As an FYI, you are about the only YT'er that I remotely trust to promote a VPN service, so I did.

you didn't include the RPM's from the Jag, the comically large scooter, the drill press, or the bicycles...

You should get one of those cheapo handheld oscilloscopes. Its really useful when you wanna find out why something is not working.

@@hoffmanbike hoffmambike, extra points.....

Okay, i have to know. Which engine can take days to turn a full cycle once? Google isn't being cooperative.

Why change the oil if you only need to fill it up

I had a car like this. Saved a lot on filters.

@@timlamein9637 something something nissan vq engines

Positive [ish] Pressure Rinse!

turned it into a total loss engine just like speedway bikes

A wise man once said, anytime you hear someone say "that's easy" that is a person who does not understand the problem.

@@joels7605 100% truth.

wow! how do i relate so much to this

I do the opposite.. To paraphrase Richard Dawkins: "The number of times I've gone to the garage with intentions of getting things done and end up standing around smoking and watching youtube, outnumber the sandgrains of Sahara"

I don’t have any nice clothes. I just have clothes that I haven’t ruined yet.

@@SuperfastMatt scoot over, i'm in that same boat

@@SuperfastMatt I had some nice shirts. They all have welding spatter holes in them now. I no longer buy nice shirts.

On the way to the rehearsal dinner my father in law's jeep broke down, my dad and I went right to fixing it. My wife was not happy, and my mother responded "look at his father, this will not change"

My animation skills top out at Keynote, which allows rotate but not mirror. I thought, “Nobody but Eric will notice.”

@@SuperfastMatt Does that also make me Eric?

David noticed too

Damn, I don't want to be an Eric, but now I am... 😔

Don't be Eric t-shirt please🤔

Its what i woud have done just not on purpose

My ex did a similar thing when I ruined a new, rather fancy, rather expensive and my only shirt the first time I wore it. I dropped a bit of butter on it which ruined the nap or the sheen or whatever it's called... I'm no fabricologist. It never occurred to me to just dunk the whole thing in vegetable oil but it worked a treat.

for the next 10,000 km

What weight of oil did you use? I had the same thing happen, so I just added more to the rest to make it look consistent. Problem was during the winter, until my shoes warmed up, I got a really bad insole slap that eventually wreaked havoc and was left stranded on the side of the road,,,,😂

@@shakeydavesr depends on the shoes. with work boots its better to use a thicker more heavy duty oil that can hold up to the abuse, whereas with runners a lighter oil is better because it increases efficiency of the shoe allowing for slightly better performance.

I bought an oscilloscope just for home for this very reason aha! Though the ecu tuning software does have a 'built in trigger scope'

Limited Edition World Record Holding Leather Shoe Conditioner.

Look at you with your fancy optical pickup. Flexing on us magnetic pickup guys like that!

I should try that for an old honda engine I'm rebuilding, I'm already modding the hell out of it so why not

@@darekmistrz4364 Remember those really old computer mice that had the ball in them? I took the phototransistor and LED out of an old computer mouse, added a couple other components then slathered it in JB Weld. It was pretty ghetto but it worked amazing. You can make one very, very easily. If I were to do it again I'd probably throw some aluminum on my mill and machine a proper bracket, and probably use a little pen laser module instead of an LED.

@@joels7605 Look at you flexing with you mill on us poor driveway-workshop guys like that!

Once you go optical you’ll never go … floptical?

and as mentioned in a previous episode...spending 4x as much trying to cobble a 1x solution that you thought was too expensive to begin with.

Is this the verbal version of magic smoke?

@@OperationDarkside It means that the input works with normal crank sensors and doesn't require a hall-effect ignition pickup.

See, but if he did that. He would have ruined a perfectly good pair of shoes for nothing. Much better to laser cut and weld new parts.

As long as Matt doesn’t put on Daisy dukes…

@@rb70383 Coming soon! Matt's significant other (is he married?) wears Daisy Dukes!

@@austinclark8727 Wondered that with garage speed runs !

The VR sensor has fairly high internal resistance (on the order of 1kohm), so the parallel resistor also drops the voltage at the input.

He has an oscilloscope. Used it in the Tesla door handle video for example.

That is basically only reason I bought oscilloscope for - to diagnose ignition and rpm trigger signal problems :D

Pretty sure Matt is a EE and has a sillyscope

The mega squirt/tuner studio basically has one built in.

Yeah, basic dc voltages are fairly simple but once you start shaking them on long unshielded wires weird shit starts happening and those capacitive coupled/reflected/basically antennas get a bit complicated to diagnose without the right tools.

What commercials did he star in?

Nice tip. Ta :)

Also put some (duct) tape in the hole, sticky side toward the grinder, you catch most of the shavings, and you can block off the opening to your oil pan.

This comment needs more appreciation

aaaaaand this didn't age well haha

There's your problem right there. 😀. Well, one of your problems.

My 1930 Model A Ford engine idles at 400 rpm and zings up to its redline of 1,800 or so. The flywheel weighs more than 50 pounds. You can easily count the individual firing pulses. A different set of issues.

@@davesmith9325 Trabant disposal big problem, no ?

That's the odometer, each thumb-width of rise on the nut equals a nice round 50 miles (in 3rd and 5/8ths gear).

Additionally at 13:12 that spin-y thing on the shock thing. It looked to be rotating with the vibration

I also noticed the dancing nut. I hope it wasn't something of catastrophic consequence.

This seems like a pretty good solution; also, maybe if the whole issue is that the threshold needs to climb with RPM, it would just need to be a variable resistor that could change with RPM? All of this is easier said than done though

@@zgrb Yeah, though perhaps in a more “active” sense - eg perhaps the rpm is converted into a control voltage that is used for a comparator to track the right signal from the sensor to derive the pulse from for instance. The issue with the resistors as is, appears to me to be about providing the right impedance to the ecu - an active buffered solution would be a powered device that monitors the sensor and “re-generates” effectively an “ideal” signal to the ecu. By using a lower impedance driver / buffer and a constant pulse magnitude over rpm, I don’t think the resistance to the ecu would be as critical over rpm range. Would be a fun project to mess around with though for sure!

I agree that sounds like an ideal solution, but another tricky bit is making sure the signal conditioner is consistently fast enough. I'm wondering if instead of an active conditioner you could use some form of Schmidt trigger. Not sure that would be any better though. It's one of those things that's easy on paper but gets really complicated in the real world. Would be a fun project to dig into.

I prefer XT-60 and XT-90