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We all know drilling and tapping the block for oil return is simple and it is.
But
Drilling and tapping for oil to the turbo is very difficult without the right tools. The reason is the oil galley is on the back side of the motor and you have to drill between clinder 1 and cylinder 2.
Well with the right tool anything is possible. I designed this tool back in 1998. It fits down in the turbo outlet boss and aligns the drill bit to go true right between the cylinders ti the back oil galley. Nice and clean and costs less than buying all the fittings to run oil from back of the block to the front with fittings and braided hose.
This is how I did the VVL block for my friend G20T build
http://www.sr20-forum.com/vvl/45110-freshly-built-ve-t-94-g20t.html
Hope you all like.
Here is the tool I designed.
![](http://i1235.photobucket.com/albums/ff422/Andreas_Miko/04291439.jpg?t=1304106401)
Here is it in the block.
![](http://i1235.photobucket.com/albums/ff422/Andreas_Miko/04291445.jpg?t=1304106452)
![](http://i1235.photobucket.com/albums/ff422/Andreas_Miko/04291446.jpg?t=1304106556)
Finished results after VE block is tapped.
But
Drilling and tapping for oil to the turbo is very difficult without the right tools. The reason is the oil galley is on the back side of the motor and you have to drill between clinder 1 and cylinder 2.
Well with the right tool anything is possible. I designed this tool back in 1998. It fits down in the turbo outlet boss and aligns the drill bit to go true right between the cylinders ti the back oil galley. Nice and clean and costs less than buying all the fittings to run oil from back of the block to the front with fittings and braided hose.
This is how I did the VVL block for my friend G20T build
http://www.sr20-forum.com/vvl/45110-freshly-built-ve-t-94-g20t.html
Hope you all like.
Here is the tool I designed.
![](http://i1235.photobucket.com/albums/ff422/Andreas_Miko/04291439.jpg?t=1304106401)
Here is it in the block.
![](http://i1235.photobucket.com/albums/ff422/Andreas_Miko/04291445.jpg?t=1304106452)
![](http://i1235.photobucket.com/albums/ff422/Andreas_Miko/04291446.jpg?t=1304106556)
Finished results after VE block is tapped.
![](http://i1235.photobucket.com/albums/ff422/Andreas_Miko/04291442.jpg?t=1304106608)