Building T (part 2)

Drove the Spyder the 100 miles or so to Mechanicsburg and then to the Carlisle Import and Performance Nationals last weekend, and the car pleased the crowds in Building T and elsewhere as expected—though not without a few complications.

We started out a few days before with an oil change and a chance to clean up some minor issues.

This sump plate had been dripping just a bit for years—the farthest right stud was short and its acorn nut was missing the copper washer. I bought a new gasket set and changed it out, adding that center drain plug while I was at it. The result? No “marking of the territory” for the first time since I’ve owned the car.

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Replicomparisons

502 Motorworks is currently auctioning off its second Spyder build on Bring a Trailer [Update 11/3: the $160,000 high bid did not meet reserve]. It is a stunning replica, in all aluminum, of an original 550 late production low-rail car—accurate enough to have received an FIA historic race passport, meaning it is cleared to potentially campaign against real historic race cars including original 550 RS Spyders.

The car, equipped with a Porsche 1500 “Super” pushrod engine, reportedly cost most of $300,000 to build. This puts it in the stratosphere of the replica world. The kind of thing the owner of a real 550 would buy so he’d have something to drive on the road—or the track.

Which is to say, it’s far beyond comparison to my modest home garage effort.

But let’s do it anyway.

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Oil cooler added (and sway bar improvements)

Testing the Spyder on public roads brought new data: she was running too hot. Even on a cool morning, ambient temps 80F, driving easy (30-45mph) on flat roads, the oil temperature gauge crept up past 80, past 100 (i.e. 212F), up near 110C. That’s close to 230F, and at that temp VW gurus say you better shut ‘er down and investigate. Good modern oils like the Brad Penn we’re using don’t really mind those temps, and racers run long-term with oil over 260F.

But 230F in a Type 1 means the heads are probably too hot. Hot heads on a Type 1 engine are bad for longevity.

I ran the car for over an hour one morning, took video, and shut down when the gauge got up over 105C.

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Captain Underpan, Deux

A word about COVID-19. Not long after I made my last post here the nation locked-down due to a global pandemic of a dangerous respiratory virus. Everyone knows that right now, of course, but if this blog persists more than a few years it won’t necessarily be obvious what was happening outside of the context of the build.

The pandemic and its response has crashed the stock market and the real economy, prompting a $2 trillion federal aid package. Something like 20 percent of everyone is out of work. I myself am still “working” from home but am functionally unable, as of yesterday, to do the state court visits my job normally requires. My wife is working from the dining room table and we’re both still being paid, at least for now, and remain healthy.

But currently 200,000 or so Americans are confirmed to have the virus and some 3,000 have died, as the epidemic’s trajectory continues relentlessly upward. The world is a very scary place and frivolities like this car project have largely taken a back seat, even as I knock off the last few dozen tasks on my punch list. The Maryland Motor Vehicle Administration offices are closed, some reportedly converted into drive-through virus testing sites. So instead of getting the car on the road this month, it may be a while.

That said, here’s what happened through February as I (blissfully, ignorantly) worked to make the aluminum undertray.

First I had to make two “stub-out” bits to cover the exhaust pipes on each side just aft of the engine crossmember. These are simple U-shaped bits, mainly, about 8 inches long, reaching from where the pipes exit under the engine to just past the muffler flanges.

I got them in and screwed them to the main underpan piece with self-tapping sheet metal screws, then set about making transition pieces to get to the wider full muffler parts. Once there I knew I could just drape aluminum over the mufflers and the tunnels would be done.IMG_4807

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