Go Back  R/C Tech Forums > General Forums > Monster Trucks
Revo 3.3 build under 7lbs >

Revo 3.3 build under 7lbs

Revo 3.3 build under 7lbs

Old 12-17-2008, 11:30 AM
  #16  
Tech Elite
iTrader: (96)
 
Join Date: Sep 2005
Location: Mass.
Posts: 3,470
Trader Rating: 96 (100%+)
Default

Couldn't resist and bought the axle carriers, brake rotor, alum. balls, alum. posts, and alum. pivot balls. I only race so hopefully the integrity of the alum stuff won't be an issue.

I"ll post pics of the total weight savings with these parts. Not much, but I cant leave well enough alone.
K.Copeland is offline  
Old 12-18-2008, 04:17 AM
  #17  
Tech Regular
iTrader: (2)
 
fhm555's Avatar
 
Join Date: Mar 2007
Posts: 457
Trader Rating: 2 (100%+)
Default

Never had any luck with the traxxas aluminum pivot balls.
fhm555 is offline  
Old 12-18-2008, 04:44 AM
  #18  
Tech Elite
iTrader: (96)
 
Join Date: Sep 2005
Location: Mass.
Posts: 3,470
Trader Rating: 96 (100%+)
Default

Yeah, it was something I knew already, and in the end, will probably end up with Lunsford stuff.

I looked into a Lunsford screw set for the truck also, but at nearly $250 , dont' see it happening.


FHM- which engine is that, .12 or .15 ? How does it do pushing around that much weight?

Last edited by K.Copeland; 12-18-2008 at 06:22 AM.
K.Copeland is offline  
Old 12-18-2008, 05:56 PM
  #19  
Tech Elite
iTrader: (551)
 
wrightcs77's Avatar
 
Join Date: Mar 2007
Location: Blaine, MN
Posts: 3,827
Trader Rating: 551 (100%+)
Default

I had my 2.5 Revo down to 7 lbs 1oz w/o fuel. It did have X-wings in front, a wing, standard chassis and a NiMh 5 cell pack. I did every trick. Here was my list.

Stock chassis with nearly 50 holes in it. Cut weight in half.
titanium axles
titanium/aluminum u-joints
every screw aluminum or titanium
titanium rocker posts (aluminum ones broke too easily)
drilled out bulkheads, body mounts, roll bar, wing mount, wing (older small CRT wing with 80 holes in it)
No center brace, front and rear braces cut to half thickness
Cut skidplates, no bumpers
Lightened flywheel (use stock size, not the larger Traxxas one)
Aluminum pushrods
Ti hingepins
No radio boxes
X-wings
RD Quickturn
RD 23mm hex adaptors
40 Series Wabash rims, narrowed with Response tires
Mugen tank

My X-wings are like a Quickturn but in between the front diff and the front wheels. So I basically had 3 one way bearing in the front end and it was still 7 lbs 1 oz.

If I would have gone lipo, I would have been under 7 lbs. I did nickname it Sub7 as that was my goal. I ran a modded 2.5 in it and it was insane. I posted the fastest single lap at an event (including 8th buggies) and my MT times would have qualified in the buggy main at every race I raced it at that summer. That was 3 years ago. I loved a light truck with a stock or modded 2.5. With my mod motor I could get 12-15 minutes on a tank (pitted 1 time in a 30 minute main, track was small, but that is still impressive) and it still had great power. Not sure how a light truck would be with a bigger HP motor.
wrightcs77 is offline  
Old 12-19-2008, 08:33 AM
  #20  
Tech Addict
iTrader: (30)
 
Madbrad's Avatar
 
Join Date: Oct 2005
Posts: 734
Trader Rating: 30 (100%+)
Default

Originally Posted by wrightcs77
I had my 2.5 Revo down to 7 lbs 1oz w/o fuel. It did have X-wings in front, a wing, standard chassis and a NiMh 5 cell pack. I did every trick. Here was my list.

