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Old 04-14-2014, 05:43 PM   #136
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Default Re: The New Holley Dominator Fuel Pump 12-1800

Great thread, I have one showing up this week!
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Old 04-15-2014, 11:52 PM   #137
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Default Re: The New Holley Dominator Fuel Pump 12-1800

I am seriously considering dumping the a1000 and running this pump instead. Great thread with lots of really good feedback
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Old 04-16-2014, 03:35 AM   #138
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Default Re: The New Holley Dominator Fuel Pump 12-1800

I'll be running two on my car. Let me know if I can help you guys.
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Old 05-02-2014, 09:48 PM   #139
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Default Re: The New Holley Dominator Fuel Pump 12-1800

What Holley reg has two inlets and 1 outlet that you guys are running?I am fixing to order the 12-1800 pump and hit a y to feed both rails but i do not see one listed on their website and the wait time is terrible to talk to them.I know aeromotive and fuel lab both have one but dont see a holley listed.
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Old 05-02-2014, 10:36 PM   #140
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Default Re: The New Holley Dominator Fuel Pump 12-1800

You can plumb the Holley 12-848 so that one rail enters the "inlet", one rail enters the "outlet", and the return is common.
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Old 05-04-2014, 12:58 PM   #141
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Default Re: The New Holley Dominator Fuel Pump 12-1800

anybody use a boost-a-pump with these holley 12-1800s? i have a ls 390/billet s480 with race cover, 127s, this pump and and e85, and want to make 1000 rwhp. made 801 rwhp with the same combo except had 96lb injectors, 17psi on e85 and 90% dc.

Last edited by dmaxvaz; 05-04-2014 at 01:03 PM.
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Old 05-04-2014, 01:16 PM   #142
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Default Re: The New Holley Dominator Fuel Pump 12-1800

Quote:
Originally Posted by dmaxvaz View Post
anybody use a boost-a-pump with these holley 12-1800s? i have a ls 390/billet s480 with race cover, 127s, this pump and and e85, and want to make 1000 rwhp. made 801 rwhp with the same combo except had 96lb injectors, 17psi on e85 and 90% dc.
Holley's literature says the pump is good to 18.5 volts.
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Old 05-04-2014, 08:09 PM   #143
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Default Re: The New Holley Dominator Fuel Pump 12-1800

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Originally Posted by Honk if parts fall off View Post
Holley's literature says the pump is good to 18.5 volts.
i understand that, just asking if anyone used a boost-a-pump on these pumps, and how's it working out?
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Old 05-05-2014, 02:00 PM   #144
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Default Re: The New Holley Dominator Fuel Pump 12-1800

Would I run into any problems if the pump is mounted a little higher than my sump? I have a 69 nova with a factory style take with a sump. I was going to mount it on the floor area right behind the take (right in front of the bumper). Will this be ok?

Thanks Al.
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Old 05-05-2014, 06:13 PM   #145
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Default Re: The New Holley Dominator Fuel Pump 12-1800

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Originally Posted by bigd427w View Post
You can plumb the Holley 12-848 so that one rail enters the "inlet", one rail enters the "outlet", and the return is common.
So this 12 -848 reg can be run like that without issues? What about the 12-846 reg can it be run the same way?
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Old 06-06-2014, 01:17 AM   #146
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Default Re: The New Holley Dominator Fuel Pump 12-1800

Bumping this.
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Old 06-10-2014, 03:41 AM   #147
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Default Re: The New Holley Dominator Fuel Pump 12-1800

how are you guys mounting the filters to the pump? Do they make a straight -12 to straight -10
Also has anyone ever had problems with second side not coming on? I have thought about running them together don't plan on much street driving, maybe 15 miles one way couple times a month.
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Old 06-10-2014, 07:01 AM   #148
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Default Re: The New Holley Dominator Fuel Pump 12-1800

aeromotive makes a straight -12 orb to -10 orb union..its a bitch to find though when searching..i priced it with the reducers and using hose between and it came up to the same amount as just buying 2 of the fittings below and just connecting the pre,pump and after filter as one.

here you go
http://www.jegs.com/i/Aeromotive/027...rentProductId=
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Old 06-10-2014, 09:10 AM   #149
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Default Re: The New Holley Dominator Fuel Pump 12-1800

I'm sure race part solution has that fitting too. Prolly cheaper.
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Old 06-10-2014, 10:10 AM   #150
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Default Re: The New Holley Dominator Fuel Pump 12-1800

Quote:
Originally Posted by 1986iroc View Post
how are you guys mounting the filters to the pump? Do they make a straight -12 to straight -10
Also has anyone ever had problems with second side not coming on? I have thought about running them together don't plan on much street driving, maybe 15 miles one way couple times a month.
I use a "radius pump fitting". 1 side is a male ORB, the other is male JIC 37*, but the JIC end has a grove for an AN o-ring.

You could just use a normal male to male union and us AN o-rings. The radius fitting is a little friendlier to flow.
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