R/C Tech Forums

Go Back   R/C Tech Forums > General Forums > Nitro On-Road > Onroad Nitro Engine Zone

Reply
 
Thread Tools Search this Thread
Old 10-01-2009, 10:58 AM   #1
Tech Elite
 
J.Gonzalez's Avatar
 
Join Date: Nov 2002
Location: connecticut
Posts: 2,409
Trader Rating: 16 (100%+)
Default How to quiet engine down during break in?

Well as much as I enjoy the sound of nitro engines...

It is down right [email protected]#!% annoying running a motor at wot for long period of time to run thru 1/2 gallon of fuel!

Is their a simple way to baffle the engine exhaust without causing any type of issue with back pressure.

Pics of any suggestion or device would be great.
J.Gonzalez is offline   Reply With Quote
Old 10-01-2009, 11:22 AM   #2
Tech Champion
 
Roelof's Avatar
 
Join Date: Aug 2007
Location: Holland
Posts: 6,292
Send a message via ICQ to Roelof
Default

Place a rubber tube on the stinger of the exhaust, in most rc shops you can find these tubes as an extension for the stinger.
__________________
The quality of an answer comes with the quality of the question.
Roelof is online now   Reply With Quote
Old 10-01-2009, 12:11 PM   #3
Tech Addict
 
Join Date: Feb 2007
Posts: 511
Trader Rating: 1 (100%+)
Default

run a helicopter pipe
randay is offline   Reply With Quote
Old 10-02-2009, 10:11 AM   #4
Tech Elite
 
Riketsu's Avatar
 
Join Date: Aug 2004
Location: Puerto Rico
Posts: 2,514
Trader Rating: 32 (100%+)
Send a message via AIM to Riketsu
Default

I use a Plastic Coke bottle (preferably the big one), make a small hole at the middle of it so the stinger can be inserted into the bottle. Just open the bottle cap so the fumes can get out.
__________________
eBay user id: riketsukirai
Riketsu is offline   Reply With Quote
Old 10-02-2009, 05:17 PM   #5
Tech Master
 
helivaguy's Avatar
 
Join Date: Jul 2008
Location: NYC
Posts: 1,220
Trader Rating: 42 (100%+)
Default

i use a 5ft piece of automotive rubber hose from my stinger out the door of my shop into a bucket(to catch the oil),no noise,no crying eyes,no smoke
__________________
The only thing that is "still like new" is the box it came in..
Only a half gallon through it my Ass!
helivaguy is offline   Reply With Quote
Old 10-02-2009, 07:05 PM   #6
Tech Elite
 
lil-bump's Avatar
 
Join Date: Aug 2006
Location: The Cold Great Lakes
Posts: 2,964
Trader Rating: 83 (100%+)
Default

Quote:
Originally Posted by senna555 View Post
Well as much as I enjoy the sound of nitro engines...

It is down right [email protected]#!% annoying running a motor at wot for long period of time to run thru 1/2 gallon of fuel!

Is their a simple way to baffle the engine exhaust without causing any type of issue with back pressure.

Pics of any suggestion or device would be great.
WEAR EAR PLUGS!!!!!!!!!!!
__________________
Elliott Hart
Serpent America
Desoto Racing Team
Chicky fan club member #9
One Eighth Racers of Toledo
lil-bump is offline   Reply With Quote
Old 10-08-2009, 04:05 AM   #7
Tech Fanatic
 
bigredspeed's Avatar
 
Join Date: Jul 2007
Location: sydney
Posts: 802
Trader Rating: 2 (100%+)
Default

Quote:
Originally Posted by lil-bump View Post
WEAR EAR PLUGS!!!!!!!!!!!
hahahahha good one
__________________
Tornado Racing Fuel and Product
Sanwa
XRAY RX8,ZAC OS SPEED XZR
XRAY X12,Muchmoore Fleta
Hudy, HEI international
bigredspeed is offline   Reply With Quote
Old 10-08-2009, 10:11 AM   #8
Tech Master
 
cdelong's Avatar
 
Join Date: Jul 2004
Location: The Sunshine State
Posts: 1,805
Trader Rating: 12 (100%+)
Default

ear plugs r the best method. rubber hoses were not meant to be attached to stingers. it creates way too much backpressure for these engines to handle.

if youre looking to hydraulically lock your new $500- $600 engine go for the rubber hose instead of ear plugs......

if you're running it in on the car slap on an INS box along with ear plugs
__________________
KYOSHO EVOLVA
35PLUS21
FUTABA 3PKS/KO PROPO
BYRON'S FUEL/TWISTER TIRES
cdelong is offline   Reply With Quote
Old 10-08-2009, 11:43 AM   #9
Tech Master
 
Join Date: Jan 2008
Location: Moreno Valley, Ca.
Posts: 1,937
Trader Rating: 3 (100%+)
Send a message via Yahoo to motojon
Default

Quote:
Originally Posted by Riketsu View Post
I use a Plastic Coke bottle (preferably the big one), make a small hole at the middle of it so the stinger can be inserted into the bottle. Just open the bottle cap so the fumes can get out.
It really doesnt help that much, and at 1/2 throttle and WOT it starts to deform
__________________
My Gpa(RIP)
motojon is offline   Reply With Quote
Old 10-10-2009, 05:39 PM   #10
Tech Master
 
helivaguy's Avatar
 
Join Date: Jul 2008
Location: NYC
Posts: 1,220
Trader Rating: 42 (100%+)
Default

never had an issue using a automotive heater hose,im 45 and been doing it this way since 1986 even on my heli's and planes.
if you are hydrolocking then you are setting/breaking in your engines incorrectly.
__________________
The only thing that is "still like new" is the box it came in..
Only a half gallon through it my Ass!
helivaguy is offline   Reply With Quote
Old 10-12-2009, 03:49 PM   #11
Tech Initiate
 
Join Date: Mar 2008
Posts: 33
Default

I just broke in my OS .12 on my stand with the stinger going into a one foot square cardboard box. It still made a bit of noise but not nearly as much as nothing. If you were to stick some fiberglass insulation in the box it will quiet it even more.
problemchild is offline   Reply With Quote
Reply



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are Off



All times are GMT -7. It is currently 02:22 PM.


We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
Powered By: vBulletin v3.9.2.1
Privacy Policy | Terms of Use | Advertise Content © 2001-2011 RCTech.net