With the 41019 header,

Nova 9886-very good low end and mid range power,good high end

Nova 2015-good all around power very smooth

Nova 2052- good low and mid range power,very good high end power

Pretty much run the 41019 header and the Super Strong 9886 exclusively in Utah. It is the best combo we have found and it tunes in very nicely.

Thanks for the reply guys you sealed the deal for me!

guys my nova flash pt has bubbles on top of the piston and in the combustion chamber on top of the piston. and the engine sound has a rattling noise that sounds as if there is something wrong with the engine. but the engine does not flameout and is running ok. what should i do?

change the bearings?how?

From some info that i have the new motors for 2014 will be VIRTUS 12 and VIRTUS buggy.for photos etc we must wait for the toy show..

Toy fair starts the 29th I think, a week away. I'm curious to see what comes out.

I'd tear the engine down and see if I could pin point the root cause of the rattling. If a bearing is going and it isn't changed you risk damaging the rest of the motor. I'm no Nitro motor expert by no means hopefully someone with a bit more motor knowledge can help you out. Still Id tear it down myself and see if I could explain why I hear noises and so on. The motors aren't bad to take apart and put back together, just be as clean as possible.

[QUOTE=GPXJOE;12926676]guys my nova flash pt has bubbles on top of the piston and in the combustion chamber on top of the piston. and the engine sound has a rattling noise that sounds as if there is something wrong with the engine. but the engine does not flameout and is running ok. what should i do?

change the bearings?how?[/QUOTE

Try to post some pics to pin point the problem .

.

what is the engine size,no of plug and running temp

so no one has tested the 2 pipes side by side. heard one of them is a 2 chamber and one is 3 chamber???

we were told 2660 was just an upgrade from 2630 we use 2660 with 5 fin con /header it is really good at Sydney and brendale whitch are both quick tracks

The 2630 makes slightly more power than the 2660. The 2660 is slightly better on mileage. The 2660 is more durable. The 2630 is very thin.

I prefer the 2660. It's a good combination of power, runtime, and it's more durable.

thank you greg and Uriah for the reply.

Is the 21-P5 a good choice for a losi 2.0 on an indoor track?

I get a lot of info from these sights when you get into as mutch trouble as I do it helps lots and thanks to every body that ansers