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All Forums >> RC Cars, Buggies, Trucks, Tanks and more >> RC Car Engines >> Car Nitro & Gas Engines >> Break in bench video
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Break in bench video - 9/1/2008 6:53:07 PM   
supertib


 

Posts: 3720
Joined: 3/30/2004
From: , MB, CANADA
Status: online 		well I finally got around to taking a short video of how I use a break in bench.... the video is clips of tank #4 and #5..the motor has already been heat cycled using a heat gun, as well as initially idled to seat the bearings...Usually around tank 3 I start to push the motor a little harder, and slowly but steadily I push the motors harder and harder till eventually I am opening them right up...If you notice the motor is blowing lots of smoke...as well the prop produces a significant amount of load and wont let the motor over rev...if you try to push RPM to far the motor will reach a certain RPM then just start to sag till you let off the trigger....I have done dozens of engines using this method with excellent results, i can have a motor track ready in as little as 4 tanks of fuel.......only downside is this is deafening, i usually wear ear plugs but I forgot to bring some when I shot the video..

http://www.youtube.com/watch?v=VuP0H3Ot1lM

_____________________________

seeing is believing !
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RE: Break in bench video - 9/1/2008 7:58:19 PM   
Spetz


 

Posts: 1450
Joined: 9/7/2007
From: , CYPRUS
Status: offline 		Nice work
That prop seems pretty small though, is it actually putting enough load on the engine?

(in reply to supertib)
       Post #: 2

RE: Break in bench video - 9/1/2008 8:04:40 PM   
supertib


 

Posts: 3720
Joined: 3/30/2004
From: , MB, CANADA
Status: online
quote:

ORIGINAL: Spetz

Nice work
That prop seems pretty small though, is it actually putting enough load on the engine?



the prop is insanely pitched..its almost like pushing a flat blade...the amount of air it pushes is insane....the load of that prop is beyond the load you would ever see in any properly geared MT or Truggy..on a 21 the motor will hit around 30 000 RPM before it will fall off pipe and push no further...the prop is short for safety reasons, but to compensate its built with a very steep pitch, this is a specially designed prop, it is not an airplane prop converted....no plane motor would ever use a prop with this pitch, its far too aggressive....

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seeing is believing !

(in reply to Spetz)
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RE: Break in bench video - 9/1/2008 9:51:13 PM   
Over_revO


 

Posts: 132
Joined: 5/4/2008
From: Longueuil, QC, CANADA
Status: offline 		Seemes to work good!

Nice setup Neil.


Mike

(in reply to supertib)
       Post #: 4

RE: Break in bench video - 9/1/2008 10:07:33 PM   
Spetz


 

Posts: 1450
Joined: 9/7/2007
From: , CYPRUS
Status: offline 		What kind of prop is it then?

(in reply to Over_revO)
       Post #: 5

RE: Break in bench video - 9/1/2008 10:15:17 PM   
supertib


 

Posts: 3720
Joined: 3/30/2004
From: , MB, CANADA
Status: online
quote:

ORIGINAL: Spetz

What kind of prop is it then?



its from the RD Logics break in bench !

_____________________________

seeing is believing !

(in reply to Spetz)
       Post #: 6

RE: Break in bench video - 9/1/2008 11:08:19 PM   
Colt4g63


 

Posts: 311
Joined: 4/30/2005
From: New Albany, IN, USA
Status: offline
quote:

ORIGINAL: supertib


quote:

ORIGINAL: Spetz

What kind of prop is it then?



its from the RD Logics break in bench !

Thats the same prop I use as I use the RD Logics bench. Nice tool to have without a doubt.

_____________________________

Adam Blevins, Owner & Operator of AB Mods
X-Dyno equipped

(in reply to supertib)
       Post #: 7

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All Forums >> RC Cars, Buggies, Trucks, Tanks and more >> RC Car Engines >> Car Nitro & Gas Engines >> Break in bench video
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