KC38R TURBO 66/73 - 7.3 POWERSTROKE TURBO (L99 -03)
KC38R TURBO 66/73 - 7.3 POWERSTROKE TURBO (L99 -03)

KC38R TURBO 66/73 - 7.3 POWERSTROKE TURBO (L99 -03)

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Well the KC38R turbo is finally here, after a long year of KC Turbo development this gem of a turbocharger is ready to rock your project. The popular KC38r turbo is renowned for its ability to keep EGT's low and power production high.

We kept hearing about how great the s366sxe was... but with it being a standard rotation t4 turbo, it can be a little expensive to install on these trucks because it requires a "t4 kit".  

Inside the KC38R turbo

We wanted to see how a reverse rotation, drop in, 366sxe turbo would perform in our dual ball bearing KC38R turbo frame... 1 year later the KC38r 366 was born and the results are AMAZING!  It spools faster, runs cooler, and makes more power.  

All testers reported how much cooler and cleaner their trucks run with the updated version.  Some reported a 200 degree drop in EGTs.  The power comes on so much stronger and quicker with this new turbo, which makes towing and daily driving so much better.

KC38R turbo

KC38R turbo Specs

300254   KC38R 66/73 .84 7.3 Super Duty 66x73 Ball bearing
300255   KC38R 66/73 1.0 7.3 Super Duty 66x73 Ball bearing

**Polished covers can take 1-2 week lead time.**

Recommended injectors: 238cc/80%  

Minimum injectors: 180cc/30%

Maximum injectors: 250cc-100%

KC38r specs:

  • 4" ported housing with drilled hole anti-surge for high flow
  • 66mm 7x7 sxe style compressor wheel with extended tip technology
  • 73mm SXE style turbine wheel
  • Big Head Wastegate Actuator for elevated boost control
  • High Flow deleted EBPV outlet flange
  • Dual Ball Bearing turbo (rebuildable)
  • 100% drop in turbo
  • Comes with all gaskets and orings to install
  • Comes with new 4" intake boot

Although the turbo still has a 66mm compressor wheel, it is drastically different.  It is a larger, 7x7 wheel and is modeled after the 366sxe compressor wheel... same profile, shape, and blade style, except it is reverse rotation.  This wheel is not only bigger, but stronger.  It has thicker blades, thicker hub, and thicker backing, this makes it much less prone to fatigue and wheel burst.

The turbine wheel is much larger, 73mm vs the old 70mm.  It is also a much taller wheel with larger blades.  It does not just share the same "dimensions" of the sxe wheels.  It is the same shape, size, thickness, and blade profile as the s366sxe turbine wheel. 

Most people focus too much on the "compressor wheel" because that is what everyone can see, but the fact of the matter is 90% of the "turbo magic" comes from the turbine side of the turbo, and we did our due diligence to make this the best option on the market.

We also increased the thickness of the shaft to support the extra power and help make our turbos even more robust.  No other drop in 7.3 turbo on the market runs a larger shaft.  6.4mm vs 7.5mm

300254           KC38R 66/73 .84 7.3 Super Duty 66x73 Ball bearing
300255           KC38R 66/73 1.0 7.3 Super Duty 66x73 Ball bearing