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androo007 wrote:When you put forged pistons in the car you can lower the compression which typically reduces the chances of knock on the same scinareo as standard pistons.
However knock isn't something that's prescribed at a particular boost level,if you are seeing knock you need to look at your setup and see what the weak link is
, or run higher grade fuel.
blogsy wrote:Just have to ask this.If a car hits knock at 1.1 bar with a Apexi power ecu but makes 283hp at the flywheel on standard pistons
, why would forged pistons make any difference.
It will still set of knock at 1.1 bar.
Dale_V wrote:blogsy wrote:Just have to ask this.If a car hits knock at 1.1 bar with a Apexi power ecu but makes 283hp at the flywheel on standard pistons
, why would forged pistons make any difference.
It will still set of knock at 1.1 bar.
forged pistons wont stop it knocking, the'll just"cope" with the knock more than stock pistons will.
The solution really is to tune properly as previously stated.
Martin F wrote:Dale_V wrote:blogsy wrote:Just have to ask this.If a car hits knock at 1.1 bar with a Apexi power ecu but makes 283hp at the flywheel on standard pistons
, why would forged pistons make any difference.
It will still set of knock at 1.1 bar.
forged pistons wont stop it knocking, the'll just"cope" with the knock more than stock pistons will.
The solution really is to tune properly as previously stated.
So in theory you could run 500 bhp on standard pistons, the ringlands being the weak link obviously though![]()
Gazza_DJ wrote:I'm sure I recall a thread on here 2 or 3 years ago of someone trying to achieve that on stock internals![]()