Holley's Hydramat is now shipping - fuel starve solution?

phunk · 01-11-2017, 12:27 PM

Quote:

Originally Posted by gsjohnson08

I am really looking into getting this kit to prevent starvation issues at Mid-Ohio. My car is a DD with occasional track use and I am just wondering, on quarter tank of fuel or less on the road, say turning left to get onto the highway and then cruising down a straight highway, would this new pump starve and get ruined because all the fuel is to the passenger area and can't get above the hump? Interested to hear your opinion, Phunk.

Yes any pump on the driver side of the tank used on the street under any conditions will be starving constantly unless you keep the tank over half full or turn it off.

Wonka2581 · 01-11-2017, 12:47 PM

Sub'd

gsjohnson08 · 01-11-2017, 01:27 PM

Quote:

Originally Posted by phunk

Yes any pump on the driver side of the tank used on the street under any conditions will be starving constantly unless you keep the tank over half full or turn it off.

That's what I was afraid of. So to really make a bulletproof system you'd have to get a T or Y fitting and put another HydraMat on the passenger side so no matter what the driver side pump is always getting fed. Probably going to be another $250 going that route.

Whittie · 02-02-2017, 09:52 AM

How hard would it be to wire a switch in to the cabin for the second pump? Put it next to the traction/stability bypass switch and engage when necessary?

gsjohnson08 · 02-15-2017, 10:58 AM

Quote:

Originally Posted by Whittie

How hard would it be to wire a switch in to the cabin for the second pump? Put it next to the traction/stability bypass switch and engage when necessary?

Ya, that's what I realized would be much easier and cheaper. I am planning on drilling a hole in the top of the sending unit and mounting a rubber plug that I'll put 2 small holes in and run the wires through them to and from the switch. The holes will be undersized so hopefully there won't be any leakage. I've also verified the plugs can handle gasoline and won't deteriorate. I am also planning to put the switch in one of my dead spaces where the heated seat switches would go as I don't have heated seats. I think this should work out really well. It seems Z1 just needed to do a bit more engineering and they would have nailed a perfect and reasonably cheap solution to the fuel-starvation issue for road and track use.

DarkJak · 01-16-2018, 12:31 PM

Quote:

Originally Posted by gsjohnson08

Ya, that's what I realized would be much easier and cheaper. I am planning on drilling a hole in the top of the sending unit and mounting a rubber plug that I'll put 2 small holes in and run the wires through them to and from the switch. The holes will be undersized so hopefully there won't be any leakage. I've also verified the plugs can handle gasoline and won't deteriorate. I am also planning to put the switch in one of my dead spaces where the heated seat switches would go as I don't have heated seats. I think this should work out really well. It seems Z1 just needed to do a bit more engineering and they would have nailed a perfect and reasonably cheap solution to the fuel-starvation issue for road and track use.

Thread bump, because I'm pulling this trigger on a fuel starve solution before events start up again in the spring...

What's Z1's kit missing, or has as a potential deal-breaker?
Is it that both pumps are constantly running?

Hotrodz · 01-16-2018, 08:20 PM

Quote:

Originally Posted by DarkJak

Thread bump, because I'm pulling this trigger on a fuel starve solution before events start up again in the spring...

What's Z1's kit missing, or has as a potential deal-breaker?
Is it that both pumps are constantly running?

Both pumps run all the time. I have one installed and it has performed as advertised. I don't daily drive mine very much anymore and I run e85 with 1000cc injectors so mpgs don't matter to me as much as having a reliable fuel system at the track.

01-11-2017, 12:47 PM	#2 (permalink)
Wonka2581 A True Z Fanatic Join Date: Nov 2012 Location: Chattanooga, TN Posts: 3,083 Drives: MY WIFE CRAZY.... Rep Power: 2612	Sub'd __________________ "I have nothing to offer but blood, toil, tears and sweat""Winston Churchill"

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02-02-2017, 09:52 AM	#4 (permalink)
Whittie Base Member Join Date: Jan 2016 Location: Houston Posts: 24 Drives: 2015 Q60s Limited Rep Power: 10	How hard would it be to wire a switch in to the cabin for the second pump? Put it next to the traction/stability bypass switch and engage when necessary?