Where can I find the engine specs on my 2.0L , like compression , bore, stroke etc ?

 

no one knows ?

 

Engine: Ecotec 2.0L SC (LSJ)
Type: 2.0L supercharged/intercooled inline 4-cylinder
Displacement (cu in / cc): 122 / 1998
Bore & stroke (in / mm): 3.39 x 3.39 / 86 x 86
Block material: cast aluminum with cast iron cylinder liners
Cylinder head material: cast aluminum
Valvetrain: chain-driven dual overhead camshafts with roller followers, 4 valves per cylinder, dual rotating balance shafts
Ignition system: coil-on-plug coil-on-plug
Fuel delivery: sequential fuel injection
Compression ratio: 9.5:1
Horsepower (hp / kw @ rpm): 205 / 153 @ 5600
Torque (lb-ft / Nm @ rpm): 200 / 271 @ 4400
Recommended fuel: 91 octane unleaded
Maximum engine speed (rpm): 6450 fuel cutoff
Emissions controls: 3-way catalyst (Tier 2 LEV 2 Bin 8 )
Estimated fuel economy(mpg city / hwy / combined): TBD

 

you are the man , thanks a million . I'm currently working with comp cams to find the right cams for my car : )

 

If you do a set of cams try to upgrade the springs as well. That will let you up the redline.

 

yea I planned on it , I'm trying to finish my car by aug. for the GM bash so hopefully everything goes smoothly

 

nice info man

 

THE best place to find that sort of data is the GM Powertrain web-site

http://media.gm.com/us/powertrain/en...g%20trans.html
Enjoy
(and dont forget to check out the Chevy LS7 and Cadillac LH3 horsepower and torque graphs!! )
WopOnTour

 

what is the lsj

 

It's the name of our engine

 

hmmmm i wonder if we can yank our balance shafts like i can in my DSM's

 

Anyone notice the maximum gearbox torque is written at 258 lb for the LSJ transmission ? That's only 29% more than stock ...

 

Hard to do as you need the balance shaft chain to run the water pump (AND their bushing/bearings are part of the oiling system)
BUT GMPP offers a pair of billet aluminum "neutral" shafts to replace the stock shafts.
A bit pricey, and you will have to contend with a bit more engine vibration at lower RPMs
Wop

 

wow that 07 2.0 ecotec for the soltice is wild the torque band looks like this
___________________________________________
flat lol

 

Does any one know the Hp/torque amount that each part can handle ??(i.e. cams block connecting rods pistons ect.)

Thanks

 

Did you also notice that the Trans is the same as the Colorado, Sky, Solstice, Hummer H3 and is rated at a "Maximum engine torque: 258 ft/lbs"

The block construction is also impressive.

 

LSJ = LS Jr.

 

http://www.new-cars.com/2005/chevrol...alt-specs.html

Seemed to be QUITE informative on the entire vehicle.

 

manual.lsjowners.com
some good info i compiled in there too

 

LSJ springs have have rated at 7500rpms, along with valves and retainers.

 

lol, thats probably right... too bad our motors look and perform nothing like its bigger LS brothers....