Nissan 200SX Club - South Africa

“The twin scroll turbocharger concept was developed jointly by Mazda’s Department Five and by Hitachi, and is manufactured by Hitachi having been designated HT18S-2S. It’s turbine-side bearing area is now water-cooled, and the main body is further protected by high temperatures by a dual-skinheat shield. The 1 blade turbine, of impact design, is 64 mm (2.52 inch) in diameter. It’s scroll area, the nry path for exhaust gas, is divided into two passages separated by an integrally cast wall; one, called the secondary scroll, has a trap-door-like gate operated by intake vacuum. The turbine thus has two cross sectional area factors, A being the scroll’s smallest area as used in calculating turbocharger performance characteristics: 6.00 sq. cm (.93 sq. in) for the primary path and 9,48 sq. cm (1.47 sq. in) for the secondary. The other factor is R, the distance between the turbine-shaft center and the center of area A: 59.4 mm (2.34in) for the primary path, 60.4 mm (2.38in) for the secondary. Thus the twin-scroll turbocharger has two A/R ratios: 0.4 for the primary and 1.0 for the primary and secondary combined.”

Daniel wrote:I think I know your mindset, I never drive my S13 either and have also thought about twin charging mostly for the sh1ts and giggles.

Daniel wrote:Hahaha not really. I'd prefer put it on my car if im honest. But I've contracted terminal lazyness...