stock rods forged?
06-19-2008, 02:00 AM
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06-20-2008, 03:37 AM
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06-20-2008, 10:31 AM
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06-20-2008, 10:50 AM
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06-20-2008, 10:52 AM
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Yes the Rods are forged... The crank shaft is not but the pistons are curved and oil cooled to reduce friction. Lol i talked to bill hahn for an hour on his 2.4 solstice turbo build.
06-22-2008, 05:40 PM
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06-23-2008, 02:55 PM
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I doubt they are... because the build book suggests you have to upgrade them at the same power level as for the 2.2 ones.
Plus as they are the exact same size and length as the 2.2 ones, I won't be surprised they are exactly the same ones
http://tunersource.gmblogs.com/Racer...06appendix.pdf
Plus as they are the exact same size and length as the 2.2 ones, I won't be surprised they are exactly the same ones
http://tunersource.gmblogs.com/Racer...06appendix.pdf
06-23-2008, 04:28 PM
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I doubt they are... because the build book suggests you have to upgrade them at the same power level as for the 2.2 ones.
Plus as they are the exact same size and length as the 2.2 ones, I won't be surprised they are exactly the same ones
http://tunersource.gmblogs.com/Racer...06appendix.pdf
Plus as they are the exact same size and length as the 2.2 ones, I won't be surprised they are exactly the same ones
http://tunersource.gmblogs.com/Racer...06appendix.pdf
It was funny, settle down.
Last edited by maverick0716; 06-23-2008 at 04:28 PM. Reason: Automerged Doublepost
06-23-2008, 08:50 PM
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06-24-2008, 10:04 AM
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yes they are forged.. i some how stumbled on an sae file with the 2.4 specs in it
Type: Ecotec 2.4L I-4
Displacement: 2384cc (145 ci)
Engine Orientation: L ( longitudinal ) T ( transverse ) L / T
Compression ratio: 10.4:1
Valve configuration: dual overhead camshafts
valves per cylinder: 4
Assembly site: Spring Hill, Tenn.
Valve lifters: hydraulic roller finger follower
Firing order: 1 - 3 - 4 - 2
Bore x stroke: 88.00 x 98.00mm
Fuel system: sequential fuel injection
Fuel Type: Premium recommended not required
Block: cast aluminum
Cylinder head: cast aluminum
Intake manifold: composite
Exhaust manifold: high silicon molybdenum, cast nodular iron
Main bearing caps: aluminum bedplate
Crankshaft: cast nodular iron
Camshaft: cast nodular iron
Connecting rods: forged steel
Additional features: extended life spark plugs
extended life coolant
electronic throttle control
variable valve timing
unitized exhaust manifold/catalyst (G6)
dual converter system
Type: Ecotec 2.4L I-4
Displacement: 2384cc (145 ci)
Engine Orientation: L ( longitudinal ) T ( transverse ) L / T
Compression ratio: 10.4:1
Valve configuration: dual overhead camshafts
valves per cylinder: 4
Assembly site: Spring Hill, Tenn.
Valve lifters: hydraulic roller finger follower
Firing order: 1 - 3 - 4 - 2
Bore x stroke: 88.00 x 98.00mm
Fuel system: sequential fuel injection
Fuel Type: Premium recommended not required
Block: cast aluminum
Cylinder head: cast aluminum
Intake manifold: composite
Exhaust manifold: high silicon molybdenum, cast nodular iron
Main bearing caps: aluminum bedplate
Crankshaft: cast nodular iron
Camshaft: cast nodular iron
Connecting rods: forged steel
Additional features: extended life spark plugs
extended life coolant
electronic throttle control
variable valve timing
unitized exhaust manifold/catalyst (G6)
dual converter system
06-24-2008, 01:15 PM
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06-24-2008, 01:24 PM
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06-24-2008, 01:25 PM
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http://media.gm.com/us/powertrain/en...tec/08_LE5.xls
ok i found the one for the 2.2... technically it's forged but they're forged powder metal instead of forged steel like on the 2.0 and 2.4..
the one for the lsj is being tempermental right now but i'll make a new thread
Last edited by elecblue06; 06-24-2008 at 01:45 PM.
06-24-2008, 03:46 PM
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Search for this title on gmtuner source, 104742-enginehandbook-complete-web and it says specs about the 2.2 on page 83 (the book page). It never really says if the rods are forged, it just talks about upgrading them and they are good to 250hp It says the crank is cast.