REFLECTOR: Vortex generators location for armpit cooling scoops

[John Dibble]

Andy,

It could be detonation.  You could try reducing the timing advance by a 
few degrees and see it this has any effect.

John

On 8/14/2013 10:15 PM, Andrew Ellzey wrote:
> Scott
> I haven't done any air flow testing yet. On a Lycoming the #5 & 6 are 
> aft most cylinders on the engine, which is forward most cylinders on 
> our Velocities. Cylinders 1 & 3 are the forward most for the engine, 
> which is the aft most or closest to the prop. I have been leaning some 
> at altitudes above 3500 feet,  just to keep from burning 20 gal per 
> hour. But I haven't tried any LOP operation. At 6,000 feet, running 
> 24/24 I have been able to barely keep #5 under 450 degrees, my preset 
> redline on my EFIS display, and fuel flow of 16 gal per hour. # 6 at 
> these settings will be running about 400 to 425 degrees. All other 
> cylinders are under 400 degrees, more in the ranges of 375 to 385 degrees.
> I will try some LOP operation the next time I get a chance to fly.
> Andy
>

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://www.tvbf.org/mailman/private/reflector/attachments/20130815/cc4b9add/attachment.html>