JMS FuelMAX voltage booster vs DSX Aux Pump for LSA/LS3 Combo - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

Joe.G · 03-03-2026, 04:03 PM

ZL1 Fuel Pump and JMS Voltage Booster with 1050 ID Injectors good for how much HP Safely? Or should I go with and DSX Aux pump? Ls3 with Ported LSA SC and a Cam.

Wondering if either set up is safe for the 700 HP Range.
I have had both suggested.
JMS if able to handle HP safely I think would be a good options.
I am looking for a safe reliable set up.

Thanks

tartagliazl1 · 03-03-2026, 06:37 PM

Hey Joe. I ran the JMS for about 2 years around 700 hp with no problems with 850cc injectors. I also ran meth tho. I’m not sure how long the zl1 pump can take 17.5 amp for the long haul. I would just go dsx low side. It’s a easy install and can make way more power.

Joe.G · 03-03-2026, 07:17 PM

Kinda what I was thinking, just trying to get different opinions and thoughts. I don't really see myself going any further than current build plan.

CamaroCracka · 03-05-2026, 08:44 AM

I've been running a Kenne Bell boost-a-pump with a ZL1 pump for about 10 years. It is triggered by a hobbs switch at 7# and I replaced the rheostat with a resistor that makes it put out 18.5v, which is the max without triggering a CEL. It worked with 700hp on pump gas with a turbo and meth. I went to ID1000 injectors on E85 to safely move to 16# of boost at 800hp, which necessitated an A1000 aux pump (could have used DSX but wanted something different than what they offered). I pulled the meth when I did that and ended up having to get a Treadstone race intercooler to keep the IATs down. I tried not using the boost-a-pump with the A1000, but pressure was not what I needed at 7k (I have to push 85psi at 7k to keep the duty cycle reasonable with the ID1000s). Hope that helps.

Joe.G · 03-05-2026, 09:30 AM

So is a ZL1 Pump JMS BP with ID1050's safe for the 700 to 750 range on pump gas? I really don't want to run short on fuel, also if you got over ten years ontge set up I am assuming it is fairly safe/ easy on the pump.

CamaroCracka · 03-07-2026, 12:58 PM

I'm not sure about 750, plus I run a turbo which uses less fuel than a blower. I also have a spare pump on the shelf for peace of mind.

CamaroDreams76 · 03-07-2026, 03:53 PM

ZL1 pump with a BAP 700/750 is about all that combo is good for.

Have you looked at KMP fuel systems? They offer return less OEM sytle fuel systems. Complete plug and play with OEM.

Joe.G · 03-07-2026, 05:18 PM

Do you happen to have a link? If not I can search later. I Am open to suggestions.

CamaroDreams76 · 03-07-2026, 08:21 PM

https://kpmfuelsystems.com/?store_se...h_category=153

Personally have not used them but I see adds on this site all the time. My good friend with an ESS supercharged 10R80 S550 is looking into them and the shop we use speaks highly of them.

Joe.G · 03-08-2026, 07:19 AM

Being that they are crank ratings I would probably need the 1000 HP Pump? I'd have to speak with tuner and see what he thinks. I'll also do some research to see what people are saying.

CJandtheSS · 04-02-2026, 12:09 PM

my tuner recommended the DSX Aux as I'm in the same situation you are right now. Sending the LS3 to get a cam and rebuilt. Before the bearing spun, I was at 14psi and was on the cusp of maxing out the ZL1 pump (1000cc injectors had plenty of room) at about 140mph/6k+rpm. It's cheap insurance because I do not want to ever pull this damn thing out again lmao

Joe.G · 04-02-2026, 12:51 PM

I may try the JMS Booster pump at this point .

