R/C Tech Forums

Go Back   R/C Tech Forums > General Forums > Nitro Off-Road

Thread Tools Search this Thread
Old 10-18-2009, 12:26 AM   #1
Tech Rookie
Join Date: Dec 2008
Posts: 10
Default 4 Stroke engine options

I did a quick search and came up with nothing. I'm looking for info and suggestions on what engine might work best in a 1/8th scale size project. So far my primary concern is over heating, considering a 4 stroke airplane motor is designed to have constant airflow. I'm also concerned with the weight to hp ratio being less than ideal. After minimal research my top pick is the OS FS-120, its physically bigger than I would like (5.5" tall) but seems to have the right rpm and power output (12k and 2.1 hp). Suggestions?
motor_head is offline   Reply With Quote
Old 10-18-2009, 02:27 PM   #2
Tech Addict
Goomba_7's Avatar
Join Date: Jul 2006
Location: Darien, IL
Posts: 534
Trader Rating: 5 (100%+)

I read in another forum or another post on RCtech that the equivalent 4stroke size for a .21 buggy engine is approximately .46 size. As for cooling you're probably going to have to attach some kind of fan on the car, you could make it belt driven off of the flywheel or you could try an electric fan you just have to figure out how to power it.
Serpent Cobra S811, Which ever engine is running good for me, VP Fuel, Savox Servos

"A bad race day is still better than a Good work day!"
Goomba_7 is offline   Reply With Quote

Similar Threads
Thread Thread Starter Forum Replies Last Post
OS FS26S-C 4-stroke development mxwrench Offroad Nitro Engine Forum 1763 12-30-2017 03:56 PM
Sirio S21 CL7B .21 Long Stroke marki Offroad Nitro Engine Forum 398 10-12-2011 02:23 AM
"Thump-8" 4 stroke 1/8th scale engine DP-buggyboy Onroad Nitro Engine Zone 91 07-14-2011 02:17 PM
New Novarossi .21 Engine Parts & Plugs F/S Nitro-mech R/C Items: For Sale/Trade 17 08-23-2008 08:39 AM
Fantom Engine Manual = ABC Engine Bible Horatio Monster Trucks 9 02-05-2007 08:35 AM
Trinity G4 - Team Magic G4 E-Type puma1824 Nitro On-Road 3128 10-04-2005 05:17 AM

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 08:29 PM.

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
Powered By: vBulletin v3.9.2.1
Privacy Policy | Terms of Use | Advertise Content © 2001-2011 RCTech.net