R/C Tech Forums

Go Back   R/C Tech Forums > General Forums > Nitro Off-Road

Reply
 
Thread Tools Search this Thread
Old 11-29-2007, 09:28 AM   #1
Tech Elite
 
Join Date: Feb 2007
Location: USA
Posts: 2,756
Trader Rating: 66 (99%+)
Default K&N air filter oil - GOOD OR BAD?

I have some K&N air filter oil in spray can, is this stuff good for .21 race engines...........I have heard mixed feelings on it..........please share your thoughts............I am using AE air filter oil now
pwnzor is offline   Reply With Quote
Old 11-29-2007, 09:56 AM   #2
Tech Elite
 
looper's Avatar
 
Join Date: Feb 2006
Location: DFW area of Texas
Posts: 2,224
Trader Rating: 19 (100%+)
Send a message via Yahoo to looper
Default

they dont filter out dirt well enough for rc engines..
looper is offline   Reply With Quote
Old 11-29-2007, 09:58 AM   #3
Tech Elite
 
Join Date: Feb 2007
Location: USA
Posts: 2,756
Trader Rating: 66 (99%+)
Default

thats what I have heard from some, I've never used it personally.

Last edited by pwnzor; 11-29-2007 at 10:09 AM.
pwnzor is offline   Reply With Quote
Old 11-29-2007, 10:04 AM   #4
Tech Master
 
Ed Anderson's Avatar
 
Join Date: Jun 2006
Location: N.J.
Posts: 1,373
Trader Rating: 26 (100%+)
Default

Been using it since 96.... never had a problem.
Ed Anderson is offline   Reply With Quote
Old 11-29-2007, 10:09 AM   #5
Tech Elite
 
Join Date: Feb 2007
Location: USA
Posts: 2,756
Trader Rating: 66 (99%+)
Default

hmmmmmm, so some like and some dont...........6 yrs and no probs sucking dust, in that case it must work, I have always heard mixed emotions on this, thats why I have never used it. Keep your experiences with it coming....... the stuff is cheap in comparison to small bottles of hobby grade oil
pwnzor is offline   Reply With Quote
Old 11-29-2007, 10:11 AM   #6
Tech Elite
 
Illbreakthat's Avatar
 
Join Date: Sep 2005
Location: With your sister!
Posts: 3,521
Trader Rating: 1 (100%+)
Default

I have been using it since i tryed it for 2 years now and i find it works excellent. I can run a day of racing and all i have to do in the end is pull off the prefilter and the internal filter is in perfectly clean shape. I would recommend it for sure. The other oil used here in town is MotoX filter oil.
__________________
Not much to put here....
Illbreakthat is offline   Reply With Quote
Old 11-29-2007, 10:13 AM   #7
Tech Master
 
Ed Anderson's Avatar
 
Join Date: Jun 2006
Location: N.J.
Posts: 1,373
Trader Rating: 26 (100%+)
Default

Quote:
Originally Posted by pwnzor View Post
hmmmmmm, so some like and some dont...........6 yrs and no probs sucking dust, in that case it must work,

6???? I thought it was 11. I still have these engines, they run great!
Ed Anderson is offline   Reply With Quote
Old 11-29-2007, 10:20 AM   #8
Tech Elite
 
Join Date: Feb 2007
Location: USA
Posts: 2,756
Trader Rating: 66 (99%+)
Default

Quote:
Originally Posted by Ed Anderson View Post
6???? I thought it was 11. I still have these engines, they run great!
lmfao!! de-de-de
pwnzor is offline   Reply With Quote
Old 11-29-2007, 11:19 AM   #9
Tech Addict
 
Join Date: Aug 2006
Location: midland,michigan
Posts: 527
Trader Rating: 4 (100%+)
Default

the K&N works good on paper and fiber filters like the little ones for gas trucks. K&Ns are a paper/fiber style construction and you can use the cleaner on our filters to wash them out, even the paper ones. Just blow inside out with light air on your compressor.

As for foams, I use a quart of the Belray from a local bike shop. That much for around $11-$14 has lasted me about 4 years now and at this rate I've still got probably a year or so left... Good luck, and remember, saving a buck isn't going to be any good once your motor sucks dirt. My $.02
cwalters is offline   Reply With Quote
Old 11-29-2007, 11:31 AM   #10
ALG
Tech Regular
 
Join Date: Nov 2005
Location: LIMA PERU
Posts: 371
Default

Quote:
Originally Posted by cwalters View Post
the K&N works good on paper and fiber filters like the little ones for gas trucks. K&Ns are a paper/fiber style construction and you can use the cleaner on our filters to wash them out, even the paper ones. Just blow inside out with light air on your compressor.

