My '03 Fantom .12 is now broken in and I've run a few tanks after break in. I've tunned it and keep messing it it to make it fast but it never performs near as well as my other Truck (identical, but heavier) with the stock Mach .15 motor. Is the Mach .15 really that good, or is my Fantom really that bad? Any ideas whether or not Fantom will help me out on this? I bought it 4/17 so there is warranty.

Run a few more tanks out of your fantom and keep trying to tune it. My didn't make peak power till I ran about a half gallon thru it. If it still doesn't make good power than give them a call.

Good advise. My Fantom .15 didn't really start producing some serious power until about 1/2 gallon as well. That Fantom .12 should eat that Mach .15 for lunch once it's well broken in. If it doesn't, call Fantom, there may be a problem with it.

same kind of thing with my o.s. .12 cv-r, It didnt put out much until it had about 20 tanks through it.

I just ran a few more tanks through it and it is starting to feel better (about even on the top end, but not as much low end). Hopefully I will get another quart through it before warranty is out. I emailed them and they said to call a specific person about it tomorrow. I'll keep ya all posted.

Rich