Sorry Mista, but the GT2 Restrictions are based for short (CTRA) races, and so it kinda fecks up the balancing as the FZR uses more fuel. Hey if you want to use the FZR then thats fine, but you'll be slower
Why not use endurance restrictions then like MoE restrictions... They're made for 6 hour races and + but its still 1 hour stints not for 20 min races...