I am not choosing sides on this silly disscussion:rolleyes: but I will say IMO, Joe IS very knowledgable with engines and all other aspects of racing rc cars. He learned many things from Ed, as did others plus many years of real track testing and racing at a high level:tire:

You can find truth in many statements on the novarossi, CRE, houston, and
L7 threads, for instance "o'donnell glow plugs do suck" "os plugs slightly lower compression but do work fine in nova engines" "there is no issue with L7 air filters"


Those of us that have been doing this a while know this but many people are knowledgeable on nitro engines. some of them are on here:D some are not:spidey: some are in jail:deathstar some have moved on to other things:cool: and some actually dont care to share info from a desk and keyboard:batman:

I beehive a big issue is many of the filters are just too small......... The worst offender being the Losi filter setup.... I see the most contaminated engines with this setup..... The best filter is the OS filter setup.... I have found he old school single stage marshmallows protect the engine much better then the new smaller two stage filters.....I also have had good luck with the classic OFNA filters, but they are a little large for a Buggy.............. We have also seen good results with the outerwears filter bag.... So in summary a single stage is better then a two stage, and the larger the filter diameter the better......

And I oil my own filters, and I use several different oils...depending if I am at my house or my shop LOL......


I also judge the airfilters performance by the crankshaft...the more scratches on the crankshaft, the more dirt that has been ingested ! doesn't matter how clean the filter looks on the inside, its the marks on the crankshaft that tell the true story ! ..

min. should be 4.92... so that crank is done...

you should check out the new single stage mugen filter like comes with the mbx7. low profile, big, and single stage, Its the best of everything:D

OS old school 201 is my all time favorite.

http://www3.towerhobbies.com/cgi-bin/wti0001p?&I=LXBZ77

100% agree with you on that one !

Looking for feedback on the new keep off vs btt. Is it worth the extra money to get the keep off? What differences have you guys noticed running both?

Thanks!

pretty much the same engine difference is the rear bearing and the block made to fit the rear bearing...

Thereo is also alot of guys just oiling the inner filter when two stage airfilters are used. Thats just insane...

here it is. there is so much slop in the conrod too now i've got it back together

People do that for a reason. The outer filter, when oiled will cause fine dust and dirt to stick to it. When its dry, most of the dirt and dust will bounce off instead. It helps prevent your filter from getting gunked up with dirt and makes it harder for dirt to actually penetrate through since most of it is bouncing off instead of sticking. I have countless customers who ask for filters that are only the inner foam is pre-oiled.

OS is gonna have a surge in filter sales

At $33 a filter I don't think I will be rushing out
For one:D

I love my filters there drama free.. :D