I Want to Build a Go Fast RC !
 

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:whistle:

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...

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

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.:yes:

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

LX-1E would be cheap and easy.

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

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:lol:

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

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:intello:

+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.

Ultra LX-1E

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

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

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.

mechanical brakes sound like a must

Excellent advice !
Not sure I know what a BIG SPLITTER for the front is ?


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 ?