R/C Tech Forums

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

Like Tree32Likes
Reply
 
Thread Tools Search this Thread
Old 10-07-2012, 10:59 AM   #4441
Tech Master
 
Join Date: Apr 2010
Posts: 1,097
Thumbs up

Quote:
Originally Posted by greg.dawn View Post
we have used o'donnell plugs they were cheap and the white dose not fall out and wreck your engine but i is a personal thing we got heaps when they were about $4.oz each and they are hard to get now can run for a lot of race events
greg
kyosho malaysia is offline   Reply With Quote
Old 10-07-2012, 11:02 AM   #4442
Tech Master
 
Join Date: Apr 2010
Posts: 1,097
Default

Quote:
Originally Posted by hobbs View Post
what o'donnell plugs did you use???
77 or 97??
use 97,99 will lost some power
kyosho malaysia is offline   Reply With Quote
Old 10-10-2012, 08:48 PM   #4443
Tech Adept
 
Join Date: Aug 2012
Posts: 145
Trader Rating: 3 (100%+)
Default

What is the difference between 35 plus 21, flash 21, and keep on 21?
howard85may is offline   Reply With Quote
Old 10-10-2012, 09:01 PM   #4444
X4
Tech Fanatic
 
X4's Avatar
 
Join Date: Aug 2004
Posts: 956
Trader Rating: 3 (100%+)
Default

Quote:
Originally Posted by howard85may View Post
What is the difference between 35 plus 21, flash 21, and keep on 21?
Fast, Faster and Fastest
X4 is offline   Reply With Quote
Old 10-10-2012, 09:10 PM   #4445
Tech Adept
 
Join Date: Aug 2012
Posts: 145
Trader Rating: 3 (100%+)
Default

Quote:
Originally Posted by X4 View Post
Fast, Faster and Fastest
Why is the keep on cheaper? On amain it's 489 and the flash is 575?
howard85may is offline   Reply With Quote
Old 10-10-2012, 11:23 PM   #4446
Tech Adept
 
Spillertwo's Avatar
 
Join Date: Jan 2002
Posts: 246
Default

Quote:
Originally Posted by howard85may View Post
Why is the keep on cheaper? On amain it's 489 and the flash is 575?
Difference between them is also age:
the 35 Plus has been around for a while
the flash was last years new engine
the keep on was this years new engine

No idea why the keep on is cheaper, normally it is the other way around.
Maybe amain bought a big batch of keep on's for a low price.
Maybe the keep on is more difficult to sell because it has a very special and expensive main bearing.
Maybe the flash is getting rare and price goes up because people are still looking for it.
Just my thoughts :-)
Spillertwo is offline   Reply With Quote
Old 10-10-2012, 11:43 PM   #4447
Tech Adept
 
Join Date: Aug 2012
Posts: 145
Trader Rating: 3 (100%+)
Default

Quote:
Originally Posted by Spillertwo View Post
Difference between them is also age:
the 35 Plus has been around for a while
the flash was last years new engine
the keep on was this years new engine

No idea why the keep on is cheaper, normally it is the other way around.
Maybe amain bought a big batch of keep on's for a low price.
Maybe the keep on is more difficult to sell because it has a very special and expensive main bearing.
Maybe the flash is getting rare and price goes up because people are still looking for it.
Just my thoughts :-)
So the flash just came out last year? I just recently started following Novarossi lineup.
howard85may is offline   Reply With Quote
Old 10-11-2012, 01:53 AM   #4448
Tech Champion
 
Roelof's Avatar
 
Join Date: Aug 2007
Location: Holland
Posts: 6,063
Send a message via ICQ to Roelof
Default

Quote:
Originally Posted by howard85may View Post
What is the difference between 35 plus 21, flash 21, and keep on 21?
Quote:
Originally Posted by X4 View Post
Fast, Faster and Fastest
Depending the driver there are more options....

fastest - slower - slowest
controlable - uncontrolable -wrecked
5:00 - 4:45 - 4:30 (runtime)
__________________
The quality of an answer comes with the quality of the question.
Roelof is offline   Reply With Quote
Old 10-11-2012, 02:00 AM   #4449
Tech Champion
 
Roelof's Avatar
 
Join Date: Aug 2007
Location: Holland
Posts: 6,063
Send a message via ICQ to Roelof
Default

The flash is already for serveral years on the market but they have changed it from time to time as they have done it with the 35+.

