It is almost time to replace my engine on my Turmoil
Don't you only have like 2 gallons through it. Also the Sure Fire is made by Axial and I hear they suck balls. The biggest engine I'd put in your "truggy" would probably be a .28. I would get a Mach .28 or LRP Spec 3 if I were you.
Link to the LRP -
http://www2.towerhobbies.com/cgi-bin...?&I=LXKYU8&P=0
I'm going to get it for my Revo when I go big block.