RC-Monster Forums  
RC Monster

Go Back   RC-Monster Forums > RC-Monster Area > General Discussion

Reply
 
Thread Tools Rating: Thread Rating: 4 votes, 5.00 average. Display Modes
I Want to Build a Go Fast RC !
Old
  (#1)
Bondonutz
Fat Kid Engineering
 
Bondonutz's Avatar
 
Offline
Posts: 3,634
Join Date: Jun 2009
Location: Hot as Hell West Central Coast Florida
I Want to Build a Go Fast RC ! - 05.29.2010, 08:03 PM

I have ben hanging out with a crowd on Firday nights behind the local Lowes and everyone races straight line for max speed. I made a few runs with my modded SLash 4x4 and hit 64mph befor lift off, Tried again w/o the body and hit 69mph. Anyway, Now I'm kinda hooked and want to purposely build something for this and bust the compition. They're almost all Nitro guys

Heres what I'm thinking about
http://www.horizonhobby.com/Products...rodID=LOSA0809

ANy other good candidates for this prodject about the same price ??

I have a NEU 1521 1Y and plan to run it on 6s, A RCM mount of course and possibly a home made battery tray.

Curious what you guys whom have had experience with doing something like this have to say or reccomend ?

Heres what I've come up w/via BrainG's calc
Differential Ratio: 3.3076923076923075
Transmission Ratio: 1
Other Ratio: 1
Spur Tooth Count: 47
Pinion Tooth Count: 26
Total Voltage: 22.2
Motor KV: 1577
Tire Diameter (inches): 4.5
Tire Ballooning (inches): 0.10
Motor Current Draw: 0
Motor Coil Resistance: 0.008
Spur/Pinion Ratio: 1.81 : 1
Total Ratio: 5.97929 : 1
Tire Circumference (inches): 14.77 inches (375.04 mm)
Rollout: 2.47:1
Total Motor Speed: 35009.4 RPM
Vehicle Speed: 81.87 mph (131.51 km/h)
Effective KV Value: 1577
KT constant: 0.86 oz-in/A
Motor Torque: Amperage not specified...
Final Torque: Amperage not specified...
Final Power: Amperage not specified...


I retired from RC, now life is all about guns and long range shooting.
   
Reply With Quote
Old
  (#2)
JAILBIRD
RC-Monster Carbon Fiber
 
Offline
Posts: 170
Join Date: Aug 2008
05.29.2010, 08:36 PM

How about an Ofna DM1. I'm not sure what they go for $$ wise, but there are some pretty good builds here on the forums.

-JB
   
Reply With Quote
Old
  (#3)
phildogg
RC-Monster Aluminum
 
phildogg's Avatar
 
Offline
Posts: 702
Join Date: Feb 2005
Location: n.c.
05.29.2010, 08:53 PM

A 1/10 scale would be a cheaper build and fast also. I run a tc4 for speed runs and like it seems pretty tough.


_______________________________
Slash 4x4 163mph
drc rail 150 mph
phildogg6@yahoo.com
https://www.youtube.com/channel/UC1g...MR6SqQkehkevwA
my youtube channel
  Send a message via Yahoo to phildogg Send a message via AIM to phildogg  
Reply With Quote
Old
  (#4)
Blunten
Guest
 
Posts: n/a
05.29.2010, 09:23 PM

ofna dm-1 spec is 330 on towers http://www3.towerhobbies.com/cgi-bin...?&I=LXVVS8&P=0 just buy the ofna buggy motor mount from rc-monster to make it electric
   
Reply With Quote
Old
  (#5)
skellyo
RC-Monster Brushless
 
skellyo's Avatar
 
Offline
Posts: 2,466
Join Date: Jan 2006
Location: Florida
05.29.2010, 09:43 PM

LX-1E would be cheap and easy.
   
Reply With Quote
Old
  (#6)
A RC Dude
RC-Monster Aluminum
 
A RC Dude's Avatar
 
Offline
Posts: 655
Join Date: Jan 2008
Location: foothills, North Carolina
05.29.2010, 10:48 PM

knowing the nature of my projects, i'd prob drop that motor, batt, and all onto a slab of wood directly to a 3.3 deff and good tires haha. then make a weird body to keep it on the ground


  Send a message via Yahoo to A RC Dude Send a message via AIM to A RC Dude  
Reply With Quote
Old
  (#7)
bryan
RC-Monster Carbon Fiber
 
bryan's Avatar
 
Offline
Posts: 489
Join Date: Jul 2009
Location: maryland
05.29.2010, 11:12 PM

Go with your gut, looks like you got it figured out, plus you really got my attention.
P.S. Your still going to need some weight up front
   
Reply With Quote
Old
  (#8)
PBO
RC-Unobtainium
 
PBO's Avatar
 
Offline
Posts: 1,032
Join Date: Jul 2008
Location: Sydney
05.29.2010, 11:58 PM

You'll get an 8ight buggy well over 100mph on 6S using a 2650 with 43/25

I'd love to see a L8ight tweaked up for speed runs though. Can't imagine why you'd consider a 1521 though? unless you want to be running continuously...I'd use a 1515 1.5 - good for a couple of 6S passes before you let it cool down

Get some of these;

http://www.grpgandini.it/index.php?p...chk=1&Itemid=6

Vertical stabilisers & no wing at the back, big splitter at the front. Good to go


Enhanced Rustler 1515 1.5 MMM
Losi 8ight-T
   
Reply With Quote
Old
  (#9)
swiftneed
RC-Monster Carbon Fiber
 
swiftneed's Avatar
 
Offline
Posts: 322
Join Date: Jul 2006
Location: Brooklyn NY
05.30.2010, 12:01 AM

