Thank you both for the fast replies :).
What do you mean to try clear out before it stays on idle for a long period ? Give it a good full throtle before ?

Anyone tell me what kind of gas mileage a Clio P5 gets?

Pretty much the same as the P5XLT... about 11 minutes give or take 30 seconds. Tuning is the main thing. While running mine still on the rich side, I was at about 9 minutes. When I got about a gallon thru it, I had to lean it out another 2 hours and started getting over 10 easy, say 10:30 to 10:45. Installed a cooler and bumped it up to 11. Max time I have ever got at race pace was 11:15.

Got a chance to buy a brand new Murnan Modified one but if I can't get ten I don't want it

Slightly throttle a bit in awhile so it wont load up

Has any one got a Novarossi Mito .21 4-Port? How different is it than the Keep Off 4?

Small restrictor, in a truck, 10 should be no problem. Im running the 5.6mm on my P5 and come at 10-10:30 with time to spare... Buggy, may be close. May have to add an exhaust cooler and run a longer feed line.

The difference between the Clio and P5XLT are the cooling head and carb. So if the carb is supposed to be that much better, you got even more time to spare..

I hear Murnan does good work. Get in contact with him and find out what he is seeing from his motors. Straight from the horses mouth is always a good thing. Its the back side you have to worry about.

Looking at getting a new motor since it looks like my P5XLT decided it was time for some bearings to go bad. Looking at the ~$400 price range.

Was looking at the Keep Off (Ceramic Bearings) or the Novarossi VIR-TUS 7-Port .21. Any opinions? Going into a Losi 8ight 3.0

Looking for a new engine
 

I've been out of the game for a year and I'm looking for a new engine. I've got my eye on either a Keep-Off 21-4, Keep-Off 21-4/S and a Mito 4. I'm looking for good fuel milage and a strong bottom-end. Can you guys tell me how these engines respond on the track and how their performance differs? I'm also open to suggestions on other Nova-based engines.

:tire: Thanks! :tire:

You should look at the Legends 4. It is a Keep Off 21-4 with the new carb on it. It is a great engine fast and very sooth for about $290 - $300.

what is the best engine for a truggy? good run time and power..will most likely get a truggy within a few months

Need to try the mito 7 or legend 7, new carb is great ,awsome power

Ahh Rex, the blue-headed Novas. I used to run the original Rex P5 when it first came out and later the Rex 421B back in the day. Wow, feeling nostalgic all of the sudden. I'll give it a close look. Thanks.

I've never owned a new nova so this will be a first for me can't wait to get my buggy built and try out this rex legend 4 2096 combo

what pipe are you guys running with a noarossi p5xlt

Anyone?

The virus and mito use the same carb Along with the legend rex motor.

Legend is a better versioN of the keep off. I have one it's awesome fast and very smooth.

9901

would someone be able to tell me if the novarossi beat 4 engine block is the same as the novarossi 21-4 BTT.

broke in my paloma today using byrons30% 11 % oil werks 2013 pipe nasty motor in buggy any other pipe recomendations to tame it a bit medium sized track with about 100 foot straight

Yes

The block is pretty much the same but the only difference between the two is the pin that holds the sleeve in the beat 4 is located on the side of the sleeve and the btt has it on the the front side of the block .

Hi Everyone,

Im just a new guy in the nitro world, for a start I got a Novarossi Live Loco .21 engine. but Im still thinking on what tuned pipe and manifold should I use. (before i get a competition engine, i want to know everything with the cheap engine and no worries for me in case i break this engine). I just want to confirm if I can use this engine on my truggy? (Team C T8T).. can you please suggest a good tuned pipe and manifold for me? Really appreciate if you can suggest anything..

will the Efra 2084 fit on this engine?
can a 3.5cc off road manifold and pipe fit on any 3.5cc off road engine?

Thanks in advance..

2096SS/41021
http://www.houstonsengineservice.com...edbf66b545f16e

Monty has great prices and awesome service. You might want to contact him
and see if he has any other suggestions.

