Breaking in a OS Vzb V-spec How did you do it?
12-30-2007, 02:24 AM
#1
Tech Regular
Thread Starter
Breaking in a OS Vzb V-spec How did you do it?
im in the process of gretting some fresh fuel to breakin my Vspec, ive read articles on whats the best way eg RCuniverse, interested in knowing>> .
what and how did you run yours in?
what and how did you run yours in?
12-30-2007, 08:22 AM
#2
Registered User
Ran mine in by :
3 tanks on the box using a heatgun and foil to make sure temp was above 200, i kept it at 220-240
then i put the car on the track and run another 4 tanks through it while gently running around. bringing it in to the pits every so often to check temp.
I then run it rich at a race day and im pleased to say nearly 4 gallons later its still running sweeet
Brian
3 tanks on the box using a heatgun and foil to make sure temp was above 200, i kept it at 220-240
then i put the car on the track and run another 4 tanks through it while gently running around. bringing it in to the pits every so often to check temp.
I then run it rich at a race day and im pleased to say nearly 4 gallons later its still running sweeet
Brian
12-30-2007, 07:08 PM
#5
Tech Adept
Fire it up on the box and get it up to 200 deg. let it idle for about 15 or 20 minutes at that temp then shut it off and let it cool with the piston at bottom position. Repeat that about 4 times maybe 5 at most. This heat cycles the motor.
now fire it up and run it on the ground, the needles should be pretty fat at this point. run it around in the parking lot using 1/4 throttle blips for one tank. Repeat this for the first 3 tanks but lean it out about 1 or 2 hours on the top for each tank.
When you get to the third and forth tank you can give it 1/2 to 3/4 throttle blips and some 1/2 throttle passes for short distance.
For each tank lean it out an hour or two on top and keep an eye on your temp. after about 6 tanks you should be running 240 or 250 at most with full throttle blips and some 3/4 throttle passes.
6 to 8 tanks should break in a v-spec now throw it on the track and race tune it.
Idleing your motor on the box for 2 or 3 tanks is a waste of time for most modern nitro engines, per Ron Paris. Your just prolonging the break in process with no added benefits.
now fire it up and run it on the ground, the needles should be pretty fat at this point. run it around in the parking lot using 1/4 throttle blips for one tank. Repeat this for the first 3 tanks but lean it out about 1 or 2 hours on the top for each tank.
When you get to the third and forth tank you can give it 1/2 to 3/4 throttle blips and some 1/2 throttle passes for short distance.
For each tank lean it out an hour or two on top and keep an eye on your temp. after about 6 tanks you should be running 240 or 250 at most with full throttle blips and some 3/4 throttle passes.
6 to 8 tanks should break in a v-spec now throw it on the track and race tune it.
Idleing your motor on the box for 2 or 3 tanks is a waste of time for most modern nitro engines, per Ron Paris. Your just prolonging the break in process with no added benefits.
12-30-2007, 07:15 PM
#6
Tech Adept
You should be running your new motor a bit richer than the factory setting to break it in. i'de go atleast a half or three quarter turn out on the top from factory.
12-30-2007, 07:22 PM
#7
i run trinity 20% break-in fuel for about 3 tanks on the starter box. then i take the extra head shim off and run sidewinder 30% and run it around until the 6th tank. finally i start tuning on it until the temp gets 2 about 230 degrees.
also when i break it in on the box i use a heat gun to warm it up then start it. i run it until it gets to about 200 degrees then shut it off to cool down and restart the process all over until i have gon through those 3 tanks
also when i break it in on the box i use a heat gun to warm it up then start it. i run it until it gets to about 200 degrees then shut it off to cool down and restart the process all over until i have gon through those 3 tanks
12-30-2007, 10:25 PM
#9
I love how all u guys are saying 5-13 tanks and its broken in....
...a motor is broken in when there is no mechanical pinch left...and thats the ONLY way to tell....with no Glo plug does it still stick at top ?....if So its not broken in....Plain and simple....imo alot of guys push there motor's Way to hard WAY to early in there life.....take it easy guys...take ur time...make sure its right the First time around. 
...a motor is broken in when there is no mechanical pinch left...and thats the ONLY way to tell....with no Glo plug does it still stick at top ?....if So its not broken in....Plain and simple....imo alot of guys push there motor's Way to hard WAY to early in there life.....take it easy guys...take ur time...make sure its right the First time around.
12-30-2007, 11:10 PM
#10
Tech Regular
Thread Starter
Thanks for the info will idle her for 3 tanks and on 4th blip her around and by 8 tanks should be ready to race tune like mentioned by hookamega.
12-31-2007, 01:01 AM
#11
Registered User
the point to idling 2-3 tanks is to seat the bearings properly as its a known weak point on the v spec (old model which i have) but its reccomeded on the new one as well,
i myself thought the same way its a waste of time but after being told by the os drivers over here who race with me i thought i better listen to them and hey it works so who am i to argue
i myself thought the same way its a waste of time but after being told by the os drivers over here who race with me i thought i better listen to them and hey it works so who am i to argue
12-31-2007, 01:24 AM
#12
Tech Regular
Thread Starter
right o thanks for that will keep that in mind.
12-31-2007, 03:17 AM
#14
Tech Regular
Thread Starter
i got mine from RChobbies and had them match Ultrahobbies price, but you can get the V-spec for 280 from radiomodelsupplies at the moment so be quick.