Well I made the LRP Z.28R Spec.3 up grade to my MGT 4.6 also add some other mods , roll cage, springs, etc. It runs around 55 to 65mph( est.).I'll try to attach some picks.
I have the LRP tuned around 245 deg f. (the sheet that came with the engine said the perfect temp was between 230-260 f) and that temp is consistent with 3 to 4 passes at about 200 to 300 m stretch. Now with normal monster truck running where you just pop wheelies and short track runs w/jumps the temp stays around 180-210. It pops wheels fairly easy and can get out off control quickly if you don't watch it. Glad I have my roll-cage !
As far as hobbies go, and this being my first Nitro RC Monster Truck. I have to say. This is about the best hobby I've had in a long time. The service, support and technically proficient just to name a few are some of the professional qualities I've experienced with Team Associated as well as other On-line Hobby stores such as A-Main hobbies to be specific have been more than helpful. This is just a great product.