I'm all signed up for autocross again on March 1st. In the mean time, I took care of a couple little things. Well, little, but important. First was the seatbelt shoulder harness mounting. I had them mounted all the way in the back of the car, on the part of the rear package tray that angles down toward the level of the tunnel. On about the first hard left turn of my first run last time, my right shoulder harness slid right off my shoulder! So I cut them to length and mounted them on the horizontal bar on the main hoop of my roll bar. I also added clamps on the outsides of them to keep them from moving around on the bar. They aren't going anywhere now! I've done this on the passenger side too since this pic was taken.
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Other thing I found was that I couldn't quite get the lap and shoulder harnesses tight enough to really hold me in the seat the way I wanted. If you tried to tighten the shoulder harnesses up a lot, it would pull the lap belt away from your waste and make it feel loose no matter how tight it was. And you can't really control a car very well if you're having to struggle to keep your body from flopping around every time you turn. So I added an anti-submarine belt to the driver's side harness. This pulls everything down nice and tight and keeps the lap and shoulder harnesses from fighting each other. Now with everything snugged up I feel like I'll be very secure in the seat and be able to better focus on driving.
Here you can see the anti submarine belt coming out between the seat bottom and back.
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Here's how all 5 belts come together at the buckle. Basically, you sit on the anti submarine belt and then it comes up along your crotch to meet the latch. It's not as uncomfortable as it sounds, and I only plan to use it when racing.
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The other little thing I did was to design and print a retainer to keep the brake pushrod pin in place. My pin has no hole for a cotter pin, and I had previously made a retainer out of aluminum sheet, but it broke finally so I decided to print one.
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I'm still trying to decide which tires to go with, I'll decide soon and get them on before my next race.