R/C Tech Forums

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

Reply
 
Thread Tools Search this Thread
Old 03-10-2008, 06:46 AM   #61
Tech Elite
 
Join Date: Nov 2004
Location: Kansas City
Posts: 2,446
Trader Rating: 13 (100%+)
Send a message via AIM to David Alberico Send a message via Yahoo to David Alberico
Default

I don't run for OS. but last year I had a con-rod snap. I sent my engine in and they took care of me as a customer. I think this is good business ethics and I would definitly buy another OS engine just because of that.
__________________
Castle Creations, J-Concepts, WMD Products, Clints Creations
David Alberico is offline   Reply With Quote
Old 03-10-2008, 12:13 PM   #62
Tech Addict
 
Maikaitan's Avatar
 
Join Date: Apr 2006
Posts: 516
Trader Rating: 2 (100%+)
Default

there are 2 version of the vspec... the later version has an updated main bearing.... the old one has a 10 ball baring... the new one has a 9 ball bearing...

also, the new version has a different part number for the crankcase... externally, it's hard to tell... but a trained eye can tell the difference... the easier way to tell is the packing that they come in... the older version is packed in foam, the new version is in bubble wrap...

we had ran the new version without any problems... the old one suffers bearing problems that leads to conrod breakage...

hope this helps....
__________________
HobbyThingzBlk 201-E, Tampines Street 23, #01-118, Singapore 520201. Tel: 65-67828311, HP: 65-97465015. www.hobbythingz.com, team@hobbythingz.com
Regional Sole Distributor for Team Associated, Orbit Electronics, J Concept and PolyButler. Dealer for Tamiya, Kyosho, GS, Proline, Byron, Os Engines, RB, Futaba, Sanwa, KO.....
Please note that we are closed every Tuesday and P.Holiday. Hours are: 12pm-9pm.
Maikaitan is offline   Reply With Quote
Old 03-10-2008, 12:37 PM   #63
Tech Regular
 
buckeye34's Avatar
 
Join Date: Jan 2008
Posts: 274
Trader Rating: 7 (100%+)
Default

Quote:
Originally Posted by Swen View Post
I race for OS, and you can count the balls. It went from a 7 ball bearing to a 9. Not positive on the numbers but they are different in the '07 and up motors. Also, the hump on the bottom where the back plate screws into runs the length of the bottom of the case on the new motors. On the old style it was only long enough to house the screw.
Quote:
Originally Posted by SkarTisu View Post
Almost, Jon.

Older V-Specs have 8-ball rear crank bearings, 07 V-Specs have 9 ball rear bearings.
here you go maikaitan....
__________________
mbx5r
v-spec
jp-3 pipe
hitec 5955tg/steering
ko propo 2367/throttle
m-11
buckeye34 is offline   Reply With Quote
Old 03-10-2008, 11:20 PM   #64
Tech Addict
 
Maikaitan's Avatar
 
Join Date: Apr 2006
Posts: 516
Trader Rating: 2 (100%+)
Default

Quote:
Originally Posted by buckeye34 View Post
here you go maikaitan....
yes... the hump on the crank case is right...

i'm positive about the balls... confirmed that it's from a 10 to a 9.... not 7 to 9...

anyway, if you have the 9, then you are pretty safe....
__________________
HobbyThingzBlk 201-E, Tampines Street 23, #01-118, Singapore 520201. Tel: 65-67828311, HP: 65-97465015. www.hobbythingz.com, team@hobbythingz.com
Regional Sole Distributor for Team Associated, Orbit Electronics, J Concept and PolyButler. Dealer for Tamiya, Kyosho, GS, Proline, Byron, Os Engines, RB, Futaba, Sanwa, KO.....
Please note that we are closed every Tuesday and P.Holiday. Hours are: 12pm-9pm.
Maikaitan is offline   Reply With Quote
Old 03-11-2008, 01:43 PM   #65
Registered User
 
Join Date: May 2007
Location: Townsville
Posts: 419
Default

.
Loop&Roll is offline   Reply With Quote
Old 03-11-2008, 01:45 PM   #66
Registered User
 
Join Date: May 2007
Location: Townsville
Posts: 419
Default

Quote:
Originally Posted by Kraig Krueger View Post
Kendall, what I am saying is that often in RC racing, racers look at the number of gallons run on a motor as a measure of longevity. This is not an accurate measure when fuel mileage differs. I will give you an example that will help explain this:

These numbers are exaggerated to make it easier to understand. This is not a representation of any company's motor performance, just an explanation of how fuel mileage comes into play.

We will say that each motor drives 1 mile for every 5 minutes driven.
For ease of math we will say we have extra large tanks and they will hold a gallon.

Kendall's motor gets 5 minutes per tank
Kendall's motor will last 10 gallons

Kraig's motor gets 15 minutes per tank
Kraig's motor will only last 5 gallons

Kendall's motor: 5 min/tank *1 tank/gal *10 gal*1 mile/5 min
Distance driven: 50 miles

Kraig's motor: 15 min/tank * 1 tank/gal *5 gal*1 mile/5 min
Distance driven: 75 miles

Even though Kendall's motor went through 10 gallons and Kraig's only lasted 5, Kraig's lasted 50% longer.

Which motor would you rather have?

Kraig
WTF... this is exactly why i put a tacho on my mugen, its done 500k's now!!
Loop&Roll is offline   Reply With Quote
Reply

Similar Threads
Thread Thread Starter Forum Replies Last Post
Just blew my motor!!!!!!!! playboy Nitro Off-Road 21 05-29-2008 09:02 PM
help! aps dynocharge blew! GAMMACRUSH Radio and Electronics 3 12-25-2007 01:16 AM
engine blew out! rob3412 Rookie Zone 4 04-05-2007 07:04 PM
My engine blew. NEED HELP fable_faiz Malaysian R/C Racers 2 07-29-2006 10:07 AM
GT7 Blew up ratter Electric On-Road 9 02-11-2005 11:09 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 07:22 PM.


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