11-14-2025, 10:49 AM
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#14
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Super Stock
Drives: Chevrolet Camaro ZL1
Join Date: May 2022
Location: Concordia
Posts: 1,004
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Quote:
Originally Posted by KingLT1
On race gas a LPE big Bore & +50 injectors should support 1100+whp. +65's would likely support 1250-1300.
Moral of the story, I think you will need the LPE pump and larger injectors. Or go Port as Josh mentioned.
I don't have any experience with the Goliath pump, but that is interesting to know they don't like 38% lobes. But I do know some shops have been moving back to 32% lobes for longevity purposes regardless of the high side pump type.
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I believe they are dialing back the fueling lobe because they are finding that as the lobe gets more and more aggressive the lobe becomes more triangular in nature/ shape and therefore could lead to a decrease in physical lobe profile longevity due to additional wear. It makes sense that they are doing that. That alone is what made me grab a cam that had a 32% lobe and nothing larger. At the time my line of thinking was that it should provide me all the fueling that I need for my build and then some, but if I ever needed more, I could just get a Goliath and make up the difference without needing to do the cam again and cause premature wear.
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2017 Red Hot ZL1 A10 - Apex ARC-8's, 305/ 325 PS4's, DSX 9.06 12% lower, Griptec OE upper, NGK HR7 Ruthenium plugs, Nostrum 25+ injectors, XDI Goliath HPFP, Katech dual in tank LPFP, Katech oil pump, LME tensioner, DOD delete, LT1 big fuel cam, Jokerz ported blower, MPI lid, GMS hood extractor bracket, Granatelli SS plug wires, Cordes LTR reservoir, DMS T-stat housing, 186* LS3 T-stat, Borla X pipe, Black Widow Angry Housewife/ Corsa NPP mufflers, BMR engine mounts, Banks iDash, Lithium Battery, AEM X- Series, HP Tuners, E85, 16.5 psi
758 HP/ 804 TQ
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