5ZIGEN goes bOOst!

The boosted K20 develops more than 500 HP and is even helped with a shot of nitrous oxide to get a bit more extra speed down the back straight at Tsukuba where it managed a max of 207 km/h, or 129 mph. More @ speedhunters.com

The K20B engine has been stroked to 2.4L and turbocharged…
…and if that wasn’t enough it’s mated to a nitrous oxide injection system, there to boost the lower rpm range. The guys at 5Zigen Japan reckon this puts out around 420 HP, giving those Dunlops quite the workout. More @ Speedhunters.com