Currently Browsing: 1/10 Racing

Nats day one: Practice

Hit the track today with cousin Joe and old racing mate Pete… and about 50 other people trying to find that extra bit of pace ahead of the big race this weekend. The car has had some serious work over the past week. That includes installing TRF shocks, HPI springs, carbon chassis, adding boost (all covered in other posts). I did set a personal best lap-time of 21.7s. That puts me somewhere in the mid-field right now. The really fast local guy, Michael Sherman, was doing 20.2s. Today… Speed was good. On the straight I was faster than most, but not quite as fast as Mr Sherman. Punch on the...
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17.5 boosted timing and gearing – HobbyWing Xtreme Stock

In this post, which I will edit several times over the coming weeks, I’m going to be exploring some 17.5 boosted setups: gearing, endbell timing, and ESC timing. I am going to be setting up 2 cars. Both are Sakura Zeros running Thunder Power 17.5t motors. This post covers car #1, which has a Hobbywing Xtreme Stock ESC. Car #2 is running a SpeedPassion Reventon Pro and is covered in another post. Sakuras have default internal ratios of 1.9 (= 38/20) but I’m using an optional 19-tooth center gear to change this to 2.0 (=38/19). Car 1 Car 2 Chassis Sakura Zero Sakura Zero IR 2.0 2.0 Motor...
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17.5 boosted timing and gearing – SpeedPassion Reventon Pro

I am going to be setting up 2 cars. Both are Sakura Zeros running Thunder Power 17.5t motors. This post covers car #2, which has a SpeedPassion Reventon Pro ESC. Car #1 is running a HobbyWing Extreme Stock ESC and is covered in another post. Sakuras have default internal ratios of 1.9 (= 38/20) but I’m using an optional 19-tooth center gear to change this to 2.0 (=38/19). Car 1 Car 2 Chassis Sakura Zero Sakura Zero IR 2.0 2.0 Motor Thunder Power 17.5 Thunder Power 17.5 ESC Hobbywing XTreme Stock Speed Passion Reventon Pro Firmware V3.0_110930STOCK STO1 v19 Reventon Pro firmware downloads from...
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Building TRF shocks

Jiles Groskamp… checks bladders but reuses them many times replaces shock shaft when the coating shows signs of wear fits an 0.1mm shim under the shock piston to remove play in the piston uses only 1 o-ring above the plastic shim at the bottom of the shock body – Jiles prefers the blue o-ring from MuchMore over the silicon Tamiya o-ring using quite heavy MuchMore oil – 550 wt a good compromise for most tracks uses MuchMore air remover to speed up removal of bubbles from shock builds with very little rebound (0-1mm) targets same rebound all corners and often re-builds 1 or 2 to acieve...
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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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