Voltage booster vs. DSX Aux fuel kit

swisstyphoon · 08-13-2020, 01:07 PM

lets hear pros and cons.

I don't like to drill the tank, and heard the Aux kit won't work for road corse racing, because of the fuel pick up location...

Wish there would be an option that uses the stock pump basket...

Choda · 08-13-2020, 01:08 PM

Dsx will support more power but you have to drill into your tank.

Mikael · 08-15-2020, 04:33 AM

Quote:

Originally Posted by swisstyphoon

lets hear pros and cons.

I don't like to drill the tank, and heard the Aux kit won't work for road corse racing, because of the fuel pick up location...

Wish there would be an option that uses the stock pump basket...

I think Fore innovations have bigger pumps in tank

Joshinator99 · 08-15-2020, 06:33 AM

Quote:

Originally Posted by Mikael

I think Fore innovations have bigger pumps in tank

No bucket with the Fore setup. Probably fine for street and drag racing, but will be a problem if you track the car.

laynlo15 · 08-15-2020, 08:00 AM

I made somewhere around 875 rwhp with Voltage booster and just an Lt4 pump in tank on 18 lbs of boost with race fuel. Wish I'd done the Dsx lowside, never came close to the full potential of the forged motor and 2650 Maggie. Obviously I also had the Lt4 HPFP and injectors.

Juiced1 · 08-15-2020, 07:50 PM

Voltage boosters are okay but they aren't going to deliver much more fuel. If you are just starting to run out of fuel they can help out but the next round of mods will usually knock them out.

travislambert · 08-15-2020, 09:39 PM

DSX kit is garbage. Don't bother with that.

The fuel starvation problem isn't limited to the road course. It's pretty easy to get the fuel to transfer from one side to the other. If you drive around a highway ramp curved to the right then hit the gas as you merge into traffic you'll risk dropping fuel pressure if you have less than 1/2 tank of gas.
The tank fuel fitting will eventually leak. The tank in the Camaro is way too thin for a tapered fitting. To tap the tank correctly, you have to drop the tank and install a bulkhead fitting. Not to mention it is impossible to backflush all of the shavings from drilling the tank. Just when you think you did a perfect job, run the car for about a week and check the filter in the DSX pump. It will be full of shavings... guaranteed.
Tuning this system is a complete nightmare because it's an all or nothing type system. When the supplemental pump kicks off, the variable pump in the tank is wound down and must spin back up before the fuel pressure drops again. You have to hack the crap out of the tune to make this even kind of work. I'm sure people may disagree here, but there's a BIG difference between getting a fuel system to work correctly under all conditions and getting something hacked together to work for a few dyno pulls. Dave (DSX Tuning Owner) can't provide a single working tune example for his kit. He just likes to hide behind the premise that if you can't get it working on your own then you must not know what you're doing. The truth is, he knows it's impossible to tune correctly.
There should be a sealed automotive connector to attach the harness to the controller. Potting the wires from a harness directly to the controller is something you won't find anywhere in modern vehicles, and there's a good reason for it. The wires eventually fatigue and fail where the wire meets the potting compound.
The tap fitting that installs in the fuel line increases the length of the fuel line causing the fuel line to rub the tank. This is fire waiting to happen if you don't shorten the line on your own to regain the proper clearance.
I could go on and on, but trust me... it's junk engineering.

If anyone is creating a museum of poorly engineered automotive accessories and would like a Camaro DSX Tuning Supplemental Fuel Pump Kit for a featured exhibit, I have one with just a few hours on it I'll sell for half price.

Markoz28 · 08-15-2020, 11:09 PM

I imagine the booster with a cam will supply over 800whp without an issue. I can’t imagine you need more than that.

SFV1LE · 08-16-2020, 02:50 AM

1 or 2 of these with Ti 285s in a Fore might work.

https://www.holley.com/products/fuel...s/parts/16-111

travislambert · 08-16-2020, 09:16 AM

The Fore system has issues on the road course too. There is a thread on here about it somewhere.

I haven't tried anything above 17.5v with the JMS booster, but I'm at the very limit at 700 RWHP on 93. The same scenario with fuel sloshing to the lefthand tank also reduces the fuel supply capacity of the stock pump. At 17.3V and 700RWHP I have dropped fuel pressure after a hard right turn and a long straight. I have never had any pressure loss at 17.5v.

