Cox Engines Forum
You are not logged in! Please login or register.

Logged in members see NO ADVERTISEMENTS!


Drilling the Venturi on Stunt Tanks Cox_ba12





Log in

I forgot my password

Search
 
 

Display results as :
 


Rechercher Advanced Search

Cox Engine of The Month
September-2022
fredvon4's

Hot Tee Dee .049 featuring a Turbo Head and exhaust collector



PAST WINNERS
CEF Traveling Engine

Win This Engine!
Gallery


Drilling the Venturi on Stunt Tanks Empty

Drilling the Venturi on Stunt Tanks

Go down

Drilling the Venturi on Stunt Tanks Empty Drilling the Venturi on Stunt Tanks

Post  AJP1604 Wed May 30, 2012 3:37 pm

I hope someone can answer my question.

I have read that the venturi diameter on a Venom engine is larger than a Baby Bee/Golden Bee.I have a GB stunt tank that I want to convert to use on a Venom clone I am building.
My question is do I drill the Back Plate and Tank out to a larger size or just the Back Plate?
Also,is the correct diameter to drill .082?? confused

Thanks for your response in advance.
AJP1604
Anonymous
AJP1604
Guest


Back to top Go down

Drilling the Venturi on Stunt Tanks Empty Re: Drilling the Venturi on Stunt Tanks

Post  Kim Wed May 30, 2012 3:56 pm

Hey,

.082 is correct (to my knowledge) for the drill size. When I built up my 'Bad Boy' engine, using one of Bernie's Taxaco tanks, mounted to a standard Babe Bee backplate, I drilled the backplate and tube as a unit, and then flushed everything thoroughly.

Drilling the Venturi on Stunt Tanks 1_124

Strangely enough, I have yet to stick a tach on it, but it does run and runs fast.

Drilling the Venturi on Stunt Tanks 2_82

I'm sure that the serious engine guys will be checking in shortly. You might also consult Paul's Mouse Racing article in which is posted as a sticky under "Cox Discussions"

Good luck with your project.
Kim
Kim
Top Poster
Top Poster

2020 Supporter

2021 Supporter

2022 Supporter

Posts : 8059
Join date : 2011-09-06
Location : South East Missouri

Back to top Go down

Drilling the Venturi on Stunt Tanks Empty Re: Drilling the Venturi on Stunt Tanks

Post  RknRusty Wed May 30, 2012 5:45 pm

Yes, .082" is the right size. Since I don't have a bit that size, I finger-twist a 5/64 bit (.078") and make it fit loosely. I only have BW tanks and they're already the right size. I don't know about the others.

Of equal importance is the width of the opening behind the reed. I don't know if they vary on the non-BW stunt tanks, but they are smaller on the Babe Bee tanks. I guess you would need a conical shaped ream to change that since the Bee tank venturis are tapered all the way back to the inlet.

_________________
Don't Panic!
...and never Ever think about how good you are at something...
while you're doing it!


My Hot Rock & Blues Playlist
RknRusty
RknRusty
Rest In Peace
Rest In Peace

2020 Supporter

Posts : 10869
Join date : 2011-08-10
Age : 66
Location : South Carolina, USA

Back to top Go down

Drilling the Venturi on Stunt Tanks Empty Re: Drilling the Venturi on Stunt Tanks

Post  Sponsored content


Sponsored content


Back to top Go down

Back to top

- Similar topics

 
Permissions in this forum:
You cannot reply to topics in this forum