Quote:
Originally Posted by Joshinator99
Smart move getting the boost number down. At 7-8 PSI on 93 you should be OK and LT4 fueling can drive that no problem. 
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You still have to very aggressive with the IAT vs spark retard table because the engine won't take much timing once it's hot. You are looking at a massive difference from cold (meaning first start and warmed up) dyno pull vs being heat soaked from driving dyno pull. I don't know how many times I have said this, and it falls on deaf ears. That 570whp dyno pull is a cold pull. Not a realistic real-world number. 480-520whp is realistic safe numbers for a LT1 with 7-8psi on 93 when hot. Now switch to a E50 blend and it will make consistently 570-600whp in almost any conditions.
I don't know about you, but I would rather have a setup that can make sustained power in various conditions, vs a setup that is extremely reliant on perfect conditions to make power.
A lot of shops and companies are not going to admit this because they would sell a lot less parts. How many less supercharger kits would a company sell if they were truthful and said: 93 octane will work but not recommended. It's recommended to upgrade fuel system and run a E50 blend minimum or race fuel for the best and most reliable results.