3 Mar 2008

Forgot to mention that I took Kimini up to the “Cars and Coffee” event. This has turned into a huge deal, with hundreds of cars and spectators. Nearly everyone’s there by 7am and gone by 9am(!) which is cool because it leaves you with practically the entire day for other things. As cars start leaving, a crowd gathers at the exit, cameras in hand, to watch and listen as some exotic machinery leaves. In fact, there was a Ferrari 250GT there, or something that was so close to an original it had people all excited. Anyhow, I don’t post pictures any more because there are 100s of people who do so now. All you have to do is Google “Car and Coffee 3/1/08”.

In other news, I’m closing in on the front wheel geometry. Because I’m making the front track wider than the usual Locost, it presents the opportunity to use an unmodified Miata steering rack. People have a lot of trepidation about modifying steering racks, so this both simplifies and speeds up construction. Moving links around and juggling the wheelbase made it all work out, so unless something nasty shows up, this iteration looks promising.

The second set of rear uprights arrived, setting a new record in poor packing. Styrofoam peanuts don’t protect 40lbs suspension parts, so they punched a hole in the box, which arrived half empty of peanuts, I’m sure UPS appreciated that. I’d be upset if they were broken, but thankfully suspension uprights are darn tough. So, portions of these may be used instead of the Miata rear uprights. As much as I look at the Miata parts I just can’t figure out how to make a clean, easily adjustable rear suspension with them. While the alternative design requires fabricating custom uprights, the bolt-on spindles don’t require making precision bearing cups. (This adheres to my goal of making the car producible without requiring a lathe.) I’m curious what people think though, about making suspension uprights if it is an improvement over using the stock Mazda parts. Of course the question becomes, “How much better would it be? Is it worth the extra work?” I hope to answer that soon. It’s the eternal compromise, do I use parts which are just “okay”, or require extra work to make it much better? It’s a thin line between doing it right and getting it done.