190mm shell weights – Protoform Mazda Speed 6

Here is how the weight of the regular Mazdaspeed 6 (right) compares to the lightweight version (left). That’s a difference of 17g. Most of that sits quite high, so it doesn’t surprise me that some report the lightweight body to be one or two tenths faster. [In my weight measurements I exclude the rear wing. The bodies have been trimmed except for the wheel arches, which I guesstimate to contain about as much plastic as the rear wing]. And how much does paint weigh? I painted both bodies in similar schemes. This involved one coat of color, and a white backing, with a little over-spray...
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Car development – 2.5 weeks out from the nats

I’ve just been stripping my car down to swap chassis, top deck, and towers install TRF shocks rebuild rear diff with heavier (2000) oil changing center pully to 19 teeth and the internal ratio thereby to 2.0 While I was at it, I thought to compare the weights of the two options I have for the front drivetrain. First, the putty-packed front gear diff weighed 39.5g. The second option, the spool, weighed 17.5g. That’s a massive 22.0g difference. The gear diff is supposed to be a bit faster into the corners, but I don’t remember feeling any advantage over the cars around me in that area....
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Car development – three week out from the Nats

Over the last few weeks I’ve struggled to find an easy way to bring the Sakura’s weight down from circa 1500g to the spec weight of 1380g. The easiest way to get lighter would be to go to a ~4200mAh shorty battery pack, but that would involve sacrificing the extra punch that a ~6800mAh battery delivers… and would still leave me with a left-right balance problem. Instead I’ve finally decided to replace the stock fiberglass parts with carbon fiber (narrow chassis, stiff top-deck, and suspension mounts). As a side-note, I think 1380g is too low for a spec weight for a rubber TC...
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LIPOs in October 2012

Earlier this year I bought a couple of Intellect LIPOs: a 6200mAh 60C, and a 6800mAh 70C. My reasons were that those specs looked pretty good, prices were good from RCMart, they’re both ROAR approved, and Intellect did make great NiMHs back in the naughties. But I’m back in the LIPO market this week because they’ve both bloated a little (25.5mm thick at the outside edge and 27.4mm at the middle of the pack). Nobody else at the track is using the Intellects. Is there a reason? People ARE using LRP, Reedy, SpeedZone, Team Orion, RevTech, Thunder Power, and a few are using (and loving)...
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Lovesong

Today I’ve been loving various covers of The Cure’s “Lovesong”. Here are a few:   The Cure (original):   Ein Astronaut & The Collaborations Club:   311:   Adele:  ...
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