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11-19-2024, 05:15 PM
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#1 |
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Craig
Drives: 2019 ZL1 1LE Join Date: Jan 2019
Location: Peterborough, ON Canada
Posts: 440
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Katech A7502 vs A7503 for ZL1
I came across this video and I’m wondering if it’s worth getting the L86 version of the pump for the increased pressure since the car will be getting tuned and stuff anyways. Has anyone done this before opting for the KAT-A7503 over the KAT-A7502
https://youtu.be/oNbtdWReBM4 Last edited by 19Nasty1le; 11-19-2024 at 05:53 PM. |
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11-19-2024, 06:40 PM
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#2 |
         Drives: 2021 Red Hot ZL1 Join Date: Sep 2020
Location: GA
Posts: 3,493
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You know who would know best? Katech.
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11-19-2024, 10:22 PM
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#3 | |
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Moderator
Drives: 2017 Camaro 2SS A8 Join Date: Aug 2018
Location: Petersham MA
Posts: 6,202
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Quote:
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2017 Chevy Camaro 2SS A8 Whipple 3.0, Mast Black Label heads, ATI 8L90, Fore triple in-tank pumps, 112mm TB, LPE +52% injectors & BB HPFP, TooHighPSI/Katech port injection, 15” conversion 1066 WHP STD/1027 SAE, 9.10@152.5 (new times coming)
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11-25-2024, 03:56 PM
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#4 |
  Drives: 2015 Camaro ZL1 Join Date: Oct 2020
Location: Clinton Twp, Michigan
Posts: 323
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Minimal difference. The A7503 might make 5psi more oil pressure than the A7502.
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11-25-2024, 04:41 PM
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#5 | |
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Super Stock
Drives: Chevrolet Camaro ZL1 Join Date: May 2022
Location: Concordia
Posts: 783
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Quote:
I would stick to A7502 pump over anything else personally. It's made for ours, and is designed to follow the specs of our engines closest.
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2017 Red Hot ZL1 A10 - Apex ARC-8's, 305/ 325 PS4's, DSX 9.06 12% lower, Griptec 2.5 upper, NGK HR7 Ruthenium plugs, Nostrum 22+ injectors, XDI Goliath HPFP, Katech dual in tank low side pump, Katech oil pump, LME tensioner, DOD delete, LT1 big fuel cam, Jokerz ported blower, MPI lid, GMS hood extractor bracket, Soler ported 87mm (91mm eff) TB, Granatelli SS plug wires, Cordes LTR reservoir, DMS T-stat housing, 186* LS3 T-stat, Black Widow Angry Housewife/ Corsa NPP mufflers, Borla X pipe, BMR engine mounts, Banks iDash, Lithium Battery, AEM X- Series, HP Tuners, E85, 16.5 psi
834 HP/ 840 TQ  |
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12-31-2024, 11:37 AM
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#6 | |
 Drives: 2016 Chevrolet Camaro 2SS Join Date: Feb 2024
Location: Arkansas
Posts: 49
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Quote:
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01-01-2025, 08:02 AM
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#7 |
Drives: 2023 ZL1 - All Bolt On's Join Date: Dec 2022
Location: Columbus, Ohio
Posts: 1,188
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Correct, high pressure can mean lower volume is not good, this is a balancing act for the power your making. Take what's recommended. I had a great conversation with ZLElvira here on the forum (1.50 hours to be exact... whoa!) and he talked this over with me, oil cooling and pressure with the correct volume etc. Like a garden hose, put your thumb over it really tight and the pressure will be high but less water comes out, but apply the correct amount of pressure and you get the correct water flow under pressure.
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2023 ZL1 A10-Stainless Works 2" Long Tubes & Legend NPP Axle Back•GESI UHO 4.5" CATs•RF BigGulp•Kong 103mm & X-Ported Blower•Griptech 2.30" Upper•ATI Super Damper w/9.45" Lower•THPSI Port Injection w/875cc Injectors•FI Interchillers Stage 2•Brisk RR14S Plugs•Granatelli Malevolent Coils•Katech Low Profile Billet Valve Covers•Katech Duel Fuel Pump•MM Wild 1000HP•DSX Flex Fuel Kit•DSX Billet Lid•DMS 2gal Fender Tank•BMR Cradle Lockout•Weld Solana 18x8 Fronts/17x10 Beadlocks MT ET ST R's•Unlocked TCM•E85=785rwhp/691rwtq +21psi | 1/4=10.5005 @134.21 60ft=1.6182, 1/8=6.8373 @106.11
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