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Tracking / Autocross / HPDE / Drifting What these cars were built for! |
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06-12-2022, 03:06 PM | #1 |
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Fuel Starvation
Hi guys! recently ive had someone ask to make something specific for this issue. But i was wondering if anyone else has experience fuel starvation. Who have already done the fuel flap addon but still have issues. I anyways read from fb groups of people adding a scavenge pump in the other side of the tank. But i always get questions on what would be the best way to control it. So im making a device that connects to the factory G meter and turn it on based on the Gforce going on in the car.
But in reality im just wondering how many of you are doing that type of system?
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06-13-2022, 03:42 PM | #2 |
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Most folks use a manual switch and let the secondary pump run dry under starve conditions; it's a relatively cheap replacement.
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06-13-2022, 03:48 PM | #3 |
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I wouldn't try to reinvent the wheel. Radium has several products out there to handle the issue:
http://www.radiumauto.com/Fuel-Pump-...Z86-P2108.aspx http://www.radiumauto.com/FST-R-Fuel...-FPR-P348.aspx I have a radium surge tank mounted in my trunk and have run the tank completely dry on track. I didn't experience any hint of fuel starve until just a few turns before I completely ran out of fuel. I had a small bobble on corner exit that felt weird, then BAM completely out of gas 3 straights later. had to get a tow truck to pull me in. (at least I took the checker before I ran out of gas. ) |
06-14-2022, 12:19 AM | #4 | |
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The Following User Says Thank You to geraldjust For This Useful Post: | FR-S2GT86 (06-30-2022) |
06-14-2022, 12:24 AM | #5 |
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yeah i assumed that would of been a simpler and more common solution haha. I guess i like making PCBs so when someone has a suggestion my brain tells me its easily doable.
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06-14-2022, 08:50 AM | #6 | |
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THEN the surge tank itself has the high pressure pump in it that feeds the engine. the engine itself is still a return type, so any air would quickly be purged from that line too. don't know where the return line from the engine goes, but it does go somewhere in the system. (the whole thing was installed in the car when I bought it and it works well, so I haven't bothered nit-picking the routing ). |
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06-14-2022, 12:16 PM | #7 | |
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I think what the average guy is looking for is a way to automatically switch on a scavenge pump. Some guys run them on manual switch but they burn out the pump running it at full power the whole time. I think the next step after that is to run it on a small DC motor controller to adjust pump output, you shouldn't need to run the scavenge pump at full duty cycle. Then come up with an auto switching setup. I have a couple ideas in mind but don't have the time to mess with it right now. All in I think I am at 100 bucks for a second fuel basket with pump and sender, a motor controller, and some misc items to the project.
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The Following User Says Thank You to NoHaveMSG For This Useful Post: | Matt93SE (06-15-2022) |
06-14-2022, 09:55 PM | #8 | |
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I know the PCB is a rough draft lol
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The Following User Says Thank You to geraldjust For This Useful Post: | NoHaveMSG (06-14-2022) |
06-14-2022, 11:39 PM | #9 | |
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Far more sophisticated then what I was looking at building.
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06-15-2022, 12:12 AM | #10 |
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Gerald.. sell an easy plug and play solution with a pump and comprehensive install instructions and you’ll be a big hit.
Enjoy your early retirement.
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The Following User Says Thank You to rice_classic For This Useful Post: | Matt93SE (06-15-2022) |
06-15-2022, 09:09 AM | #11 | |
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This would reduce/eliminate the start/stop electronics and it just becomes a passive hydraulic solution which still fits in the tank without extra hassles and electronics and parts to fail. I'm a very big fan of K.I.S.S, and my free time is such that I'd rather just buy a proven solution than to fiddle with something and invent it myself. But hey, that's my preference. I'm certainly not saying someone else shouldn't develop their own solution if they have the time and desire, just that there is already a solution out there that does the job and is known quality. |
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The Following User Says Thank You to Matt93SE For This Useful Post: | NoHaveMSG (06-15-2022) |
06-15-2022, 12:21 PM | #12 | |
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06-15-2022, 12:35 PM | #13 | |
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Last edited by Ultramaroon; 06-15-2022 at 12:46 PM. |
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The Following User Says Thank You to Ultramaroon For This Useful Post: | NoHaveMSG (06-15-2022) |
06-15-2022, 12:36 PM | #14 | |
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I have a stock pump assy sitting on my workbench if you want photos, but it'll have to be tomorrow since I have some plans today and tonight. |
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The Following User Says Thank You to Matt93SE For This Useful Post: | NoHaveMSG (06-15-2022) |
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