I know the JMS booster can go higher, but I imagine going much higher than 17.5v could cause issue with the FPCM and/or pump.

swisstyphoon · 08-16-2020, 10:12 AM

This sounds interesting:
DIY DW400 pump upgrade.
Just wonder if the fuel pump module can handle the extra load over time..

https://www.camaro6.com/forums/showthread.php?t=567023

Joshinator99 · 08-16-2020, 11:38 AM

Quote:

Originally Posted by swisstyphoon

This sounds interesting:
DIY DW400 pump upgrade.
Just wonder if the fuel pump module can handle the extra load over time..

https://www.camaro6.com/forums/showthread.php?t=567023

I'm running this pump, but just getting rolling with WOT tuning. Once I get a handle on that, I'll have some info to report.

travislambert · 08-16-2020, 11:47 AM

The upgraded pump in the OEM form with the bucket intact seems like a good solution. I just wish a reputable company made a nice drop-in upgrade like this. The solutions currently in the aftermarket all seem to be geared toward drag racing while ignoring challenges that come about for those of us using our steering wheel.

swisstyphoon · 08-16-2020, 11:49 AM

Quote:

Originally Posted by Joshinator99

I'm running this pump, but just getting rolling with WOT tuning. Once I get a handle on that, I'll have some info to report.

Cool, let us know how it turned out.

08-13-2020, 01:07 PM	#1
swisstyphoon Former GM Technician Drives: 2018 ZL1 A10, 06 Silverado Duramax Join Date: Sep 2009 Location: Switzerland Posts: 341	Voltage booster vs. DSX Aux fuel kit lets hear pros and cons. I don't like to drill the tank, and heard the Aux kit won't work for road corse racing, because of the fuel pick up location... Wish there would be an option that uses the stock pump basket... __________________ 2018 Camaro ZL1 A10 Rotofab Big Gulp, Nick Williams 103, Magnuson 2650, 9.17" (14%) lower, 90mm upper, Vengeance Racing Heads (LME) Cam Package (Cammotion Stage 1), Johnson Lifters, JMS Voltage Booster, Lingenfelter high flow check valve, BBK shorty headers, Custom 2.75" down pipes, Gesi Gen2 high flow cats, MM catch can 791whp, 772ft-lbs SAE Just added 30% XDI Injectors, LPE big bore hpfp, Flex fuel. Elite tuning, results coming soon. 2006 Silverado Duramax Diesel MPI Compound Turbo 40% over Injectors Efi Live DSP5 Tuning Follow me on Instagram: Swisstyphoon1980

08-13-2020, 01:08 PM	#2
Choda Drives: Turbo 6.2 Join Date: Feb 2019 Location: Buffalo Posts: 702	Dsx will support more power but you have to drill into your tank. __________________ 2016 Turbo Camaro SS - 800hp/900tq 9.7@146 2018 LTZ Z71 Redline Silverado - 381hp/420tq 13.8@100

08-15-2020, 08:00 AM	#5
laynlo15 Drives: 2022 Lt1 A10 Join Date: Nov 2015 Location: clark, mo Posts: 8,860	I made somewhere around 875 rwhp with Voltage booster and just an Lt4 pump in tank on 18 lbs of boost with race fuel. Wish I'd done the Dsx lowside, never came close to the full potential of the forged motor and 2650 Maggie. Obviously I also had the Lt4 HPFP and injectors. __________________ 2022 Lt1 6.2 A10, Maggie 2300, THPSI Port Inj/10 rib, Rotofab, E, Nickey, SCOL, Griptech, RC Bandits, Hoosiers/MT 9.80@142.96 1.44 60ft, 6.34@112 707/669 RWHP/TRQ. 16SS Maggie 2650 9.41@147 1.35 60ft, 5.99@119. 16 C7 A8 10.90@128 Bolt on stuff

08-15-2020, 09:39 PM	#7
travislambert Drives: '17 ZL1 Join Date: Jul 2016 Location: Fairmont, WV Posts: 1,558	DSX kit is garbage. Don't bother with that. The fuel starvation problem isn't limited to the road course. It's pretty easy to get the fuel to transfer from one side to the other. If you drive around a highway ramp curved to the right then hit the gas as you merge into traffic you'll risk dropping fuel pressure if you have less than 1/2 tank of gas. The tank fuel fitting will eventually leak. The tank in the Camaro is way too thin for a tapered fitting. To tap the tank correctly, you have to drop the tank and install a bulkhead fitting. Not to mention it is impossible to backflush all of the shavings from drilling the tank. Just when you think you did a perfect job, run the car for about a week and check the filter in the DSX pump. It will be full of shavings... guaranteed. Tuning this system is a complete nightmare because it's an all or nothing type system. When the supplemental pump kicks off, the variable pump in the tank is wound down and must spin back up before the fuel pressure drops again. You have to hack the crap out of the tune to make this even kind of work. I'm sure people may disagree here, but there's a BIG difference between getting a fuel system to work correctly under all conditions and getting something hacked together to work for a few dyno pulls. Dave (DSX Tuning Owner) can't provide a single working tune example for his kit. He just likes to hide behind the premise that if you can't get it working on your own then you must not know what you're doing. The truth is, he knows it's impossible to tune correctly. There should be a sealed automotive connector to attach the harness to the controller. Potting the wires from a harness directly to the controller is something you won't find anywhere in modern vehicles, and there's a good reason for it. The wires eventually fatigue and fail where the wire meets the potting compound. The tap fitting that installs in the fuel line increases the length of the fuel line causing the fuel line to rub the tank. This is fire waiting to happen if you don't shorten the line on your own to regain the proper clearance. I could go on and on, but trust me... it's junk engineering. If anyone is creating a museum of poorly engineered automotive accessories and would like a Camaro DSX Tuning Supplemental Fuel Pump Kit for a featured exhibit, I have one with just a few hours on it I'll sell for half price. __________________ 2023 Camaro SS 1LE A10 2023 Camaro ZL1 1LE M6 2017 Camaro ZL1 M6 2016 Camaro SS M6 w/LT4 (Sold) Last edited by travislambert; 08-16-2020 at 12:50 PM.

