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 08-25-2012, 02:38 PM   #4411
Tech Master
 
GREGORY!'s Avatar
 
Join Date: Jun 2006
Location: Greece
Posts: 1,064
Trader Rating: 1 (100%+)
Default

Quote:
Originally Posted by Roelof View Post
Make less scratches on the aluminium part
roelof?do you have the answer??
__________________
" kyosho rrr wc-team orion crf "
" serpent 966-mega zx21 EM "
" mugen mbx6-picco p7r evo 2 "
GREGORY! is offline   Reply With Quote
Old 08-25-2012, 02:48 PM   #4412
Tech Adept
 
Join Date: Jan 2009
Location: Germany
Posts: 180
Trader Rating: 1 (100%+)
Default

I dont think that there are two different materials.

2.thought: or it could be^^. Then it is right what Roelof said. But really, I dont think that is it really needed.
__________________
Radiopost TS401
SebO is offline   Reply With Quote
Old 08-25-2012, 03:05 PM   #4413
Tech Champion
 
Roelof's Avatar
 
Join Date: Aug 2007
Location: Holland
Posts: 5,554
Send a message via ICQ to Roelof
Default

The conrod is always touching the backplate making scratches. I know some have played with teflon and DLC coatings to lower the resistance when touching it which still slowly disapeared and since the Collari 35-plus-21 they have inserted a steel plate. I do not think it makes a difference but hey, somehow the marketing has an effect because people want it.
__________________
Speed is only fiction but a 130+km/h MRS4 is for real.
Roelof is online now   Reply With Quote
Old 08-26-2012, 08:27 AM   #4414
Tech Master
 
GREGORY!'s Avatar
 
Join Date: Jun 2006
Location: Greece
Posts: 1,064
Trader Rating: 1 (100%+)
Default

Quote:
Originally Posted by Roelof View Post
The conrod is always touching the backplate making scratches. I know some have played with teflon and DLC coatings to lower the resistance when touching it which still slowly disapeared and since the Collari 35-plus-21 they have inserted a steel plate. I do not think it makes a difference but hey, somehow the marketing has an effect because people want it.
i don't think that i speak for a marketing part like dls,flex here- there.it 's a 10 euro part that will eliminate the rough worn at the rod and the back plate.
__________________
" kyosho rrr wc-team orion crf "
" serpent 966-mega zx21 EM "
" mugen mbx6-picco p7r evo 2 "
GREGORY! is offline   Reply With Quote
Old 08-26-2012, 07:12 PM   #4415
Tech Master
 
rip67vdub's Avatar
 
Join Date: Mar 2012
Location: NorCal
Posts: 1,039
Trader Rating: 27 (100%+)
Send a message via Yahoo to rip67vdub
Default Question regarding 4 shoe clutch setup

oops. wrong thread.
rip67vdub is offline   Reply With Quote
Old 09-08-2012, 08:11 PM   #4416
asc
Tech Initiate
 
Join Date: Apr 2012
Posts: 29
Default

Does anyone have much experience with the novarossi pre run engines? I recently purchased a flash 21 special pre run and the compression seems quite low (can turn the engine over by hand relatively easily). Is this normal or something to be concerned about?
asc is offline   Reply With Quote
Old 09-08-2012, 08:13 PM   #4417
Tech Elite
 
ToysRUsKid's Avatar
 
Join Date: Jul 2008
Location: Cinncinati, OH
Posts: 2,592
Trader Rating: 15 (100%+)
Send a message via AIM to ToysRUsKid
Default

Quote:
Originally Posted by asc View Post
Does anyone have much experience with the novarossi pre run engines? I recently purchased a flash 21 special pre run and the compression seems quite low (can turn the engine over by hand relatively easily). Is this normal or something to be concerned about?
I had two pre-run .12s this season and mine were similar. There was no shortage of power though.
__________________
Dorian Tisdale - Professional RC Driver Wannabe
RC America \ DeSoto Racing \ XRay \ Novarossi
www.tsrcar.com \ Red Mosquito raceway \ www.racersoftoledo.com \ www.midwestseries.com
ToysRUsKid is offline   Reply With Quote
Old 09-08-2012, 09:07 PM   #4418
Tech Elite
 
lil-bump's Avatar
 
Join Date: Aug 2006
Location: The Cold Great Lakes
Posts: 2,874
Trader Rating: 82 (100%+)
Default

Quote:
Originally Posted by asc View Post
Does anyone have much experience with the novarossi pre run engines? I recently purchased a flash 21 special pre run and the compression seems quite low (can turn the engine over by hand relatively easily). Is this normal or something to be concerned about?
My pre-run Flash PT .12 after 1.5 gallons still has a small mechanical pinch with tons of power. I will purchase all my future engines this way. Engines nowadays take forever to break-in.

