R/C Tech Forums

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

Reply
 
Thread Tools Search this Thread
Old 06-25-2010, 09:47 AM   #16
Tech Elite
 
JLock's Avatar
 
Join Date: Nov 2001
Location: North Dallas, TX
Posts: 4,455
Trader Rating: 3 (100%+)
Default

I am a little skeptical here. How does putting this on your carb reduce the level of exhaust noise coming out of the pipe? I have been to races where the INS box is used on 1/8th scale onroad cars and really haven't heard any difference in the level of noise as compared to a car without an INS box. Yes, you will probably need a decibel meter to actually gauge, but don't you think that if you want to reduce the level of noise, you want to do something on the exhaust side of the ledger over the air intake side. That is usually the way you do it on full-size cars.
__________________
Texas 5
It's not what you know; it's what you can prove.
The only thing that is for sure is that nothing is for sure!!!
The needs of the many outweigh the needs of the few, or the one.
There are 2 things in life that are infinite: the universe and stupidity.
JLock is offline   Reply With Quote
Old 06-25-2010, 10:08 AM   #17
Tech Champion
 
Team Kamikaze's Avatar
R/C Tech Elite Subscriber
 
Join Date: Apr 2006
Location: 我的名字是沈先生。我是中国人, 居住美国
Posts: 8,868
Trader Rating: 3 (100%+)
Default

Quote:
Originally Posted by JLock View Post
I am a little skeptical here. How does putting this on your carb reduce the level of exhaust noise coming out of the pipe? I have been to races where the INS box is used on 1/8th scale onroad cars and really haven't heard any difference in the level of noise as compared to a car without an INS box. Yes, you will probably need a decibel meter to actually gauge, but don't you think that if you want to reduce the level of noise, you want to do something on the exhaust side of the ledger over the air intake side. That is usually the way you do it on full-size cars.
INS box does not reduce the exhaust noise, it reduces the the Intake noise, INS means" Induction Noise Suppresor" Induction noise is loud, and yes if you pay attention you will be able to tell the sound difference from a car with an INS box and a car without an INS box.
__________________
Home of the Kamikaze Driver's Development Program = guaranteed podium finish
Kamikaze Toys and Hobbies Inc.
Follow us here on Facebook!
Team Kamikaze is offline   Reply With Quote
Old 06-25-2010, 10:14 AM   #18
Tech Champion
 
nitrodude's Avatar
 
Join Date: Aug 2002
Location: Oxnard, CA
Posts: 5,843
Trader Rating: 5 (100%+)
Default

Sam beat me to it!

Also, noice reduction is the reason why we have 3 chamber pipes.
__________________
Steven Muller
AKA El Pibe RUFAST? HAHA!!!
Ronin Speed Parts
nitrodude is offline   Reply With Quote
Old 06-25-2010, 10:36 AM   #19
Tech Elite
 
MAD916's Avatar
 
Join Date: Oct 2005
Location: La Center Seca
Posts: 3,117
Default

They reduce it by approx 3db, and it is a difference, we are about to make them mandatory at our track, they take that sharp edge off the overal noise.

The intake noise of a two stoke engine makes up a significant amount of the overall sound
__________________
Timezone Raceway Park " on-road outdoor european style road course.
Timezone II 60'x100' indoor carpet track. Host of the ROAR 2011 Carpet Nat's.
Timezonehobbies.com your new source for online RC products.
MAD916 is offline   Reply With Quote
Old 06-25-2010, 11:10 AM   #20
Tech Lord
 
wingracer's Avatar
 
Join Date: Nov 2007
Posts: 12,861
Trader Rating: 24 (100%+)
Default

I've seen INS boxes get knocked off in a crash and the car gets noticeably louder. It does make a difference. No it isn't much but it is something.

