R/C Tech Forums

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

Reply
 
Thread Tools Search this Thread
Old 11-16-2002, 03:13 PM   #511
Tech Champion
 
tony montana's Avatar
 
Join Date: Aug 2002
Location: Leonardtown Md.
Posts: 6,145
Trader Rating: 66 (100%+)
Default

ok guys need some help with my new mtx3. Just got done putting it together and I noticed that the drive train is very tight, so i did what the manual said and sanded the brake pads and that helped quite a bit. But when I went to run it for the first time I noticed that I really had to nail the throttle for the wheels to turn, Id say a good half throttle to 3/4. Could this problem be in the clutch? Because this clutch is different than my ntc3 and the manual sucks so I guess I got it toghther right. If Im not mistaken I think it is the same clutch in the mtx2 prospec. So come on guys help me out.
tony montana is offline   Reply With Quote
Old 11-16-2002, 03:25 PM   #512
Tech Fanatic
 
Join Date: Nov 2002
Location: Bowie Md.
Posts: 832
Default

are you comparing drivetrain to ntc3 or another belt driven car

when vehicle is off the gound do the wheels spin sooner than 3/4 throttle

does engine sound loaded when applying throttle or does it sound like clutch isnt engaging

i dont know about centax either when my car finally arrives i will also have to learn so i am no help there but i know you loosen or tighten something try loosening it and checking it again looser should engage sooner

does car roll ok it should roll some when pushed my ntc3 would roll away and my mugen will roll a couple of feet if pushed
jason102276 is offline   Reply With Quote
Old 11-16-2002, 06:30 PM   #513
Tech Regular
 
Join Date: May 2002
Location: Toronto, Canada.
Posts: 484
Default

Quote:
Originally posted by tony montana
ok guys need some help with my new mtx3. Just got done putting it together and I noticed that the drive train is very tight, so i did what the manual said and sanded the brake pads and that helped quite a bit. But when I went to run it for the first time I noticed that I really had to nail the throttle for the wheels to turn, Id say a good half throttle to 3/4. Could this problem be in the clutch? Because this clutch is different than my ntc3 and the manual sucks so I guess I got it toghther right. If Im not mistaken I think it is the same clutch in the mtx2 prospec. So come on guys help me out.
The problem lies in your clutch. Although I don't have the mtx-3, the clutch on the mtx-2 is the same. If your having to apply 3/4th throttle than you have to shim your clutch so that there is less horizontal play on the clutch bell. You can do this by either putting small shim(s) behinf the collet where the flywheel mounts or the easier way of putting shimms of where the main screw that holds the clutch assembly together. Mugen should have including some shims but its a good idea to buy some. Also make sure the collet that tightens down on the springs is between 2-2.5 turns tight from when it just starts to thread on.

Hope this helps.
rcpilot is offline   Reply With Quote
Old 11-16-2002, 06:47 PM   #514
Tech Addict
 
Join Date: Aug 2001
Location: SoCal
Posts: 513
Default

InitialD: the final ratio you mentioned can be achieved even on MTX-2.. i don't think those gears are widely ava in US though..
GPM offers a 42teeth spur

i know because Ah10 on this forum has using them for a long time.

MTX-3 can also get a final of 4.83 by using 22/42 on 2nd gear..

i do not know if this is enough for the track in Ohio, but just want to show that it is possible...
ME-student is offline   Reply With Quote
Old 11-16-2002, 06:51 PM   #515
Tech Champion
 
Manticore's Avatar
R/C Tech Charter Subscriber
 
Join Date: Aug 2001
Location: Heaven
Posts: 9,999
Default

I think the gearing issue has been resolved?

Just cannot believe why people can drag on it over and over
Manticore is offline   Reply With Quote
Old 11-16-2002, 08:53 PM   #516
Tech Fanatic
 
Join Date: Nov 2002
Location: Bowie Md.
Posts: 832
Default

i have been told the internal ratio was changed slightly and if you look at parts listing for mtx-3 on nitrohouse the size pinions are 15,16,17 first and 19,20,21 second they did used to make a 15 the spur sizes are also smaller so i believe the internal ratio changed and the pinion and spurs changed also to keep the overall numbers about the same as long as a couple more pinions we would be able to adjust to any kind of track layout even one as big as ohio where i have been and it was true the car was maxed out half way down straight and other cars were cruising past but now that im home i am as fast as anyone else
jason102276 is offline   Reply With Quote
Old 11-16-2002, 09:05 PM   #517
Tech Elite
 
Racing4Evo's Avatar
 
Join Date: Sep 2002
Location: SoCal
Posts: 2,118
Trader Rating: 2 (100%+)
Send a message via AIM to Racing4Evo
Default

Quote:
Originally posted by tony montana
ok guys need some help with my new mtx3. Just got done putting it together and I noticed that the drive train is very tight, so i did what the manual said and sanded the brake pads and that helped quite a bit. But when I went to run it for the first time I noticed that I really had to nail the throttle for the wheels to turn, Id say a good half throttle to 3/4. Could this problem be in the clutch? Because this clutch is different than my ntc3 and the manual sucks so I guess I got it toghther right. If Im not mistaken I think it is the same clutch in the mtx2 prospec. So come on guys help me out.
Loosen the nut that keeps teh spring on( I think it is called the retainer nut). Sounds like you have it on too tight. Another thing that will help is to put the clutch spring in a vise and compress it a few times so it is "broken in". It will save you the trouble of going back to adjust the nut.
Racing4Evo is offline   Reply With Quote
Old 11-16-2002, 09:10 PM   #518
Tech Elite
 
Racing4Evo's Avatar
 
Join Date: Sep 2002
Location: SoCal
Posts: 2,118
Trader Rating: 2 (100%+)
Send a message via AIM to Racing4Evo
Default

I read somewhere on the SGrid that Robbie Collins used a 43 tooth gear. That should help solve the issue of the car topping out early.

