11-26-2020, 08:47 PM | #1 |
Drives: 2020 Rally Green ZL1-1LE Join Date: May 2020
Location: Illinois
Posts: 323
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Low lift Cammotion Cam lobes
Has anyone had long term experience with using softer lobes (sub .600) in a daily driver? I'm wondering how much longer will a set of springs last if I get a Cammotion custom grind with somewhere between .570 to .590 lift.
Also thinking about installing PRC heads with bigger valves. Will the larger valves make up a bit for the lower lift? Thoughts? |
11-28-2020, 10:52 PM | #2 |
Drives: 2023 CT5 Blackwing Join Date: Sep 2016
Location: Orlando
Posts: 1,618
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Sub .600 lift is the way to go for valvetrain longevity.
The GM hotcam is a .577 with a 1.7 rocker.
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11-29-2020, 12:23 AM | #3 |
Drives: 2016 1SS NFG A8 Join Date: Aug 2017
Location: 46804
Posts: 6,800
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^Agreed.
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2016 NFG 1SS A8
Options-2SS Leather/NPP Perf. mods-Whipple 2.9/Fuel System/Flex Fuel/103mm TB/Rotofab Big Gulp/Cat Deletes/Corsa NPP Per. times- 10.5 @ 137 w/ 1.8 60ft Full weight on 20's 1200DA |
11-29-2020, 02:13 PM | #4 |
Drives: 2020 Rally Green ZL1-1LE Join Date: May 2020
Location: Illinois
Posts: 323
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Thanks for the confirmation!
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11-29-2020, 05:58 PM | #5 | |
Sarcasm loading --------
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Quote:
Cam swaps are expensive - you would be looking at about 4k out the door, and swapping the cam for a small to medium HP gain would not be worth the cost. I would go with a maggie before doing a cam swap.
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2018 MBM ZL1 1LE - Stock 2014 CRT ZL1 574 rwhp, 537 rwtq - SOLD 2010 IBM SS Camaro VVT L99 w/ TR6060 swap, 489 rwhp, 444 rwtq - SOLD |
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11-29-2020, 06:35 PM | #6 |
Drives: 2016 1SS NFG A8 Join Date: Aug 2017
Location: 46804
Posts: 6,800
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One of the biggest reason for a cam is to get a larger fuel lobe to over drive the high side pump and increase fuel system headroom. So yes while it is expensive there is a point where it becomes necessary to make more power if trying to fuel the engine DI only.
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2016 NFG 1SS A8
Options-2SS Leather/NPP Perf. mods-Whipple 2.9/Fuel System/Flex Fuel/103mm TB/Rotofab Big Gulp/Cat Deletes/Corsa NPP Per. times- 10.5 @ 137 w/ 1.8 60ft Full weight on 20's 1200DA |
11-29-2020, 10:27 PM | #7 |
Drives: 2020 Rally Green ZL1-1LE Join Date: May 2020
Location: Illinois
Posts: 323
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Eventually, its getting a 2650 too. For starters, I'm doing PRC heads, a cam, head studs, lifters, and fuel system upgrades for E85.
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11-30-2020, 07:12 AM | #8 |
Drives: 2022 Lt1 A10 Join Date: Nov 2015
Location: clark, mo
Posts: 8,860
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Green you'll make some serious power with the 2650 Heartbreaker. Go get it.
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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
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