I remember when I first started experimenting with 3 chamber pipes and INS boxes. I hated it because if there were just three or four other cars on the track not using them, I couldn't hear my car AT ALL over them.
__________________
Sean. Certified speed crazed mowron.
Team Shepherd USA
www.ashfordhobby.com
wingracer is offline   Reply With Quote
Old 06-25-2010, 11:15 AM   #21
Tech Elite
 
JLock's Avatar
 
Join Date: Nov 2001
Location: North Dallas, TX
Posts: 4,455
Trader Rating: 3 (100%+)
Default

Thank you to the posters that took the time to explain it to me and not bash me in the head for my post. So, if the engine manufacturers would develop 4-stroke engines that produce the power of the 2-stroke engines that we are currently using, then we would not really need an INS box (based on what you guys mentioned)??
__________________
Texas 5
It's not what you know; it's what you can prove.
The only thing that is for sure is that nothing is for sure!!!
The needs of the many outweigh the needs of the few, or the one.
There are 2 things in life that are infinite: the universe and stupidity.
JLock is offline   Reply With Quote
Old 06-25-2010, 11:21 AM   #22
Tech Champion
 
nitrodude's Avatar
 
Join Date: Aug 2002
Location: Oxnard, CA
Posts: 5,843
Trader Rating: 5 (100%+)
Default

Quote:
Originally Posted by JLock View Post
Thank you to the posters that took the time to explain it to me and not bash me in the head for my post. So, if the engine manufacturers would develop 4-stroke engines that produce the power of the 2-stroke engines that we are currently using, then we would not really need an INS box (based on what you guys mentioned)??
OOPS! I was thinking of something else!
__________________
Steven Muller
AKA El Pibe RUFAST? HAHA!!!
Ronin Speed Parts
nitrodude is offline   Reply With Quote
Old 06-25-2010, 11:28 AM   #23
Tech Lord
 
wingracer's Avatar
 
Join Date: Nov 2007
Posts: 12,861
Trader Rating: 24 (100%+)
Default

Quote:
Originally Posted by JLock View Post
Thank you to the posters that took the time to explain it to me and not bash me in the head for my post. So, if the engine manufacturers would develop 4-stroke engines that produce the power of the 2-stroke engines that we are currently using, then we would not really need an INS box (based on what you guys mentioned)??
Every internal combustion engine makes a lot of intake noise. For example, find an old carburated car (real, full sized car like a pick-up with a four barrel or something), crank it up and rev it up real good. Then take the air cleaner and housing off of it and try again. It will make a lot more noise without it.
__________________
Sean. Certified speed crazed mowron.
Team Shepherd USA
www.ashfordhobby.com
wingracer is offline   Reply With Quote
Old 06-25-2010, 05:01 PM   #24
Tech Master
 
helivaguy's Avatar
 
Join Date: Jul 2008
Location: NYC
Posts: 1,220
Trader Rating: 42 (100%+)
Default

somehow, someway,someone always find a way to get there hands in our pockets.
who care about the dam noise?? its nitro for petes sake love it or go electric
sorry just venting
helivaguy is offline   Reply With Quote
Old 06-25-2010, 05:03 PM   #25
Tech Master
 
JetMD's Avatar
 
Join Date: Jan 2006
Location: Richmond VA
Posts: 1,172
Trader Rating: 1 (100%+)
Default

Here's another example of intake noise. I put a K&N intake system on my wife's (full size) car and the intake is now open and sucking air from the front of the grill. It's incredibly louder. It sounds like a giant air-pump sucking all the air out of the garage. Since the exhaust is stock, you can't hear the exhaust at all, only the intake noise.
__________________
www.vorra.org

MINO Racing
JetMD is offline   Reply With Quote
Old 06-25-2010, 05:24 PM   #26
Tech Champion
 
nitrodude's Avatar
 
Join Date: Aug 2002
Location: Oxnard, CA
Posts: 5,843
Trader Rating: 5 (100%+)
Default