On another note, hopefully I will be able to pick up a kit Monday. I am a Mugen guy now. The past 3 cars I bought were all Mugen.
Racing4Evo is offline   Reply With Quote
Old 11-16-2002, 10:14 PM   #519
Tech Regular
 
Join Date: Sep 2002
Posts: 326
Default

Quote:
I am a Mugen guy now. The past 3 cars I bought were all Mugen.
Your a Mugen guy NOW? Wait, why say that if you had 3 Mugen's before???

Last edited by calimassive; 11-16-2002 at 11:01 PM.
calimassive is offline   Reply With Quote
Old 11-16-2002, 11:33 PM   #520
Tech Elite
 
Racing4Evo's Avatar
 
Join Date: Sep 2002
Location: SoCal
Posts: 2,118
Trader Rating: 2 (100%+)
Send a message via AIM to Racing4Evo
Default

Well I just got the cars because I liked them. Inever gave any thought to the fact that they were all Mugens. I didn't intend to keep it in the Mugen tree after I got that first Mugen kit. Until now, I didn't realize that I have been a strictly Mugen customer for the past 1 1/2 years.
Racing4Evo is offline   Reply With Quote
Old 11-17-2002, 02:24 AM   #521
rjl
Tech Fanatic
 
rjl's Avatar
 
Join Date: Jun 2002
Location: OZ
Posts: 848
Default

What is it with you guys and gearing? I raced the car on my local parking lot club today and found the gearing to be very suitable to the track NTs were designed to be raced on. Next weekend I will race on a 1/8th scale track and with spurs and pinions I will be able to gear correctly.
Personally I would like to see the minimum 1/8 scale track size as being the maximum length for NTs.
I want to race on tracks where setup is as important as top speed!
rjl
rjl is offline   Reply With Quote
Old 11-17-2002, 04:35 AM   #522
Tech Initiate
 
Join Date: Nov 2002
Location: Earth
Posts: 34
Default

I have made the 1st run of my MTX3 , the car is really a speed machine to me, it is very responsive going in the corner, I'm not sure it go any faster on the top speed, but the acceleration was unbeatable, just like you've got some more horse power,
rranger is offline   Reply With Quote
Old 11-17-2002, 05:07 AM   #523
Tech Addict
 
Join Date: Dec 2001
Location: Pro Driver ? - I Wish... [ Sydney ]
Posts: 742
Default

What is the anti-squat adjustment on the rear ? is this another term for something else like droop or bump or rebound
muugen is offline   Reply With Quote
Old 11-17-2002, 10:07 AM   #524
Tech Adept
 
tennessee's Avatar
 
Join Date: Jul 2002
Location: Arizona
Posts: 241
Default o-rings

Has anyone had a problem with the O-ring on the tank lid not sealing correctly

The one that came in my kit was actually 1-mm smaller in diameter than the one in my MTX-2, So i used it instead
tennessee is offline   Reply With Quote
Old 11-17-2002, 10:49 AM   #525
Tech Master
 
FREAKAH's Avatar
R/C Tech Elite Subscriber
 
Join Date: Jan 2002
Posts: 1,389
Default

Quote:
Originally posted by muugen
What is the anti-squat adjustment on the rear ? is this another term for something else like droop or bump or rebound
Anti squat refers to the angle of the rear inner hingepin in relation to the chassis horizontally front to back. Level with the chassis means no anti squat and front higher than rear means anti squat. Anti squat reduces the chassis tendancy to squat under acceleration which also reduces weight transfer to the rear.

The MTX-3 probably has different rear hinge pin mounts/rear bulkhead caps to adjust this.
FREAKAH is offline   Reply With Quote
Reply

Similar Threads
Thread Thread Starter Forum Replies Last Post
MUGEN MBX5R/MUGEN MBX5T PROSPEC/TRAXXAS RACE REVO Jason Halvorson R/C Items: For Sale/Trade 14 01-12-2008 10:32 AM
Mugen 5T Chassis, Mugen 46 Tooth Pinion, Associated Ride Height Gauge bretzkej R/C Items: For Sale/Trade 1 08-19-2007 06:31 PM
USA's Most Wanted FOR SALE Mugen MBX5R,Losi 8 comp, and Mugen MBX5T Prospec Truggy nobike R/C Items: For Sale/Trade 69 04-28-2007 07:45 PM
Another MTX3 prospec w lots of parts and an optional Mugen X12 w Mugen pipe Scott Fisher R/C Items: For Sale/Trade 11 11-21-2005 05:45 PM
drake xxx nt and mugen mst-1+extras......Looking for a kanai 2 or maybe mugen buggy [email protected] R/C Items: For Sale/Trade 5 06-30-2003 09:31 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 02:55 AM.


We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
Powered By: vBulletin v3.9.2.1
Privacy Policy | Terms of Use | Advertise Content © 2001-2011 RCTech.net