Go Back  R/C Tech Forums > General Forums > Nitro Off-Road > Offroad Nitro Engine Forum
Want input on novarossi plus 21-4 >

Want input on novarossi plus 21-4

Want input on novarossi plus 21-4

Old 01-18-2011, 05:34 PM
Tech Initiate
Thread Starter
jimmy302's Avatar
Join Date: Jul 2010
Location: socal
Posts: 44
Default Want input on novarossi plus 21-4

Want to know what is up, thinking of buying one. Thanks
jimmy302 is offline  
Old 01-18-2011, 05:42 PM
Tech Regular
Chad Millikan's Avatar
Join Date: Jun 2008
Location: Norwalk, CA
Posts: 358

The engine is the $&@!. Great power band great run time parts are easy to get. Easy to tune. If you want more info the engine has it's own thread and houstons engine service is an expert when it comes to novas
Chad Millikan is offline  
Old 01-18-2011, 05:57 PM
Tech Master
iTrader: (14)
Join Date: May 2005
Location: michigan
Posts: 1,678
Trader Rating: 14 (100%+)

i run this engine in my mugen with the 9901 pipe and the 42030 header - i love it. i still think the GRP engine from a couple years back is by far the best engine i have owned, but this one is not far back. has great power everywhere and easy to tune. it doesnt have the top end like the new os speed, but i use the standard 21-4, i dont have the 21-4c tuned edition, that is the next motor im getting when this one wears out. i have probably 6 gallons on this motor and its still tight. only replaced the rear bearing 2 times...i first one went due to my poor maintanance, the other was an avid bearing i just replaced. con rod has some slop but not enough to cause tuning/running issues.

i also run the M2C variable weight clutch, o'donnell 97t plug, and 30% nitrotane fuel.
o.s. power is offline  
Old 01-18-2011, 06:13 PM
Tech Master
iTrader: (2)
Join Date: Jan 2009
Posts: 1,779
Trader Rating: 2 (100%+)

Originally Posted by jimmy302 View Post
Want to know what is up, thinking of buying one. Thanks
Inputs? Plenty here:


ganymede is offline  
Old 01-18-2011, 07:17 PM
Tech Fanatic
iTrader: (8)
Join Date: Oct 2009
Posts: 835
Trader Rating: 8 (90%+)

The motor is great! If you tune it right it will run forever, and still have tons of power! Most of the guys at my lhs run this motor and are very pleased!
Tha Skinny 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 Off
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 2018 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.