Upgrades For Stock Turbos?

[Two Lane]

Does anyone make/stock/sell bell-mouth inlets & ported elbows, etcetera, as bolt-on upgrades for the stock factory turbos?

TIA!!

 

[1of1035]

I know Kirban,Poston and ATR all sell the inlet bells for stock turbos. Not sure about the elbows.

 

[UNGN]

Originally posted by Two Lane
Does anyone make/stock/sell bell-mouth inlets & ported elbows, etcetera, as bolt-on upgrades for the stock factory turbos?

TIA!!

This is why God created the dremel tool.

Polish the inside of the inlet bell to a smooth finish and scribe the ID onto the face of the stock turbos compressor scroll. Use a marker to mark where the leading edge of the compressor is (place it on a blade tip, spin it around)

Carefully remove the scroll and port from about .5 inches inside the scroll to the scribed line. Don't touch the part of the scroll near the wheel leading edge (use masking tape to ensure no nickage) Polish to a smooth finish (outlet too) and your compressor is ported. Use sanding rolls or cutters dipped in grease to keep them from loading up.

For the elbow, open the throat to 2.6" and smooth the short side radius. When you are done a 2.6" diameter ball should pass freely through the elbow. Double cut carbide cutters cut cast iron like butter.