R/C Tech Forums

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

Reply
 
Thread Tools Search this Thread
Old 08-25-2010, 04:44 PM   #1
Tech Elite
 
Join Date: Mar 2009
Posts: 3,657
Trader Rating: 5 (100%+)
Default Boca ceramic engine bearings.

yay or nay?

Keep in mind this is all my lhs has and i need them for a race this weekend. And i need to break in a new motor, so i can't wait.
__________________
"You are not understanding the fundamental principles of my fragmented personality"

Mugen
dreaux is offline   Reply With Quote
Old 08-25-2010, 05:04 PM   #2
Tech Champion
 
JAMMINKRAZY's Avatar
 
Join Date: Jun 2007
Location: Pittsburgh PA
Posts: 6,575
Trader Rating: 17 (100%+)
Default

Boca's are very good bearings.
__________________
-Koby Kubrin-
Thanks to my Sponsors:
Serpent America | Team Novarossi | Desoto Racing | Race AKA | Ridgeway Bodies
JAMMINKRAZY is offline   Reply With Quote
Old 08-25-2010, 05:14 PM   #3
Moderator
 
J.Whiting's Avatar
 
Join Date: May 2005
Location: a very small town in wisconsin that is in the middle of absolutely no where
Posts: 4,536
Trader Rating: 57 (100%+)
Default

nothing wrong with a good ceramic bearing
__________________
Jeremy Whiting - serpent america - desoto racing - apicco race engines - RcRenew - jconcepts - Rc Pro Products - ko propo eurus - ko propo servos - VP PowerMaster Fuels - Answer-rc usa - advantage racing products - Parma/pse bodies - serpent 811 2.1 - 811t
J.Whiting is offline   Reply With Quote
Old 08-25-2010, 05:15 PM   #4
Tech Master
 
blade954's Avatar
 
Join Date: May 2009
Location: Perth, Western Australia
Posts: 1,199
Trader Rating: 23 (100%+)
Default

I would break in the new Engine then once happy then install the ceramic bearings, That's if you don't need them for the break in....

Very good bearings have used them myself....
blade954 is offline   Reply With Quote
Old 08-25-2010, 06:11 PM   #5
Tech Elite
 
Join Date: Mar 2009
Posts: 3,657
Trader Rating: 5 (100%+)
Default

yes need them for break in. Got the answer i needed from the master that sold me the engine
__________________
"You are not understanding the fundamental principles of my fragmented personality"

Mugen
dreaux is offline   Reply With Quote
Old 08-26-2010, 02:52 AM   #6
Tech Elite
 
savagesam's Avatar
 
Join Date: Jun 2008
Location: bayside, melbourne
Posts: 2,040
Trader Rating: 8 (100%+)
Default reply

Boca ceramic engine bearings are awsome, i got 83 litres of fuel through my jammin 21 engine on the same rod and same boca ceramic bearings before the rod snapped at the crank pin .... cant beat a boca for engine spool up speed ....
__________________
- Australian Team Tekno Rc - The Nitro Shop - Nitro X Fuel -
- Proline - Coast 2 Coast Rc - Hearns Hobbies - SMC - Futaba -

- Sam's Youtube Channel - http://www.youtube.com/savagexsam -
savagesam is offline   Reply With Quote
Old 08-26-2010, 05:26 PM   #7
Tech Elite
 
Join Date: Mar 2009
Posts: 3,657
Trader Rating: 5 (100%+)
Default

got some boca ceramics and the rear engine bearing is double sealed. I am taking one of the seals off obviously, just wondering why i have one that is double sealed. Exact dimensions of my vspec/ninja and it was quite expensive.

Just wondering if you guys have ever seen that. And it's a full seal on both sides. Not like most rear bearings that have a seal around just the inner cage (i think)
__________________
"You are not understanding the fundamental principles of my fragmented personality"

Mugen
dreaux is offline   Reply With Quote
Old 08-26-2010, 07:56 PM   #8
Tech Champion
 
JAMMINKRAZY's Avatar
 
Join Date: Jun 2007
Location: Pittsburgh PA
Posts: 6,575
Trader Rating: 17 (100%+)
Default

Quote:
Originally Posted by dreaux View Post
got some boca ceramics and the rear engine bearing is double sealed. I am taking one of the seals off obviously, just wondering why i have one that is double sealed. Exact dimensions of my vspec/ninja and it was quite expensive.

Just wondering if you guys have ever seen that. And it's a full seal on both sides. Not like most rear bearings that have a seal around just the inner cage (i think)
Remove both of the seals from the rear bearing. There shouldn't be any seals on the rear one. The "seal around just the inner cage" you are seeing on most bearings is not a seal, it is in fact the cage you are seeing.
__________________
-Koby Kubrin-
Thanks to my Sponsors:
Serpent America | Team Novarossi | Desoto Racing | Race AKA | Ridgeway Bodies
JAMMINKRAZY is offline   Reply With Quote
Old 08-26-2010, 08:03 PM   #9
Tech Elite
 
Join Date: Mar 2009
Posts: 3,657
Trader Rating: 5 (100%+)
Default

i knew one of you would come through. Thanks alot jammin. Never seen a rear bearing with a seal.
__________________
"You are not understanding the fundamental principles of my fragmented personality"

