R/C Tech Forums

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

Reply
 
Thread Tools Search this Thread
Old 07-27-2010, 10:25 AM   #436
Tech Champion
 
Roelof's Avatar
 
Join Date: Aug 2007
Location: Holland
Posts: 5,553
Send a message via ICQ to Roelof
Default

It is about how many teeth of the pulley can be used to transfer the power:
No more stripping frontbelts.
__________________
Speed is only fiction but a 130+km/h MRS4 is for real.
Roelof is offline   Reply With Quote
Old 07-27-2010, 10:27 AM   #437
Tech Elite
 
Pooh2's Avatar
R/C Tech Elite Subscriber
 
Join Date: Mar 2005
Location: Somewhere here on Earth
Posts: 2,492
Send a message via MSN to Pooh2
Default

Quote:
Originally Posted by BigBellyCat View Post
So is it lack of maintennance or too tight a belt tension that makes belts strip?
Could Be Both. I've never got one that was defective. They last me a VERY long time. Shepherd or Mugen.
If it's too lose it will strip, if it's to tight it will strip. If you don't change it when it's time it will strip.
__________________
MUGEN MRX5/CONTACT TIRES/DESOTO RACING/TEAM LOGIC


"Since the Bible and the church are obviously mistaken in telling us where we came from, how can we trust them to tell us where we are going"?
Pooh2 is offline   Reply With Quote
Old 07-27-2010, 10:51 AM   #438
Tech Elite
 
MugenDrew's Avatar
 
Join Date: Aug 2006
Location: Apollo Beach, Florida
Posts: 2,060
Trader Rating: 24 (100%+)
Default

Quote:
Originally Posted by BigBellyCat View Post
So is it lack of maintennance or too tight a belt tension that makes belts strip?
Quote:
Originally Posted by Pooh2 View Post
Could Be Both. I've never got one that was defective. They last me a VERY long time. Shepherd or Mugen.
If it's too lose it will strip, if it's to tight it will strip. If you don't change it when it's time it will strip.
If you hit anything on the gas, if the car goes airborne and your on the gas when it lands, if your on the gas before the car is on the race surface to leave pit lane and go easy on the "it pulled a wheelie" coming out of a corner,
it will strip.
__________________
MUGEN SEIKI NOVA ROSSI ENETTI TYRES HUDY PROFESSIONAL TOOLS
BYRONS FUEL AIRTRONICS RADIO EQUIPMENT PROTOFORM RACE BODIES
MUGEN RACING RC AMERICA AKA RACING NUGGETS RACING DESOTO RACING
MugenDrew is offline   Reply With Quote
Old 07-27-2010, 10:55 AM   #439
Tech Regular
 
BigBellyCat's Avatar
 
Join Date: Dec 2009
Posts: 443
Trader Rating: 3 (100%+)
Default

Whats your opinion on belt spray? there are some automotive products that make the belt 'sticky'. How are composite belts, fiber belts and rubber belts diffrent? Does any belt material last longer than the others?

How long can you drive before changing the belts? An hour under race conditions? Of course, always checking for damage to the pulleys and removing those sneaky peebles and bits of grit that accumulate on the pulleys.

Should we change our belts before the hour long mains?
BigBellyCat is offline   Reply With Quote
Old 07-27-2010, 06:43 PM   #440
Tech Regular
 
tdr170's Avatar
 
Join Date: Nov 2008
Location: Fl
Posts: 431
Trader Rating: 3 (100%+)
Default Belts

Take a look at the post - (No More Stripping Front Belts) I was using a front
belt and pully every two or three races since making this mod and going to
the aluminum pully I have not changed the front belt and it still looks great. (5 or 6 Race Weekends)
One problem with the front is the 16t pully under load there are very few
teeth making contact once the plastic pully wears a little it will strip the
belt and/or the pully.
I would stay away from anything sticky on the belts they will just become sandpaper.
Do the mod and change to an aluminum 16t from Serpent and you will have no worries.
Change the belts when they look worn will very with everyone and every car and driving style.

http://www.serpentamerica.com/shop/home.php?cat=67
No more stripping frontbelts.
tdr170 is offline   Reply With Quote
Old 07-27-2010, 07:28 PM   #441
Boz
Tech Fanatic
 
Join Date: Sep 2004
Location: Australia
Posts: 948
Trader Rating: 23 (100%+)
Default

MugenDrew is 100% correct.

