07-22-2020, 11:50 AM | #1 |
Drives: 2020 Rally Green ZL1-1LE Join Date: May 2020
Location: Illinois
Posts: 323
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Modified ZL1 low pressure pump
I see a lot of boost a pumps, add on low side pump kits, and the Fore type replacement but I'm wondering if anyone replaces the existing in tank low side pump in the factory bucket with an upgraded unit.
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07-22-2020, 01:33 PM | #2 |
Not a popular thing since you'd need to drop the tank or cut the sheetmetal paneling to get to the pump.
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07-22-2020, 02:17 PM | #3 |
Drives: SS 6 speed of course Join Date: Jan 2016
Location: Hilo, HI
Posts: 4,317
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I believe several including Lingenfelter offer drop in twin and even triple pumps. Ain't cheap.
https://www.crawford-racing.com/prod...le-fuel-system https://www.camaro6.com/forums/showthread.php?t=544327
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Forged short block, large duration sub .600 lift Cam Motion cam, 7200 RPM fuel cut, Pray Ported Heads, 3.85 pulley D1X, stage II intercooler, DSX secondary low side, DSX E85 sensor, Lingenfelter big bore 2.0 pump, ported front cats, 60608 Borla, LT4 injectors, ZL1 1LE driveshaft and Katech ported TB, ported MSD intake, BTR valvetrain, ARP studs, ProFlow valves, PS4 tires.
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07-22-2020, 06:34 PM | #4 |
Drives: 2017 Camaro 2SS A8 Join Date: Aug 2018
Location: Petersham MA
Posts: 4,751
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I’m running a DW400 in tank pump using the factory ZL1 bucket. Seems to work fine so far, no voltage booster needed. It was made by DixieZL1 on this board. Supposedly outflows the ZL1 pump by 30% at 70 psi. We will find out soon, I’m heading to the dyno this Monday (7/27) to sort out my new combo...
Edit for future readers (9/5/20): I ended up needing to add the JMS voltage booster to get this pumps potential to show up.
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2017 Chevy Camaro 2SS A8 Whipple 3.0, Mast Black Label heads, Fore triple in-tank pumps, 112mm TB, LPE +52% injectors, LPE BB HPFP, 15” conversion 1059 WHP/944 WTQ, 9.48@150
Last edited by Joshinator99; 09-05-2020 at 07:21 PM. |
07-22-2020, 10:25 PM | #5 | |
Drives: 2020 Rally Green ZL1-1LE Join Date: May 2020
Location: Illinois
Posts: 323
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Quote:
Thanks Josh! This is exactly what I was hoping to see. Please keep us updated and good luck! BTW, did you need to upgrade the wiring harness or add a backflow valve? I saw DW mentions the possible need for a valve on their DW 400 page. Last edited by GreenZLE; 07-22-2020 at 10:39 PM. |
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07-23-2020, 06:49 AM | #6 | |
Drives: 2017 Camaro 2SS A8 Join Date: Aug 2018
Location: Petersham MA
Posts: 4,751
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Quote:
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2017 Chevy Camaro 2SS A8 Whipple 3.0, Mast Black Label heads, Fore triple in-tank pumps, 112mm TB, LPE +52% injectors, LPE BB HPFP, 15” conversion 1059 WHP/944 WTQ, 9.48@150
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07-30-2020, 10:52 AM | #7 | |
Dyno Show Queen LOL
Drives: 16 SS & 17 ZL1 Both Yellow Join Date: Jan 2014
Location: Houston
Posts: 4,345
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When people buy the LPE injectors and there Big Bore pump this and the high flow Ck valve with bigger lines is the key to get 900 plus on all E with there setup. people screw up and try with a SMG or DSX aux and it's not gonna happen.. it will actually do 80 psi under load.
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Kong Ported 2650, Crawford Racing Port Injection, Weapon X 112mm Adapter, NW112mm TB, Livernois Ported LT4 Heads, Lingenfelter GT32 stealth cam, Haltech Elite, and Carbon by Trufiber |
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07-30-2020, 03:56 PM | #8 | ||
Drives: SS 6 speed of course Join Date: Jan 2016
Location: Hilo, HI
Posts: 4,317
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I would agree with you and I intend to run a completely separate system from tank and use all AN fittings, T, and hoses right to the HPFP. I will be actually pretty easy to modify the DSX setup to do this (I've been just lazy). To my mind the DSX setup is reasonable for 850 engine on E and street and / or drag racing use. The only caveat on my setup is I also run the LT4 in-tank. Above 850 engine, I'll leave that to the guys who know, I just know the factory fuel lines suck at the tank and just before the HPFP, also the LT1 high pressure line sucks and one should get an LT4 one with less bends. The first two issues CAN'T be fixed by a better or more pumps in the tank (nor voltage booster).
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Forged short block, large duration sub .600 lift Cam Motion cam, 7200 RPM fuel cut, Pray Ported Heads, 3.85 pulley D1X, stage II intercooler, DSX secondary low side, DSX E85 sensor, Lingenfelter big bore 2.0 pump, ported front cats, 60608 Borla, LT4 injectors, ZL1 1LE driveshaft and Katech ported TB, ported MSD intake, BTR valvetrain, ARP studs, ProFlow valves, PS4 tires.
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