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Old 06-07-2007, 08:46 PM   #76
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Maybe a 6 for running in but the 7's are perfect for when its run in and racing
Try the 7 if they give you trouble ie flaming out all the time then try a 6
for run in id recommend the heat cycle method
http://www.johnnycoolguy.com/JCGR/ma..._break-in.html
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Old 06-09-2007, 06:57 PM   #77
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What kind of temps/settings are you guys running with your plus 5's?

After run in I have settled to about:

3 1/2 out HSN (This is about turn inward from flush.)
1 1/2 out LSN

Temp: 240

I can richen it up a 1/4 turn and she runs about 210 (I saw her at 270 after a qualifier and got that fixed quickly - I hope/guess no damage occurred!)

I think this is about right for racing... not many flame outs and have 1/2 gallon through and use the C7-S extra cold plugs from Novarossi. I would like to know if I am on the same page as everyone else with this motor.
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Old 06-09-2007, 08:52 PM   #78
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tune by hour increments not quarters of turns
my 21-5K ran at 390 twice and got that fix quickly

and no damage was done that i can see with the naked eye
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Old 06-09-2007, 11:47 PM   #79
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Low end sound way lean try 3 1/2 on the low and 3 out on the high temps shouldn't matter tune for performance the use the temps for reference after wards
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Originally Posted by Zen of Speed View Post
What kind of temps/settings are you guys running with your plus 5's?

After run in I have settled to about:

3 1/2 out HSN (This is about turn inward from flush.)
1 1/2 out LSN

Temp: 240

I can richen it up a 1/4 turn and she runs about 210 (I saw her at 270 after a qualifier and got that fixed quickly - I hope/guess no damage occurred!)

I think this is about right for racing... not many flame outs and have 1/2 gallon through and use the C7-S extra cold plugs from Novarossi. I would like to know if I am on the same page as everyone else with this motor.
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Old 06-10-2007, 03:04 PM   #80
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Post Temps

Nitro Junkie is right, tune for performance not just for temps.
They will run a little hotter until they break free for about the first 4-6 litres anyway.
Once you hit that mark they will run a little cooler, between 200-240 is fine.
It should start at say 200-220 at the start of the tank and finish at 220-240 give or take 10-15 degrees F.
If you keep leaning the top end in 1 hour increments until it really starts to scream then bring it back in and see what the bottom end sounds like.
After that turn the top back in 1 hour.
I'd say with the LSN at 1&1/2 turns out it will be way too lean and start to sound like a rotarty engine going bap bap bap bap or just idle really high.
Go to at least 3 turns out & start from there.
Your slide on the carby should only be open 1/2 to 1mm and it should purr nice and smoothly when idling.
You should also be able to get at least 10 seconds just sitting on idle after a big blast then open it to full throttle again and it should just about tear the tires off the rims and rev nice & clenaly.

Quote:
Originally Posted by Zen of Speed View Post
What kind of temps/settings are you guys running with your plus 5's?

After run in I have settled to about:

3 1/2 out HSN (This is about turn inward from flush.)
1 1/2 out LSN

Temp: 240

I can richen it up a 1/4 turn and she runs about 210 (I saw her at 270 after a qualifier and got that fixed quickly - I hope/guess no damage occurred!)

I think this is about right for racing... not many flame outs and have 1/2 gallon through and use the C7-S extra cold plugs from Novarossi. I would like to know if I am on the same page as everyone else with this motor.
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Old 06-11-2007, 05:39 PM   #81
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HEY AUSSIE , DID YOU GET THOSE BEARINGS INSTALLED ? HOW WAS THE SIDEPLAY ON THE TKO BEARINGS YOU GOT ?
LATER , MONTY
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Old 06-12-2007, 02:52 AM   #82
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Talking TKO Bearings

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HEY AUSSIE , DID YOU GET THOSE BEARINGS INSTALLED ? HOW WAS THE SIDEPLAY ON THE TKO BEARINGS YOU GOT ?
LATER , MONTY
Nitro Junkie posted them today i believe so i will have them tomorrow.
They are the same bearings that EB Mods use when they do their mods so they can't be too bad.
One of the guys at our club said he ahs run the same set in 2 motors and they out lasted the motors.
I hope they are good cause i don't want to destroy my Novarossi for a set of bearings.
I'm sure they will be fine.
I have to do my first bearing change when i get them as i have never done it before.
Got any tips?
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Old 06-12-2007, 03:02 AM   #83
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Yeah mate posted them today you should get them tomorrow
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Originally Posted by RCRacing.com.au View Post
Nitro Junkie posted them today i believe so i will have them tomorrow.
They are the same bearings that EB Mods use when they do their mods so they can't be too bad.
One of the guys at our club said he ahs run the same set in 2 motors and they out lasted the motors.
I hope they are good cause i don't want to destroy my Novarossi for a set of bearings.
I'm sure they will be fine.
I have to do my first bearing change when i get them as i have never done it before.
Got any tips?
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Old 06-12-2007, 03:03 AM   #84
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Quote:
Originally Posted by Nitro$junkie View Post
Yeah mate posted them today you should get them tomorrow
Thanks Ashley i'm looking forward to getting them and getting the beast going again. It's been a ball tearer of a motor.
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Old 06-12-2007, 02:58 PM   #85
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it looks suspect that nova give you a set with the new 367`s,i think they should have tko ceramics in them to start with and considering the rossi bearings are dearer as well,ive already replaced mine with another rossi set but wished id gone with tko,the rest of the motor is the baddest f%$#@n motor out there
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Old 08-06-2007, 07:06 PM   #86
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Anyone have problems with the idle staying high for a few seconds? It bothers my son because the idle is high while in the air over jumps. I think it's the tune but I haven't been able to get it right. I have put a new tko front bearing in, sealed the carb and cover. We tried another carb and pipe, nothing really changed.

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Old 08-06-2007, 07:19 PM   #87
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Rex....tell your son to slow down and not use full throttle, that will solve it. See you guys at Full Throttle.
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Old 08-07-2007, 07:09 PM   #88
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22racer...try richening the low end and re-tune.
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Old 08-07-2007, 07:47 PM   #89
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before we tried the other carb I was 5 turns out on the low.

Rex
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Old 08-07-2007, 08:35 PM   #90
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You may actually be too rich on the low with too high an idle setting to compensate. So when you come off the throttle, the idle is too high and there is still plenty of fuel there as it's too rich, hence the high idle. Try leaning the low end and bringing the idle down.
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