Hasi Tuned 2022 R21 5-port GT nitro engine

Following the release of their 2022 R21 onroad engine Hasi Tuned are happy to introduced their new 2022 R21 5-port GT nitro engine intended for use with 1/8th GT cars. Based on the 5 port O.S. R21 engine, the new Hasi R21 GT5 has updated timing and new improvements on the cylinder, these upgrades necessary for perfect adjustment with the new fuel rules from EFRA. Also available with many options, such as break-in service, Hasi backplate, high performance venturi or rear ceramic ball bearing.

Source: Hasi Tuned [facebook.com]