Most fuel economical .21 you have ever had?
Hello
I am going to be competing in an enduro event with my buggy or truggy (3hrs), I am going to be taking part in it with a .21 race motor and was wondering which is the most fuel economical as my local track is very dusty and I currently have an OS .21 speed and am just making 10mins in my truggy with a 6.5mm restrictor and throttle travel set to 75% of the 6.5mm restrictor...
If you guys could list some extremely fuel economical motors I would really appreciate it...
Thankyou