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-   Do It Yourself, Boating on a Budget (https://www.offshoreonly.com/forums/do-yourself-boating-budget-249/)
-   -   502 running (https://www.offshoreonly.com/forums/do-yourself-boating-budget/378443-502-running.html)

SB 02-28-2023 11:38 AM
I believe You have it backwards.

DrFeelgood 02-28-2023 11:40 AM
Low boost in an automotive application, you could probably do ok with hypereutectics. They don't tolerate detonation at all so boost must be kept low or the tune must be kept very conservative (or carb jetting very rich). The load in a marine application is more than automotive and the margin of safety will be less.

Zole 02-28-2023 11:53 AM
Originally Posted by SB (Post 4860559)
I believe You have it backwards.
Profesor corect me when im wrong...so it is the other way around...forged expande more then cast pistons.Yes?

Zole 02-28-2023 11:59 AM
Originally Posted by DrFeelgood (Post 4860560)
Low boost in an automotive application, you could probably do ok with hypereutectics. They don't tolerate detonation at all so boost must be kept low or the tune must be kept very conservative (or carb jetting very rich). The load in a marine application is more than automotive and the margin of safety will be less.
So keep my boost low(6psi) and rich fuel and i should be fine.Add advance around 35 dg and keep my fingers crosed:pray:


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