We kicked off the weekend by installing that bit of hose we were missing, filling the coolant and power steering fluid, and addressing the TPS issue. By looking up the testing specs for both the Mustang and Merkur TPS, I determined they were the same in terms of voltage output and variation, so it was off to the junkyard, where I found this:
A green Festiva with coilovers! Once I was done admiring it, I walked another 20 feet to find our donor, which appears to have been running well enough to plow into something at speed:
Mustang TPS on the left, Merkur on the right:
It turns out the wires do the same things on both, left to right, so I just spliced them into the harness, added some loom, and you'd never know it isn't a stock part:
The car fired right up and, after adjusting the throttle stop and base timing, idled as well as a car with no idle control valve could be expected to. I even threw it in 4th and spun the whole drivetrain for a bit to prove that it works. Unfortunately, it looks like the turbo feed bung is leaking from a different part of the weld now- I guess welding to oil impregnated cast iron isn't the greatest idea:
I will try to grind it back and weld up that leak, but if it still leaks after that I'm coming up with a new plan. Under the car, I repaired the wires to the reverse light switch which pulled out of their connector when I forgot to unplug it while removing the trans, and welded this sacrificial flap in front of the cat and exhaust tip to hopefully make it live a bit longer than the last one:
We also gave the rear brakes a good bleeding since the lines had been opened up briefly, then reassembled the rear coilovers- the adjusting collars are stuck because they're a berkeleying stupid design that gets filled with dirt and crud, hopefully they will move after a week or so of PB blaster soaking because I'd like to experiment with a higher ride height:
I also chased our intercom issue- I took the actual intercom out of the equation using a microphone, a chromebook playing music, and a practice amp. Precision scientific E36 M3 right here:
Basically, using the chromebook/mic combo as an input, on the other side of a door so I couldn't hear it, I used the amp to power the helmet headsets while I listened to them and wiggled all of the connections. After doing it with both helmets, I determined they were fine and the problem was probably the intercom box itself. I hopped in the car and mimicked that setup using the actual intercom, and quickly found that the problem was the actual power connector on the back of the box- I added a zip tie for strain relief, we'll have to test it on the road but hopefully that was the whole problem, the wires were pulling on the connector pretty hard and making it so that any shift of the box (like from the wires to our headsets being pulled) would cause a small power interruption.
The strut situation continues to be unknown, but I have several plans:
A- Have the existing 41mm struts repaired and rebuilt as previously planned.
Pro: I like these struts. Minimal work on our part.
Con: No idea if it can actually be done or what their status is. Unobtanium inserts, housings, and components.
B- Build my own struts using 40mm inserts.
Pro: Readily available inserts and components. Should perform just as well as old 41mm struts.
Con: Lots of work. Possibly more expensive than option A. Might berkeley something up in design or execution.
C- Slap stock struts and springs from parts car on it.
Pro: I have them here right now.
Con: No bump stops, lousy damping, use lousy stock strut tops, weak.
D- Convert stock struts to coilovers using the sleeves I have on the shelf.
Pro: I have all the parts here right now, gets me adjustability and proper springs and bump stops.
Con: Lousy damping, use lousy stock strut tops, weak, a bunch of work for a half measure.
E- Buy road racing coilovers for a Tarmac setup, worry about rally stuff later.
Pro: Should be good for hillclimb, VIR rallysprint, tarmac rallies.
Con: Spending money on non-rally stuff.
It's probably going to be A or B, based largely on whether I can actually get any form of contact about the 41mm units I sent out two months ago.
The rest of the weekend was spent tearing my Buell in half.