REFLECTOR: Breather tube

Scott Derrick scott at tnstaafl.net
Fri Mar 2 12:56:15 CST 2012


We've talked about that before here.

I would like to do it for two reasons:

1.) eliminate the oil streak on my cowl, its a PITA and gets on the prop 
as well. Plumbing it into the exhaust woudl partialy burn it also.

2.) possibly induce a further lowering of crankcase pressure and thus 
raising the HP, though maybe thats imperceptible!

Scott


-------- Original Message --------
Subject: Re: REFLECTOR: Breather tube
From: John Dibble <aminetech at bluefrog.com>
To: Velocity Aircraft Owners and Builders list <reflector at tvbf.org>
Date: 03/02/2012 11:40 AM

> Hmmm. What about plumbing the vent into the intake?
>
> John
>
> On 3/2/2012 12:10 PM, Jones Nick wrote:
>>
>> The ideal situation is to create a vacuum in the crankcase. This helps
>> prevent leaks, increases horsepower (and efficiency) although
>> slightly. Back when I raced cars, I would weld in a fitting at the
>> exhaust collector cut at a 45 degree angle to use the exhaust to pull
>> a vacuum on the crankcase trying to get every ounce of power from the
>> engine.
>>
>>
>
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