Like Tree6Likes
  • 2 Post By Roelof
  • 2 Post By BIGTIME
  • 2 Post By RsA89

ProTek CR21

Old 09-23-2022, 06:04 PM
  #1  
Tech Master
Thread Starter
iTrader: (10)
 
E1 Diablo's Avatar
 
Join Date: Jul 2011
Location: East TN
Posts: 1,548
Trader Rating: 10 (100%+)
Default ProTek CR21

PROTEK RC ANNOUNCES NEW CR21 3-PORT .21 OFF-ROAD ENGINE
Features same DNA as Successful ProTek Samurai Line but Suggested MSRP Under $300
ProTek RC is announcing its new CR21 3-port .21 off-road engine with the same DNA as its highly successful Samurai engine line, but with a suggested retail price of less than $300. The budget-friendly ProTek CR21 is now available at AMainHobbies.com or through your local track store or hobby shop.
The CR21 features a newly designed crankshaft to improve engine response and a lightweight piston that further assists with a crisp engine response on throttle input. The combustion chamber design optimizes low to medium RPM ranges, perfect for newer racers, while still offering high performance output at high speeds for more experienced drivers. And it is easy to tune and stabilize with a 2-needle carburetor with 6mm and 7mm inserts available.
An “EBIS” version of the ProTek RC CR21 is also available at amainhobbies.com, featuring the engine break-in services of RC racing and industry legend Adam Drake.
ProTek RC CR21 Specifications:
Displacement: 3.49cc
Bore: 16.27mm
Stroke: 16.8mm
Practical RPM: 4,000-40,000
Maximum Output: 2.45ps/33,000 RPM
Weight: 381g
Included Standard Equipment: T-P3 glow plug, orange 6mm venturi, yellow 7mm venturi, exhaust seal
For more information on the ProTek RC CR21, click the links below:
ProTek RC CR21: https://www.amainhobbies.com/protek-rc-cr21.../p1407302
ProTek RC CR21 ‘Drake-In’ Break In Service provided by Adam Drake: =AT3gL5FQxW4hMUKfAjVwDxFshncJ3VybJcVIrfHbfWEC-e8vfGlK4o_mgl3dKTJHcjREUSlcPOOkxHg-03G1F12GgqcioBSbnIES9G3m2TshhwbvMsnrtJsHdeoqZ3eOVr OX5rbteHGwG0aX8MlBkdO0iXCClOUJankShJtOAksPt5HZShGS p7Wg6rN9MKiWAVsCZhS__A]https://www.amainhobbies.com/protek-rc-cr21.../p1449079







E1 Diablo is offline  
Old 09-24-2022, 02:55 AM
  #2  
Tech Lord
 
Roelof's Avatar
 
Join Date: Aug 2007
Location: Holland
Posts: 11,055
Default

Well, probably just this one:
O.S. 21XR-B ver.III 1CY00 - WORLD CHAMPION PRODUCTS

But in a more fancy jacket.....
petersen114 and E1 Diablo like this.
Roelof is offline  
Old 09-24-2022, 09:42 AM
  #3  
Tech Master
Thread Starter
iTrader: (10)
 
E1 Diablo's Avatar
 
Join Date: Jul 2011
Location: East TN
Posts: 1,548
Trader Rating: 10 (100%+)
Default

They're the same motor. The Protek is dressed up a little with the black coating. Can't beat the price on the Protek.

Last edited by E1 Diablo; 09-24-2022 at 08:58 PM.
E1 Diablo is offline  
Old 09-29-2022, 04:12 PM
  #4  
Tech Apprentice
 
Join Date: May 2019
Location: USA
Posts: 93
Default

The Ielasi Dusty R 22’ is based of the same engine also. I wonder if Protek had any modifications done to it.
Medic29358 is offline  
Old 10-02-2022, 05:45 PM
  #5  
Tech Master
Thread Starter
iTrader: (10)
 
E1 Diablo's Avatar
 
Join Date: Jul 2011
Location: East TN
Posts: 1,548
Trader Rating: 10 (100%+)
Default