Pass you soon...
__________________
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 09-09-2012, 05:00 AM   #4419
asc
Tech Initiate
 
Join Date: Apr 2012
Posts: 29
Default

Interesting. 2 completely different answers. I'm hopefully going to run mine for the first time tomorrow. Guess we will see how it goes.. Hopefully I haven't bought a $600 lemon.
asc is offline   Reply With Quote
Old 09-09-2012, 10:15 AM   #4420
Tech Elite
 
ToysRUsKid's Avatar
 
Join Date: Jul 2008
Location: Cinncinati, OH
Posts: 2,592
Trader Rating: 15 (100%+)
Send a message via AIM to ToysRUsKid
Default

Quote:
Originally Posted by asc View Post
Interesting. 2 completely different answers. I'm hopefully going to run mine for the first time tomorrow. Guess we will see how it goes.. Hopefully I haven't bought a $600 lemon.
I don't think they were completely different. I think you'll be happy with your motor and the time you saved by buying it the way you did.
__________________
Dorian Tisdale - Professional RC Driver Wannabe
RC America \ DeSoto Racing \ XRay \ Novarossi
www.tsrcar.com \ Red Mosquito raceway \ www.racersoftoledo.com \ www.midwestseries.com
ToysRUsKid is offline   Reply With Quote
Old 09-10-2012, 05:20 AM   #4421
asc
Tech Initiate
 
Join Date: Apr 2012
Posts: 29
Default

Thanks for your replies. I ran the car today and the motor seemed to run alright. Still concerned about its longevity though. Once it's warm it extremely easy to turn over by hand. There is barely any resistance at all at tdc.
asc is offline   Reply With Quote
Old 09-10-2012, 07:16 AM   #4422
HHH
Tech Regular
 
HHH's Avatar
 
Join Date: Aug 2008
Location: Singapore
Posts: 423
Default

Quote:
Originally Posted by asc View Post
Thanks for your replies. I ran the car today and the motor seemed to run alright. Still concerned about its longevity though. Once it's warm it extremely easy to turn over by hand. There is barely any resistance at all at tdc.
I have a .12 Keep On pre-broke in that I could turnover by hand before I even started it. I was surprised like you.

It is still the fastest Nova I have had with 9 litres and 3 races through it.

Nova .12 Keep On Tuned
HHH is offline   Reply With Quote
Old 09-11-2012, 06:29 AM   #4423
asc
Tech Initiate
 
Join Date: Apr 2012
Posts: 29
Default

Thanks that's comforting to know. Mine is pretty much the same with no mechanical pinch at all to speak off. I've only had a chance to run a single tank through it so far and it was still quite rich, but it didn't miss a beat. Hopefully get some more time to test this weekend.
asc is offline   Reply With Quote
Old 09-11-2012, 07:40 AM   #4424
Tech Elite
 
ToysRUsKid's Avatar
 
Join Date: Jul 2008
Location: Cinncinati, OH
Posts: 2,592
Trader Rating: 15 (100%+)
Send a message via AIM to ToysRUsKid
Default

Quote:
Originally Posted by lil-bump View Post
I will purchase all my future engines this way. Engines nowadays take forever to break-in.
My first one I was concerned, then I bought a new run-in for the GLC. Paolo tuned it and "SWEET BABY JESUS" that thing was fast. Neither of them had much of a pinch but they ripped. I'm only about 90% of where lil-bump is, I want to learn how to do this on my own but it really is nice to know all you have to do is put a clutch on, tune, and you're ready to race.
__________________
Dorian Tisdale - Professional RC Driver Wannabe
RC America \ DeSoto Racing \ XRay \ Novarossi
www.tsrcar.com \ Red Mosquito raceway \ www.racersoftoledo.com \ www.midwestseries.com
ToysRUsKid is offline   Reply With Quote
Old 09-11-2012, 10:53 AM   #4425
Tech Elite
 
lil-bump's Avatar
 
Join Date: Aug 2006
Location: The Cold Great Lakes
Posts: 2,874
Trader Rating: 82 (100%+)
Default

I replaced the connecting rod and pin after the first 3/4 gallon.


Pass you soon...
__________________
Elliott Hart
Serpent America
Desoto Racing Team
Chicky fan club member #9
One Eighth Racers of Toledo
lil-bump 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 11:58 AM
Axial Engines thread Axial Racing Onroad Nitro Engine Zone 164 10-06-2008 06:48 PM
RB engines thread CraigM Nitro Off-Road 7 01-05-2008 11:57 AM
JP Engines Thread DOMOisCOOL Onroad Nitro Engine Zone 2 02-16-2004 06:00 AM
OS engines thread EVOLUTION Onroad Nitro Engine Zone 44 02-11-2004 07:28 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 10:20 AM.


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

SEO by vBSEO 3.5.0