piston
- Thread starter xero
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Citizen_Insane
Senior Member
Just for comparrison the B16a makes 160 with 10.2:1 and the b16a2 makes 170 with 10.4:1. To my knowledge that is the main difference (besides production years) in the engines. I don't know if it is a flat, linear, or expenential function so I don't actually know....
A 0.2:1 compression inrease alone isn't going to pick up 10 horsepower... tuning and fuel curves most likely have more to do with the power difference than a measly two tenths of compression.
As for your question, the general rule that people go by is typically 4-5% more power per FULL point of compression increased. 0.3% might get you a whole whopping 1% of power. It's not worth swapping your pistons just to change 0.3%, unless you want to change from cast to forged or something like that.
As for your question, the general rule that people go by is typically 4-5% more power per FULL point of compression increased. 0.3% might get you a whole whopping 1% of power. It's not worth swapping your pistons just to change 0.3%, unless you want to change from cast to forged or something like that.