9901/41021 combo will works too

ty

Hello all,

I am having a bit of a trouble with my nova 21-4. This weekend I was running in the thirty minute main and it was running awesome, great power everywhere all day and great smoke. About 20 minutes into the main I came in for fuel and everything was great but when I left pit lane I had almost no bottom end. When I gave it throttle it had a flat spot right off the bottom then it would rev out like normal and have great top end. There was still smoke all the way through and the glow plug was new that race. I am running byrons 30% like I always have and my temps were a solid 230-235 all day long. I'm not sure what could be going on. Any help would be appreciated.

Thanks in advance.

Did it continue to do this thru the rest of that tank or just when you left the pits... If it was just the once, I think maybe either the cool fuel hit the carb and acted a little funky or your pit man did an amazing job getting you every drop in the tank and when the lid closed, it may have forced some into the carb and it loaded up.....
If it was a one time thing, I wouldn't worry about it...

At first I was thinking it was the cool fuel into the carb but it continued until the last minute of the race. I was able to finish the race but without low end power. It makes no sense. I did flame out on the last turn but was able to roll across the line to finish and once I was done my pitman grabbed my car and it instantly started back up. It was still doing the same thing though.

Check your pressure line ;)

Sound like weak plug, maybe the tune is very lean, new plug will not last...

Replaced pressure line and fuel line just incase. Put new plug clutch bearings and clutch shoes on. Fired it up and same thing runs awesome for a while then just out of no where no low end.

I have had engines with severely scored P/S set run pretty well cold then lose all bottom end once they warmed up because all the compression was gone.

Did you lawn dart it really hard?

Wrist pin clip pop out ?

You might want to pull the P/S and check.

Well it's not that I lose bottom end as soon as it gets warm. It's happens after 20-30 minutes of driving. But I did take the engine apart to have a look. Everything is in tack inside and the piston and sleeve have minimal metal pinch when cold. Bearings are free moving and nothing looks out of normal. I don't think I pulled a lawn dart moment but it could have happened. When I put the engine back together I seal it and performed a leak test. No leaks found so I put it back in the car. Haven't ran it yet due to weather but as soon as I do I'll pass it along.

Thanks to everyone so far that has helped.

hmm
 

20-30 minutes is a long time. It may be getting a little low on compression. 4 port novas are kinda weird on torque anyway. Sometimes they feel perfect and some time they feel low on torque. It might be a good idea to get it resized from raya and or you might be a little lean on the top end.causing it to be a bit rich on the bottom and so when it gets warmend up all the way it goes flat or you may be rich all around. 230 is a bit cool for 20 minutes. I would lean the bottom and make top flush. and slightly lean top until iit runs good. Hope this helps. I have had that happen before and its never easy to know exactly what causes it.

That's good to hear, hopefully its just a tuning issue.

I also have issues with my old keep off 4 , it's perfect from maintenance point of view, no air leakages and new biella is installed also front bearing. I'm getting a good tune in 10 minutes on about 105 Celcius and then after 15 minutes of run on the track i get too lean low end with temp rises 115-120 Celcius. Car is not drivable with lean low end. When i go to rich it out temp is dropping below 100 Celcius and flame out because of too rich low end. This phenomenon is end of life of piston and sleeve, this is how more experienced racers explain to me this issue. Compression is vary after certain time running or if temperature rises a certain point. I think is reasonable after 60-80 liters of consumption and something to expect.

P5XLT
 

I ran my first p5 this past weekend. And I must say you don't need anything else in a buggy (8ight 3.0) . This thing screamed down the straight away with the os and keep offs I couldn't believe it. Granted this is not my first nova (which was keep off 7) but I'm in love with this engine. 9886 41021 combo

Check that you clutchsprings are new. It could also be that your engine is slightly lean, so it runs hot after some time.

Test this also:
Take brakecleaner and spray right in front of the enignes front bearing. If it dies, and your front bearing is nwe, you have a worn crankcase/crankshaft. If you do, use the Buku crankcasecap. I have used it on many enignes having problems, but moastly they have a tuningproblem

Please give feedback:-)

Hey all! With a fully broken in engine cold, will it still be hard to turn the flywheel/crank over by hand? Right now I still cant turn my Nova over when its cold by hand but everytime I run it I notice its getting a little bit easier to turn when cold each time. Is there a point when it stops wearing in and the turn over pressure needed is the same? Will it ever get very easy to turn over cold?