#2017 Maesima MRZ-3 ST-ZR by KHT
Maesima can be found here Click
Seeing the success of the Maesima in the tuner market KHT has seen the car fit for modification in house to join in on the action. As a revision of the car was planned for 2017, KHT have contacted Maesima with permission to produce performance packages based off the MRZ-3 in 2017 trim. The most powerful version STX-R planned only in small quantities with high enough demand, it was decided to fill the niche bound to be crawling with people wishing for the most powerful OEM version of the MRZ-3 with a performance pack based on the less powerful ST-Z.
Once again, KHT engineers have decided to not go too in-depth with the engine, leaving the camshafts and the whole rotating assembly stock, but producing new head studs along with a much thicker MLS gasket, dropping the CR by 0.8 units, now 10:1. The high performance exhaust had to go to give way to a turbo compatible manifold, the turbocharger fed the intake through a custom air to air intercooler. The package was finished off with a performance clutch, remap and a custom exhaust system. The modifications have brought the power up to 310hp at 0.8 bar, which was enough to get the car on par with the STX-R, Maesima’s top trim for the chassis.
KHT experts have ran the car both on the track and in the wind tunnel to provide for best results, which were new springs, shocks, antiroll bars and a completely new settings for the car, more reminiscent of a track setup than a street one, with new bumpers helped route air in and out for the new cooling requirements. The suspension was finished off with a set of new wider BBS wheels and stickier sports tires, as well as sportier brake pads.
The ST-ZR kit went on sale at the same time as the regular car has appeared on the market, being first to the tuner scene KHT has benefited greatly.
Stats
0-100kph
ST-Z : 5.8 / STX-R : 4.7 / ST-ZR : 4.8
Top Speed
ST-Z : 243.9 / STX-R : 255.4 / ST-ZR : 243.8
Weight
ST-Z : 1277 / STX-R : 1342 / ST-ZR : 1353
Max G
ST-Z : 1.13 / STX-R : 1.23 / ST-ZR : 1.25g
Engine
Max power
ST-Z : 228hp / STX-R : 275hp / ST-ZR : 310hp
Max torque
ST-Z : 203nm / STX-R : 285nm / ST-ZR : 282nm
Responsiveness
ST-Z : 66 / STX-R : 51.4 / ST-ZR : 64.2
Loudness
ST-Z : 32.4 / STX-R : 36.2 / ST-ZR : 37.3
Smoothness
ST-Z : 59.5 / STX-R : 59.4 / ST-ZR : 59.5
Reliability
ST-Z : 60.4 / STX-R : 70.2 / ST-ZR : 58.3
Misc
Comfort
ST-Z : 33.8 / STX-R : 35.4 / ST-ZR : 31
Driveability
ST-Z : 62.4 / STX-R : 52.2 / ST-ZR : 53.3
Sportiness
ST-Z : 51.9 / STX-R : 59.6 / ST-ZR : 55.5
Economy
ST-Z : 6.73 l /100km / STX-R : 7.3 l/100km / ST-ZR : 8.5 l/100km
TG track time
ST-Z : 1:25.36 / STX-R : 1:21.32 / ST-ZR : 1:21.13
KHT has also seized the opportunity to lay the old Adelaide time attack car, replacing it with the Maesima MRZ-3 in the promotional time attack outings.
