Rowdy burnouts and loud noises: The LSX/Subaru swap project
#621
![Default](https://ls1tech.com/forums/images/icons/icon1.gif)
After scouring the the local parts stores for a dipstick and tube the dealership actually had one in stock and it was the same price as rock auto shipped so my cheap-*** was sold. That was the last thing I needed to complete engine and assembly and that I just did.
I installed the heads with a bit of copper spray on the gaskets because I don't like to live THAT dangerously. Chased out the the deck holes and ran in the factory bolts again. Everything torqued fine, no sudden looseness from a TTY bolt that went a bit far. Fingers and toes crossed it will suck down 10 pounds like a fish in a drought.
Installing the pan meant cleaning it which meant a trip to the bathtub where a leak down test ensued. Low and behold that thing leaked like a siv. There were a few pinholes from some obviously dirty welds. A bit of wire brushing and a few beads and the pan could now survive the gulf coast. It was a bit humbling to have my first parts "failure" before even starting the car but i would rather find out now than later. Before final install I noted the new height of the pick up in relation to the windage tray and the relation between the dip stick and pick up. I should be very close to stock capacity if my math proves right.
I read many a horror story regarding LS balancers and the various woes of removal and installation. Coming off was a breeze a puller and going on was just as easy thanks to a torch. I heated the hub for about 30 seconds, greased the seal and it slid on with an audible thunk. That's a win in my book.
![](https://uploads.tapatalk-cdn.com/20190306/2538610df3af2072c8ff043be34399a8.jpg)
The truck intake has a few ports that I won't be incorpating that needed to be plugged. The first to go was I think might be an EGR return of some sort. Either way it's very closely sized to a GM IAT (Thanks Denmah for the wiki) at .524" and the port in the intake being .489". A little bit of carbide action (I just bought the Eastwood set, very pleased) and it slides right in.
![](https://uploads.tapatalk-cdn.com/20190306/a24206f475363d6499e2d513189de717.jpg)
A dab of permatex cold weld, none of that plebian JB Weld.
![](https://uploads.tapatalk-cdn.com/20190306/e6f329dc28345f4cc123ec15c5a038ff.jpg)
And it slides right in, fully exposed to the incoming airstream.
![](https://uploads.tapatalk-cdn.com/20190306/cdc7cdcde68f05e1d4db9723ed5d3958.jpg)
The next one on the hit list was the port next to the throttle body. Mine is built into the throttle body itself so I don't see the need for two. I tapped this one for a set screw, I didn't have any pipe plugs on hand so it went in with cold weld as well. I believe it was a 5/16" plug for those curious.
![](https://uploads.tapatalk-cdn.com/20190306/8751da1a16a9f5c7b81ba1c1cb34442d.jpg)
![](https://uploads.tapatalk-cdn.com/20190306/92ad624f6dd7ed3f2f077ab82a4c7ea5.jpg)
The last port was the MAP sensor. I have seen various ways of securing the sensor under boost pressure. The most popular was using a auxiliary bracket between the cover posts. I felt that left some room to leak so I tapped it for a barb. A 1/4 NPT tap goes right in without further enlargement of the hole.
![](https://uploads.tapatalk-cdn.com/20190306/20dfb3338caf1f2b775658d04d105105.jpg)
Planning ahead I knew I needed a brake light switch so I snagged a momentary switch from the hardware store and found a place on the pedal box it can be mounted. I knocked out this simple bracket in fusion to house the switch.
![](https://uploads.tapatalk-cdn.com/20190306/20e83cb5aa4a6cba8b0bffe76fe8b860.jpg)
And cut it out of some aluminum. I'll get it mounted this weekend to show you guys.
![](https://uploads.tapatalk-cdn.com/20190306/af354707b9443eefe15d250685fa8f5d.jpg)
I also decided on a clutch. I'm going with a Monster level 3 kit I believe. It's the 700/700 capable, AP slave, and billet flywheel. I'm going to go with the heavier one as that is what the monster rep recommended as well as my own theories.
I installed the heads with a bit of copper spray on the gaskets because I don't like to live THAT dangerously. Chased out the the deck holes and ran in the factory bolts again. Everything torqued fine, no sudden looseness from a TTY bolt that went a bit far. Fingers and toes crossed it will suck down 10 pounds like a fish in a drought.
