R/C Tech Forums

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

Reply
 
Thread Tools Search this Thread
Old 11-10-2001, 10:46 PM   #46
dtm
Tech Champion
 
dtm's Avatar
 
Join Date: Aug 2001
Location: HKG
Posts: 7,551
Send a message via ICQ to dtm
Default

Yes.. it's difficult to explain without a piece of paper to draw on. At least the conclusion is the same!!
dtm is offline   Reply With Quote
Old 11-10-2001, 10:49 PM   #47
Tech Champion
 
Manticore's Avatar
R/C Tech Charter Subscriber
 
Join Date: Aug 2001
Location: Heaven
Posts: 9,999
Default

Quote:
Originally posted by dtm
Yes.. it's difficult to explain without a piece of paper to draw on. At least the conclusion is the same!!
sometime you also cannot explain something with a piece of paper. you also need to consider temperature of the engine. the fuel after going they the carb it will vapourize. the carb does the job of air/fuel mixing. !!
Manticore is offline   Reply With Quote
Old 11-10-2001, 10:53 PM   #48
dtm
Tech Champion
 
dtm's Avatar
 
Join Date: Aug 2001
Location: HKG
Posts: 7,551
Send a message via ICQ to dtm
Default

Lets agree to disagree on this one, for the moment! We may be talking on slightly different lines on this topic.... see if I can still remember when I next see you at PYC!
dtm is offline   Reply With Quote
Old 11-10-2001, 10:57 PM   #49
dtm
Tech Champion
 
dtm's Avatar
 
Join Date: Aug 2001
Location: HKG
Posts: 7,551
Send a message via ICQ to dtm
Default

Re-reading this thread I think we are actually talking about the same thing!!
dtm is offline   Reply With Quote
Old 11-10-2001, 11:00 PM   #50
Tech Regular
 
opel92's Avatar
 
Join Date: Oct 2001
Location: Brisbane, Australia
Posts: 257
Default

Quote:
Originally posted by Manticore


i have RB X12T, NR RS12T and RB 5 port. I have only run RB X12 at this time and it is fast. cant tell how RS12 and 5 port perform! may be i will tell you later on !
Got enough engines?????? You're just being greedy......
opel92 is offline   Reply With Quote
Old 11-11-2001, 02:43 AM   #51
Tech Champion
 
Manticore's Avatar
R/C Tech Charter Subscriber
 
Join Date: Aug 2001
Location: Heaven
Posts: 9,999
Default

Quote:
Originally posted by dtm
Lets agree to disagree on this one, for the moment! We may be talking on slightly different lines on this topic.... see if I can still remember when I next see you at PYC!
i would say that we cant come up with anything that we may conclude as we are not the expert in designing engines !!
Manticore is offline   Reply With Quote
Old 11-11-2001, 02:44 AM   #52
Tech Champion
 
Manticore's Avatar
R/C Tech Charter Subscriber
 
Join Date: Aug 2001
Location: Heaven
Posts: 9,999
Default

Quote:
Originally posted by dtm
Re-reading this thread I think we are actually talking about the same thing!!
what are you talking about ?
Manticore is offline   Reply With Quote
Old 11-11-2001, 02:45 AM   #53
Tech Champion
 
Manticore's Avatar
R/C Tech Charter Subscriber
 
Join Date: Aug 2001
Location: Heaven
Posts: 9,999
Default

Quote:
Originally posted by opel92


Got enough engines?????? You're just being greedy......
haha yeah, i am a greedy, dirty old man !!
Manticore is offline   Reply With Quote
Old 11-11-2001, 05:48 AM   #54
dtm
Tech Champion
 
dtm's Avatar
 
Join Date: Aug 2001
Location: HKG
Posts: 7,551
Send a message via ICQ to dtm
Default

Quote:
Originally posted by Manticore

i would say that we cant come up with anything that we may conclude as we are not the expert in designing engines !!
It still a lump of metal plus some fluid dynamics, thermodynamics and phyiscs.... I see nothing that I don't comprehend.

