I think you will be pushing to get a sized 28 in a truggy to do 10 minutes tbh i have had falcon 28 and they are ballistic to over powered to controll a truggy and even more so if you race;
The falcon 28 was great for putting in for some fun on play days but decided to sell the 2 engines i had 1 was brand new as not for racing;
I know run the argus which is a nice smooth and quick engine it is a 21 sized and i get 10.30 out of a tank of fuel that is on racing the engine and not bashing;The engine has been really bang tidy since i had it no problems at all one tank through on the box then out on the track with it and finely tunned as the day went on
Out of the Picco Boost,RB i think the argus is well worth the money and a cracking little engine ;
There is also the new Fastrax engine to which is a great little engine and this is what we used at the 6 hour endurance event at NDOR in october;
http://www.cmldistribution.co.uk/cml...tId=0000006322
Alot of truggy drivers today only use 21 engines and seem to do extremeley well