R/C Tech Forums

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

Reply
 
Thread Tools Search this Thread
Old 05-09-2004, 07:22 PM   #9961
Tech Elite
 
Sow&Steady's Avatar
 
Join Date: Dec 2003
Location: Va Va Voom!
Posts: 4,104
Default Re: MTX3 drive ration versusn S710

Quote:
Originally posted by Profoxcg
Does the mugen have more top end speed or did my friend's engine did the trick? he has the Sirio Evo 2 and I have the regular Sirio with the black head, but cars are stock geared, but he was able to pass me in the straghtway with no problem, his car was also on the rich side.
Agree with Cox plus many other factors. I have both cars and each using the same pipe (Shark) and engine (Rody X12 RB). On any given day I've found the 710 to be better.

I don't want to sound too fanatical either ... like I said there's many factors. My 710 is slightly newer than my MTX3 so even as simple as that that could be a reason.

__________________
http://3hobby.net REVISITED V2 - Its on steroids!
https://www.facebook.com/ssteady
Sow&Steady is offline   Reply With Quote
Old 05-09-2004, 07:22 PM   #9962
Tech Master
 
Motorman's Avatar
 
Join Date: Nov 2001
Location: Michigan
Posts: 1,911
Trader Rating: 1 (100%+)
Default

D
yes cutting the shoes to go between the pins indeed acts like they are theoretically heavier but actually its a mechanical advantage as opposed to a centrifical one. I have also used a full clutch shoe cut in three pieces through the holes with the bottom of the holes trimmed for flyweights. This is an Art Carbonell thing and it works very good. have not tried it on a 710 yet but plan to.

Mugen spring: have no issue using the mugen springs. no bind.

Earlier posts about softer springs and my liking. MTX3 with stock grey shoe. with the red shoe I had to step up to the medium or hard depending on the track. Hard spring on a tight track and medium on a big track where you carry more speed through the corner. We all learn new stuff every day.
__________________
Just here to give the world grief.
Motorman is offline   Reply With Quote
Old 05-09-2004, 07:23 PM   #9963
Tech Elite
 
Sow&Steady's Avatar
 
Join Date: Dec 2003
Location: Va Va Voom!
Posts: 4,104
Default

Quote:
Originally posted by Motorman
... We all learn new stuff every day.
How right you are!
__________________
http://3hobby.net REVISITED V2 - Its on steroids!
https://www.facebook.com/ssteady
Sow&Steady is offline   Reply With Quote
Old 05-09-2004, 07:26 PM   #9964
Tech Master
 
Motorman's Avatar
 
Join Date: Nov 2001
Location: Michigan
Posts: 1,911
Trader Rating: 1 (100%+)
Default

clean your bearings. you would be suprised how much faster the car gets. Most people build the car and the bearings never come out again.

clean bearings will get you 2 or 3 mph.

roll your car across the floor with the brake off. if it wont roll more than 3 feet the bearings are killing it. my clean MTX will roll 6-8 feet.

All the NTC3 guys just stop we already know!
__________________
Just here to give the world grief.
Motorman is offline   Reply With Quote
Old 05-09-2004, 07:28 PM   #9965
Tech Master
 
Join Date: Nov 2001
Location: TEXAS. USA
Posts: 1,219
Trader Rating: 2 (75%+)
Default

Profoxcg,
The MTX has a lower final gear ratio then the 710.
If the track you both were running on the small side your friends MTX will pull hard by use the smaller gear ratio. This means you should gear down to get your motors power band to pull all the way the strait away. Also his motor might be a bit more powerful then yours.
PUNISHER is offline   Reply With Quote
Old 05-09-2004, 07:57 PM   #9966
Tech Master
 
Join Date: Nov 2003
Location: South FLorida
Posts: 1,104
Trader Rating: 2 (100%+)
Send a message via AIM to Profoxcg
Default

by using a larger 2nd speed pinion then i should be good, correct?

