Need information about Megaphone dimensions

[skivox]

Hello All,

Does anyone have information about megaphone dimensions ? For both cases : using stock camshaft OR more racing camshaft

I only found a video on YouTube showing a well-prepared gs500 (EGLI racing Frame) using much racing parts.
In the description of the video, the guy just tells he uses a custom megaphone without giving any else information....
The link : https://www.youtube.com/watch?v=11Mike0d-lk

Hope someone has interesting information about that

Thanks,
ToM

[The Buddha]

Megaphone - look on ebay, I found one for my bolt for $30. Its cheap and tacky and light and my fit is worse, but it sorta started the "rabid dog" look on my bolt.
Cool.
Buddha.

[skivox]

No.......

I am looking for the exact dimensions of a megaphone well adapted to stock or racing prepared engine. (different dimensions between these 2 cases of course !!!)
In order to be able to reproduced it from steal sheets.
To know that, only someone who already made some (or lot of...) comparison, on an engine test-bed, of different length, conicity, etc. can answer precisely to my question.

Hope someone has precise information
Thanks
ToM

[Jim Knopf]

Servus,

On Egli's bike are selfmade manifold pipes with Megaphone Race.

He used selfmade camshaft.

The modification on the Video with Flat slide carburator and without Balance statt and Alternator.

If you want to ride Stock with the Megaphone Race you need a new Setup on a Performace Test Bench.