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Quote:

Originally Posted by Randy@ddmworks

The problem is that the 2.4 is a long stroke motor. The Piston speeds at 6500RPM are approching longevity/safety limits. I have it on very good authority that 7k is the most you would want to turn the 2.4 in it's current configuration. Also, there are flow issues at higher RPMs with this engine. Look at all the dyno sheets and see how quickly torque falls off after 5500 rpm, it's a flow thing!

Yeah, but you could de-stroke it using a forged crank from a 2.0L or a 2.2L....

	Mallard Member Join Date: Dec 2005 Location: Rochester Hills, MI	Quote: Originally Posted by Randy@ddmworks The problem is that the 2.4 is a long stroke motor. The Piston speeds at 6500RPM are approching longevity/safety limits. I have it on very good authority that 7k is the most you would want to turn the 2.4 in it's current configuration. Also, there are flow issues at higher RPMs with this engine. Look at all the dyno sheets and see how quickly torque falls off after 5500 rpm, it's a flow thing! Yeah, but you could de-stroke it using a forged crank from a 2.0L or a 2.2L....