There is never going to be a fix for striping belts, it's a fact of life. Yes, an extra pulley good idea but it adds drag.

Look and clean your pulleys after each race meeting and adjust the tension but not to tight. I see so many cars with dirt in the pulleys. This is a big No,No and we cause a belt to strip.

And stay of the power in a crash, we aren't driving MBX6's.
__________________
Chris Bozich
Xray XB4 and XB2
Futaba 4PX and servo's
Powered by Nosram motors and FX engines.
Many thanks to HEI and Perth RC for their support over the years.
Boz is offline   Reply With Quote
Old 07-27-2010, 08:57 PM   #442
Tech Regular
 
tdr170's Avatar
 
Join Date: Nov 2008
Location: Fl
Posts: 431
Trader Rating: 3 (100%+)
Default Belts

Yes MugenDrew is absolutly correct in what he says.
The extra pully is actually bearings just like the side belt and the drag that might be added is so minuscule that its not perceivable.
My car rolls very free and adding the tensioner did not change that and most guys in my area are doing this.
The other bonus to changing to the aluminum pully is that the rubber does not build up in the grooves as with the plastic pully.
Give those two changes a shot you will not be disappointed.
tdr170 is offline   Reply With Quote
Old 07-27-2010, 09:41 PM   #443
Boz
Tech Fanatic
 
Join Date: Sep 2004
Location: Australia
Posts: 948
Trader Rating: 23 (100%+)
Default

minuscule it is and more drag = less fuel economy.

You're only testing it by pushing it on a bench (no load), testing it while applying loads transferred via the drive train under load from the motor is a different thing.

Aluminum pulley may last a little longer, but the pulley teeth sharpen into a pointed and will cut the belt. The money that you spent on aluminum pulleys could be spent on buying 5 bag of plastic ones.

I'm sure if Robert found a front tensioner to be beneficial it would of been added to the MRX5
__________________
Chris Bozich
Xray XB4 and XB2
Futaba 4PX and servo's
Powered by Nosram motors and FX engines.
Many thanks to HEI and Perth RC for their support over the years.
Boz is offline   Reply With Quote
Old 07-27-2010, 10:11 PM   #444
Tech Lord
 
wingracer's Avatar
 
Join Date: Nov 2007
Posts: 12,658
Trader Rating: 22 (100%+)
Default

Quote:
Originally Posted by Boz View Post
Aluminum pulley may last a little longer, but the pulley teeth sharpen into a pointed and will cut the belt.
I have not found that to be the case. Since I first started running 1/8th in 1999 I have gone through exactly 2 16 tooth aluminum pulleys.

The first was a delta one on my old Picco Integra. I ran it for a few seasons before putting it on my new MRX3. I ran it there for a few more seasons before putting on my new MRX4. By that time, it was getting pretty rough looking from rock damage but the teeth were NOT sharp but I went ahead and replaced it with a Serpent one. That one is still going strong today on my Shepherd and looks brand new. It hasn't even worn any of the anodization off.

The bad rap that aluminum pulleys have comes from a a lot of cheap garbage ones that were everywhere several years back. They were made from softer aluminum, were not hard anodized and one brand didn't even have the pitch right so they really killed belts.
__________________
Sean. Certified speed crazed mowron.
Team Shepherd USA
www.ashfordhobby.com
wingracer is offline   Reply With Quote
Old 07-27-2010, 10:33 PM   #445
Boz
Tech Fanatic
 
Join Date: Sep 2004
Location: Australia
Posts: 948
Trader Rating: 23 (100%+)
Default

Really, I'm may have to try one again.

