zenoah r260rc vs r270rc

[modeldrive]

fg mini class for 4wd kit come with a r270rc 4 bolt motor but at are round 1 race meet
a r260rc was more fast on top end power then the r270rc the fg mini 4wd class has to be ran out of the box no mods to car or motor

 

[atom3624]

Isn't the 270RC a 4-bolt and the 260RC a 2-bolt head?
Might be a combination of tuning and actual compression - could be a new ring in the 260RC you saw and the compression on the 270RC was dropping a little.

Al.

 

[tmrperformance]

270's have more tq and rev slightly lower than the 260. Can u gear the vehicle? If so make the change there, that 270 has the power to pull more gearing