Notices
RC Car General Discussions This forum is for all general discussions related to radio control cars. Check forums below for more specific categories if applicable.

1/4 Scale Pro Mod Drag Car build

Old 08-27-2023, 02:03 AM
  #1  
Rccrdt
Junior Member
Thread Starter
 
Join Date: Aug 2023
Posts: 4
Likes: 0
Received 0 Likes on 0 Posts
Default 1/4 Scale Pro Mod Drag Car build

Hello everyone, I wanted to share the need for advice here as well since I had done this on quarterscalelegends in the past but I can't use the credentials anymore. I'm building a quarter scale pro mod made of 0.47 inches full-tube chassis, about 45-inches long and 12-inches tall. I only have the finished chassis, fuel tank, a 55 pounds servo capacity and I'm completing the front axle using a CNC lathe, nothing else. In the project, being homemade by me and another friend, I want it to be as cheap as possible, especially to save money for the motor and rear axle drive system. without engine it should weigh around 20 pounds, does anyone have a professional engine in mind that I can take into consideration? being not too excessive economically, having a steady gait for giant scales. Thank you!

Last edited by Rccrdt; 08-27-2023 at 02:10 AM.
Old 08-27-2023, 04:57 PM
  #2  
1QwkSport2.5r
 
1QwkSport2.5r's Avatar
 
Join Date: Oct 2006
Location: Cottage Grove, MN
Posts: 10,420
Received 78 Likes on 71 Posts
Default

Giant scale (1/4 and bigger) and cheap do not go hand in hand. Way back when, a Conley v8 would cost you $8-10k depending on induction. The truck kit was another $7-12k depending on setup and accessories. I would say to find a Conley v8 engine, but they are pretty rare. Anything Chinese ain’t going to be worth spit, but you have some options there. Toyan makes a v8 I think. Not as powerful as a Conley, plus you’d have to build it.
Old 08-28-2023, 11:39 AM
  #3  
Rccrdt
Junior Member
Thread Starter
 
Join Date: Aug 2023
Posts: 4
Likes: 0
Received 0 Likes on 0 Posts
Default

I was searching somethin way more cheapy than Conley. I found some engine for airplanes that goes from 60 to 80 ccs like rcgf, theyre pretty interestin since this are under 400 $ and for the torque & hp they have is pretty stunning. Btw this is not somethin made by a fast decision since I need to get before all servos and arms.
Old 08-28-2023, 03:32 PM
  #4  
1QwkSport2.5r
 
1QwkSport2.5r's Avatar
 
Join Date: Oct 2006
Location: Cottage Grove, MN
Posts: 10,420
Received 78 Likes on 71 Posts
Default

I think you’ll end up being pretty disappointed if you actually get it together. I think you need to get your driveline sorted before picking a power plant. A sub-80cc gas 2-stroke is going to be pretty lame in a large scale heavy vehicle. To say their power is stunning…. That’s a bit much. They will not make that advertised power in your application. 2/3 at best. It could* work, but lacklusterly.
Old 08-29-2023, 12:27 AM
  #5  
Rccrdt
Junior Member
Thread Starter
 
Join Date: Aug 2023
Posts: 4
Likes: 0
Received 0 Likes on 0 Posts
Default

I know I need to choose the best option for this, If I had a large budget I would definitely buy a rtr 1/4 drag car. But for now, I'm trying to do it by myself and in a cheap way. Also I'm trying to find the most lightweight parts on the net for the reason u wrote, and yes, drivetrain will be made by me so it will fit the chassis for sure. Thanks for the fedbk

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


Thread Tools
Search this Thread

Contact Us - Manage Preferences - 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.