Internals


E1 Diablo is offline  
Old 10-02-2022, 06:25 PM
  #6  
Tech Elite
iTrader: (109)
 
BIGTIME's Avatar
 
Join Date: Jan 2011
Posts: 2,189
Trader Rating: 109 (99%+)
Default

FPO2 all day if I'm on a budget.
kgombe and Jaredf like this.
BIGTIME is offline  
Old 10-03-2022, 12:39 PM
  #7  
Tech Fanatic
iTrader: (1)
 
Join Date: Dec 2016
Location: New Jersey
Posts: 762
Trader Rating: 1 (100%+)
Default


I think that protek cr21 is just a rebrand of this one it looks like.

edit didn’t see roefl already said this.

the one ielasi is based on this engine to but has dlc and a little bit of modding.
jersey is offline  
Old 10-03-2022, 05:29 PM
  #8  
R/C Tech Elite Member
 
Join Date: Mar 2022
Location: Central Florida
Posts: 167
Default

Id be interested if it was the whole engine and pipe combo for 300.

For the price you pay once you add a pipe and manifold you’re more than the Flashpoint FP02 combo, which is based off OS as well.
Jaredf is online now  
Old 10-13-2022, 05:11 PM
  #9  
Tech Adept
iTrader: (2)
 
Join Date: Apr 2017
Posts: 147
Trader Rating: 2 (100%+)
Default

Protek CR21 broken in by Drake arrived yesterday, headed out to The Dirt in Perris. Followed the instructions on how to break in and was able to put some tanks through it. Used the 6mm venturi and ran it rich all night, still had plenty of power. Idles well. Very impressed.
Used the Flashpoint header and pipe.
wely324 and Jaredf like this.
RsA89 is offline  
Old 10-28-2022, 11:52 AM
  #10  
Tech Rookie
 
Join Date: Jul 2020
Posts: 3
Default

iam about to order this engine from amain hobbies in the description it says the protek 2060 pipe is recommended im wondering if the os 2060 the same pipe.. i already own the os 2060
cp1freakyd is offline  
Old 10-28-2022, 03:43 PM
  #11  
R/C Tech Elite Member
 
Join Date: Mar 2022
Location: Central Florida
Posts: 167
Default

Originally Posted by cp1freakyd View Post
iam about to order this engine from amain hobbies in the description it says the protek 2060 pipe is recommended im wondering if the os 2060 the same pipe.. i already own the os 2060
Being most (all?) Protek engines are OS based, I would think so
Jaredf is online now  
Old 11-20-2022, 10:44 PM
  #12  
Tech Rookie
 
Join Date: Jul 2020
Posts: 3
Default

hey guys i will be running 20% nitro do i need to remove a shim?
cp1freakyd is offline  
Old 11-28-2022, 08:29 PM
  #13  
Tech Rookie
 
n8meister's Avatar
 
Join Date: Mar 2021
Posts: 7
Default

Originally Posted by RsA89 View Post
Protek CR21 broken in by Drake arrived yesterday, headed out to The Dirt in Perris. Followed the instructions on how to break in and was able to put some tanks through it. Used the 6mm venturi and ran it rich all night, still had plenty of power. Idles well. Very impressed.
Used the Flashpoint header and pipe.
How did it go? Thinking about getting this engine as well as the flashpoint is not available at the moment…
n8meister is offline  
Old 11-30-2022, 09:32 AM
  #14  
Tech Adept
iTrader: (2)
 
Join Date: Apr 2017
Posts: 147
Trader Rating: 2 (100%+)
Default

Originally Posted by n8meister View Post
How did it go? Thinking about getting this engine as well as the Flashpoint is not available at the moment…
I haven't driven the buggy since i went to The Dirt last. The little I ran it I was impressed. I would recommend getting the Drake Break in version. If you're needing a pipe and header, the Flashpoint is a good deal.
RsA89 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 - Do Not Sell My Personal Information -

Copyright © 2022 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.