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GTO Twin Turbo Build |
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Click On Images For Large View |
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The first step of the build is to strip the engine
compartment down to make room for the turbos. |
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drivers side view with the exhaust manifold, ECM, and
coolant reservoir removed. |
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Passenger side view with the exhaust manifold, cruise
control, and ABS module removed. |
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The ABS module will have to be
relocated to make room for the turbo. |
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Here is another view of the ABS module. |
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On the drivers side, the coolant reservoir and the ECM
occupy a lot of real estate, but they should be easy to relocate. |
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With the coolant reservoir out of the way, the ECM is
now exposed on the drivers side frame rail. |
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The ECM is removed and now it's time to start
fabricating. |
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To start, we install 3/8" laser cut exhaust
manifold flanges to the heads |
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We then weld a collector onto the turbos exhaust
housing flange and position it in the general location for the turbo. |
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Next we weld a couple of steel rods to keep everything
in place as a jig while we start piping the exhaust manifolds. |
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It's important to make the jig strong enough to
stay in shape, but still able to be taken apart. |
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Here's a shot of the finished jig for the passenger
side. |
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Now we'll place the turbo onto the jig and see how it
looks. |
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With everything looking good, the jig is removed from
the car so that the piping can be cut and fit into place. |
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Using various J-bends and U-bends, we start planning
the general layout of the exhaust manifolds. |
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First cylinder completed. |
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Notice that we leave plenty of room for the remaining
cylinders. |
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Here are a couple of different perspectives. |
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The other piping is now fabbed into place. |
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Halfway to completion. |
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