Do the Powerline Cooling head for Traxxas TRX-15 really make the engine run cooler? Having problem with hot engine and are not able to run Traxxas recommended fuel since can't be bought here in Sweden.
Does anybody know what fuel to look for? Not a special brand, just the fuel content. Percentage of nitro and oil, castor or syntethic?
I'm not running the engine too lean and it gets hot even without a body. Heard a lot about the cooling heads but which one should I get?

Go with Hardcore's Mutant Head. It will drop your running temps considerably. One thing with heads though, be sure you don't run it too lean. What i mean is, although you may be able to lower the temp with a new head, it doesn't mean you can lean it out just because it is running cooler.

That's good advice Razorback. Just because it's cool, doesn't mean its not lean.

Were can I get the Hardcore's Mutant Head??

Here's a link, be sure to scroll all the way to the bottom

http://www.hobbyshopnj.com/hcrmaxx.html

and another

http://www.stormerhobbies.com/cgi-bi...0Core%20Racing