Why no hybrid L61/LSJ builds?
10-15-2013, 11:42 AM
#101
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A 2.7 stroker TVS sounds so tempting...perhaps my next build 
current purebred LSJ swapped 04 Cavalier here. Timing the trigger wheel to be exact isn't easy but not too bad. Also a thing to note is the crank pulleys are different between the engines. An LSJ cp is flat on the front so the trigger wheel fits nicely. The LE5 and L61 cp's have bumps on the 3 arms that reach out so you have to compensate with washers or something. The good thing is you can just swap pulleys, just keep in mind the L61 only has 5 ribs vs the LE5/LSJ 6 rib pulley (L61 requires you go cut off a rib when using the LSJ belt if you don't swap the cp out).
I cant wait to see what this engine can do tuned with my mods. Jbody by sight, Cobalt by flight! lol
current purebred LSJ swapped 04 Cavalier here. Timing the trigger wheel to be exact isn't easy but not too bad. Also a thing to note is the crank pulleys are different between the engines. An LSJ cp is flat on the front so the trigger wheel fits nicely. The LE5 and L61 cp's have bumps on the 3 arms that reach out so you have to compensate with washers or something. The good thing is you can just swap pulleys, just keep in mind the L61 only has 5 ribs vs the LE5/LSJ 6 rib pulley (L61 requires you go cut off a rib when using the LSJ belt if you don't swap the cp out).
I cant wait to see what this engine can do tuned with my mods. Jbody by sight, Cobalt by flight! lol
My LE5 came with a 5-rib pulley, my motor came out of a G6 Sedan so that could be the reason. It was identical to the L61 pulley, in fact I am still using it on my setup.
Also, I did a LE5/LSJ with L61 full valvetrain setup a few years ago now, still running strong 3 years later. Still running it on my "improper" external crank sensor setup as Mr.Belvedere called it 3 years ago when I was building it...LOL We are cool tho dude.
Didn't even see this post till now, I never venture into the LSJ subforum often, but if anyone has any questions just shoot me a PM.
Mr.Belvedere: What are you charging for those sleeves? And can I swap them using the GM (Kent-Moore) sleeve puller?
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10-21-2013, 05:29 AM
#109
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Build thread from page 30.....
vx220 major rebuild | Page 30 | Z22SE.co.uk
10-21-2013, 07:11 AM
#110
I am running a 2.5 hybrid ecotec, basically darton sleeves bored out to 90mm, JE pistons, carrillo 2.4 rods, 2.4 crank in a saab/LSJ block, running throttle bodies
Build thread from page 30.....
vx220 major rebuild | Page 30 | Z22SE.co.uk
10-21-2013, 10:32 AM
#112
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We have lots of banter between itb's and sc over here, the sc boys hate the fact the itb's are quicker
08-20-2015, 05:32 PM
#115
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So I have an 07 2.2 liter that I just put lsj rods and Pistons in and the top of the piston sticks out of the bore 4mm or so. What gives?
08-20-2015, 10:04 PM
#117
the lsj has a shorter stroke and rod then the 2.2 and a higher compression height on the piston the piston on a lsj sticks out of the bore .050 to .060
you need to get an accurate measurement of how far the piston is sticking out of the bore it may not be as far as it looks because 4mm is .156 and with the head gasket having a compressed thicknes of .027 you would have to get a custom head gasket made by cometic because the piston may hit the head
08-21-2015, 11:25 PM
#118
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the 2.2 has a lower compression height on the piston and a longer rod(.075 longer then the lsj i believe) and stroke i dont know how far the piston sticks out of the bore on a 2.2
the lsj has a shorter stroke and rod then the 2.2 and a higher compression height on the piston the piston on a lsj sticks out of the bore .050 to .060
you need to get an accurate measurement of how far the piston is sticking out of the bore it may not be as far as it looks because 4mm is .156 and with the head gasket having a compressed thicknes of .027 you would have to get a custom head gasket made by cometic because the piston may hit the head
the lsj has a shorter stroke and rod then the 2.2 and a higher compression height on the piston the piston on a lsj sticks out of the bore .050 to .060
you need to get an accurate measurement of how far the piston is sticking out of the bore it may not be as far as it looks because 4mm is .156 and with the head gasket having a compressed thicknes of .027 you would have to get a custom head gasket made by cometic because the piston may hit the head
08-22-2015, 09:18 PM
#120
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It's an 07 l61 going into an 05 Saturn ion four door. I have a complete wiring harness with Ecu. I know the pin out is going to get re-pinned to the bcm. So who makes custom Pistons? I need a piston with a lower compression height. Or eagle rods and wiseco Pistons. If I run the supercharger and a 3.1 pulley how much boost will that be and can the factory piston handle it? Do I absolutely need 60# injectors or will the stock lsj injectors be adequate. Trying to do a (no) budget build without my wife getting mad at me.
08-23-2015, 10:12 PM
#123
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The Pistons literally protrude 3mm out of the block. Do lsj Pistons have Saab on them? Maybe I don't have the correct ones! I bought them on eBay, so this is a possibility. I will post picures the next time I'm working on the engine.
08-23-2015, 10:18 PM
#125
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I would really like to purchase a set of Diamond Pistons and eagle rods. Need funds though. $600 bucks on eBay, lol! Would much rather buy else where.