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HelicopterAerobatic FAI F3C F3N Contest › Picking an exhaust
09-15-2007 05:54 PM  10 years agoPost 1
RCHelicopterGuy

rrVeteran

Michigan

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I could use some help about picking an exhaust and what performance characteristics to look for. I see people like Len and Scott using Zimmerman pipes, I've heard of people using Hatori 994's and 995's (Gordie, do you still use a 994/995?), and I've also seen people use K&S and Fun-Tech pipes.

The problem I'm having is this: What makes different exhausts more suited for F3C use? For example, what makes a Hatori 995 a better choice for F3C than a Hatori SB-17? Not much is avialable on Hatori's Japanese website, and Rich Sabin doesn't have a Hatori US site with any good explanations either. If you want a Hatori, there's about 23 dozen models to choose from, and it's almost like you're left guessing which one you should use.

I only know of one guy in the U.S. flying Zimmerman's, and that's Len. I once bought a Zimmerman for an older 60 and LOVED the workmanship on it, but ended up selling the whole machine before I ever got to use the pipe.

Soooo... I could use some recommendations for a pipe to go with my non-pumped C-Spec. The exhaust I'm currently using is a tinny-sounding, obnoxiously loud coffee can which makes me feel like I'm chasing needle setings all the time, while being aurally assaulted by a sound similar to a handful of bolts in my wife's blender, set to Liquefy.

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09-16-2007 05:28 PM  10 years agoPost 2
Dr.Ben

rrMaster

Richmond, VA, USA

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Scott would have to give the details for his Zimmerman set up, but I can tell you for a fact that the FunTec FAI muffler with the gold clamp/mount provides excellent power on a C-Spec and will nearly bring tears to your eyes it sounds so nice in hover.

If you PM Quickster here on RR, he had one for sale shipped for a good price.

Ben Minor

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09-17-2007 07:27 AM  10 years agoPost 3
Henrik Engert

rrKey Veteran

Cedar Park, TX

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I have a FunTech FAI muffler with the gold clamp/mount for my YS. It has the nicest sound The Hatori 995 will give more power from what I have seen (I think the Hatori 995 is for the YS), but the noice is not as nice as the Funtech (HN-90 Type-F R2 (YS) A381).

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HelicopterAerobatic FAI F3C F3N Contest › Picking an exhaust
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