Regarding the "special" bearing of the Keepon, as far I have seen you can mill out the edge in the crankcase and place a normal bearing.
__________________
The quality of an answer comes with the quality of the question.
Roelof is offline   Reply With Quote
Old 10-11-2012, 02:23 AM   #4450
Tech Regular
 
Join Date: Apr 2005
Posts: 314
Default

One more thing I don't like about the Keep-on. It is using a special exhaust seal which is only available from Novarossi and goes for around 12 Euro a pop
fulcrum2 is offline   Reply With Quote
Old 10-11-2012, 02:35 AM   #4451
Tech Adept
 
Join Date: Aug 2012
Posts: 145
Trader Rating: 3 (100%+)
Default

Ok, so with the best driver, all other variables being equal, the keep on is the fastest? I see some flash and keep on with the "A" or "S" behind the name. Does this mean steel and ceramic bearings? Also, i looked on kamikaze rc website and they have some listed as "S" and full ceramic. Aren't they the same thing?
howard85may is offline   Reply With Quote
Old 10-11-2012, 03:01 AM   #4452
Tech Champion
 
Roelof's Avatar
 
Join Date: Aug 2007
Location: Holland
Posts: 6,063
Send a message via ICQ to Roelof
Default

Does it matter if it has a light cooling head? (just a few grams)
Does it matter that it has a lowered head? (comes most of the time with more heat in the engine)
Does it matter if it has a steel or a ceramic bearing? (most drivers can not notice the difference)

You have to think about the engine itself and not the gadgets which comes with it. If you are no fast driver all those gadgets will not help to get you close to the toplevel drivers..
__________________
The quality of an answer comes with the quality of the question.
Roelof is offline   Reply With Quote
Old 10-11-2012, 04:51 AM   #4453
Tech Master
 
GREGORY!'s Avatar
 
Join Date: Jun 2006
Location: Greece
Posts: 1,074
Trader Rating: 1 (100%+)
Default

Roelof,i think that a ;good; 35 plus 21 with steel bearing is a faith dog!
__________________
" kyosho rrr wc-team orion crf "
" serpent 966-mega zx21 EM "
" mugen mbx6-picco p7r evo 2 "
GREGORY! is offline   Reply With Quote
Old 10-11-2012, 09:56 PM   #4454
Tech Adept
 
Join Date: Aug 2012
Posts: 145
Trader Rating: 3 (100%+)
Default

Quote:
Originally Posted by Roelof View Post
Does it matter if it has a light cooling head? (just a few grams)
Does it matter that it has a lowered head? (comes most of the time with more heat in the engine)
Does it matter if it has a steel or a ceramic bearing? (most drivers can not notice the difference)

You have to think about the engine itself and not the gadgets which comes with it. If you are no fast driver all those gadgets will not help to get you close to the toplevel drivers..
Why doesn't the keep on have coated piston like the flash? Is it better material?
howard85may is offline   Reply With Quote
Old 10-12-2012, 02:36 AM   #4455
Tech Champion
 
Roelof's Avatar
 
Join Date: Aug 2007
Location: Holland
Posts: 6,063
Send a message via ICQ to Roelof
Default

Before the coated pistons there were a lot of issues with damaged pistons at the exhaust port, they looked like they had to less lubrication in conbination with a tight pinch and so the surface of the piston showed as it was rubbed.

The coating was a some kind of DLC which creates a very low friction surface. But after running in the part where it touched the sleeve most had no coating anymore. Probably they have done it to give it a smoother run-in for not damaging the piston.
In the real automotive industry (as I was tod for sure with Mercedes) this is also done a lot on the crankpins.
__________________
The quality of an answer comes with the quality of the question.
Roelof is offline   Reply With Quote
Reply

Similar Threads
Thread Thread Starter Forum Replies Last Post
Sirio engines thread EVOLUTION Offroad Nitro Engine Forum 2824 04-29-2014 10:58 AM
Axial Engines thread Axial Racing Onroad Nitro Engine Zone 164 10-06-2008 05:48 PM
RB engines thread CraigM Nitro Off-Road 7 01-05-2008 10:57 AM
JP Engines Thread DOMOisCOOL Onroad Nitro Engine Zone 2 02-16-2004 05:00 AM
OS engines thread EVOLUTION Onroad Nitro Engine Zone 44 02-11-2004 06:28 PM



Currently Active Users Viewing This Thread: 4 (2 members and 2 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 05:01 AM.


Powered By: vBulletin v3.9.2.1
Privacy Policy | Terms of Use | Advertise Content © 2001-2011 RCTech.net