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LSJ-T Swapped Cav Build

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Old 08-12-2015, 06:45 PM
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LSJ-T Swapped Cav Build

So I have been asked to post the build process up by a few people. Wasn't going to post because it is not a cobalt. Here it is. It will be a slow going project mainly due to the fact that I have a full time job two kids a side business and only a couple hours a day to work on it. Questions comments flamming welcome.

Here is the donor car a 2006 SS that was rolled
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Got her in my shop to start gutting
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Starting to pull motor
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Engines out getting ready for swapping some cavalier items over to it.
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Harness 80% ran in cavalier some minor things to figure out
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Cobalt switches adapted to cavalier column
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Cobalt Throttle modified to fit in the cavalier
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Anyone know what injectors these are Yellow is Accel 32 Are they 32 lbs/hr? Green is Siemens and has a number on it of 12790B27 but cant find anything on them.
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Still have a few things that need to be figured out. I have to figure out what to do about starting the car. What things in the harness can be eliminated, I need to find a intake manifold to use the stock lsj throttle body. and Im sure some other things I haven't thought of yet. The car is not a daily driver it will see little road and a lot of track time.
Old 08-13-2015, 11:50 AM
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green is stock
Old 08-26-2015, 06:31 PM
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I am using the whole wiring from the cobalt, but there are things from the cobalt that will not work in the cavalier. The steering column being one of them will not fit without a ton of modification it was much easier to modify a couple other things to fit the j.

Here are a couple parts that have shown up the last couple days

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Just waiting on the BSD bushings to show up they just shipped today, once they are in the motor will get buttoned up and dropped in. After that start hooking everything up and get the trans in place. Still have some parts I know I need to purchase, I need to do something for an intake manifold, injectors, and also have to figure out MAF sensor location and get the tubing for it.

And here is the cobalt fans modified to fit the cavs griffen radiator

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Old 08-26-2015, 06:43 PM
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Looks like it's going to be a cool project!
Old 08-26-2015, 08:33 PM
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Nice! Pics of cavi?
Old 08-26-2015, 08:50 PM
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LSJ-T Swapped Cav Build

sweet build keep us updated i doubt rhere will be much flaming here its a cool ecotec project
Old 08-26-2015, 09:08 PM
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very cool man. post pics of cavi
Old 08-26-2015, 09:18 PM
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Don't forget about the importance of weight reduction!
Old 08-26-2015, 09:32 PM
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Very nice! Great to see the J-bodies still getting love! For those members to know "J-Bodies" are the cavalier/sunfires.
Old 08-27-2015, 01:17 AM
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Originally Posted by TurboTechRacing
Very nice! Great to see the J-bodies still getting love! For those members to know "J-Bodies" are the cavalier/sunfires.
dont forget sunbirds, the buick skyhawk, olds firenza and cadilac cimmeron. but you gotta be an early j-body guy to know that
Old 08-28-2015, 08:48 AM
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This makes me want another z24
Old 08-28-2015, 09:14 AM
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Cool build. The injectors in question are the stock LSJ injectors (as Mrbelvedere mentioned).

34 lb/hr
Old 08-28-2015, 10:57 AM
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Very nice. Wanted to do something similar to my jbody. If I find a decent donor I may just do it.
Old 09-01-2015, 06:24 PM
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Finally got my lzm bushings in balance shaft delete is done and new timing chain is installed. Motor is almost ready to drop in.

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My oil cooler block off we made at work have an extra if anyone would like one

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and does anyone know what these to wires and connector are for it was destroyed in the wreck

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Old 09-01-2015, 06:32 PM
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I don't believe you can just block off the oil cooler. Mr. B or someone who knows for sure should chime in
Old 09-01-2015, 06:35 PM
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I pulled out the sleeve in the rear hole. I thought that was all that needed to be done if someone could chime in for sure that would be great
Old 09-01-2015, 06:43 PM
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Originally Posted by ECaulk
I don't believe you can just block off the oil cooler. Mr. B or someone who knows for sure should chime in
I think Mr b made that adapter plate to run a aftermarket oil cooler elsewhere like behind the grill
Old 09-04-2015, 07:33 PM
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Got this in thr mail today

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Old 09-04-2015, 07:56 PM
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Another cool lsj tvs cavalier thread
https://www.cobaltss.net/forums/pict...aveblu-307412/
Old 09-04-2015, 09:58 PM
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Originally Posted by Haven07
I think Mr b made that adapter plate to run a aftermarket oil cooler elsewhere like behind the grill
He does, I've installed one. But it doesnt block it off, it becomes a larger flow through
Old 09-14-2015, 03:58 PM
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Quick update got the engine in just waiting on my flywheel and clutch to get built so I can get the trans in and and start laying everything out looks like the brake fluid resivour may be in the way will have to wait and see

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Old 09-14-2015, 07:57 PM
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Looking great.
Old 10-04-2015, 02:39 PM
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Finally have had a chance to get some work done on the car. I have been so busy lately with customer cars and life in general. Progress on the car will be slowing down a littlw just watching my cash flow with just having purchased my wife a new car. (2015 ford fusion ecoboost) which will be modded when the warrenty is up. But in the meantime here is a shot of the progress in the past couple days. My only thing im not sure of is what to do in place of the vents. There is no heating or cooling in the car anyone have some good ideas?


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Yes its twisted a little moved when bonding but will correct it when im done.
Old 10-04-2015, 03:48 PM
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this is great on so many levels. Glad to see people still being innovative for one. Second I have love for cavaliers that no one but my friends who have owned one seems to understand. Three combining the motor with the lsj body = sex!

cant wait to see this thing when done!
Old 10-06-2015, 08:16 PM
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saw a classy cavi this morning made me think of this haha


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