Mugen
dreaux is offline   Reply With Quote
Old 08-26-2010, 08:17 PM   #10
Tech Champion
 
JAMMINKRAZY's Avatar
 
Join Date: Jun 2007
Location: Pittsburgh PA
Posts: 6,575
Trader Rating: 17 (100%+)
Default

Quote:
Originally Posted by dreaux View Post
i knew one of you would come through. Thanks alot jammin. Never seen a rear bearing with a seal.
That's because they're not supposed to have seals. Boca makes bearings for a lot of different applications. So it isn't really a rear bearing, it just happens to be the right size and type. Pull the seals off and you'll be good.
__________________
-Koby Kubrin-
Thanks to my Sponsors:
Serpent America | Team Novarossi | Desoto Racing | Race AKA | Ridgeway Bodies
JAMMINKRAZY is offline   Reply With Quote
Old 08-26-2010, 08:29 PM   #11
Tech Elite
 
Join Date: Mar 2009
Posts: 3,657
Trader Rating: 5 (100%+)
Default

Quote:
Originally Posted by JAMMINKRAZY View Post
That's because they're not supposed to have seals. Boca makes bearings for a lot of different applications. So it isn't really a rear bearing, it just happens to be the right size and type. Pull the seals off and you'll be good.
i know they are not supposed to have seels. That is why i was asking if it's even the right bearing, which i know now that it is.

so thank x2
__________________
"You are not understanding the fundamental principles of my fragmented personality"

Mugen
dreaux is offline   Reply With Quote
Old 08-26-2010, 08:32 PM   #12
Tech Addict
 
Greenlee37's Avatar
 
Join Date: Jul 2008
Location: Bakersfield, CA
Posts: 541
Trader Rating: 32 (100%+)
Default

Quote:
Originally Posted by savagesam View Post
Boca ceramic engine bearings are awsome, i got 83 litres of fuel through my jammin 21 engine on the same rod and same boca ceramic bearings before the rod snapped at the crank pin .... cant beat a boca for engine spool up speed ....
83 liters???? uhhh... u sure???
__________________
Mugen mbx6R
OS .21 XZB Speed w/ 2060
Mugen mbx6-T
OS .21 XZB Speed w/ 2050
AKA - KO Propo - Fioroni - Byrons - Hitec - UPGRADE
Greenlee37 is offline   Reply With Quote
Old 08-26-2010, 08:35 PM   #13
Tech Elite
 
Join Date: Mar 2009
Posts: 3,657
Trader Rating: 5 (100%+)
Default

Quote:
Originally Posted by Greenlee37 View Post
83 liters???? uhhh... u sure???
1 liters = 0.264172052 US gallons



20 gallons? I dunno. Could happen i guess.
__________________
"You are not understanding the fundamental principles of my fragmented personality"

Mugen
dreaux is offline   Reply With Quote
Old 08-26-2010, 08:40 PM   #14
Tech Addict
 
Greenlee37's Avatar
 
Join Date: Jul 2008
Location: Bakersfield, CA
Posts: 541
Trader Rating: 32 (100%+)
Default

Quote:
Originally Posted by dreaux View Post
1 liters = 0.264172052 US gallons



20 gallons? I dunno. Could happen i guess.
I dont wanna get in a pissin match with anyone, just sayin, 20 gallons of fuel on a rod and bearings??? hmmm... send me some of those...
__________________
Mugen mbx6R
OS .21 XZB Speed w/ 2060
Mugen mbx6-T
OS .21 XZB Speed w/ 2050
AKA - KO Propo - Fioroni - Byrons - Hitec - UPGRADE
Greenlee37 is offline   Reply With Quote
Old 08-27-2010, 06:42 PM   #15
Tech Elite
 
savagesam's Avatar
 
Join Date: Jun 2008
Location: bayside, melbourne
Posts: 2,040
Trader Rating: 8 (100%+)
Default

Quote:
Originally Posted by Greenlee37 View Post
83 liters???? uhhh... u sure???
Well i run a little black book of my fuel use for my records on each engine that i run and the jammin jpx 21 rod let go at the 83 litre mark, the jammin jpx 28 rod let go at the 65 litre mark, each of these engine get raced 3 week ends a month all over australia.

Three new motors are running strong in ther truck, truggy & buggy will have to see how this lot hold up, each modded by extreme rc mods in canada

Boca ceramic bearings are installed at about the 8 litre mark once the run in is completed and the cold crank pinch is almost all but gone with the plug removed
__________________
- Australian Team Tekno Rc - The Nitro Shop - Nitro X Fuel -
- Proline - Coast 2 Coast Rc - Hearns Hobbies - SMC - Futaba -

- Sam's Youtube Channel - http://www.youtube.com/savagexsam -
savagesam is offline   Reply With Quote
Reply

Similar Threads
Thread Thread Starter Forum Replies Last Post
Ninja Engine by GRP ogreasurada Offroad Nitro Engine Forum 1526 09-16-2013 07:13 PM
What are the best engine bearings? merdith6 Nitro Off-Road 49 01-01-2010 08:30 AM
Boca or TKO engine bearings? KWT-NITRO Onroad Nitro Engine Zone 8 11-21-2009 06:40 AM



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 07:20 PM.


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