Single Remote Mount Turbo Build

[Prochargedchevyi]

Hey Guys,

I started my turbo build today and wanted to share a few pictures. This is the first of many updates I'll be doing, so make sure to check back if you're interested in this type of project.

After some planning, I've decided to do a single rear mounted turbo - mainly because I haven't seen one on a 5th Gen and I'm attempting something a little different. I built a similar kit for a cammed LS2 GTO and it ran a 10.1 at sealevel, so I'm hoping for decent results at this altitude (6000ft).

I'll be using a Turbonetics BB T76 .81 A/R using 2.5 pipe intermediary pipe. If I did my math correctly, the 42psi of back pressure the LS3 creates and the 2to1 merge into a 2.5", I should see full boost around 3100rpm - which I can totally live with.

Since I didn't want to completely fabricate new intermediary pipes, I searched around for a stock H-Pipe setup. My new best friend Larry (2010 SS RS) graciously donated his stocker to me so I could do this build. Thanks again Larry!


So this is what I started out with. Just a plain Jane exhaust system off of a 2010 SS.



The first step is to brace the two pipes together. There's A LOT of cutting involved and the most important thing to do is keep the pipes perfectly separated so that everything will line up with the manifolds once it's ready to be installed.

I just used to some extra 1/4" flat stock I had laying around. Nothing fancy.





Next came the cutting. I made the cut approximately 9" from the first 90* bend and continued down through the intermediary plate (H-Pipe). The trick is to remove enough pipe so that the merge will connect where the old H-Pipe was. We'll get to the actual fabrication of the merge further down the thread.



After the initial cut was made, I had to remove the stock H-Pipe section. It was faster to make a new section and notch it for a merge than using the existing H-Pipe hole. So the first step was to remove the old section.



Remember the other side of the exhaust that I removed? Well I reused some of the straight pipe to make my new section (I'm big into recycling scrap).

[Prochargedchevyi]

Before I cut into my main exhaust, I made sure to mark the pipe with a Sharpie so I can make sure everything lines up before I weld it.



Then I made the "real" cut.



Before I started to tack weld the pieces in place, I made sure to level the tubing faces to ensure that the pipes sat flush.



Then I started to tack



Before making the final welds, I made sure the piping was lined up and level.

[Prochargedchevyi]

Next came creating the merge pipe. I had some extra 2.5" exhaust bends from my old Corvette, so I cleaned them up and began cutting.



I forgot to take a picture of the hole cutting process, but basically I used a 2 1/8" bi-metal hole saw and then a die-grinder to enlarge the hole. The picture below shows the merge pipe "mouth" tack welded in.



After measuring the distance between the two pipes, I used some extra scrap from the other side of the exhaust and joined the two pipes together.



After doing the final welds, I cut off the bracing and the hardest part of the build was done.




Next week I'll be posting the positioning of the T4 flange, removing the resonator and cutting/fitting the Wastgate pipe.

Stay tuned!

Vince

[Silver2SSRS6spd]

Originally Posted by Prochargedchevyi

Hey Guys,
I

After some planning, I've decided to do a single rear mounted turbo - mainly because I haven't seen one on a 5th Gen and I'm attempting something a little different.

You want to see a wild rear mounted turbo, check the one out at the link below.

http://www.camaro5.com/forums/showthread.php?t=38022

[Prochargedchevyi]

Originally Posted by Silver2SSRS6spd

You want to see a wild rear mounted turbo, check the one out at the link below.

http://www.camaro5.com/forums/showthread.php?t=38022

Very nice, but it's not a SINGLE rear mounted turbo...

Unless I'm missing something.

[Silver2SSRS6spd]

Originally Posted by Prochargedchevyi

Very nice, but it's not a SINGLE rear mounted turbo...

Unless I'm missing something.

You are not missing anything, just wasn't sure if you saw the dual setup. Good luck with your build, I'm subscribed!

[Prochargedchevyi]

Originally Posted by Silver2SSRS6spd

You are not missing anything, just wasn't sure if you saw the dual setup. Good luck with your build, I'm subscribed!

[Prochargedchevyi]

So after some interesting feedback I received on another board, I'm going to redo my merge pipe. Apparently I used too many transitional bends that would could turbulance and inhibit the flow; so I'm going to rebrace the pipes and do something like this. Don't mind my awesome MS Paint skills....lol

[Z_Rocks]

Originally Posted by Prochargedchevyi

"This house is protected by the good Lord and a gun. You'll meet both if you show up uninvited."

So, I suppose the "uninvited" will meet the gun FIRST, than soon after, he'll meet the good Lord...

[Prochargedchevyi]

Originally Posted by Z_Rocks

So, I suppose the "uninvited" will meet the gun FIRST, than soon after, he'll meet the good Lord...

Pretty much....I actually named my rifle St. Peter because that's who will greet you before the pearly gates.... My attempt at levity

[franknbeans]

looks neat. . . can't wait to see the end product.

[Silver2SSRS6spd]

Originally Posted by Prochargedchevyi

Pretty much....I actually named my rifle St. Peter because that's who will greet you before the pearly gates.... My attempt at levity

[Boost6924]

Very interesting. Something different. Looking forward seeing the end result.

[Silver2SSRS6spd]