I am thinking of getting me a high performance air filter like a motors saver. But I was wondering, won't just leaning out the engine have the same effect? A good air filter has a good and high air flow. So you get more air in your mixture. This seems like the same effect as just leaning out the engine.

It would be better to buy a high performance air filter than to lean out the engine. Leaning it out too much could cause over heating or affect perfomance. With a good filter there is no chance of that happening and it will give you better performance.

iF YOU GET THE MOTORSAVER, AND DRIVE ON A DUSTY TRACK, YOU WILL NEED TO CLEEN IT OFTEN BECAUSE DUST EASILY CLOGS THE SMALL SCREEN.

whatever you do... dont waste money on the K&N r/c air filters...

......Althouth they do look preety cool....

i boughtnthe same thing at lhs for 3$ and there sellin them on ebay for 20 what a rip

They sell them for 50 in magazines.... what a rip hehe

Just wondering what the problem is with the K/N filters? I don't have one, but was thinking of getting one. I take it this is a bad idea?
Jaggy

Motor savers are great air filters, just make sure you get a cap (deflecter) so that mud (you do drive through mud, right won't block your airflow.

K&N mainly makes filters for 1/1 cars. It lets little particles of dust through.

K&N's work best on Touring/Onroad cars. They're OK for dirt if you use a pre-filter wrapped around them, the pre-filter will keep most of the dirt away from the filter.

You have to view an air filter as a restriction, the cheap ones that are made from paper inner and foam outters will restrict too much air and cause the engine to run rich, at that point you lean it to get the mixture right. But the performance it horrible because it's starving for air. The main problem with the paper type filters is they trap moisture in the paper element and clog it up. The better ones are dual foam type that you oil, for my 1/10th scale I run Mugen Seiki filters that are for 1/8th buggies. More air flow is less of a restriction and the needle setting stays more constant after longer runs through rain, dust and mud. When I have a change in performance, usually it's the filter being clogged or a bad plug than my needle setting.
Motor savers are fine, but get the ones that restrict less and filter the most, the screen will be a problem with clogging, I was pitting for a friend in big-block monster trucks and his truck went rich durring the 45 minute main because the Motor Saver got clogged up on the screen, I ran to the trunk and grabed a new filter assembly from my buggy and poped it on the truck a few laps later and he ended up running just fine the rest of the race. The motor saver looked like a dirt popsicle, you could barely suck air through it.