Quote:
Originally Posted by helivaguy View Post
somehow, someway,someone always find a way to get there hands in our pockets.
who care about the dam noise?? its nitro for petes sake love it or go electric
sorry just venting
Thats the kind of attitude that will doom nitro racing. As the population increases we find that nitro tracks need to be built closer to houses or houses are being built closer to the tracks, in order to be allowed to run our nitro cars we need to lower the noice, which is one of the major complaints.
__________________
Steven Muller
AKA El Pibe RUFAST? HAHA!!!
Ronin Speed Parts
nitrodude is offline   Reply With Quote
Old 06-26-2010, 04:16 AM   #27
Tech Fanatic
 
Join Date: Feb 2007
Posts: 925
Trader Rating: 6 (100%+)
Default

im looking to get a INS box.. either xceed or RB.

not for the fact it reduces noise, but the fact that our track is dusty..

RB or Xceed?

can you run the RB INS box with the novarossi airfilters? because the RB filter that comes with it looks the same, but its positioned more towards the outside (away from the head).. while the novarossi filter is positioned in the middle
__________________
TEAM DURANGO CARBON DEX210 - POWERED BY TEKIN RS GEN2/TEKIN GEN2 17.5
TEAM DURANGO CARBON DEX410 - POWERED BY TEKIN RS PRO/REEDY SONIC 17.5
TEAM ASSOCIATED B5 - POWERED BY TEKIN RS GEN2/TEKIN GEN2 17.5
LiL_JaSoN is offline   Reply With Quote
Old 06-26-2010, 07:36 AM   #28
Tech Addict
 
mugenize1's Avatar
 
Join Date: Jul 2009
Posts: 529
Default

Quote:
Originally Posted by helivaguy View Post
somehow, someway,someone always find a way to get there hands in our pockets.
who care about the dam noise?? its nitro for petes sake love it or go electric
sorry just venting
+10 to that, Live on Nitro
mugenize1 is offline   Reply With Quote
Old 06-26-2010, 07:42 AM   #29
Tech Addict
 
mugenize1's Avatar
 
Join Date: Jul 2009
Posts: 529
Default

Quote:
Originally Posted by LiL_JaSoN View Post
im looking to get a INS box.. either xceed or RB.

not for the fact it reduces noise, but the fact that our track is dusty..

RB or Xceed?

can you run the RB INS box with the novarossi airfilters? because the RB filter that comes with it looks the same, but its positioned more towards the outside (away from the head).. while the novarossi filter is positioned in the middle
I have 3 the Xceed, novarossi and the mugen kind. I only run the mugen and the novarossi the Xceed I gave away to my boy did not like it after I ran it, (not that great on the air) flow.
mugenize1 is offline   Reply With Quote
Old 06-26-2010, 07:54 AM   #30
Tech Fanatic
 
Join Date: Feb 2007
Posts: 925
Trader Rating: 6 (100%+)
Default

Quote:
Originally Posted by mugenize1 View Post
I have 3 the Xceed, novarossi and the mugen kind. I only run the mugen and the novarossi the Xceed I gave away to my boy did not like it after I ran it, (not that great on the air) flow.
can you run these - http://www.rc-mushroom.com/product_i...ducts_id=14808

or do u have to run these - http://www.rc-mushroom.com/product_i...ducts_id=20363

see how the filter is not in the centre
__________________
TEAM DURANGO CARBON DEX210 - POWERED BY TEKIN RS GEN2/TEKIN GEN2 17.5
TEAM DURANGO CARBON DEX410 - POWERED BY TEKIN RS PRO/REEDY SONIC 17.5
TEAM ASSOCIATED B5 - POWERED BY TEKIN RS GEN2/TEKIN GEN2 17.5
LiL_JaSoN is offline   Reply With Quote
Reply

Similar Threads
Thread Thread Starter Forum Replies Last Post
INS Box Filters?? c1 racin Nitro On-Road 22 01-26-2010 09:13 PM
INS-BOX nazwenhome Onroad Nitro Engine Zone 8 10-11-2009 07:57 PM
INS Box shiston Onroad Nitro Engine Zone 18 01-25-2009 04:38 AM
INS box?? wario69 Nitro On-Road 20 03-30-2007 06:46 PM



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 12:55 AM.


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