If I remember my physics, higher compression is more efficient and it extracts more energy out of a chemical reaction. That's the reason why disel engines are so much more fuel efficient, they have 15:1 or so compression.
So stock 2.3L w/ 9.7:1 produces roughly 60 tq/liter at the wheels. Which is pretty usual for N/A motors. I've noticed that w/ high compression pistons (12:1)most modern engines usually make 70 tq/liter.
So on an other wise stock engine (just CAI) pistons should add (70tq/l * 2.3L)=161wtq, 161 - 140 = 21 lb-ft of Torque. Close the redline I would expect 10-12lb-ft gain.
So let's assume duratec makes 120 lb-ft + 12 = 132 lb-ft tq @ 6000rpm.
That's 132*(6000/5252) = 150whp vs. ~137 w/ just intake.
So my assumption is that 12:1 pistons on a stock engine w/ just intake will produce around 161 lb-ft TQ, 150whp.
Adding 20 lb-ft torque and 13whp.
Does this make sense?
So stock 2.3L w/ 9.7:1 produces roughly 60 tq/liter at the wheels. Which is pretty usual for N/A motors. I've noticed that w/ high compression pistons (12:1)most modern engines usually make 70 tq/liter.
So on an other wise stock engine (just CAI) pistons should add (70tq/l * 2.3L)=161wtq, 161 - 140 = 21 lb-ft of Torque. Close the redline I would expect 10-12lb-ft gain.
So let's assume duratec makes 120 lb-ft + 12 = 132 lb-ft tq @ 6000rpm.
That's 132*(6000/5252) = 150whp vs. ~137 w/ just intake.
So my assumption is that 12:1 pistons on a stock engine w/ just intake will produce around 161 lb-ft TQ, 150whp.
Adding 20 lb-ft torque and 13whp.
Does this make sense?
