Webra .50 Speed  
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All Forums >> Glow Engines, Gas Engines, Fuel & Mfg Support Forums >> Tachometer Readings >> Webra .50 Speed
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Webra .50 Speed - 4/28/2008 1:19:47 AM   
CustomPC


 

Posts: 349
Joined: 4/19/2004
From: SydneyNSW, AUSTRALIA
Status: offline 		I broke-in my Webra .50 Speed yesterday and recorded the following figures after three 14oz tanks ran rich just breaking from a slight 4-stroke.

Fuel was 20% castor, 80% Methanol (Nil Nitro).

APC 12x4 13,200 peaked.
APC 10x7 14,000 with room for more. I didn't want to push it on a new motor.



< Message edited by CustomPC -- 4/28/2008 1:21:05 AM >
       Post #: 1

RE: Webra .50 Speed - 5/22/2008 8:55:39 PM   
Ernie Misner


 

Posts: 3160
Joined: 7/5/2002
From: Tacoma, WA, USA
Status: offline 		What a nice engine. I am jealous. Very lightweight too.

Do you folks run zero nitro down there?

Thanks,

Ernie

(in reply to CustomPC)
       Post #: 2

RE: Webra .50 Speed - 5/23/2008 1:16:37 AM   
CustomPC


 

Posts: 349
Joined: 4/19/2004
From: SydneyNSW, AUSTRALIA
Status: offline 		The manual says to break in the engine with 0% Nitro and 20% Castor.

After the break-in you they suggest 16% synthetic and 2% castor and 5-10% Nitro.

We have some pylon classes that only allow 0% fuel and i'm also making an effort to start using less nitro on all my models to save running costs.

(in reply to Ernie Misner)
       Post #: 3

RE: Webra .50 Speed - 5/23/2008 2:41:24 AM   
RVman


 

Posts: 548
Joined: 6/2/2003
From: Guelph, ON,
Status: online 		I have identical numbers with my new 50. The stock torpedo looking muffler is very loud however.

_____________________________

Tom G.

(in reply to CustomPC)
       Post #: 4

RE: Webra .50 Speed - 5/23/2008 3:21:13 AM   
CustomPC


 

Posts: 349
Joined: 4/19/2004
From: SydneyNSW, AUSTRALIA
Status: offline 		What did you say????

(in reply to RVman)
       Post #: 5

RE: Webra .50 Speed - 5/23/2008 3:51:15 PM   
RVman


 

Posts: 548
Joined: 6/2/2003
From: Guelph, ON,
Status: online 		huh?! I'm going to build a moussecan type pipe for it.

_____________________________

Tom G.

(in reply to CustomPC)
       Post #: 6

RE: Webra .50 Speed - 5/26/2008 12:42:14 AM   
CustomPC


 

Posts: 349
Joined: 4/19/2004
From: SydneyNSW, AUSTRALIA
Status: offline 		I bought an Ultrathrust for mine but haven't got around to trying it yet.

(in reply to RVman)
       Post #: 7

RE: Webra .50 Speed - 8/15/2008 5:32:54 AM   
Kmot



Posts: 7743
Joined: 6/11/2003
From: Northridge, CA, USA
Status: offline 		16000 on a Top Flite Power Point 10x6 during this break-in on Powermaster 15% nitro fuel.


http://media.putfile.com/Webra-50-Break-in-Runnung

Edited to correct propeller brand name.

< Message edited by Kmot -- 8/16/2008 9:44:01 PM >

_____________________________

DRILL BABY DRILL!!!

(in reply to CustomPC)
       Post #: 8

RE: Webra .50 Speed - 9/11/2008 4:59:01 AM   
DarZeelon



Posts: 7110
Joined: 4/9/2003
From: Rosh-Ha'Ayin, ISRAEL
Status: offline 		Tom,


It seems you ran this Webra way too rich...

It only needs ~500 RPM below the absolute peak to keep it a bit cooler, but during your runs it was mostly four-cycling and much slower...


I saw such an engine exactly, peel its sleeve while being run like that (or even somewhat richer).

...The only non-OS I have ever seen peel its nickel...


Letting an AB(X) engine run too cool during break-in, is akin to letting a heroin junky get his fix... It will never do the engine any good...




_____________________________

Dar Zeelon - ISRAEL - ddzeelon@gmail.com
MVVS - Jett - Nelson - Bolly - Mejzlik

(in reply to Kmot)
       Post #: 9

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All Forums >> Glow Engines, Gas Engines, Fuel & Mfg Support Forums >> Tachometer Readings >> Webra .50 Speed
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