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One_eye · 03-08-2015, 11:22 PM

Hi Guys,

Midlands Helicopter is currently selling the GP exhaust from Germany at 50% off, I am wondering if any of you have experience with them?

http://www.modelhelicopters.co.uk/gpexhaust

http://www.modelhelicopters.co.uk/en...-exhausts.html

One_eye · 03-26-2015, 08:14 PM

Ok, since there is no one with any experience with the GP Exhaust (can't seems to find much posts online as well) I went ahead and order the Energy 91 for my YS91SRX and installed on my new Syergy N7. During breaking in, I found the engine seems to make more power as compared to my Gaui nx7 with the same engine but running on an Hatori SB23. Not sure if it is due to the heli, I will get the engine to break in and update.

My flying buddy also comment that he like the sound of the GP exhaust Energy 91 more than my Hatori.

the build and finished of the exhaust is very good, at only 1/3 of a Hatori, I just go ahead and order the another version of the GP Exhaust - Nitropower 977 for YS91 to try it out.

geomecc · 03-29-2015, 12:51 PM

I have used these pipes. I have a brand new one but can't use it because it doesn't fit on my rave. I liked it on my fury with os90. the only problem I had was the stud on the adapter broke and the pipe fell off in flight. just keep an eye on it

One_eye · 03-29-2015, 08:27 PM

What adapter are you referring to? The GP exhaust is one piece designed and for the YS engine, it bolt directly to the crankcase.

03-08-2015, 11:22 PM	#1 (permalink)
One_eye Registered Users Join Date: Sep 2011	GP Exhaust from Germany, any good? Hi Guys, Midlands Helicopter is currently selling the GP exhaust from Germany at 50% off, I am wondering if any of you have experience with them? http://www.modelhelicopters.co.uk/gpexhaust http://www.modelhelicopters.co.uk/en...-exhausts.html

03-29-2015, 12:51 PM	#3 (permalink)
geomecc Registered Users Join Date: May 2009	I have used these pipes. I have a brand new one but can't use it because it doesn't fit on my rave. I liked it on my fury with os90. the only problem I had was the stud on the adapter broke and the pipe fell off in flight. just keep an eye on it __________________ SRW, EFC,RCRCC AMA 930196 IRCHA 3540 Skookum support pilot

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03-26-2015, 08:14 PM	#2 (permalink)
One_eye Registered Users Thread Starter Join Date: Sep 2011	Ok, since there is no one with any experience with the GP Exhaust (can't seems to find much posts online as well) I went ahead and order the Energy 91 for my YS91SRX and installed on my new Syergy N7. During breaking in, I found the engine seems to make more power as compared to my Gaui nx7 with the same engine but running on an Hatori SB23. Not sure if it is due to the heli, I will get the engine to break in and update. My flying buddy also comment that he like the sound of the GP exhaust Energy 91 more than my Hatori. the build and finished of the exhaust is very good, at only 1/3 of a Hatori, I just go ahead and order the another version of the GP Exhaust - Nitropower 977 for YS91 to try it out.

03-29-2015, 08:27 PM	#4 (permalink)
One_eye Registered Users Thread Starter Join Date: Sep 2011	What adapter are you referring to? The GP exhaust is one piece designed and for the YS engine, it bolt directly to the crankcase.

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