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XFI vs LSL lobes

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Old Jun 1, 2009 | 02:34 PM
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Default XFI vs LSL lobes

I am currently considering a cam based off of either of these lobes for my stock bottom LS2. I have AFR heads and .650 springs. 224/230 XFI or 227/227 LSL. What is the way to go for a 90% street 10% drag car? I am aware that either lobe should have the springs changed every 25K or less.
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Old Jun 1, 2009 | 09:21 PM
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anyone?
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Old Jun 1, 2009 | 10:06 PM
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Comp makes a 223/231 .600ish lift cam with LSL lobes. Its about the same as the XFI cam but more aggressive. My brother bought the exact one for his Camaro, but hasent installed it yet.
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Old Jun 2, 2009 | 07:40 AM
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According to Billy Godbold, the creator of both lobes at Comp, the LSL lobes give superior valvetrain stability over the XFI lobes and will make more power. They tested the LSL lobes for 10 months before releasing them. More development than any other lobe in their history.
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2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
2016 Corvette Z51 M7 Magnuson Heartbeat 2300 supercharger, TSP LT headers, Pat G tuned, 667rwhp, 662rwtq, 191mph TX Mile.
2009.5 Pontiac G8 GT 6.0L, A6, AFR 230v2 heads. 506rwhp/442rwtq. 11.413 @ 121.29mph 1/4 mile, 168.7mph TX Mile
2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAE, 183.092 TX Mile
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Old Jun 2, 2009 | 09:44 AM
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Originally Posted by Patrick G
According to Billy Godbold, the creator of both lobes at Comp, the LSL lobes give superior valvetrain stability over the XFI lobes and will make more power. They tested the LSL lobes for 10 months before releasing them. More development than any other lobe in their history.

They have other lobe designs available Patrick.
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Old Jun 2, 2009 | 10:00 AM
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Originally Posted by Ed Curtis
They have other lobe designs available Patrick.
True statement. But the OP was inquiring about just the two catalog lobes. Between the two, the LSL lobes tend to work better on the 55mm cam cores (Billy's words, not mine).
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2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
2016 Corvette Z51 M7 Magnuson Heartbeat 2300 supercharger, TSP LT headers, Pat G tuned, 667rwhp, 662rwtq, 191mph TX Mile.
2009.5 Pontiac G8 GT 6.0L, A6, AFR 230v2 heads. 506rwhp/442rwtq. 11.413 @ 121.29mph 1/4 mile, 168.7mph TX Mile
2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAE, 183.092 TX Mile
2022 Cadillac Escalade 6.2L A10 S&B CAI, Corsa catback.
2023 Corvette 3LT Z51 soon to be modified.
Custom LSX tuning in person or via email press here.

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Old Jun 2, 2009 | 09:59 PM
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In a similar setup we just did a h/c AFR combo for a customer and ground a custom cam using the LSL lobes 231/235 113 +3 were the specs for a Firehawk with 411 gears.
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