Exhaust for Avro

[sooren]

As I am struggling to find a second hand avro for sale it looks like I will have to go the new route.
So far got an GP750 gyro and a DS650 tail servo (from little acorns)
I am now going to get the engine an exhaust sorted, am going with the OS91 as it is serving my Srimok well but am stuck on what exhaust to get, I understand that some exhausts are too close to the fuel tank and can melt them.
What are current Avro fliers using - I would also consider second hand items but if not I will go the new route.
Regards
Paul

[Bigbellypopper]

Hi Paul

I have a Hatori SB19 on my Avro. Mine has ample clearance with the exhaust. The SB19 which is a US part number equates to the 946 (for the YS SR motor) The equivilant pipe for the OS91 is the 939. Both of these pipes have a 30mm header depth, as opposed to the 994/995 mufflers which have 20mm headers, and the 937/938 mufflers which have 24mm headers. If you don't go the Hatori route, go for something with at least a 28mm header depth

Have a look [URL="http://www.hatori-models.co.jp/"]here[/URL]

[KnifeEdge]

I had an OS .91 hz with an sb20 worked fine. Now have a ys.91sr with a sb19

[Stuart]

have you looked at the new GP exhausts from Midlands, they look quite impressive.

[pgrbff]

I have a Funtech A381 on a YS, with an 8mm spacer.

[sooren]

I took the plunge and bought the Outrage - fingers crossed.
Regards
Paul

[antsis]

[QUOTE=Bigbellypopper;359822]Hi Paul

I have a Hatori SB19 on my Avro. Mine has ample clearance with the exhaust. The SB19 which is a US part number equates to the 946 (for the YS SR motor) The equivilant pipe for the OS91 is the 939. Both of these pipes have a 30mm header depth, as opposed to the 994/995 mufflers which have 20mm headers, and the 937/938 mufflers which have 24mm headers. If you don't go the Hatori route, go for something with at least a 28mm header depth

Have a look [URL="http://www.hatori-models.co.jp/"]here[/URL][/QUOTE]

Followed the link and see only 4 options for the F3C pipe. I'm guessing the one I need to go for is the 962 which has 30mm clearance. I'm fitting an OS91SZ-H. Can anyone confirm the crankcase is the same as the HZ? The pipe is over AU$200.00 and I don't want to get it if it doesn't fit.

[Steve]

Don't worry too much about the header clearance. I have the Hatori F3C pipe withe the reduce header on one of my Xcells and it used to be on a 700. All you need is the K&S 8mm adapter like this [URL="http://www.modelhelicopters.co.uk/muffler-adaptor-8mm-os60-90-ys80.html"]MUFFLER ADAPTOR 8MM (OS60/90/YS80) | Midland Helicopters Ltd
[/URL]
It fits YS and OS 91s. I have 2 of these extensions in use on different Xcells with different pipes.

[pgrbff]

If you're interested inthe Funtech A381 with several spacers I am selling off my airframe and spares and would not be looking for big money.

[antsis]

[QUOTE=pgrbff;844383]If you're interested inthe Funtech A381 with several spacers I am selling off my airframe and spares and would not be looking for big money.[/QUOTE]

PM sent.