R/C Tech Forums

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

Reply
 
Thread Tools Search this Thread
Old 11-10-2006, 05:53 PM   #1
Tech Master
 
Taylorm's Avatar
 
Join Date: Nov 2006
Location: Monclova, Ohio
Posts: 1,647
Default Breaking-in .21?

Whats the best way to break-in a .21 turbo motor? Do you hardcore 1/8 guys do it on the track, or on a stand where temps. and such can be monitored? Dont want to kabooooooom a 500.00 motor.............
Taylorm is offline   Reply With Quote
Old 11-10-2006, 09:20 PM   #2
Tech Adept
 
Join Date: Jul 2006
Posts: 102
Send a message via AIM to apollo
Default

heat cycle method, get it above 220, look it up on google, there are a bunch of sites on it
apollo is offline   Reply With Quote
Old 11-10-2006, 09:57 PM   #3
Tech Elite
 
Pooh2's Avatar
R/C Tech Elite Subscriber
 
Join Date: Mar 2005
Location: Somewhere here on Earth
Posts: 2,518
Send a message via MSN to Pooh2
Default

The best thing 2 do is get the car up 2 temp, (around 210) and run it around half gallon. I wouldn't use that breakin bench!
__________________
MUGEN MRX5/CONTACT TIRES/DESOTO RACING/TEAM LOGIC


"Since the Bible and the church are obviously mistaken in telling us where we came from, how can we trust them to tell us where we are going"?
Pooh2 is offline   Reply With Quote
Old 11-11-2006, 12:42 AM   #4
Tech Elite
 
Join Date: Aug 2003
Location: Henderson, NV
Posts: 4,148
Trader Rating: 28 (100%+)
Send a message via AIM to Scott Fisher
Default

Quote:
Originally Posted by Pooh2
The best thing 2 do is get the car up 2 temp, (around 210) and run it around half gallon. I wouldn't use that breakin bench!

Have you ever used a break-in bench???
__________________
| Capricorn | Ybslow | Proline-Protoform | Johnny Bravo Racing | Desoto Racing | Murnan Modified | Matrix Tires | Powermaster Fuel |
Scott Fisher is offline   Reply With Quote
Old 11-11-2006, 07:47 AM   #5
Tech Elite
 
Pooh2's Avatar
R/C Tech Elite Subscriber
 
Join Date: Mar 2005
Location: Somewhere here on Earth
Posts: 2,518
Send a message via MSN to Pooh2
Default

Quote:
Originally Posted by Scott Fisher
Have you ever used a break-in bench???
Yes I've used it. It's not something that I'd use again if I can help it. I think it kills ur engine faster. I have no proof, but again, but again it's not something that I'd use again.
__________________
MUGEN MRX5/CONTACT TIRES/DESOTO RACING/TEAM LOGIC


"Since the Bible and the church are obviously mistaken in telling us where we came from, how can we trust them to tell us where we are going"?
Pooh2 is offline   Reply With Quote
Old 11-11-2006, 09:55 AM   #6
Registered User
 
Join Date: Sep 2006
Location: kilimanjaro
Posts: 89
Default

Quote:
Originally Posted by Pooh2
Yes I've used it. It's not something that I'd use again if I can help it. I think it kills ur engine faster. I have no proof, but again, but again it's not something that I'd use again.
How could you use one if you don't have one? and I seriously think you just don't have the idea how to use one.
COREX is offline   Reply With Quote
Old 11-11-2006, 10:18 AM   #7
Tech Elite
 
Pooh2's Avatar
R/C Tech Elite Subscriber
 
Join Date: Mar 2005
Location: Somewhere here on Earth
Posts: 2,518
Send a message via MSN to Pooh2
Default

I've had 1, used it a few times and I just don't think that their that good. That's just how I feel. If somebody feels that they work than they should use it if thats what they want. I just think it's better 2 break it in while it's in the car.
__________________
MUGEN MRX5/CONTACT TIRES/DESOTO RACING/TEAM LOGIC


