Radium Fuel Surge Tank- Pump setup
05-18-24, 11:40 AM
#1
Radium Fuel Surge Tank- Pump setup
I have a question about the fuel pumps used in the surge tank setup, in this case the Radium setup? Should you match the main feed pump and the lift pump? It looks like most people do, but why do they?
I question this since IMHO, the lift pump is obviously always running at a very low load pressure and would only require a lower output (and less expensive) pump and draw way less amperage on the wiring. A higher output pump lift pump would be more expensive and would be running way below its rated output, but would likely still draw more amperage due to its overall beefier design? I'm I right about that conclusion or I'm I misguided? As I see it, as long as the lift pump is reliable, all you need is a lower cost, lower overall output lift pump and in turn this would result in less of an overall amperage draw on your wiring, with less heat. This would then also allow the main feed pump to draw more amperage, if needed, without potentially taxing the overall wiring.
Any opinions?
Thanks
Mike
I question this since IMHO, the lift pump is obviously always running at a very low load pressure and would only require a lower output (and less expensive) pump and draw way less amperage on the wiring. A higher output pump lift pump would be more expensive and would be running way below its rated output, but would likely still draw more amperage due to its overall beefier design? I'm I right about that conclusion or I'm I misguided? As I see it, as long as the lift pump is reliable, all you need is a lower cost, lower overall output lift pump and in turn this would result in less of an overall amperage draw on your wiring, with less heat. This would then also allow the main feed pump to draw more amperage, if needed, without potentially taxing the overall wiring.
Any opinions?
Thanks
Mike
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Slides (05-20-24)
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mikejokich (05-18-24)
05-18-24, 03:13 PM
#4
#garageguybuild
iTrader: (32)
I have a question about the fuel pumps used in the surge tank setup, in this case the Radium setup? Should you match the main feed pump and the lift pump? It looks like most people do, but why do they?
I question this since IMHO, the lift pump is obviously always running at a very low load pressure and would only require a lower output (and less expensive) pump and draw way less amperage on the wiring. A higher output pump lift pump would be more expensive and would be running way below its rated output, but would likely still draw more amperage due to its overall beefier design? I'm I right about that conclusion or I'm I misguided? As I see it, as long as the lift pump is reliable, all you need is a lower cost, lower overall output lift pump and in turn this would result in less of an overall amperage draw on your wiring, with less heat. This would then also allow the main feed pump to draw more amperage, if needed, without potentially taxing the overall wiring.
Any opinions?
Thanks
Mike
I question this since IMHO, the lift pump is obviously always running at a very low load pressure and would only require a lower output (and less expensive) pump and draw way less amperage on the wiring. A higher output pump lift pump would be more expensive and would be running way below its rated output, but would likely still draw more amperage due to its overall beefier design? I'm I right about that conclusion or I'm I misguided? As I see it, as long as the lift pump is reliable, all you need is a lower cost, lower overall output lift pump and in turn this would result in less of an overall amperage draw on your wiring, with less heat. This would then also allow the main feed pump to draw more amperage, if needed, without potentially taxing the overall wiring.
Any opinions?
Thanks
Mike
Mike, they talk about it here when selecting a surge tank.
https://www.radiumauto.com/Blog/Post...Fuel-Pumps-101
I have the Radium setup and its a nice piece.. I just wish it wasn’t such a huge PIA to install. My only gripe about it.
Steve
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j9fd3s (05-19-24)
05-18-24, 03:25 PM
#5
Mike, they talk about it here when selecting a surge tank.
https://www.radiumauto.com/Blog/Post...Fuel-Pumps-101
I have the Radium setup and its a nice piece.. I just wish it wasn’t such a huge PIA to install. My only gripe about it.
Steve
https://www.radiumauto.com/Blog/Post...Fuel-Pumps-101
I have the Radium setup and its a nice piece.. I just wish it wasn’t such a huge PIA to install. My only gripe about it.
Steve
Thanks for the link. This is exactly what I needed to decide what to do.
Mike
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estevan62274 (05-18-24)
05-19-24, 03:18 PM
#6
Full Member
I ran 10 gauge wire to each pump. Btw Its a nightmare to install and once i got it in i realized that i broke my fuel level sender and had to replace it. Im nervous about breaking the new one so i still have it in a box lol.
05-20-24, 05:44 PM
#7
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I'm fighting hot fuel issues with the radium setup and a walbro 450 pressure and lift pump. But I also have high ambient temps here, something to keep in mind. Might be swapping the longer fuel lines from rubber back to a metal pipe to lose some heat
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05-20-24, 05:49 PM
#8
I have a question about the fuel pumps used in the surge tank setup, in this case the Radium setup? Should you match the main feed pump and the lift pump? It looks like most people do, but why do they?
I question this since IMHO, the lift pump is obviously always running at a very low load pressure and would only require a lower output (and less expensive) pump and draw way less amperage on the wiring. A higher output pump lift pump would be more expensive and would be running way below its rated output, but would likely still draw more amperage due to its overall beefier design? I'm I right about that conclusion or I'm I misguided? As I see it, as long as the lift pump is reliable, all you need is a lower cost, lower overall output lift pump and in turn this would result in less of an overall amperage draw on your wiring, with less heat. This would then also allow the main feed pump to draw more amperage, if needed, without potentially taxing the overall wiring.
Any opinions?
Thanks
Mike
I question this since IMHO, the lift pump is obviously always running at a very low load pressure and would only require a lower output (and less expensive) pump and draw way less amperage on the wiring. A higher output pump lift pump would be more expensive and would be running way below its rated output, but would likely still draw more amperage due to its overall beefier design? I'm I right about that conclusion or I'm I misguided? As I see it, as long as the lift pump is reliable, all you need is a lower cost, lower overall output lift pump and in turn this would result in less of an overall amperage draw on your wiring, with less heat. This would then also allow the main feed pump to draw more amperage, if needed, without potentially taxing the overall wiring.
Any opinions?
Thanks
Mike
Mike,
Check this out first. To hit my HP goal, I was going to have to do similar with the Radium and multiple pumps. I think the new series of Brushless might solve a lot of issues.
https://fuelab.com/c-1389277-fuel-pu...-pump-kit.html
In this case, it looks like you can run 1 single pump. Which for me means less gas lines, wires, and electrical load on the car. Rob Dahm just made 700rwp on his Tii with one of these pumps.
Eric
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FD Wheel Covers In Carbon (05-20-24),
mikejokich (05-20-24)
05-20-24, 05:55 PM
#9
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RX7Club Vendor
The Radium setup is also a sump, just slapping in a brushless pump doesn't solve that issue.
I'd love to upgrade my radium setup to a Ti pump, might help with the fuel heat issues. But I can't justify the cost at the moment.
I'd love to upgrade my radium setup to a Ti pump, might help with the fuel heat issues. But I can't justify the cost at the moment.
05-21-24, 10:02 AM
#10
Curious - are you saying that some attribute/s of the radium kit is heating up your fuel? Or that the dual Walbro 450 pumps are heating the fuel? The 2x pumps raising fuel temp I can understand but checking whether you're saying there is something about the radium setup contributing.
05-22-24, 10:18 AM
#11
Curious - are you saying that some attribute/s of the radium kit is heating up your fuel? Or that the dual Walbro 450 pumps are heating the fuel? The 2x pumps raising fuel temp I can understand but checking whether you're saying there is something about the radium setup contributing.
Mike
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