Stock chassis with nearly 50 holes in it. Cut weight in half.
titanium axles
titanium/aluminum u-joints
every screw aluminum or titanium
titanium rocker posts (aluminum ones broke too easily)
drilled out bulkheads, body mounts, roll bar, wing mount, wing (older small CRT wing with 80 holes in it)
No center brace, front and rear braces cut to half thickness
Cut skidplates, no bumpers
Lightened flywheel (use stock size, not the larger Traxxas one)
Aluminum pushrods
Ti hingepins
No radio boxes
X-wings
RD Quickturn
RD 23mm hex adaptors
40 Series Wabash rims, narrowed with Response tires
Mugen tank

My X-wings are like a Quickturn but in between the front diff and the front wheels. So I basically had 3 one way bearing in the front end and it was still 7 lbs 1 oz.

If I would have gone lipo, I would have been under 7 lbs. I did nickname it Sub7 as that was my goal. I ran a modded 2.5 in it and it was insane. I posted the fastest single lap at an event (including 8th buggies) and my MT times would have qualified in the buggy main at every race I raced it at that summer. That was 3 years ago. I loved a light truck with a stock or modded 2.5. With my mod motor I could get 12-15 minutes on a tank (pitted 1 time in a 30 minute main, track was small, but that is still impressive) and it still had great power. Not sure how a light truck would be with a bigger HP motor.

Got any pictures of the truck?
Madbrad is offline  
Old 12-19-2008, 08:49 AM
  #21  
Tech Elite
iTrader: (96)
 
Join Date: Sep 2005
Location: Mass.
Posts: 3,470
Trader Rating: 96 (100%+)
Default

Well, I got some goodies in the mail yesterday, unfortunately the other things will probably be delayed due to the impending storm here.


I'm going to shoot for 8.4lbs , which will give me more of what I wanted. A slightly more agile truck in the air, and speed out of the corners.
K.Copeland is offline  
Old 12-23-2008, 03:22 AM
  #22  
Tech Elite
iTrader: (551)
 
wrightcs77's Avatar
 
Join Date: Mar 2007
Location: Blaine, MN
Posts: 3,827
Trader Rating: 551 (100%+)
Default

Originally Posted by xrayeddy
Anyone know where I can find the ti. stub axles? I did a search and came up with nothing.


Thanks.
If I remember right, CNR (Crazy Nut Racing) made some nice ones. Would not trust 3Racing or cheap ones off ebay.
wrightcs77 is offline  
Old 12-23-2008, 03:25 AM
  #23  
Tech Elite
iTrader: (551)
 
wrightcs77's Avatar
 
Join Date: Mar 2007
Location: Blaine, MN
Posts: 3,827
Trader Rating: 551 (100%+)
Default

Originally Posted by Madbrad
Got any pictures of the truck?

No pics that I can find, sorry.

I ran this the summer before frog legs and center diff came out. Worked incredibly well. Not sure how it would work on a big air track as the truck would be a little more difficult to adjust in mid air.
wrightcs77 is offline  
Old 12-23-2008, 09:53 AM
  #24  
Tech Adept
 
Join Date: Sep 2008
Posts: 175
Default

Originally Posted by danyak101
A couple of yrs ago many of us were tryion gto build the lightest Revo's to race with. After a season of racing in very competitive events we all found that the revo handles with a bit more weight to it. 8.5-10lbs seems like the standard. Many of us would find better traction and more attitude control while jumping with heavier tires as well. Just an FYI. The truck looks beautiful. On a smooth track the light trucks do well for sure or anything indoors where low end acceleration is beneficial critical to going fast. It was the larger outdoor rough tracks that the heavy trucks did better on. Slayden's, Tim Roberts, Roy Pitchlin's, and many other pro Traxxas drivers never got their trucks too light because they would get all twicthy and harder to keep in control. However with heavier wheels and lighter wheels I think you could use them as a tuning option. Or i bet a light truck like that would run awesome on a nice little .12 size motor. Just an idea. many of us ran the PL Wabash Wheels with Panther tires.
Your right on. Mine is right about 8.75 lbs. I actually added some weight back get her planted a bit better.
Revo-daddy is offline  

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
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
Trackbacks are On
Pingbacks are On
Refbacks are Off


Thread Tools
Search this Thread

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service -

Copyright © 2024 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.