03-03-2026, 04:03 PM	#1
Joe.G Drives: 2014 2SS/RS 6SP Ashen Grey Join Date: Aug 2021 Location: NY Posts: 1,856	JMS FuelMAX voltage booster vs DSX Aux Pump for LSA/LS3 Combo ZL1 Fuel Pump and JMS Voltage Booster with 1050 ID Injectors good for how much HP Safely? Or should I go with and DSX Aux pump? Ls3 with Ported LSA SC and a Cam. Wondering if either set up is safe for the 700 HP Range. I have had both suggested. JMS if able to handle HP safely I think would be a good options. I am looking for a safe reliable set up. Thanks __________________ GM 3.91/TrueTrac OEM ZL1 Rims, 6 Piston Brakes & Side Skirts.ACST4 Splitter/Deflectors NPP M2W,GM Short Throw,GPI Ported Rod Mod,BO White PTB,CAI/JRE Scoop, GC Aluminum DS,Stainless Works Ceramic LTH/HiFlo Cats, Hotckis 1" Springs & Chassis Max Brace BMR Adjustable Swaybars,Trailing Arms, Adjustable Toe Rod, LCA & Z28 UCA Bushings Hendrix Solid Cradle Bushings Pedders Radius Rod Inserts Strut tower brace, Moroso Catch Can,SCT X4 Dynosteve,Remote Clutch reservoir,Hero Smoked Tail and 3rd Brake Light, Diode Dynamic SL1 Fog Lights AeroForce Dual gauge/Autometer pillar mount. Last edited by Joe.G; 03-03-2026 at 06:13 PM.

03-03-2026, 06:37 PM	#2
tartagliazl1 Drives: 2013 zl1 vert Join Date: Dec 2018 Location: Rochester, New york Posts: 1,231	Hey Joe. I ran the JMS for about 2 years around 700 hp with no problems with 850cc injectors. I also ran meth tho. I’m not sure how long the zl1 pump can take 17.5 amp for the long haul. I would just go dsx low side. It’s a easy install and can make way more power. __________________ 22% lower/ 2.5 upper/ 2” headers/ cat delete/ x-pipe/ 2 gallon x tank/ 100-3 pump/ fic 1300/ dsx aux kit/ 103mm throttle body/ big gulp 5” intake/ meth kit/ prometh lid injection/FI interchiller/ 160* stat/ ngk-7/ msd wires/ elite catch can/ tsp cam/ Che trunnions/ ported supercharger/ 1/2” lid spacer/ cnc,milled ported heads/ brick mod/BMR toe and trailing arms/ 781hp 748 tq SAE @17.3lb on a loaded dyno.

03-03-2026, 07:17 PM	#3
Joe.G Drives: 2014 2SS/RS 6SP Ashen Grey Join Date: Aug 2021 Location: NY Posts: 1,856	Kinda what I was thinking, just trying to get different opinions and thoughts. I don't really see myself going any further than current build plan. __________________ GM 3.91/TrueTrac OEM ZL1 Rims, 6 Piston Brakes & Side Skirts.ACST4 Splitter/Deflectors NPP M2W,GM Short Throw,GPI Ported Rod Mod,BO White PTB,CAI/JRE Scoop, GC Aluminum DS,Stainless Works Ceramic LTH/HiFlo Cats, Hotckis 1" Springs & Chassis Max Brace BMR Adjustable Swaybars,Trailing Arms, Adjustable Toe Rod, LCA & Z28 UCA Bushings Hendrix Solid Cradle Bushings Pedders Radius Rod Inserts Strut tower brace, Moroso Catch Can,SCT X4 Dynosteve,Remote Clutch reservoir,Hero Smoked Tail and 3rd Brake Light, Diode Dynamic SL1 Fog Lights AeroForce Dual gauge/Autometer pillar mount.

03-05-2026, 08:44 AM	#4
CamaroCracka Drives: 2010 Turbo LS3 Join Date: Dec 2009 Location: Palm Bay, FL Posts: 3,065	I've been running a Kenne Bell boost-a-pump with a ZL1 pump for about 10 years. It is triggered by a hobbs switch at 7# and I replaced the rheostat with a resistor that makes it put out 18.5v, which is the max without triggering a CEL. It worked with 700hp on pump gas with a turbo and meth. I went to ID1000 injectors on E85 to safely move to 16# of boost at 800hp, which necessitated an A1000 aux pump (could have used DSX but wanted something different than what they offered). I pulled the meth when I did that and ended up having to get a Treadstone race intercooler to keep the IATs down. I tried not using the boost-a-pump with the A1000, but pressure was not what I needed at 7k (I have to push 85psi at 7k to keep the duty cycle reasonable with the ID1000s). Hope that helps. __________________ 2010 SS - Kind of an On3 kit, CTR 78/80, CompCam 239/251 620/632 122+4, E85, Z28 suspension and ZL1 diff with Outlaw axles. Gen6 ZL1 brakes. 2011 Vert - 416/w 230/236 .612/.602 115lsa, 1LE suspension w/32mm rear bar. Z28 diff. Gen6 ZL1 brakes.