As for foams, I use a quart of the Belray from a local bike shop. That much for around $11-$14 has lasted me about 4 years now and at this rate I've still got probably a year or so left... Good luck, and remember, saving a buck isn't going to be any good once your motor sucks dirt. My $.02
NICE choice, I also use Belray, great oil!!!!!
no problem with it. They are use on foam filter for MX bikes.

but remember, have FUN!!!
ALG is offline   Reply With Quote
Old 11-29-2007, 11:34 AM   #11
Tech Master
 
TonysScrews's Avatar
 
Join Date: Jan 2006
Location: Central NJ
Posts: 1,660
Trader Rating: 13 (100%+)
Default

I also use the BelRay foam filter oil. It has worked great for me for 4 years. Another option is the TKO Rock Oil if you wash and re-use yuor filters. Personally, I never re-use the inner filters. I oil both the inner and outer filters, then blot with a paper towel until there is hardly any oil coming off the filter anymore. I wash and re-use the outers. I just use a foam filter cleaner in a spray can from the motorcycle shop where you can get the BelRay foam filter oil. I then use alight amount of grease on the outside flat edges of my inner filter that sits in the filter housing. I make up a bunch of outers and keep them in a zip-lock bag. When the outer gets too dirty, I stick it in another zip-lock bag to washe and re-use again later. After going through changing the outer a bunch of times, eventually the inner will get changed. I toss the inners though. They are cheap enough and my $300+ motors are worth the peace of mind. The inners usually last one race outting (1/2 to 1 gallon of fuel....usually a few tanks of practice, three qualifiers and a 10-20 minute main).

As for the K&N filter oil it is not made for foam filters so I would not use it.

Best regards,
__________________
Tony P.

Tonys Screws LLC
http://www.tonysscrews.com
High Grade Alloy Steel Screws, Screw Kits and Mugen Parts
TonysScrews is offline   Reply With Quote
Old 11-29-2007, 11:43 AM   #12
Tech Regular
 
rabidsquirrel's Avatar
 
Join Date: Jun 2006
Posts: 284
Trader Rating: 2 (100%+)
Default

I just wash my filters, both inner and outer. Never had any problems doing so. They don't really seem to break down much after repeated washings - I have inspected them to be sure...

As for K&N oil, IDK... I'd guess that any quality motorcross/dirtbike/ATV type oil designed to work foam type filter elements would work fine.

Dirt is equally effective at killing engines, large and small. Racing Dirtbikes and ATVs take some serious abuse over a longer period of time with the same filter (Enduros and such). If it works for them, it'd likely work for an RC car in a 30~45 minute main, IMHO.
rabidsquirrel is offline   Reply With Quote
Old 11-29-2007, 11:51 AM   #13
Tech Master
 
SkarTisu's Avatar
 
Join Date: Sep 2001
Location: Minnesota
Posts: 1,669
Trader Rating: 8 (100%+)
Send a message via AIM to SkarTisu Send a message via Yahoo to SkarTisu
Default

I'm using BelRay too. After a few test days this summer on a dry track, running about a half gallon and nearly clogging the outside of the prefilter with dust, not a speck of dirt made it to the inner filter.

I'm sold on it.
SkarTisu is offline   Reply With Quote
Old 11-29-2007, 12:29 PM   #14
Tech Regular
 
JeremyS's Avatar
 
Join Date: Jul 2007
Location: Spokane, WA
Posts: 451
Default

heres my solution to the problem....

Purchase the Losi air filter kit (snorkel, housing, inner and outer filter)

Purchase the Losi PRE OILED!! air Filters. At $8.00 for a pack of 4....2 bucks a filter, consider it cheap insurance on a very expensive mill.

I change the filters (inner and outer) when i see the outer getting relativly dirty. That way i know that no dirt is getting past that inner filter.


sure i clean them and reoil them to use again...but not very often!! the convienence of pulling one filter off and slipping another on that is allready oiled out of the package is very nice!!

and if you think that a filter that is packed with dust is restricting flow...suck on the filter assembly when it is caked with dirt...and see how much air you can suck through the filters....
__________________
V-8 For life
Blue Oval Loyalist

If you ain't first....your last
JeremyS is offline   Reply With Quote
Old 11-29-2007, 12:43 PM   #15
Tech Elite
 
motomanpat's Avatar
 
Join Date: Jun 2006
Posts: 2,180
Trader Rating: 2 (100%+)
Default

I use K&N filter spray and have been for about 2 years and it works great in my opinion Before I used this red BelRay stuff and it was cool.You put it between you fingers then pull them apart and it was like a super spider web but in my opinion it was too thick for RC engine use I want my motors to breath and still have the protection so no dirt goes in.
motomanpat is offline   Reply With Quote
Reply

Similar Threads
Thread Thread Starter Forum Replies Last Post
K&N Air Filter sullen909 Nitro Off-Road 11 09-02-2008 04:28 PM
Air filter T Kish Rookie Zone 1 09-03-2004 10:27 AM
fuel filter and air filter GReddy Electric Off-Road 1 07-10-2004 07:04 AM
k&n air filter mrredrsx02 Nitro On-Road 88 12-21-2003 10:12 AM
Where to get a good .21 off road air-filter? BloodClod Singapore R/C Racers 2 10-20-2002 06:50 PM



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are Off



All times are GMT -7. It is currently 11:38 AM.


Powered By: vBulletin v3.9.2.1
Privacy Policy | Terms of Use | Advertise Content © 2001-2011 RCTech.net