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After Market 3piece Roto-throttle Information
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Marleysky- Top Poster
Posts : 3618
Join date : 2014-09-28
Age : 71
Location : Grand Rapids, MI
Re: After Market 3piece Roto-throttle Information
Thank you for posting I wondered who actually made the throttle I have 3 of them on .15 size engines.



1/2A Nut- Top Poster
Posts : 3346
Join date : 2013-10-20
Age : 60
Location : Brad in Texas
Re: After Market 3piece Roto-throttle Information
Marleysky wrote:Here’s a new project for those of you who have a Lathe!
Brad has one on his EOM picture, mine is for the 049 size.
Thank you very much for publishing these photos, they are very useful.
I am now working on an airplane model, but as soon as I have time, I will try to make one of these accelerator rings.
I was thinking about trying for a .010 from Cox


Thanks friend Marleysky

MauricioB- Top Poster
- Posts : 3458
Join date : 2016-02-16
Age : 52
Location : ARG
Re: After Market 3piece Roto-throttle Information
Thanks Rene , i have never seen one of these and didn't quite get it from Brads EOM picture . What is the date on packaging ?

getback- Top Poster
Posts : 9836
Join date : 2013-01-18
Age : 66
Location : julian , NC
Re: After Market 3piece Roto-throttle Information
getback wrote:Thanks Rene , i have never seen one of these and didn't quite get it from Brads EOM picture . What is the date on packaging ?![]()
There is no date on the paperwork. The address used does not have a zip code, so it was before 1963.
Marleysky- Top Poster
Posts : 3618
Join date : 2014-09-28
Age : 71
Location : Grand Rapids, MI
Re: After Market 3piece Roto-throttle Information
I assume Valve bodies 1 and 2 have smaller exhaust slits relative to the cylinder to effectively remove any SPI.... and that would make sense to me....wish we had more cottage guys to make these after market parts
fredvon4- Top Poster
Posts : 3997
Join date : 2011-08-26
Age : 68
Location : Lampasas Texas
dckrsn- Diamond Member
Posts : 2750
Join date : 2010-10-21
Age : 70
Location : Long Island, New York
Re: After Market 3piece Roto-throttle Information
A product of pre-zip code Detroit. The Paris of the West.
ticomareado- Account Under Review
- Posts : 1089
Join date : 2013-10-03
Location : NC
Surfer_kris- Diamond Member
- Posts : 1882
Join date : 2010-11-20
Location : Sweden
Re: After Market 3piece Roto-throttle Information
Very good work. Can be the Engine of the Month winner.

Levent Suberk- Diamond Member
- Posts : 2165
Join date : 2017-12-24
Location : Türkiye
Re: After Market 3piece Roto-throttle Information
Amen. Is this set up designed to be coupled to tuned pipe or an oil deflector tube? ? I'd like to see it installed on a Tee Dee or a Space Hopper.
ticomareado- Account Under Review
- Posts : 1089
Join date : 2013-10-03
Location : NC
Surfer_kris- Diamond Member
- Posts : 1882
Join date : 2010-11-20
Location : Sweden

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