Originally posted by SalvadoriRacing
JP FX12 isn't that fast with less than 30%.........
i.e: running 16% nitro the engine isn't faster than any regular novarossi engine.....or performs even worse......poor idle, less torque......
the exhaust port is too high to make the engione fast with low nitro content......
Damn right, me and a friend bought these engines and we race with 16% and there are rubbish! honestley i was struggling to keep up with a non turbo o.s! We are not the only ones, recently at a national meeting i was speeking to another driver and he said they tried to send there engines back and get a refund! Mind you i dont realy understand why because the old purple top JP modifed Nova's used to screem on 16%