which part of the shoes would i cut down. The alu ones i use do tend to slip when driving and turning corners slow. also hates grass, but i dont know what rating these springs are as didnt say on the pack or my lhs website. still quite new at this as seems to become more complicated the deeper i get into it. keeps the interest going i suppose.

do you know a link that will show me how to do this and where to cut or a shop website that sells mugen white and different rated springs, i will give it a try.

Also what sort of temps you running these engines at. Mines running top end at 95-100c (194-212f) depending on weather as normally run it slightly rich for safety and durability purposes. I have heard people running this higher but i have heard so many different responses from 110c-135c (230-275f) what is the specified running temp as rb website says nothing on this.