eventually, cracks can form and failure can result in disastrous results.

The recommendation is to isolate the hard aluminum line from vibration and movement.
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Old Feb 12, 2008 | 07:42 PM
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Originally Posted by Mr. Stock
I believe it is relatively unsafe to use aluminum hard line as a fuel line because aluminum tends to harden with "use" and form cracks. The fuel lines can vibrate and this can cause it to flex and harden over time. Eventually, cracks can form and failure can result in disastrous results.

The recommendation is to isolate the hard aluminum line from vibration and movement.
Yeah, this is what I was thinking about too...
I know the problem with work-hardening with aluminum, so this is why I shy'd away from it.
I just got a shitload of -12 fuel line, so that takes care of that problem.


-Ted
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Old Feb 12, 2008 | 09:20 PM
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Originally Posted by RETed
Yeah, this is what I was thinking about too...
I know the problem with work-hardening with aluminum, so this is why I shy'd away from it.

I just got a shitload of -12 fuel line, so that takes care of that problem.

-Ted
WTF are you going to do with -12 fuel line. Does your car have a jet engine?!
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Old Feb 12, 2008 | 09:57 PM
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Got for real cheap, so I can't complain?
We gotta do a 20B, so it's primarily for that car.


-Ted
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Old Feb 21, 2008 | 01:38 PM
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i thought I was going big with -8...
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Old Feb 21, 2008 | 11:38 PM
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Here's what the final damage came out to be...

A little over 130 feet of -12 SS braided fuel hose for under $200 shipped to my door in Hawaii.
Can you really complain for that price?

I've got an SX fuel pump sitting in my room, and I didn't realize this thing flows like 120gph.
That like enough fuel for around 800hp!
The -12 stuff might actually be needed for a pump like this.
It's all basically going to go on the 20B car...


-Ted
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Old Feb 22, 2008 | 06:33 AM
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That is cheap as hell but its still overkill for even 1000 . Your gonna get raped on fittings lol. Sell that **** and get some 8!
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Old Feb 26, 2008 | 11:46 AM
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Originally Posted by Mr. Stock
I believe it is relatively unsafe to use aluminum hard line as a fuel line because aluminum tends to harden with "use" and form cracks. The fuel lines can vibrate and this can cause it to flex and harden over time. Eventually, cracks can form and failure can result in disastrous results.

The recommendation is to isolate the hard aluminum line from vibration and movement.
http://russellperformance.com/mc/fuel/lines.shtml

Says its rated to 250psi.

If your fuel system exceeds that, then I just don't know what to say.
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Old Feb 26, 2008 | 11:49 AM
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-12 for fuel is pointless. I've seen 700hp on -6, and well over 1000 on -8. If you were shooting for 4000hp, I could see -12 being used, rofl.
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Old Feb 26, 2008 | 01:37 PM
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I'm using all -10, because it's very manly.
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Old Feb 26, 2008 | 01:45 PM
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Originally Posted by Viking War Hammer
I'm using all -10, because it's very manly.
Well if that's not a good reason I don't know what is lol.
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