Car Nitro & Gas Engines Discuss all aspects of Nitro and Gas rc car engines here!

Replacement Magnum pro .21 engine

Reply
Old 08-27-2011, 04:32 PM
  #1
YarOne
Thread Starter
 
Join Date: Jul 2011
Location: Los angeles, CA
Posts: 15
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default Replacement Magnum pro .21 engine

I need to replace my Magnum .21 pro nitro engine that blew up on me. I have not been able to find the exact motor but i do need one that will fit the original set-up of that engine.

Any suggestions??
YarOne is offline  
Reply With Quote
Old 08-27-2011, 07:18 PM
  #2
nitroexpress
 
nitroexpress's Avatar
 
Join Date: Oct 2006
Location: Sonoma, CA
Posts: 1,288
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Replacement Magnum pro .21 engine

What was the original setup?
nitroexpress is offline  
Reply With Quote
Old 09-10-2011, 11:27 AM
  #3
YarOne
Thread Starter
 
Join Date: Jul 2011
Location: Los angeles, CA
Posts: 15
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Replacement Magnum pro .21 engine

Well, im not really sure what the original set-up was i just know that is it a Vintage Great Vigor Hunter 4wd buggy. Any info would be great! Thanks!!
YarOne is offline  
Reply With Quote
Old 09-10-2011, 01:04 PM
  #4
proanti1
 
proanti1's Avatar
 
Join Date: Dec 2004
Location: Boerne, TX
Posts: 4,299
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Replacement Magnum pro .21 engine

You need the old style side exhaust .21 with a short head. Here are a few I found on ebay.

http://www.ebay.com/itm/Vintage-LEO-...item483d352e7a

Here is a used one http://www.ebay.com/itm/Vintage-Rc-E...item3a6a36dffc

Here is a non pull start variant of the same motor http://www.ebay.com/itm/Royal-21-nit...item483d352e27

If I am not mistaken, these engines are identical to the magnum (which is a clone of the OS SE-B). Personally, I would go for the Leo, these old .21's are getting hard to find. Without modification, you would not be able to put a new style big block in your car. The head would be too tall, the rear bulkhead would get in the way of the header, and the engine itself would be a bit too long.

Edit: I was looking around after I posted and found a genuine OS SE-B. It's spendy, but it is a proven engine. http://www.ebay.com/itm/O-S-Max-SE-B...item483d352fa8
proanti1 is offline  
Reply With Quote
Old 09-10-2011, 05:31 PM
  #5
YarOne
Thread Starter
 
Join Date: Jul 2011
Location: Los angeles, CA
Posts: 15
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Replacement Magnum pro .21 engine

WOW, thank you very much! I didn't think anyone would have much info on this car. I will look into all of these engines, I like the leo cause of the price and pull start. And It looks as if i could slap my existing parts back on and it would work.

Thank you soo much again.
YarOne is offline  
Reply With Quote
Old 09-10-2011, 06:15 PM
  #6
proanti1
 
proanti1's Avatar
 
Join Date: Dec 2004
Location: Boerne, TX
Posts: 4,299
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Replacement Magnum pro .21 engine

Make sure you have the room for the pull start. The heads on these engines are designed to deflect the air passing through them. There were quite a few older cars that used this type of engine, and some of them had a different layout, so not all engines came with the heads facing the right way for specific applications. The head on the Leo would have to be taken off and turned around 180 degrees to work properly, you want air to enter from the front, then move along the gentle curve of the fins. Without the head facing the right direction, these engines overheat very quickly.
proanti1 is offline  
Reply With Quote
Old 09-10-2011, 07:09 PM
  #7
YarOne
Thread Starter
 
Join Date: Jul 2011
Location: Los angeles, CA
Posts: 15
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Replacement Magnum pro .21 engine



yes, your right. ill look tomorrow if the i have room for the pull start, right now i have to use an electric rotary starter. I would i have it would fit.

Thanks.

YarOne is offline  
Reply With Quote
Old 10-12-2011, 08:32 PM
  #8
niborgreen
 
Join Date: Oct 2011
Location: , WA
Posts: 1
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Replacement Magnum pro .21 engine

I have 2 of these older vintage motors BRANDNEWINBOX never installed never fired up on the box it says Magnum pro 21/pro FSR-ABC /car

call me or text me and I can send u some pics 4253876078

TY
Robin Green
niborgreen is offline  
Reply With Quote
Old 10-20-2014, 07:56 PM
  #9
landjumpnet
 
Join Date: Dec 2011
Location: plano, TX
Posts: 5
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default

[ATTACH=CONFIG]2041410[/ATTACH]

Interested in this?
Attached Thumbnails
Click image for larger version

Name:	MAGNUM PRO (3).JPG
Views:	90
Size:	799.9 KB
ID:	2041410  
landjumpnet is offline  
Reply With Quote
Reply


Thread Tools
Search this Thread
Display Modes

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



All times are GMT -8. The time now is 01:43 AM.