08-16-2020, 09:16 AM	#10
travislambert Drives: '17 ZL1 Join Date: Jul 2016 Location: Fairmont, WV Posts: 1,558	The Fore system has issues on the road course too. There is a thread on here about it somewhere. I haven't tried anything above 17.5v with the JMS booster, but I'm at the very limit at 700 RWHP on 93. The same scenario with fuel sloshing to the lefthand tank also reduces the fuel supply capacity of the stock pump. At 17.3V and 700RWHP I have dropped fuel pressure after a hard right turn and a long straight. I have never had any pressure loss at 17.5v. I know the JMS booster can go higher, but I imagine going much higher than 17.5v could cause issue with the FPCM and/or pump. __________________ 2023 Camaro SS 1LE A10 2023 Camaro ZL1 1LE M6 2017 Camaro ZL1 M6 2016 Camaro SS M6 w/LT4 (Sold)

08-15-2020, 07:50 PM	#6
Juiced1 Account Suspended Drives: 2012 2SS CAMARO 45th Join Date: Apr 2011 Location: St. Charles, IL Posts: 18,663	Voltage boosters are okay but they aren't going to deliver much more fuel. If you are just starting to run out of fuel they can help out but the next round of mods will usually knock them out.

08-15-2020, 11:09 PM	#8
Markoz28 Drives: 18 ZL1 nightfall grey A10 Join Date: Apr 2018 Location: RGV Texas Posts: 1,527	I imagine the booster with a cam will supply over 800whp without an issue. I can’t imagine you need more than that.

08-16-2020, 02:50 AM	#9
SFV1LE Drives: 2018 Hyper Blue ZL1 1LE Join Date: Dec 2018 Location: CA Posts: 1,360	1 or 2 of these with Ti 285s in a Fore might work. https://www.holley.com/products/fuel...s/parts/16-111

08-16-2020, 10:12 AM	#11
swisstyphoon Former GM Technician Drives: 2018 ZL1 A10, 06 Silverado Duramax Join Date: Sep 2009 Location: Switzerland Posts: 341	This sounds interesting: DIY DW400 pump upgrade. Just wonder if the fuel pump module can handle the extra load over time.. https://www.camaro6.com/forums/showthread.php?t=567023 __________________ 2018 Camaro ZL1 A10 Rotofab Big Gulp, Nick Williams 103, Magnuson 2650, 9.17" (14%) lower, 90mm upper, Vengeance Racing Heads (LME) Cam Package (Cammotion Stage 1), Johnson Lifters, JMS Voltage Booster, Lingenfelter high flow check valve, BBK shorty headers, Custom 2.75" down pipes, Gesi Gen2 high flow cats, MM catch can 791whp, 772ft-lbs SAE Just added 30% XDI Injectors, LPE big bore hpfp, Flex fuel. Elite tuning, results coming soon. 2006 Silverado Duramax Diesel MPI Compound Turbo 40% over Injectors Efi Live DSP5 Tuning Follow me on Instagram: Swisstyphoon1980

08-16-2020, 11:47 AM	#13
travislambert Drives: '17 ZL1 Join Date: Jul 2016 Location: Fairmont, WV Posts: 1,558	The upgraded pump in the OEM form with the bucket intact seems like a good solution. I just wish a reputable company made a nice drop-in upgrade like this. The solutions currently in the aftermarket all seem to be geared toward drag racing while ignoring challenges that come about for those of us using our steering wheel. __________________ 2023 Camaro SS 1LE A10 2023 Camaro ZL1 1LE M6 2017 Camaro ZL1 M6 2016 Camaro SS M6 w/LT4 (Sold)

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