24 July 2018

Ugh, too warm and humid to be do much, but I visit the Midlana Builder’s forum several times a day. Progress is being made on several builds there, but as warned of in the book, Life gets in the way now and then–it’s just how it goes. Several of the builders are getting closer though, and hopefully that’ll ignite some urgency in the others, hah.

Speaking of motivation, I keep getting told that I don’t promote myself, the car, or the book enough. I understand, and even agree, but it’s because I really dislike pushy ads and salespeople, so I don’t like to do it to others. Nothing shifts me to the opposite tact faster than someone pushy selling something. I had a guy  selling a bottled water service show up at the door, and when I opened it, said “uh oh.” For a second, I thought he was going to take a swing at me – he got really angry. I was curious how he planned to transition to asking for money, or maybe he planned to demand it. I suspect he realized no sale was going to happen and kinda went off the rails after that… but I digress.

So yeah, I do plan to do some promotional stuff, more shows and videos – when it cools off, which around here is October or so. There’s also all the other stuff: cold air inlet, new engine cover, wings, and so on.

16 June 2018

Finally swapped in the Inconel turbocharger mounting studs. Hopefully this stomps out that failure mode for good.

I also had the pleasure of again meeting Martin Waide at a dinner party, ex-Lotus engineer from back in its heyday.  To talk to someone who worked for Colin Chapman himself,  and with Graham Hill and Jim Clark, is just, wow, expanding my world while at the same time making it feel a lot smaller. It’s like finding a little window through which to peer back into history, marveling at the golden age of racecars.

He asked many questions about Midlana and not unexpectedly, surrounding guests rolled their eyes and moved away as we went into suspension design. Since car design is such a niche, I don’t discuss it much because I know that it’s not at all interesting to most people, but, get me in the same room with someone who works in the field and off I go.

I’m going to meet up with him again so that he can check out Midlana; not as “look what I did” but to get a real engineer’s perspective on its design.

7 July 2018

Still here – building a cover over the pond filtration and wiring it with proper GFI outlets instead of the spider web of extension cords I had before. That’s done, but work on the car is postponed due to the first heat wave of the season; it’s currently 101.8F outside and high 90’s in the garage. Just before dawn it was 75F, hah.

On the car, the cold air (hah) intake, wings, and engine cover remain to be done. There’s a driver’s school in September which got my interest because they claim they’ll be running a large-diameter wet skidpad, something I’ve always wanted to run Midlana on (though it means me and the car getting drenched). With all the recent changes (engine, turbo, tune, transmission ratios, differential upgrade, shock settings, and new tires), Midlana’s capabilities cannot be  legally and safely tested on public roads. I say they “claim” they’ll be running it because having water trucked in for the purpose is reportedly around $800, so I want to make sure they’re really going to do it before signing up. An inquiry was sent but I’ve heard nothing back – what a surprise*.

Other odds and ends: Adding the engine tray has aerodynamic advantages but carries with it other consequences. The most striking is that both oil and coolant temperatures increased roughly 4 deg C after adding the undertray, so convection cooling through the engine compartment was measurable. I imagine it’ll be even worse once a new engine cover is installed because the only cooling air will be coming in the side vents (the right-hand vent is currently non-functional but will be cut open). There is some concern that convection and ram-air effects may not be enough to keep things under control, so Plan B is being considered: an engine compartment cooling fan. I remember reading something interesting about the development of the McLaren F1, where they had similar engine compartment temperature issues. The most interesting aspect was where they mounted them: flat on the floor, sucking air upwards into the engine compartment. This had the double effect of moving air in the direction it wants to go anyway (hot air rises), but most importantly, lowered the pressure under the car by a measureable amount, thereby increasing downforce (or decreasing lift) at the same time. That’s pretty clever. The downsides I see are that dust and dirt kicked up by the front tires is likely to get sucked up, plus, the highest ambient temperatures is located closest to the ground. Granted, it’s (probably) cooler than the air around the engine, but I’m not sure whether it would work as well here in Southern California as it might at McLaren’s home of Woking, UK! Effectivity aside, finding space for it could be a challenge, as there’s just not that much open space anywhere in the engine compartment – whoever designed this didn’t oversize things much!

*This is a continued irritation with me, vendors that sell a product yet make it difficult or downright impossible to give them money. I’m currently designing a new pond filter which uses “feather rock”, a volcanic stone with interconnected pores. We have a local distributor of the stuff and I’ve called or walked in four times now, trying to get them to tell me if they can get the stuff – I know they can since they already sell the boulders, which come from the same mine, but I want the 2″ stuff, but the vendor just won’t answer my questions. As a last try, I’m contacting the mine directly and will ask them if they can kick their local distributor in the nuts to make them answer me. Best of all would be for the mine to offer and sell it to me and ship it with the boulders next time they make a shipment to my local outlet, then I pick it up there. I would enjoy walking in and asking for status, and after they give me another non-answer, I say “I’ve done all your work for you; here’s what’s going to happen.” Apparently business is so good these days that vendors just don’t want to bother with special orders – fine, but they could at least say so!