Back in the MTX3 days the soft aluminum may of be the cause, I use a Kawahara one for a few races last year and removed it and went back to the plastic pulleys.
__________________
Chris Bozich
Xray XB4 and XB2
Futaba 4PX and servo's
Powered by Nosram motors and FX engines.
Many thanks to HEI and Perth RC for their support over the years.
Boz is offline   Reply With Quote
Old 07-27-2010, 10:54 PM   #446
Tech Regular
 
tdr170's Avatar
 
Join Date: Nov 2008
Location: Fl
Posts: 431
Trader Rating: 3 (100%+)
Default Belt

You also must buy a complete set of plastic pullies just to get the 16t and the 16t aluminum pully cost less last 10 times as long and does not wear to a point and cut the belt.
At this point I have had it on for 5-6 race weekends and it still looks brand new.
My experience with both the aluminum pully and the tensioner have been positive.

So give it a shot I know you will be happy.

As for the tensioner I run the same times between fuel stops.

\
----->
Mugen MRX4X
tdr170 is offline   Reply With Quote
Old 07-28-2010, 12:41 AM   #447
Tech Lord
 
wingracer's Avatar
 
Join Date: Nov 2007
Posts: 12,658
Trader Rating: 22 (100%+)
Default

Quote:
Originally Posted by Boz View Post
Really, I'm may have to try one again.

Back in the MTX3 days the soft aluminum may of be the cause, I use a Kawahara one for a few races last year and removed it and went back to the plastic pulleys.
That's why. The Kawahara ones were complete junk.
__________________
Sean. Certified speed crazed mowron.
Team Shepherd USA
www.ashfordhobby.com
wingracer is offline   Reply With Quote
Old 07-28-2010, 06:44 AM   #448
Tech Elite
 
MugenDrew's Avatar
 
Join Date: Aug 2006
Location: Apollo Beach, Florida
Posts: 2,060
Trader Rating: 24 (100%+)
Default

At this point I have 2.5 gallons on the Team Titan pulley that Serpent imports and all I can say is WOW. The pulley at this point looks like it's new out of the bag! I have noticed the rubber belt appears to be lasting about twice as long and this pulley runs clean. The pulley set thats on the car now I drilled radially like the aluminum pulley to vent air that is being trapped by the belt as each tooth in gauges the pulley teeth. I have honestly noticed no gain from this and at this point it appears to be a waste of time. I do put a drop of oil here and there on the belt before each run while I'm lubing the cvd's...
__________________
MUGEN SEIKI NOVA ROSSI ENETTI TYRES HUDY PROFESSIONAL TOOLS
BYRONS FUEL AIRTRONICS RADIO EQUIPMENT PROTOFORM RACE BODIES
MUGEN RACING RC AMERICA AKA RACING NUGGETS RACING DESOTO RACING
MugenDrew is offline   Reply With Quote
Old 07-29-2010, 11:55 PM   #449
Tech Champion
 
asw7576's Avatar
 
Join Date: Sep 2004
Posts: 5,792
Default

Here is my tips for belt maintenance.

Clean the belt with armour all liquid.

Use clean cloth, dip the cloth with armour all liquid and start wiping the belt until it is clean. 20 minutes job.

How long the belt can last ?

my mtx3 : still the same side belt since 2004 ( but I dont race this car anymore since 2008 )

my mrx4r : still the same side belt from day 1 ( 2008 )

mtx4 : still the same front and rear belts from day 1 ( 2006 ? )

my nt1 : still using the same belts from day 1 ( 2008 )
__________________
On Road : Xray NT1 , RX8 , T4 || Mugen Seiki MRX4-R , MTX4 , MTX3 prospec || Tamiya M03 , M04 || Top Racing Sabre FD2
Off Road : Xray XT8 || Hobao Hyper 8
Radio : Futaba 3PKS || KO propo EX-10 eurus
asw7576 is offline   Reply With Quote
Old 07-30-2010, 09:48 AM   #450
Tech Adept
 
Join Date: Mar 2007
Location: Nottingham,MD
Posts: 200
Default

when is the car going to hit the market???
younghovaa is offline   Reply With Quote
Reply

Similar Threads
Thread Thread Starter Forum Replies Last Post
Adelaide Nitro On Road Littlehampton Kodak Hodak Australian Racing 2503 09-19-2014 08:08 PM
MTX 5 seb1109 Nitro On-Road 3141 09-10-2014 10:24 AM
Mugen MRX5? straightaway Nitro On-Road 140 08-23-2007 09:49 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 05:42 PM.


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

SEO by vBSEO 3.5.0