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Forum: 3D Flying!

06-25-2006, 05:46 PM

Replies: 23

Tune pipes

Views: 2,397

Posted By rmh

RE: Tune pipes

No worthwhile info I know of is available .
basically --rpm on these tiny engines is in the 10000 rpm---- minimum -------range . we once did OS61 engines for pattern and the pipe setups were ...

Forum: 3D Flying!

06-09-2006, 11:34 PM

Replies: 23

Tune pipes

Views: 2,397

Posted By rmh

RE: Tune pipes

A properly designed muffler which is not tuned is also a very good choice -- the model of JMB I like is that type can - run on a very short header - the powerband is seamless from idle to ...

Forum: 3D Flying!

04-07-2006, 10:00 AM

Replies: 23

Tune pipes

Views: 2,397

Posted By rmh

RE: Tune pipes

Ed is going to run those tests -likely this weekend.

On my EFYAK -I placed all servos forward -which allows bateries -to be placeaft as desired I got mine in at 15.25 lbs easily with this...

Forum: 3D Flying!

04-05-2006, 09:03 AM

Replies: 23

Tune pipes

Views: 2,397

Posted By rmh

RE: Tune pipes

The AMT pipe on the ZDZ80 single is a wild combo - mine turns over 7000 on 26x10 mejzlic.
This pipe is good on the single 80 - with rpms setup to be in higher 6000range and low 7000 range...

Forum: 3D Flying!

04-03-2006, 08:54 AM

Replies: 23

Tune pipes

Views: 2,397

Posted By rmh

RE: Tune pipes

also different carbs reacte differently when a pipe is used --and different size props change the entire picture .
On my ZDZ50 n full AMT pipe - it works bet with engine stating at over ...

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