Last edited by dtm; 11-11-2001 at 06:03 AM.
dtm is offline   Reply With Quote
Old 11-11-2001, 06:02 AM   #55
dtm
Tech Champion
 
dtm's Avatar
 
Join Date: Aug 2001
Location: HKG
Posts: 7,551
Send a message via ICQ to dtm
Default

Quote:
Originally posted by Manticore


what are you talking about ?
You refer to better 'fuel throw' it is actually 'fuel/air mixture' throw ie better fuel/air mixture in combustion chamber!!! same same!!!!!
dtm is offline   Reply With Quote
Old 11-11-2001, 07:20 AM   #56
Tech Champion
 
Manticore's Avatar
R/C Tech Charter Subscriber
 
Join Date: Aug 2001
Location: Heaven
Posts: 9,999
Default

Quote:
Originally posted by dtm


It still a lump of metal plus some fluid dynamics, thermodynamics and phyiscs.... I see nothing that I don't comprehend.
hahaha yeah, its a lump of moving metal actually. yes it is easy to understand but you still have the wrong concept about fuel/air still in the process of mixing after the carb and in the combustion chamber.
Manticore is offline   Reply With Quote
Old 11-11-2001, 07:21 AM   #57
Tech Champion
 
Manticore's Avatar
R/C Tech Charter Subscriber
 
Join Date: Aug 2001
Location: Heaven
Posts: 9,999
Default

Quote:
Originally posted by dtm


You refer to better 'fuel throw' it is actually 'fuel/air mixture' throw ie better fuel/air mixture in combustion chamber!!! same same!!!!!

Alright Alright !!
Manticore is offline   Reply With Quote
Old 11-11-2001, 09:21 AM   #58
dtm
Tech Champion
 
dtm's Avatar
 
Join Date: Aug 2001
Location: HKG
Posts: 7,551
Send a message via ICQ to dtm
Default

Quote:
Originally posted by Manticore
hahaha yeah, its a lump of moving metal actually. yes it is easy to understand but you still have the wrong concept about fuel/air still in the process of mixing after the carb and in the combustion chamber.
I have a rather simple example but it does illustrate what I mean. If you consider the barrel of the carb as a wind tunnel (it doesn't quite produce laminar flow... but certainly not turblence flow when it is full open!).

You know when they check the aerodynamics of car etc. by introducing a single point smoke source. Well that smoke source remains in a stream. It is vapourised into the air but remains in a stream ie. it is not 'fully' mixed at that point.

If you consider the smoke source in the wind tunnel as the fuel entry point in the carb then you will have the right fuel/air quantity but it is also not completely 'mixed'. This fuel/air quantity will further be mixed in the crank case and also as it enters the combustion chamber via different points... that is what I am talking about!!
dtm is offline   Reply With Quote
Old 11-11-2001, 09:39 AM   #59
Tech Champion
 
Manticore's Avatar
R/C Tech Charter Subscriber
 
Join Date: Aug 2001
Location: Heaven
Posts: 9,999
Default

Manticore is offline   Reply With Quote
Old 11-11-2001, 09:42 AM   #60
Tech Champion
 
Manticore's Avatar
R/C Tech Charter Subscriber
 
Join Date: Aug 2001
Location: Heaven
Posts: 9,999
Default

and read this too !

http://www.novarossi.com/avvertenze/ing/works.html
Manticore is offline   Reply With Quote
Reply

Similar Threads
Thread Thread Starter Forum Replies Last Post
Novarossi 21+5, 21BF 3-port, & GO Tech .21 7-port Turbo!!! $110 shipped!! HoustonAreaRC R/C Items: For Sale/Trade 5 08-05-2008 10:30 AM
Go 3 port race, Go 6 port .25, Go Femca 0801 pipe! Come get it! slaytanic R/C Items: For Sale/Trade 9 07-01-2008 10:05 PM
25amp Power Supply and Multi-Port scottw R/C Items: For Sale/Trade 1 04-05-2006 07:10 PM
Wow!Multi track and multi scale racing in PA hut34 Track Locator Forum 8 12-09-2005 12:54 PM
Wow!Multi track and multi scale racing in PA hut34 Electric Off-Road 0 11-29-2005 05:51 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 10:38 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