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Thread: 6l lsa

  1. #1
    Advanced Tuner
    Join Date
    Aug 2013
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    australia
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    6l lsa

    Any one had experance tuning a stock compression 6L with a LSA blower, it's running 13 psi and seems to get a lot of knock down low around 1500-3000. It will make about 13psi at 1500rpm that's a lot of boost at low rpm!, I can make it knock less with f all timing but it runs like a bag of shit. On the dyno it would make more power as I would add timing but I could hear knock at any thing above 12 deg but it would still make more power with more timing and not just up top it would be over the hole rev range. So any thoughts on this boost level at this comp?

  2. #2
    Tuning Addict
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    Jan 2015
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    Franklin, NC / Gainesville, Ga
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    Pull plugs and see if you've got cylinders more lean than the others... You may just have carbon built up on top of certain pistons causing the knock your hearing... You should honestly be good for a touch more timing - so I would say investigate what's causing the rattle...
    2010 Vette Stock Bottom LS3 - LS2 APS Twin Turbo Kit, Trick Flow Heads and Custom Cam - 12psi - 714rwhp and 820rwtq / 100hp Nitrous Shot starting at 3000 rpms - 948rwhp and 1044rwtq still on 93
    2011 Vette Cam Only Internal Mod in stock LS3 -- YSI @ 18psi - 811rwhp on 93 / 926rwhp on E60 & 1008rwhp with a 50 shot of nitrous all through a 6L80

    ~Greg Huggins~
    Remote Tuning Available at gh[email protected]
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  3. #3
    Advanced Tuner
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    Aug 2013
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    australia
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    364
    I can add timing but knock retard will pull it, I might get some race gas or try a e85 tune and see what happens.