High nitro for 90 engines do they need it for light 3d

[vanman]

Hey all i have a friend that is going back into 90 size flying and is making the change to 30% fuel, His flying is a mix of sport and some light 3d , so will the 30% fuel be any advantage to him as some say that 90 s run so much better on high nitro
many thanks

[moonmanflyer]

No Not really unless he was reversing high load manovers, i would recommend 20%

[t-rex pedro]

Optifuel SLV20 will be fine. Saying that, your friend will for sure see a power increase using 30%. I'd say get a gallon of each and try them both.

My YS91SR is hauling ass on Optifuel 30ULV.

Cheers

[Paulice]

20 SLV is all most people need, Like Pedro i'm on 30 ULV but it's not needed for the way i fly, but hey it's nice to keep up with most electrics.