MRX-4X
10-27-2009, 09:38 AM
#1306
The lowest position is about 6.5mm taller than stock.
The highest position is about 10mm taller than stock.
(kyosho arms are about 6 or 7)
10-27-2009, 10:31 AM
#1307
My GRP engine also keeps using the original, and it lasts(now almost 7 litres mileage). I am on 25%.
You may need to add shim in your case, try adding 0.1 may help. adding 0.1 won't hurt.
Many people in my country tried to find GRP #7 for their Flash 21, GRP's plug seems give very stable engine tuning, last long and good performance, but needs a strong glow plug voltage to glow, the next one i would say 0 donnel's. I have not used nova's for long long time.
just my 2 cents
10-27-2009, 12:13 PM
#1308
Mugen Ninja engine is suggested to stick with its original #7, but it seems difficult to find(buy). Mario Rossi is kind of having its engine rebrand, but i don't know it is out or made the same as previous. Hope it will. At least, GRP was a very good plug.
My GRP engine also keeps using the original, and it lasts(now almost 7 litres mileage). I am on 25%.
You may need to add shim in your case, try adding 0.1 may help. adding 0.1 won't hurt.
Many people in my country tried to find GRP #7 for their Flash 21, GRP's plug seems give very stable engine tuning, last long and good performance, but needs a strong glow plug voltage to glow, the next one i would say 0 donnel's. I have not used nova's for long long time.
just my 2 cents
My GRP engine also keeps using the original, and it lasts(now almost 7 litres mileage). I am on 25%.
You may need to add shim in your case, try adding 0.1 may help. adding 0.1 won't hurt.
Many people in my country tried to find GRP #7 for their Flash 21, GRP's plug seems give very stable engine tuning, last long and good performance, but needs a strong glow plug voltage to glow, the next one i would say 0 donnel's. I have not used nova's for long long time.
just my 2 cents
10-27-2009, 12:15 PM
#1309
Keep this in mind I live in NYC Bronx and it is cold out here now. should I be running a hot plug.
10-27-2009, 12:47 PM
#1310
Hello guys
Can someone school me on plugs, Hot weather use Hot plug or cold plug, Cold weather use cold plugs or Hot? HELP
LOL
Can someone school me on plugs, Hot weather use Hot plug or cold plug, Cold weather use cold plugs or Hot? HELP
LOL
10-27-2009, 01:05 PM
#1311
1/8th onroaders almost always use 7's. Sometimes an 8 for a really long track on a really hot day. But when it gets below 65 or so, I like to break out a 6. Makes the motor a lot more crisp.
10-28-2009, 11:24 AM
#1312
10-28-2009, 12:37 PM
#1313
Higher mah batteries just last longer on a charge. I had no trouble going a whole day of racing with 1500's but when they died after a few years I picked up the 2400's.
10-29-2009, 02:48 AM
#1314
Cold weather climate : use hotter plug
High altitude ( mountains ) : higher nitro content
Low altitude ( sea levels ) : lower nitro content
be nice to grup A people and copy their engine setup.
Last edited by asw7576; 10-29-2009 at 03:05 AM.
10-31-2009, 05:34 PM
#1315
Well guys let me tell you my drama. I found the #7 and the #6 plugs for the mugen ninja mr-.21 on-road. I was told that this engine does not need 30% fuel, 25% was good, But if I was going to run 30% then I need to add a shim under the buttonhead just like wingracer said went to remove the the buttohead and the sleeve came off also I was thinking ok wiggle it off wrong had to heat it up to remove it when I looked at the piston it looked like some one hit with a hammer!!!!!!! the rod is still new not a dent or stretch because I checked it with one of the new ones I have. and enverytime I remove a plug I made sure the spring on the plug was not in the engine. So know I am out an engine and can not run. Looking into New blocks any ideas out there on what I should get I like navorossi plus 35 or is there something better. 
10-31-2009, 05:37 PM
#1316
I also forgot to say the bearings where done about 3 where split in half
10-31-2009, 07:54 PM
#1317
Ouch. Remember this for the future though. If you start blowing plugs, STOP. It's time for a tear down.
The 35+21 is about as good as it gets. I think I like it better than the Flash.
The 35+21 is about as good as it gets. I think I like it better than the Flash.
11-01-2009, 06:12 AM
#1318
Well guys let me tell you my drama. I found the #7 and the #6 plugs for the mugen ninja mr-.21 on-road. I was told that this engine does not need 30% fuel, 25% was good, But if I was going to run 30% then I need to add a shim under the buttonhead just like wingracer said went to remove the the buttohead and the sleeve came off also I was thinking ok wiggle it off wrong had to heat it up to remove it when I looked at the piston it looked like some one hit with a hammer!!!!!!! the rod is still new not a dent or stretch because I checked it with one of the new ones I have. and enverytime I remove a plug I made sure the spring on the plug was not in the engine. So know I am out an engine and can not run. Looking into New blocks any ideas out there on what I should get I like navorossi plus 35 or is there something better.
11-01-2009, 07:39 AM
#1319
Well guys let me tell you my drama. I found the #7 and the #6 plugs for the mugen ninja mr-.21 on-road. I was told that this engine does not need 30% fuel, 25% was good, But if I was going to run 30% then I need to add a shim under the buttonhead just like wingracer said went to remove the the buttohead and the sleeve came off also I was thinking ok wiggle it off wrong had to heat it up to remove it when I looked at the piston it looked like some one hit with a hammer!!!!!!! the rod is still new not a dent or stretch because I checked it with one of the new ones I have. and enverytime I remove a plug I made sure the spring on the plug was not in the engine. So know I am out an engine and can not run. Looking into New blocks any ideas out there on what I should get I like navorossi plus 35 or is there something better.
http://kamikazercracing.com/proddeta...=35plus21TUNED
OR
http://kamikazercracing.com/proddeta...od=NOVS21WCS09
11-01-2009, 08:16 AM
#1320