Installing the pan meant cleaning it which meant a trip to the bathtub where a leak down test ensued. Low and behold that thing leaked like a siv. There were a few pinholes from some obviously dirty welds. A bit of wire brushing and a few beads and the pan could now survive the gulf coast. It was a bit humbling to have my first parts "failure" before even starting the car but i would rather find out now than later. Before final install I noted the new height of the pick up in relation to the windage tray and the relation between the dip stick and pick up. I should be very close to stock capacity if my math proves right.
I read many a horror story regarding LS balancers and the various woes of removal and installation. Coming off was a breeze a puller and going on was just as easy thanks to a torch. I heated the hub for about 30 seconds, greased the seal and it slid on with an audible thunk. That's a win in my book.
![](https://uploads.tapatalk-cdn.com/20190306/2538610df3af2072c8ff043be34399a8.jpg)
The truck intake has a few ports that I won't be incorpating that needed to be plugged. The first to go was I think might be an EGR return of some sort. Either way it's very closely sized to a GM IAT (Thanks Denmah for the wiki) at .524" and the port in the intake being .489". A little bit of carbide action (I just bought the Eastwood set, very pleased) and it slides right in.
![](https://uploads.tapatalk-cdn.com/20190306/a24206f475363d6499e2d513189de717.jpg)
A dab of permatex cold weld, none of that plebian JB Weld.
![](https://uploads.tapatalk-cdn.com/20190306/e6f329dc28345f4cc123ec15c5a038ff.jpg)
And it slides right in, fully exposed to the incoming airstream.
![](https://uploads.tapatalk-cdn.com/20190306/cdc7cdcde68f05e1d4db9723ed5d3958.jpg)
The next one on the hit list was the port next to the throttle body. Mine is built into the throttle body itself so I don't see the need for two. I tapped this one for a set screw, I didn't have any pipe plugs on hand so it went in with cold weld as well. I believe it was a 5/16" plug for those curious.
![](https://uploads.tapatalk-cdn.com/20190306/8751da1a16a9f5c7b81ba1c1cb34442d.jpg)
![](https://uploads.tapatalk-cdn.com/20190306/92ad624f6dd7ed3f2f077ab82a4c7ea5.jpg)
The last port was the MAP sensor. I have seen various ways of securing the sensor under boost pressure. The most popular was using a auxiliary bracket between the cover posts. I felt that left some room to leak so I tapped it for a barb. A 1/4 NPT tap goes right in without further enlargement of the hole.
![](https://uploads.tapatalk-cdn.com/20190306/20dfb3338caf1f2b775658d04d105105.jpg)
Planning ahead I knew I needed a brake light switch so I snagged a momentary switch from the hardware store and found a place on the pedal box it can be mounted. I knocked out this simple bracket in fusion to house the switch.
![](https://uploads.tapatalk-cdn.com/20190306/20e83cb5aa4a6cba8b0bffe76fe8b860.jpg)
And cut it out of some aluminum. I'll get it mounted this weekend to show you guys.
![](https://uploads.tapatalk-cdn.com/20190306/af354707b9443eefe15d250685fa8f5d.jpg)
I also decided on a clutch. I'm going with a Monster level 3 kit I believe. It's the 700/700 capable, AP slave, and billet flywheel. I'm going to go with the heavier one as that is what the monster rep recommended as well as my own theories.
#623
![Default](https://ls1tech.com/forums/images/icons/icon1.gif)
I still have the ECU/harness (EFI Source Gold box/24x LS harness) and the fuel pumps/rails of anyone would like those for a deal.
Last edited by Teddy-2000RS; 07-01-2019 at 07:52 AM.
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G Atsma (08-09-2021)
#625
![Default](https://ls1tech.com/forums/images/icons/icon1.gif)
Sorry to hear it.
I hope circumstances come together for you to take on another ambitious project soon. You've clearly got the drive and the skills to make something great.
![Sad](https://ls1tech.com/forums/images/smilies/LS1Tech/gr_sad.gif)
I hope circumstances come together for you to take on another ambitious project soon. You've clearly got the drive and the skills to make something great.
#626
![Default](https://ls1tech.com/forums/images/icons/icon1.gif)
![Winky](https://ls1tech.com/forums/images/smilies/LS1Tech/gr_wink.gif)