any 7x19x6mm front can be used but keep in mind they are not all created equal , the 17011 will shine over all

peter has great product and it will last you a while but i highly recommend the 17011

peter is a very good personal friend

Yes, the bearing isn't 6.3mm wide, the OD is 6mm wide and thats what you should be worried about, the 17011's ID is 6.3mm wide, the inner race is wider, which wont make a difference, it just protrudes .3mm from the front of the bearing.

TKO is an excellent choice, they make very high quality bearings and have great customer service.

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I have a Nova p5xlt and where I live it is very hot and humid. Humidity levels during the spring and summer are close to 100% every day. The motor is not idling very well with a C6tgc plug in it. It wants to shut off after about a minute or so with the c6 plug. The motor just now has a gallon on it and I already replaced the front bearing with the 17011. I put a od77t plug in it today and seemed to idle alot better right away. But before that the motor was shutting off down the end of the straight away at WOT. I cant remember does that usually mean you are too lean on bottom and rich on the top. Anyways is there a Nova plug that works better for hot and humid climate like a c5 or c7? Thanks for any help.

I think you have it backwards, too lean on top and to rich on bottom.

is the FMS 21-5 a good engine that is reliable, durable, and easy to tune?

Thanks

They sell those new still? I wouldn't buy a used engine unless its from someone I trust.

BTW, sorry I couldn't sell you my P5, even though its used, it was maintained well and not abused, there are some exceptions to the rule of buying used engines.

I would just pick up a new P5 and have tons of fun with it.

May be too rich on the top, just make sure your engine doesn't get too hot when you lean it.

Someone's selling one that has supposedly close to half a gallon. I was wondering if it's good since it's cheaper than a P5 and still needs to break in anyways.

pretty sure they never made a 21/5 FMS- only the 21/7. Monty??

Not gonna perform as well as the P5, a P5 is more worth it and buying new is usually better.

http://www.rctech.net/forum/r-c-item...-21-motor.html

here it is...

I would save up a little more and get a P5.

Scott is a very good and trusted seller. Anything he has for sale is in great condition, and well taken care of.

I was wondering if anyone has owned the P5 and tried the 21-5 FMS as well... I really want to keep the cost down as less as possible as I'm a student. Every dollar counts.