also, where can i get a shim for my sirio? i am going to use 30% nitro, i was told to add a 0.1mm shim..?
Profoxcg is offline   Reply With Quote
Old 05-09-2004, 08:00 PM   #9967
Tech Adept
 
cox049's Avatar
 
Join Date: Feb 2004
Location: DC Metro Area
Posts: 170
Default

Quote:
Originally posted by Profoxcg
actually his clutch was not slipping at all..

but I am glad you had fun also !
Today I was very happy overall with the car, the engine was on a very nice sweet spot; no bogging at lows, immediate response, very nice singing at highs... temp at 220F steady; the car was fast and agile. Than I decided to change the clutch shoe. It wasn't really necessary but the bevel was about to reach the aluminum disc/tray and the bell gap was kinda big. I had spare so what the heck. I left minimal gap for everything to just turn freely; while walking to the track to put the car in the ground I was thinking that the clutch would be engaging a little too soon... no prob I thought if that's the case I'd screw the nut in a little more.
I cleared the engine and let it go... MAN!! MAN MAN MANNN, The word to define it is Ballistic!! A couple of guys that were there with me stopped their cars to look - No kidding - One of them asked what I do to the motor... I didn't even touch the motor!

I had a revelation today brothas and sistas You have to master the clutch if you wanna succed in RC
cox049 is offline   Reply With Quote
Old 05-09-2004, 08:03 PM   #9968
Tech Prophet
 
InitialD's Avatar
 
Join Date: Feb 2002
Location: MORDOR
Posts: 19,679
Default

Quote:
Originally posted by Profoxcg
and i guess in addition you can add the set screw in them ...?
Don't know if it is necessary or if it would work. If somebody wanted to try, then the set screw needs to be mounted in the MIDDLE of the flyweight to balance it out when you mount the flyweight in the middle of the pins. Something to think and try.
InitialD is offline   Reply With Quote
Old 05-09-2004, 08:04 PM   #9969
Tech Prophet
 
InitialD's Avatar
 
Join Date: Feb 2002
Location: MORDOR
Posts: 19,679
Default Re: I LOVE MY S710

Quote:
Originally posted by Profoxcg
I love my serpent, I just need to work on the clutch... (I helped a friend setup his MTX3 and that clutch kicks butt..)
Good for you ! If you could not tell, we love our Serpents to death too. Welcome to the club.
InitialD is offline   Reply With Quote
Old 05-09-2004, 08:06 PM   #9970
Tech Fanatic
 
Join Date: Mar 2003
Posts: 783
Default Re: Re: Re: Re: Re: Re: Re: Thrustbearing after run.

Quote:
Originally posted by InitialD
On throttle, the rear hubs and wheels would jump slightly...
Hmm.. you still have this problem ?
Please refer the manual, step 3.1 :
The G22 bolt is too tall.
So the E12 bolt (the 2pcs in front) on the step 3.3 cannot keep the upper diff cover in tight condition, the 2 bolt hitting each other(G22 vs E12).
Pls check the diff assembly (mounted in the car) if you can move the diff up and down a bit, most likely you have this problem. Worn out U13 bearing could make that condition also.
Worn outdrive only make it worse.

Lower the G22 bolt 1mm, .5mm should enough.
Replace 802305 + 802306, or use the old one but find a M3x0.5
Hand Tap, re-thread the hole.
The problem will gone !

This solution is find by Pyramid, he is a happy man today.
Watchout D he is Nats no.3 now !! and he can proove his 710 is the fastest in 1st Nats yesterday.

Ooopss, there is 1 thing I forgot, he is pursuing the TQ is only because the Trophy is good
GoldFinger is offline   Reply With Quote
Old 05-09-2004, 08:09 PM   #9971
Tech Prophet
 
InitialD's Avatar
 
Join Date: Feb 2002
Location: MORDOR
Posts: 19,679
Default

Quote:
Originally posted by Motorman
All the NTC3 guys just stop we already know!
InitialD is offline   Reply With Quote
Old 05-09-2004, 08:24 PM   #9972
Tech Prophet
 
