Origin7

Sunday morning, wheels off cleaning.

Getting kids around cars and giving them something to be passionate about is such a gift. Those small moments can have a profound impact. I went for my first ride in a Caterham when I was seven years old, and looking back, that experience probably played a big role in motivating me to pursue an engineering degree. My capstone project was a stress and strain analysis of a Locost chassis. Now, decades later, I’ve been fortunate enough to buy the very same car I first rode in as a seven-year-old. Today, my own kids (seven-year-old twins) absolutely love riding in it.

Thanks for the offer, Dan. I may be in touch.

I will very happily take these! PM sent!

Updated post to include roll cage.

From my non-automotive/industrial experience, if these sensors have an LED they typically pulse ON/OFF when triggered. If you're sure a metal object is passing through the viewing area, and you're getting nothing out, it's toast.

I'm not certain, but I think engine OFF, ignition ON is legal in most states.

I leave my ignition ON and watch the gauge as I fill. When I hit full, I stop. I probably don't quite get it as full as I can, but no mishaps yet.

Thanks @JohnCh It’s nice to hear about PET. I work in the industry and actually tried developing a recycled PET filament about a decade ago. It didn’t gain much traction at the time, so it’s great to hear it’s being used now. It’s a good material and readily available. I’ve also been experimenting with high-durometer TPU in the engine bay. I’ll report back on how that goes.

There is some good real estate under the steering column that I decided to put to good use. I used some brass heat-set inserts for threads. For everything outside the engine bay, I use PETG with carbon fiber. I highly recommend it. This area is a perfect fit for an Element Extinguisher. I realize these aren't as good as a bottle of novec 1230, but it will probably be sufficient for my needs.

@hahuang65 I am not sure how easy it would be from underneath, but if you can get the length, width, and height, you can calculate the approximate volume. Gallons = (LxWxH)/231

Curious why you'd remove the regulator. If the mechanical pump is maintaining 2-3 psi, maybe there is no benefit?

Can you get some rough measurements and calculate the capacity (roughly)? Then you know if you can only put 5 gallons in a 10 gallon tank, you have a problem. I am not exactly sure what that problem would be, but it's a starting point.

Great article and photography!

@IamScotticus fingers crossed. I'd rather be than wrenching at the moment.