ORIGINAL: choihjin

Dear MATT
I did not expect power boosted, it is a caniser for noisy reduction without affecting power.
In my case, it just happened probably due to rich fuel setting etc. Just after mounting the engine power plant in late evening, we could not adjust the engine needles because of no holes in the cowl, did not have enough time to make hole to access to the needles.
My friend who has another OS GT33 ordered a ES 40G tuned pipe from your thread. I got these Hatori from one of my friend who is building this Smaragd for me, a heli propessionalist for argricutural use. The performance between ES 40G and Hatori will be compared but I am not sure when. It will take one or two months.
All answer is here:
http://www.hatori-models.co.jp/HP3/k...301.2551e.html
http://www.hatori-models.co.jp/HP3/k...air/2300e.html
Regards