New Novarossi .21 offroad Plus 4 - Page 139

killabud · 10-28-2009, 06:50 AM

Hey Monty, a little off topic but I didnt want to start a new thread. My buddy just picked up a S21P5XL any tips or info you can provide? I used to run P5's a few years ago, can we expect the same type of engine or is this thing all new?

houston · 10-28-2009, 08:08 AM

Quote:

Originally Posted by killabud

Hey Monty, a little off topic but I didnt want to start a new thread. My buddy just picked up a S21P5XL any tips or info you can provide? I used to run P5's a few years ago, can we expect the same type of engine or is this thing all new?

Same engine , new head

Works awesome , killer engine for all around power and tunability

NJA82 · 11-01-2009, 12:00 AM

Monty, got a couple of questions for you if you can help us out.

Ran my plus 4 in the RC8B today for about 12 tanks, have done the break in process using the heat gun/cycle method etc. for 5-6 tanks before taking it to the track has done a total of about 20-25 tanks now and its starting to run well, temps are dropping and power is rising as we take fuel out of it, i havent had it screaming yet and never really hold full throttle for more than a second or 2, i usually blip and roll the throttle it if i have to keep the momentum up, it has a little bit of pinch left with the plug out but its a lot easier to turn over now, is 20-25 tanks about right for it to drop its nuts? was driving along in the middle of the day and from the start of the tank to the end of the tank the engine sound changed, got a bit louder and a bit meaner sounding as well as the temp dropping, i assume this is the way these engines reach broken in stage? Have checked over all the exhaust seals etc. and all are perfect so its the engines note alone that has changed.

Very impressed with this engine so far, fuel mileage is good but not great but it is still a tad rich at the moment, but the power is awesome, even with the 6.5mm venturi it keeps up with the 1/8 electrics on the track, and blows the reedy`s away

Only other concern i have is the front bearing seems to feel a bit gritty, is this a common problem? Our tracks are a bit dusty at times but nothing to excessive, was a bit muddy today turning into a bit dusty as the track dried up, when i clean the engine i always cap it all off and spray lightly down with simple green, use a soft bristle brush to clean it and then spray it off with methylated spirits, and blow dry lightly with the air compressor then drop some pacer after run oil into it ( it isnt a filled crank ) , i dont think the would have forced water and grit into the front bearing? I clean it with the flywheel on to stop any direct contact with the bearing seal... If i have to replace them i will probably go TKO ceremics but it seems odd that it would get this way after such little use.

Sorry for the long post just wanted to cover all the bases.

Vareck · 11-02-2009, 09:56 AM

Does anybody know what the Oddonnel plug number is that is close to or the same as the Novarossi Turbo C6TG? This last batch of Novarossi Plugs are JUNK. Is it the 97T?

j8ight13 · 11-02-2009, 10:11 AM

Quote:

Originally Posted by Vareck

Does anybody know what the Oddonnel plug number is that is close to or the same as the Novarossi Turbo C6TG? This last batch of Novarossi Plugs are JUNK. Is it the 97T?

I know a few guys that run the OD97T, i actually use the OD 77T and get 13 mins. We have a small tech. track.

houston · 11-02-2009, 11:22 AM

Quote:

Originally Posted by Vareck

Does anybody know what the Oddonnel plug number is that is close to or the same as the Novarossi Turbo C6TG? This last batch of Novarossi Plugs are JUNK. Is it the 97T?

77t , look me up if you need some

Buzz3 · 11-02-2009, 02:51 PM

My plus 4 is at the 1.5 gallon mark and really waking up. I am needing less throttle to clear our triple now. It runs great when warmed up but until it's warm the revs are real slow to come back to idle. I am getting conflicting advice locally so I thought i'd give the experts here a shot. Thanks

houston · 11-02-2009, 03:01 PM

Quote:

Originally Posted by Buzz3

My plus 4 is at the 1.5 gallon mark and really waking up. I am needing less throttle to clear our triple now. It runs great when warmed up but until it's warm the revs are real slow to come back to idle. I am getting conflicting advice locally so I thought i'd give the experts here a shot. Thanks

probably rich low speed , especially when cold . if it is fine when it warms up , leave it . that is why there are warm ups before races

many times i have seen racers just lean the hsn and never even touch the low speed . on a novarossi that doesn't work quite as well . the OS line of engines that might work but not on novarossi engines

proper mixture makes engine purr and make mucho power

Sparky4u · 11-03-2009, 11:31 AM

Houston we have got the engine to stop flaming. However the idol has to be high and it temps at 260 coming off the track. ???????????????????????????

houston · 11-03-2009, 12:38 PM

Quote:

Originally Posted by Sparky4u

Houston we have got the engine to stop flaming. However the idol has to be high and it temps at 260 coming off the track. ???????????????????????????

Who is we ?

Temps not horrible

Does the idle engage the clutch ?

I never opened the engine up but with you saying it only had less than. A gallon of fuel I kind of figured it should be fine . Just remember the tune at the pit changes quite often .

Sparky4u · 11-03-2009, 12:43 PM

Quote:

Originally Posted by houston

Who is we ?

Temps not horrible

Does the idle engage the clutch ?

I never opened the engine up but with you saying it only had less than. A gallon of fuel I kind of figured it should be fine . Just remember the tune at the pit changes quite often .

This is Brian from the nitro pit. We is Andy and myself. The only way it wont flame is to keep the idol up and lean.

chuckinator · 11-03-2009, 04:23 PM

That temp isnt too bad for how wide open the current layout is. Also make sure that you don't have a broken carbon clutch shoe.

Vareck · 11-03-2009, 06:02 PM

Quote:

Originally Posted by chuckinator

That temp isnt too bad for how wide open the current layout is. Also make sure that you don't have a broken carbon clutch shoe.

+1
Or if the whole on the carbon shoe is stretched thats the problem I ended up having.

houston · 11-03-2009, 09:12 PM

Quote:

Originally Posted by Sparky4u

This is Brian from the nitro pit. We is Andy and myself. The only way it wont flame is to keep the idol up and lean.

i know who you are goofball

geez

what it takes is what it takes brian

jokersat · 11-07-2009, 11:26 AM

Does any one test the plus-4 with the new jp-6 pipe!!!!

can i get 11+min ran as i get with the 9901 novarossi pipe!!