Here's another rabbit-hole project I am building into her.. I have seen a few threads on lightening the existing wiper and linkages, and mention of the use of a 944 rear motor (NLA) and I have seen those 79-80 Sciroccos with single wipers.

The route I am trying has the goals of 1. passing inspection, 2. keeping my wind shield clean in light rain for limited time (ie not expected to deal with huge downpours, ice or now) and 3. lightweight and 4. accomodate a single wiper in fitting in the the streamlining I have done on the rest of the car.

I settled on using a rear wiper motor from a Jeep, across their range from the 90's through the 00's. Interestingly it arrived and is a Valeo unit. So before anyone gets all insulted for putting Jeep parts on a Porsche, its the same manufacturer that makes many of our alternators and regulators.

THe unit is very small and lightweight. WHen I get a chance I will dig up the original motor and linkage and compare the weights.

The dimple the wiper arm sticks through the body fits the Valeo unit perfectly. Of course I have 2 of the dimples to accommodate the original wipers so having confirmed there is plenty of room under the dash for a bracket and the motor, I plan on cutting out both dimples and relocating one of them to the center of the car. Then patching in the two old arm hole.

I weighed up the OEM motor, linkage, and wiper arms and got 4.08kgs.

The new unit weighs 1.08kgs and the arm and wiper 246g so 1.33 kgs altogether.

So that's 2.75 kgs or 6 lbs savings up relatively high.

The wiper motor cost $61, and I am estimating ~6 hours of bodywork involved (removing the old "dimples" and patching them in, fabricating a bracket for the new motor.

Detail shots of the ‪#‎356C4S‬ chassis merge. We 3D scanned the 964 suspension points, tunnel, rear seat area etc and then scanned the 356 chassis to determine merge zones. Under the front hood the only giveaway will be the strut towers poking through the inner sidewalls. Once both body's were cut and the 964 was shortened myself and @cowboydanger started the sheet metal blending between bodies. Now we have a fairly seamless integration that once finished off will be hard to determine what has been done. And no... The blue tie downs aren't permanent. Note the 2.6L 4cyl 911 engine, G64 Trans and 996TT front diff will blend for a unique 356 power plants.

Not your typical 356 belly... Today we got the mock up engine and trans back in after all the suspension and chassis merging was completed. 356 + 964C4 + 996tt = #356C4S Wrap up the rear engine mounts the next couple days and then it's time to build the roll cage and finish off exterior body.