R/C Tech Forums

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

Like Tree1Likes
Reply
 
Thread Tools Search this Thread
Old 04-17-2017, 06:06 AM   #571
Tech Adept
 
fdjizm's Avatar
 
Join Date: Jan 2010
Location: NY/NJ
Posts: 135
Default

crazy run! what motor is in there?
fdjizm is offline   Reply With Quote
Old 04-17-2017, 11:29 AM   #572
Tech Elite
 
SWTour's Avatar
 
Join Date: Sep 2003
Location: Central Coast...CALIF.
Posts: 2,865
Trader Rating: 9 (100%+)
Default The BLOWOVER

Rich Slejmar made an attempt on Saturday for a little practice for the upcoming INSANE SPEED CHALLENGE -- His car thought it was a bird!!

https://www.youtube.com/watch?v=xEbxJJodOHg
__________________
Joe Myers
R/C Racing since 1985 ~ Santa Maria, CA (Central Coast)
2001-2012 - South-West Tour R/C Oval Series...will the SWT be revived?
Things are headed towards a return of the SWT Series, but for
2017 the focus will be on the Encino Velodrome (and dirt oval racing)
SWTour is offline   Reply With Quote
Old 04-17-2017, 11:06 PM   #573
Tech Adept
 
fdjizm's Avatar
 
Join Date: Jan 2010
Location: NY/NJ
Posts: 135
Default

I'll give him an 8 on the launch, style points for flips and 6 on the landing.
SWTour likes this.
fdjizm is offline   Reply With Quote
Old 04-18-2017, 05:10 AM   #574
Tech Addict
 
Join Date: Apr 2011
Location: new york
Posts: 542
Trader Rating: 3 (100%+)
Default

New to this thread I'm curious if anyone has any knowledge on converting the center diff of a mugen mgt7 eco to a solid shaft. How are people doing it? Looking for a speed car in a couple of months and a center diff is not part of my dream kit lol.
illmatic94 is offline   Reply With Quote
Old 04-19-2017, 08:54 AM   #575
Tech Addict
 
Join Date: Jul 2010
Location: CA
Posts: 612
Trader Rating: 13 (100%+)
Default

I bought a Serpent single speed shaft and used a lathe to bring the 8mm down to 5mm on a small portion of the shaft. By default, it's a bit long when fitting the MGT7 so you need to cut it down a bit. You can use any shaft really, but 8mm is the beefier option compared to 5mm. I bought some 8mm mod 1 pinions as the center drive gear. The hard part is getting the output drives to stay on at high speeds since the only thing holding them on is a set screw. The modified end of the shaft needs a really flat surface so that there's little vibration to walk the output drives off.
RepEvox is offline   Reply With Quote
Old 04-19-2017, 03:41 PM   #576
Tech Addict
 
Join Date: Apr 2011
Location: new york
Posts: 542
Trader Rating: 3 (100%+)
Default

Quote:
Originally Posted by RepEvox View Post
I bought a Serpent single speed shaft and used a lathe to bring the 8mm down to 5mm on a small portion of the shaft. By default, it's a bit long when fitting the MGT7 so you need to cut it down a bit. You can use any shaft really, but 8mm is the beefier option compared to 5mm. I bought some 8mm mod 1 pinions as the center drive gear. The hard part is getting the output drives to stay on at high speeds since the only thing holding them on is a set screw. The modified end of the shaft needs a really flat surface so that there's little vibration to walk the output drives off.
You flattened what part of the shaft? The part that holds the 2 speed in order to bolt on the pinion gear ( used as a spur gear)? Once you do that you put on the normal outdrives and bearings and everything should fall right in place?
illmatic94 is offline   Reply With Quote
Old 04-19-2017, 09:46 PM   #577
Tech Addict
 
Join Date: Jul 2010
Location: CA
Posts: 612
Trader Rating: 13 (100%+)
Default



I bought this shaft and cut it down about 1/4 inch or so, but you'll have to find out how much needs to cut for your application. I brought the 8mm outer diamater on the cut side to 5mm exactly like the unmodified side. Then add flat spots somewhere on the 8mm region of the shaft for the spur gear adapter, pinion, whatever. You can figure out how to space it based on your motor and pinion. The other flat spot is on the 5mm end that I used a lathe for for the outdrive and set screw.
RepEvox is offline   Reply With Quote
Old 05-31-2017, 03:48 PM   #578
Tech Rookie
 
Join Date: May 2017
Posts: 1
Default New to speed runs

Hello I am new to top speed runs and looking to build a car. Any recommendations on a vehicle? I was thinking about building it off of an old Traxxas Slash chassis that I have but I'm not limiting myself so the slash just because I have a $20 chassis
ac8528 is offline   Reply With Quote
Old 06-18-2017, 05:21 PM   #579
Tech Addict
 
phildoggg's Avatar
 
Join Date: Feb 2009
Location: N.C.
Posts: 664
Trader Rating: 24 (100%+)
Default

Quote:
Originally Posted by ac8528 View Post
Hello I am new to top speed runs and looking to build a car. Any recommendations on a vehicle? I was thinking about building it off of an old Traxxas Slash chassis that I have but I'm not limiting myself so the slash just because I have a $20 chassis
almost anything can be used. i like traxxas slash 4x4 myself, but most all 4wd platforms are great. here is my Arrma typhon below. 151 mph

https://www.youtube.com/watch?v=VeFbV0V4ZWA
phildoggg is offline   Reply With Quote
Reply



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 08:44 AM.


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