03-05-2026, 09:30 AM	#5
Joe.G Drives: 2014 2SS/RS 6SP Ashen Grey Join Date: Aug 2021 Location: NY Posts: 1,856	So is a ZL1 Pump JMS BP with ID1050's safe for the 700 to 750 range on pump gas? I really don't want to run short on fuel, also if you got over ten years ontge set up I am assuming it is fairly safe/ easy on the pump. __________________ GM 3.91/TrueTrac OEM ZL1 Rims, 6 Piston Brakes & Side Skirts.ACST4 Splitter/Deflectors NPP M2W,GM Short Throw,GPI Ported Rod Mod,BO White PTB,CAI/JRE Scoop, GC Aluminum DS,Stainless Works Ceramic LTH/HiFlo Cats, Hotckis 1" Springs & Chassis Max Brace BMR Adjustable Swaybars,Trailing Arms, Adjustable Toe Rod, LCA & Z28 UCA Bushings Hendrix Solid Cradle Bushings Pedders Radius Rod Inserts Strut tower brace, Moroso Catch Can,SCT X4 Dynosteve,Remote Clutch reservoir,Hero Smoked Tail and 3rd Brake Light, Diode Dynamic SL1 Fog Lights AeroForce Dual gauge/Autometer pillar mount.

03-07-2026, 12:58 PM	#6
CamaroCracka Drives: 2010 Turbo LS3 Join Date: Dec 2009 Location: Palm Bay, FL Posts: 3,065	I'm not sure about 750, plus I run a turbo which uses less fuel than a blower. I also have a spare pump on the shelf for peace of mind. __________________ 2010 SS - Kind of an On3 kit, CTR 78/80, CompCam 239/251 620/632 122+4, E85, Z28 suspension and ZL1 diff with Outlaw axles. Gen6 ZL1 brakes. 2011 Vert - 416/w 230/236 .612/.602 115lsa, 1LE suspension w/32mm rear bar. Z28 diff. Gen6 ZL1 brakes. Last edited by CamaroCracka; 03-25-2026 at 05:33 PM.

03-07-2026, 03:53 PM	#7
CamaroDreams76 Tri-County Camaro SWFL Drives: 2013 IOM 2SS/RS/1LE Join Date: Apr 2013 Location: South West FL Posts: 3,580 View My Garage	ZL1 pump with a BAP 700/750 is about all that combo is good for. Have you looked at KMP fuel systems? They offer return less OEM sytle fuel systems. Complete plug and play with OEM. __________________ Just bolt ons........ https://www.camaro5.com/forums/showthread.php?t=343023

03-07-2026, 05:18 PM	#8
Joe.G Drives: 2014 2SS/RS 6SP Ashen Grey Join Date: Aug 2021 Location: NY Posts: 1,856	Do you happen to have a link? If not I can search later. I Am open to suggestions. __________________ GM 3.91/TrueTrac OEM ZL1 Rims, 6 Piston Brakes & Side Skirts.ACST4 Splitter/Deflectors NPP M2W,GM Short Throw,GPI Ported Rod Mod,BO White PTB,CAI/JRE Scoop, GC Aluminum DS,Stainless Works Ceramic LTH/HiFlo Cats, Hotckis 1" Springs & Chassis Max Brace BMR Adjustable Swaybars,Trailing Arms, Adjustable Toe Rod, LCA & Z28 UCA Bushings Hendrix Solid Cradle Bushings Pedders Radius Rod Inserts Strut tower brace, Moroso Catch Can,SCT X4 Dynosteve,Remote Clutch reservoir,Hero Smoked Tail and 3rd Brake Light, Diode Dynamic SL1 Fog Lights AeroForce Dual gauge/Autometer pillar mount.

