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Old 08-10-2021, 10:17 AM   #35
KingLT1


 
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Drives: 2016 1SS NFG A8
Join Date: Aug 2017
Location: 46804
Posts: 7,661
No that is not accurate...lot's of variables come into play. On 93 octane with SBE yes that is probably a safe limit. If you install a cam to bleed off some dynamic compression you can go a bit higher on 93. Spend the money on a fuel system so you can run E50+ fuel, you can likely go 700-750whp. The key is keeping cylinder temps in check so the rings do not butt and/or crack a piston.

High compression, boost, and 93 octane is a very limited combination with pistons that were designed for NA. Hell it's even limited(octane wall) if the rings were gapped for boost. E85 loves compression and has been a game changer for years. The old LS1 was similar to the LT1 in regards to power limit with boost. They would only tolerate about 600whp on 93 with the stock long block. Then when E85 started getting popular you started seeing SBE LS1's handling 7-750whp without failure. Same scenario here other then the fuel systems are a lot more complex and expensive to upgrade. So band-aid methods have been commonly used to supplement fuel and many LT1's have failed as a result.
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2016 NFG SS A8/Whipple 2.9/Fuel System/Flex Fuel
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