Champion ATM Nissan 240SX at the Texas Mile
When Joshua was 12 years old he won his first karting championship. The “Champion” moniker stuck. Every venture since has had it in the name. Father (Randy Hora) and son (Joshua Hora) have done lots of things together, and a trip to Bonneville gave them the crazy idea to go land speed racing. The Champion ATM 240SX is the result of that teamwork.
Although the US-spec 240SX came with a KA24 engine, the Japanese Silvia was fortunate to have (in some configurations) the turbocharged SR20. While people have coaxed quite a lot of power out of the included-in-Japan 2.0L mill, Randy and Joshua decided to go with the RB26, an engine known for making obscene power relatively easily.
Wiseco pistons and Tomei cams, Manley rods and Crower valves, along with a host of other internal upgrades, make up the engine build. The second build, in fact. An unfortunate incident at Bonneville the weekend of their record-setting run melted, liquified, or ruined just about everything in the first motor. A set of RC 1000cc injectors bring the fuel to the party.
A ceramic-coated Precision 6766 with a billet compressor T4 .86 A/R is used to force the atmosphere into the relatively tiny 2.6L space. Despite “only” having an extra 0.2L over the original KA engine, the RB is able to do so much more with it.
Nestled beneath the gargantuan intake pipe is one of the twin TiAL MV-R 44mm wastegates. Paired with these is a Greddy blow-off valve, used to keep the 28 pounds of boost well-managed.
Capturing all the spent excitement is a ceramic-coated Full Race manifold that leads to a 4” GS Motorsports ceramic-coated downpipe. Exhaust? We don’t need no stinkin' exhaust!