Zdragon71
Hardcore RCTalk User
Just curious if anyones had any experience with this engine. The hpi trophy buggy i bought came with the F3.5 .21 and it took a crap within the first 1/4 gallon or less of fuel. Hpi replaced the engine under warranty with a F4.6 .28. I'm happy so far but only ran two tanks past breakin. Its not the purple head that comes in the savage but the grey head engine that comes stock in the trophy truggy and the 4.6 pulse buggy. What are your opinions on this mill as far as performance and durability or lifespan so to speak with holding a good tune on it? Thanks in advance for any replys.