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-   -   Bowman rings on NEW DA engines? (https://www.rccanada.ca/rccforum/showthread.php?t=200554)

Mike Anderson 07-19-2013 07:58 PM
Bowman rings on NEW DA engines?
 
I see that ThunderboltRC is selling new DA60's &DA120's with Bowman rings installed. Why? What problem with DA engines is this trying to solve?

http://www.thunderboltrc.com/index.p...oducts_id=1644

http://www.thunderboltrc.com/index.p...oducts_id=1645

bradleyban 07-19-2013 08:22 PM
Re: Bowman rings on NEW DA engines?
 
I believe that bowman rings aren't so much to fix a problem as they are a mod for an engine. For the DA-60 and 120 it helped smoothed them out a bit and raised the compression slightly

lannie 07-20-2013 07:43 PM
Re: Bowman rings on NEW DA engines?
 
Quote:
Originally Posted by bradleyban (Post 1361807)
I believe that bowman rings aren't so much to fix a problem as they are a mod for an engine. For the DA-60 and 120 it helped smoothed them out a bit and raised the compression slightly
I could see a ring increasing compression, lasting longer etc. but for the life of me I can not see why a DA engine with decent compression would be smoothed out?

bradleyban 07-20-2013 08:13 PM
Re: Bowman rings on NEW DA engines?
 
Quote:
Originally Posted by lannie (Post 1362010)
I could see a ring increasing compression, lasting longer etc. but for the life of me I can not see why a DA engine with decent compression would be smoothed out?
The less blow by on the ring will make the engine run smoother. That's straight from Frank Bowman himself. We had seen this on a mintor 60 that had huge piston clearance.


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