Your really going to need weight upfront I have the neu 1521 1y original and its ballistic on 6s it is hard to control the steering in the straight full throttle, I guess check your punch control and ripp it and have everyone stand out of the way LOL I do it with my XT8 and its insane


  • RCM XT8 MMM NEU1521 1Y AKA TIRES HITEC 7955 TG 6S
  • MBX6T MMM CC 1518 HITEC 7955 BRAKE 5645 MG 6S LIPO
   
Reply With Quote
Old
  (#10)
scarletboa
RC-Monster Aluminum
 
scarletboa's Avatar
 
Offline
Posts: 929
Join Date: Mar 2009
Location: Las Vegas NV
05.30.2010, 01:08 AM

Quote:
Originally Posted by skellyo View Post
LX-1E would be cheap and easy.
+1

i've seen some really fast buggies. my lx-1e should be here on tuesday and i bought a 18-20t novak pinion combo to do some speed runs on 6s with the castle 2200kv motor i bought for it. should be good for at least 80mph. any faster and i will need belted tires.

i've seen another lx-1e in person and the quality is very good for the price. the quality is better than my CEN matrix, but not quite as good as my crt-x2. it isn't too nimble on the track, but it should be just fine for speed runs. if you want crazy speed, limit the shock travel to lower it, use a 2200 or 2650 motor with 6s and a 26t pinion, and get belted tires. that setup should be good for at least 90mph. the center diff will make it easier to keep the front down as well.


They say a good mechanic only needs 2 tools - WD40 & Duct tape. If it moves, and its not supposed to, duct tape. If it doesn't move, and its supposed to, WD40.
   
Reply With Quote
Old
  (#11)
PBO
RC-Unobtainium
 
PBO's Avatar
 
Offline
Posts: 1,032
Join Date: Jul 2008
Location: Sydney
05.30.2010, 04:50 AM

Ultra LX-1E

I'd consider adding downforce before weight...no need to blunt the acceleration


Enhanced Rustler 1515 1.5 MMM
Losi 8ight-T
   
Reply With Quote
Old
  (#12)
TexasSP
Something, anything, nothing
 
TexasSP's Avatar
 
Offline
Posts: 2,747
Join Date: Mar 2006
Location: Houston, TX
05.30.2010, 09:04 AM

Talk to snellemin and sonnyhoutx as they both are go fast guys.


www.cubicle101.com
A friends comic strip website.
   
Reply With Quote
Old
  (#13)
Bondonutz
Fat Kid Engineering
 
Bondonutz's Avatar
 
Offline
Posts: 3,634
Join Date: Jun 2009
Location: Hot as Hell West Central Coast Florida
05.30.2010, 10:19 AM

The input and suggestions are much appreciated gentlemen.

I'd rather stick with 1/8 scale over 1/10 scale, I like the bigger RC's and definitely want a full body rather than a 1/8 scale buggy format.

The DM1 is a hellava good foundation but one of the faster guys at the spot has a real nice DM1 running a 2650 on 4s and it's wicked fast and sounds like a jet ! After 2-3 quick runs he thermals, I think thats kinda dumb. I want to be able to rip pass after pass and/or just screw around and not worry about heat issues. Hell, 80mph is pretty good start, I may not need anymore ?

I'm thinking the 1521 due to abundance of efficent power, but I also have several other motors in my treasure drawer to choose from. So I have some options.
Castle 2200kv
Castle 2650kv
Castle 1800kv
Neu 1512 2550kv
Tekno 2000kv

The draw back of where they race at is it's only about 500 hundred feet of clean smooth concrete, on each end it's cobblely uneven rough asphault so she's gotta get up to speed and back down again quickly.


I retired from RC, now life is all about guns and long range shooting.

Last edited by Bondonutz; 05.30.2010 at 10:22 AM.
   
Reply With Quote
Old
  (#14)
TexasSP
Something, anything, nothing
 
TexasSP's Avatar
 
Offline
Posts: 2,747
Join Date: Mar 2006
Location: Houston, TX
05.30.2010, 11:32 AM

mechanical brakes sound like a must


www.cubicle101.com
A friends comic strip website.
   
Reply With Quote
Old
  (#15)
Bondonutz
Fat Kid Engineering
 
Bondonutz's Avatar
 
Offline
Posts: 3,634
Join Date: Jun 2009
Location: Hot as Hell West Central Coast Florida
05.30.2010, 11:59 AM

Quote:
Originally Posted by PBO View Post
Vertical stabilisers & no wing at the back, big splitter at the front. Good to go
Excellent advice !
Not sure I know what a BIG SPLITTER for the front is ?


Quote:
Originally Posted by TexasSP View Post
mechanical brakes sound like a must
Yeah, I actually have ben contenplating this. I've ben bouncing back and forth looking at Mikes and Tekno chassis and the option of installing Servo brakes myself.
I'd much rather mod something myself to keep expense down considering this is something I'd only drive once in a while. I already have everything I need to build this except a roller and a motor mount.
Need to find pictures of someone's stock chassis with servo brakes to see if theres even enough room to do this ?
One of my buddys bought a rip off of Mikes Slipperental a few months ago and he hasn't ben able to tune it to his likeing(imagine that?) He's willing to donate it to this build, like to see if this peice of shiz will work. It would be nice to have a slipper for the concrete and 6s ?


I retired from RC, now life is all about guns and long range shooting.
   
Reply With Quote
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes Rate This Thread
Rate This Thread:

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 On

Forum Jump



RC Monster




Powered by vBulletin® Version 3.8.1
Copyright ©2000 - 2019, Jelsoft Enterprises Ltd.
vBulletin Skin developed by: vBStyles.com