Hi, yesterday I ran my HPI trophy truggy with the stock 4.6. All great but, why did the orangy merlin fuel change to a red color after a bit of running?
It's the same fuel in the tank and in the filling bottle.
oh and is it normal that after running the car and opening the fuel cap you see smoke? You can also see a bit of it on the picture. I have a small problem with this tank: when pushing down the cap, there is a absolute vacuum, but when not pushing, there isn't. When running, I could see some smoke coming out of the cap. Probably from exhaust?