2017 LS3 added LSA blower. Bent rods #1, and #2
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Joined: Apr 2011
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The lower compression of the LSA allows more boost and resistance to detonation. It's my humble opinion that a boosted, stock internals LS3 will never make quite as much power as the LSA. At least, as much reliable hp. I think you're playing with fire running much boost on any 10.5:1 static squeeze engine. Keyword is definition of "much.".....
Last edited by grinder11; Nov 30, 2025 at 08:56 AM.
The LSA blower will make boost right off idle. They will make all the boost by 2k rpm.
LSA tune has very low timing in those areas.
If this is a stick shift car, that amplifies the issue.
Those rods can bend without you knowing it. Once they bend to a certain extent, the pistons **** in the bore and the skirts break. Then you know it!
Guys think the knock sensors will save ya. But the knock retard you see in a log file is just the response of the ecu. The knock has already happened…..
LSA tune has very low timing in those areas.
If this is a stick shift car, that amplifies the issue.
Those rods can bend without you knowing it. Once they bend to a certain extent, the pistons **** in the bore and the skirts break. Then you know it!
Guys think the knock sensors will save ya. But the knock retard you see in a log file is just the response of the ecu. The knock has already happened…..
See the thread below......Last edited by grinder11; Nov 30, 2025 at 09:42 AM.