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Kevin C
Trail Leader

Reged: 05/20/00
Posts: 6033
Loc: No where in particular

Re: VIBRATION From Engine?
11/17/07 02:12 AM

The 2.6 has a pretty long stroke for low end torque. A long stroke gets you higher piston speeds and makes the 4 cyl sahke problem worse.

Once they had a design with the ballance shafts having light pistons and rods as not as much of an issue and a long stroke 4 cyl was as smooth as a six cyl... So the 2.6 gets some pretty beefy parts and a long stroke for good torque.

Want to do a 4 cyl without ballance shafts? Use a short stroke, light rods and pistons and tune the major components that are bolted to the motor to have a high resonant frequency.

Kevin

--------------------
87 Dodge

Post Extras

Entire topic
Subject	Posted by	Posted on
VIBRATION From Engine?	Quinnchuck	11/01/07 10:44 AM
Re: VIBRATION From Engine?	Chris009	11/16/07 08:45 PM
Re: VIBRATION From Engine?	Quinnchuck	11/16/07 11:29 PM
Re: VIBRATION From Engine?	Kevin C	11/17/07 02:12 AM
Re: VIBRATION From Engine?	Kevin C	11/02/07 01:58 PM
Re: VIBRATION From Engine?	toddstidham1	11/04/07 10:46 AM
Re: VIBRATION From Engine?	Kevin C	11/04/07 11:09 AM
Re: VIBRATION From Engine?	powerRam50	11/04/07 11:27 AM
Re: VIBRATION From Engine?	Quinnchuck	11/04/07 01:31 PM
Re: VIBRATION From Engine?	Kevin C	11/04/07 01:45 PM
Re: VIBRATION From Engine?	Quinnchuck	11/16/07 11:09 AM
Re: VIBRATION From Engine?	toddstidham1	11/02/07 07:42 AM
Re: VIBRATION From Engine?	weebur	11/01/07 11:14 PM
Re: VIBRATION From Engine?	Quinnchuck	11/02/07 01:11 AM
Re: VIBRATION From Engine?	powerRam50	11/01/07 01:23 PM

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