352LikesNOVAROSSI Engine thread....
10-16-2012 | 07:11 PM
#4366
depends what you are after.... stock they are quite nice, they have good bottom/midrange and a reasonable top end...... Some people love them the way they are, others find them to be a little too mild....I cant speak for others but my modified version is a pretty substantial bump in power and RPM over stock....bottom end we gain a little, midrange we gain a fair bit and the top end of the modified absolutely sings compared to stock.......The modified version carries all the same characteristics as stock, except its a whole pile faster......... Some love them the way they are, others will like the modified version better..... just depends on how much juice you want .
10-17-2012 | 07:05 PM
#4367
Temps between 100 and 110º C. With full tank it shall be 100ºC. When the tank is nearly empty the temp will climp to a little under 110ºC.
Ambient temp between 15 and 25ºC.
3 tank at idle speed.
The next 4 tanks with a little more throttle after each tank so you start the 7th tank at 50% speed. The last 8th tank with various RPM and no full speed runs for more that a second or so at a time.
Maybe an extra shim under the head.
This is how I do it.
Ambient temp between 15 and 25ºC.
3 tank at idle speed.
The next 4 tanks with a little more throttle after each tank so you start the 7th tank at 50% speed. The last 8th tank with various RPM and no full speed runs for more that a second or so at a time.
Maybe an extra shim under the head.
This is how I do it.
Cheers
10-17-2012 | 10:33 PM
#4368
Tech Master
Joined: Jul 2009
Posts: 1,792
From: Frederikshavn, Denmark
Normally I run it easy until 2 liters if the balls hasn't droped. Then race tune.
One of my RC friends ran BTT engines until a team change. One of the engines had 6 liters on it, and the conrod was worn out... Why? Too low temp during break-in. Or that was what we concluded because he didn't leaned it enough to get the engine up to 100ºC even with the head wrapped.
10-18-2012 | 05:14 AM
#4370
10-18-2012 | 07:08 AM
#4372
Tech Master
Joined: Jul 2009
Posts: 1,792
From: Frederikshavn, Denmark
You're so funny! 
Minor detail... ToMato/tomAto
BTW: I run 20% nitro for the first half GALLON:
Less nitro requires less compression so you don't have add an extra shim during break-in.
Less stress on crankpin and rod due to less powerfull combustion.
Easier to keep the temp high enough because high nitro percents cools the engine.
Lower fuel costs.
Minor detail... ToMato/tomAto
BTW: I run 20% nitro for the first half GALLON
:Less nitro requires less compression so you don't have add an extra shim during break-in.
Less stress on crankpin and rod due to less powerfull combustion.
Easier to keep the temp high enough because high nitro percents cools the engine.
Lower fuel costs.
Last edited by Lille-bror; 10-18-2012 at 08:20 AM.
10-18-2012 | 03:38 PM
#4375
I have found the Xray with Lucky 7 air filters to be a great combo. I have a around 7 of these that i just replace when needed on race day. then wash and reoil when i get home and replace back in the zip lock bag for the next day.. Filters get used until i cant remove impregnated particles...then they get replaced with new ones.....
10-18-2012 | 04:14 PM
#4376
Suspended
iTrader: (7)
Joined: Nov 2000
Posts: 1,012
I have found the Xray with Lucky 7 air filters to be a great combo. I have a around 7 of these that i just replace when needed on race day. then wash and reoil when i get home and replace back in the zip lock bag for the next day.. Filters get used until i cant remove impregnated particles...then they get replaced with new ones.....
10-18-2012 | 06:22 PM
#4377
10-18-2012 | 07:14 PM
#4378
I would bet if you tried advantage racing filter you won't try another plus they are cheaper then all the rest. if you don't like them PM me.
10-19-2012 | 01:57 AM
#4380