03-07-2026, 08:21 PM	#9
CamaroDreams76 Tri-County Camaro SWFL Drives: 2013 IOM 2SS/RS/1LE Join Date: Apr 2013 Location: South West FL Posts: 3,580 View My Garage	https://kpmfuelsystems.com/?store_se...h_category=153 Personally have not used them but I see adds on this site all the time. My good friend with an ESS supercharged 10R80 S550 is looking into them and the shop we use speaks highly of them. __________________ Just bolt ons........ https://www.camaro5.com/forums/showthread.php?t=343023

03-08-2026, 07:19 AM	#10
Joe.G Drives: 2014 2SS/RS 6SP Ashen Grey Join Date: Aug 2021 Location: NY Posts: 1,856	Being that they are crank ratings I would probably need the 1000 HP Pump? I'd have to speak with tuner and see what he thinks. I'll also do some research to see what people are saying. __________________ GM 3.91/TrueTrac OEM ZL1 Rims, 6 Piston Brakes & Side Skirts.ACST4 Splitter/Deflectors NPP M2W,GM Short Throw,GPI Ported Rod Mod,BO White PTB,CAI/JRE Scoop, GC Aluminum DS,Stainless Works Ceramic LTH/HiFlo Cats, Hotckis 1" Springs & Chassis Max Brace BMR Adjustable Swaybars,Trailing Arms, Adjustable Toe Rod, LCA & Z28 UCA Bushings Hendrix Solid Cradle Bushings Pedders Radius Rod Inserts Strut tower brace, Moroso Catch Can,SCT X4 Dynosteve,Remote Clutch reservoir,Hero Smoked Tail and 3rd Brake Light, Diode Dynamic SL1 Fog Lights AeroForce Dual gauge/Autometer pillar mount.

04-02-2026, 12:09 PM	#11
CJandtheSS Drives: 2012 Victory Red Camaro 2SS/RS M6 Join Date: Jun 2014 Location: Redwood City, CA Posts: 145	my tuner recommended the DSX Aux as I'm in the same situation you are right now. Sending the LS3 to get a cam and rebuilt. Before the bearing spun, I was at 14psi and was on the cusp of maxing out the ZL1 pump (1000cc injectors had plenty of room) at about 140mph/6k+rpm. It's cheap insurance because I do not want to ever pull this damn thing out again lmao __________________ 2012 Victory Red 2SS/RS: Roto-Fab CAI, Long Tubes, HF Cats. Corsa Catback, Hurst Short Throw, LSA Supercharged, ADM 3-belt Conversion, LS3 TB, Reinforced Brick, 2.55 Griptec upper, ATI Super Damper, 10% lower OD, 1000cc FIC Injectors, ZL1 Fuel pump and 305 MT ET S/S. 575/599

04-02-2026, 12:51 PM	#12
Joe.G Drives: 2014 2SS/RS 6SP Ashen Grey Join Date: Aug 2021 Location: NY Posts: 1,856	I may try the JMS Booster pump at this point . __________________ GM 3.91/TrueTrac OEM ZL1 Rims, 6 Piston Brakes & Side Skirts.ACST4 Splitter/Deflectors NPP M2W,GM Short Throw,GPI Ported Rod Mod,BO White PTB,CAI/JRE Scoop, GC Aluminum DS,Stainless Works Ceramic LTH/HiFlo Cats, Hotckis 1" Springs & Chassis Max Brace BMR Adjustable Swaybars,Trailing Arms, Adjustable Toe Rod, LCA & Z28 UCA Bushings Hendrix Solid Cradle Bushings Pedders Radius Rod Inserts Strut tower brace, Moroso Catch Can,SCT X4 Dynosteve,Remote Clutch reservoir,Hero Smoked Tail and 3rd Brake Light, Diode Dynamic SL1 Fog Lights AeroForce Dual gauge/Autometer pillar mount.