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DieselSite Wicked Wheel 2 for the Garrett BallBearing Powermax GTP38R / Aftermarket "D66" 7.3 Powerstroke
DieselSite Wicked Wheel 2 for the Garrett BallBearing Powermax GTP38R / Aftermarket "D66" 7.3 Powerstroke
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The 66 model will have better bottom end, quicker spool, and lower EGTs towing.
The 38R model will produce more peak hp.
If you have stock injectors or have larger hybrids with tuning to pull back power, the 6x6 model will be better.
If max power is important and you have larger injectors, the 38R model will be better.
If you have an aftermarket "D66" style turbo with an unported compressor cover, the 66 model is a perfect choice.
Before removing the compressor cover, ensure it can rotate 360 degrees. To eliminate the need to find the right index again after reassembly, use a marker to mark a line across the break in the separation joint in the cover at two different spots. When you reassemble the housing, you line up your old lines, and you will save yourself a lot of time.
Attached is a dyno graph taken at Power Hungry Performance on Jason's truck. This truck has 250/200 injectors, a GTP38R, and PHP tuning. The results are with only a wheel change. No tuning has been done to try to take advantage of the newfound air volume.
Typical results are improved throttle response, increased power, reduced smoke, increased boost levels.
Special Note: This turbo has a standard right hand thread - meaning you turn the compressor wheel to the left to loosen. No need to torque the Wicked Wheel on. Simply snug the Wicked Wheel until it fully seats. It will self-tighten to full torque. The Wicked Wheel is balanced at the factory. Turbo balancing after installation is not necessary.
FOR USE IN FORD 7.3L PSD AFTERMARKET GARRETT BALL BEARING GTP38R POWERMAX TURBO AND AFTERMARKET "D66" TURBO
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