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post #1 of 9 (permalink) Old 06-02-2010, 10:48 AM Thread Starter
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Connecting Rods

Would replacement LSJ connecting rods fit on a 2.2?
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post #2 of 9 (permalink) Old 06-02-2010, 11:19 AM
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Quote:
Originally Posted by acnelson4 View Post
Would replacement LSJ connecting rods fit on a 2.2?
well they have LSJ rods for 2.2 you just got call around few machine shops, but i would rather use eagle- cheaper, stronger, up to 800 hp and some people even say the quality is better then lsj
Eagle Connecting Rods 02-07 2.2 GM Ecotec Cobalt

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post #3 of 9 (permalink) Old 06-02-2010, 11:30 AM
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but theyre like 600 bucks. im pretty sure you can use lsj rods since theyre the same stroke

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post #4 of 9 (permalink) Old 06-02-2010, 11:45 AM
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According to the site, $320 plus shipping.



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post #5 of 9 (permalink) Old 06-02-2010, 11:49 AM
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ok and heres LSJ ones 2.0 and 2.2 PAUTER RODS for 2.0/2.2L ECOTEC LSJ

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post #6 of 9 (permalink) Old 06-04-2010, 10:30 AM Thread Starter
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Thanks guys. It looks like the Eagle rods are nearly the same price as the LSJ replacements so it would seem that they are the better choice, being after market and all. Do the weights of the rods have an effect on engine performance? (like faster/higher revving) or is this negligible? and in the case that it does, does anyone know how much lighter/heavier either of these are over stock?
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post #7 of 9 (permalink) Old 06-04-2010, 11:09 AM
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Lower rotating mass is always better, so yes weight does matter. Idk about the weights of the two though, sorry.

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post #8 of 9 (permalink) Old 06-04-2010, 01:29 PM
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i'm also curious to see what the general consensus is



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post #9 of 9 (permalink) Old 06-04-2010, 01:42 PM
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Quote:
Originally Posted by acnelson4 View Post
Thanks guys. It looks like the Eagle rods are nearly the same price as the LSJ replacements so it would seem that they are the better choice, being after market and all. Do the weights of the rods have an effect on engine performance? (like faster/higher revving) or is this negligible? and in the case that it does, does anyone know how much lighter/heavier either of these are over stock?
there's a few things to consider. for drag racing, more rotating mass is good because it keeps the torque band up during high rpm's. more momentum. for autox you want engine response, so a lighter rotating mass will give you better throttle response and it will be quicker through the rpms. realistically, this topic is better off in a big block vs. ecotec argument and is not really something to worry about. unless you want a race motor that you know you'll be taking apart often lightening the rods is not the best thing to do for a street car because it weakens them.

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