InitialD's Avatar
 
Join Date: Feb 2002
Location: MORDOR
Posts: 19,679
Default

Quote:
Originally posted by PUNISHER
Profoxcg,
The MTX has a lower final gear ratio then the 710.
If the track you both were running on the small side your friends MTX will pull hard by use the smaller gear ratio. This means you should gear down to get your motors power band to pull all the way the strait away. Also his motor might be a bit more powerful then yours.
InitialD is offline   Reply With Quote
Old 05-09-2004, 08:26 PM   #9973
Tech Prophet
 
InitialD's Avatar
 
Join Date: Feb 2002
Location: MORDOR
Posts: 19,679
Default

Quote:
Originally posted by Motorman
Mugen spring: have no issue using the mugen springs. no bind.
Dennis, are you using Mugen clutch nut or the pre-tension nut together with the Mugen silver Centax spring? The silver spring with the stock Serpent centax parts will bind.

Quote:
Originally posted by Motorman
Earlier posts about softer springs and my liking. MTX3 with stock grey shoe. with the red shoe I had to step up to the medium or hard depending on the track. Hard spring on a tight track and medium on a big track where you carry more speed through the corner. We all learn new stuff every day.
Ummm, I would have thought that harder spring for larger tracks and softer for smaller tracks or where or when available traction permits...
InitialD is offline   Reply With Quote
Old 05-09-2004, 08:32 PM   #9974
Tech Prophet
 
InitialD's Avatar
 
Join Date: Feb 2002
Location: MORDOR
Posts: 19,679
Default Re: MTX3 drive ration versusn S710

Quote:
Originally posted by Profoxcg
Does the mugen have more top end speed or did my friend's engine did the trick? he has the Sirio Evo 2 and I have the regular Sirio with the black head, but cars are stock geared, but he was able to pass me in the straghtway with no problem, his car was also on the rich side.
Stock gearing? I don't know about your track but perhaps the Mugen's stock gearing fitted your track fine. What tire diameters were on the Mugen? What was yours? Stock 1st and 2nd gearing on the Mugen is 7.42 and 5.43 respectively. Serpent is 6.62 and 4.77. If the Mugen was using 62 mm tires on your track, to be able to match his when you're using stock 17/22 pinions and 60/56 spurs is to theoretically use 54 mm tires to match his 2nd gear tire rollout.

Last edited by InitialD; 05-09-2004 at 09:09 PM.
InitialD is offline   Reply With Quote
Old 05-09-2004, 08:32 PM   #9975
Tech Adept
 
cox049's Avatar
 
Join Date: Feb 2004
Location: DC Metro Area
Posts: 170
Default

Quote:
Originally posted by InitialD
Don't know if it is necessary or if it would work. If somebody wanted to try, then the set screw needs to be mounted in the MIDDLE of the flyweight to balance it out when you mount the flyweight in the middle of the pins. Something to think and try.
I'm going to try it D and I'll report.

On another note I have the 4mm ceramic balls installed in the rear diff and so far so good. Anyway I found out that the diff balls get ruined when they get wet with any type of cleaner/degreaser/denatured alcohol/ect. This makes all the dissolved grime to get in there and grind the ball bearings. So whatever balls are installed it's wise not to let liquid get in there.

Another for you D : I mounted the rear diff with Super Grease, all ok at the track but when the diff cools down (couple of hours after use) it gets really hard to move. I blew it with hair drier to get it to OP temp and it got soft and nice again. Does this happen to you or maybe I did something wrong?

Pablo
cox049 is offline   Reply With Quote
Reply

Similar Threads
Thread Thread Starter Forum Replies Last Post
Serpent 705 J_Longbrake Nitro On-Road 4252 02-23-2015 12:34 AM
WTB: NIB Serpent 710 aN4rK1 R/C Items: Wanted to Buy 3 06-16-2006 09:23 PM
Serpent 835 JFCJ R/C Items: Wanted to Buy 3 02-20-2005 09:29 PM
Trade in Your Old Serpent 710 Parts for New Serpent 710 Parts fast_it710 R/C Items: For Sale/Trade 0 09-17-2004 12:27 AM
Serpent Impulse w/MT-12 and Serpent Starter box - cheap Solara R/C Items: For Sale/Trade 2 03-07-2003 03:01 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 02:59 PM.


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