Reply to "CV Joint Conversion ?"

I am the 'Chicago' guy who did the CV axles on the 4.6 conversion. I had to perform the conversion because of a vibration caused when I moved the engine back 1 1/2 inches. When the engine was moved back, it set the Axles at a 10 degree angle. Normally they are 4 degrees. The maximum recommended angle is 3 degrees. The vibration was caused by the center section accelerating and decelerating twice every revolution. This is a phenomemon of U-joint axles. The more the angle, the worse the effect. This Accel/Decel causes a power loss because of inertia. The higher the RPM, the more the loss. CVs operate on a Constant Velocety, hence the name, and dont have the power loss.

The conversion was done using Drag Racing axles of a similar design to Porsche axles. They are overkill and can handle 7500 lb/ft of torque. And NO, that is not a typo. They are used behind many 1200+ hp drag cars. Normal Porsche axles are capable of about half of that. These were of stock length and thus used thicker spacers. To make the spacers lighter, I used aluminum. This is a special high strength grade of aluminum and is stronger than mild steel. If I were to do it again, I would change the design just a little.

The conversion cost $900 for the axles, $400 for the spacers, and about $50 for bolts.

I have been asked about selling the conversion or doing a group buy. I have considered it. But have decided not to. There is too much liability. If someone broke an axle and got into a wreck, and killed someone, I could be sued and loose everything I have. The risk is not worth it.

Here is a pic of the parts.