"Since the Bible and the church are obviously mistaken in telling us where we came from, how can we trust them to tell us where we are going"?
Pooh2 is offline   Reply With Quote
Old 11-11-2006, 12:43 PM   #8
Tech Master
 
cdelong's Avatar
 
Join Date: Jul 2004
Location: The Sunshine State
Posts: 1,805
Trader Rating: 12 (100%+)
Default

I use the "Josh Cyrul Method"...

http://www.cefx.net/tips/nitro/break-in/index.php

The only thing I've enoticed is that the temps are very low for the first six tanks when running it so rich (around 120F). I tend to lean mine out just a hair more than Josh recommends- just so the wheels don't spin. Just make it rich enough that it won't RPM much on the high end.

I have also taken an old head and milled the top four cooling fins off it to help keep the temps up during the break in- around 160F- 180F for the first six tanks. Aluminum foil or the cap off a spray paint can over the head may be necessary as well depending on ambient temps.

The engines I've done using this method have lasted the longest of all other methods I've used. I use what works for me. I guess it's all in what you are comfortable with.
__________________
KYOSHO EVOLVA
35PLUS21
FUTABA 3PKS/KO PROPO
BYRON'S FUEL/TWISTER TIRES
cdelong is offline   Reply With Quote
Old 11-11-2006, 01:18 PM   #9
Tech Regular
 
P2gee's Avatar
 
Join Date: Jul 2004
Location: TX
Posts: 378
Thumbs up

I use the Mario Rossi prop method ( bench method ) for my engines, modified a little for my preferences. I use 15% airplane fuel with 20% oil to help keep metal break in particles in suspension and get them out of the motor. Also I run mine at half throttle ( Mr Rossi recommends WOT) using a rich mixture with droplets coming out the exhaust to keep RPMS in check. Try to get temps to the 175- 200 range. Usually run a whole refuel bottle of fuel thru the engine. I also let the engine cool after second tank and pull the head to see if the crosshatch at top of cylinder is starting to burnish, this is what your shooting for. Usually at the end of bottle it looks good. Ihave some motors 4 or 5 years old broke in this way. If it's good enough for Mr Rossi it';s good enough for me.
P2gee is offline   Reply With Quote
Old 11-11-2006, 11:21 PM   #10
Tech Elite
 
Join Date: Aug 2003
Location: Henderson, NV
Posts: 4,148
Trader Rating: 28 (100%+)
Send a message via AIM to Scott Fisher
Default

I think the break in bench is the way to go.
__________________
| Capricorn | Ybslow | Proline-Protoform | Johnny Bravo Racing | Desoto Racing | Murnan Modified | Matrix Tires | Powermaster Fuel |
Scott Fisher is offline   Reply With Quote
Old 11-11-2006, 11:46 PM   #11
Tech Elite
 
nigelnuggets's Avatar
 
Join Date: Jul 2005
Location: Artesia, SoCal.
Posts: 2,187
Send a message via AIM to nigelnuggets
Default

i use the full proof 3 tank method. almost patented.

1 tank super rich @ idle
1 tank super rich full throttle (car is stationary)
1 tank rich on the track

and then lean that sucker.



this does not work for all! but this is my particular way. anyhow, the bench is always a great way to go, i broke my first .21 engine with it, and that motor is domination.
__________________
Kamikaze Toys and Hobbies. www.kamikazetoysandhobbies.com / www.kamikazercracing.com
nigelnuggets is offline   Reply With Quote
Reply

Similar Threads
Thread Thread Starter Forum Replies Last Post
Breaking in XXX-NT AD2 with OS CV-X .12 KorruptedKarbon Nitro Off-Road 9 11-25-2007 08:51 PM
breaking in trx 3.3 lionheart912 Rookie Zone 5 07-30-2007 07:53 PM
Breaking In a O.s. TG 12 Wild Cherry Northwest Racers 23 03-11-2007 12:08 PM
Breaking-in -KoS- Nitro On-Road 5 07-08-2003 04:01 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 08:01 AM.


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