Nova353 09 vs OS 12 XZ
#5
Actually I have some bad feelings about nova... I have seen a lot of novas flaming out when traction roll or have some crashes. Also most of the people say they have bearing problems. I raced with picco and it never had a problem in its first race, absolutlely no flame outs..
But in its 2.race, the high idle problems begun, I think it was a leak issue.
Now I cant decide what motor to run.. nova or picco..
But in its 2.race, the high idle problems begun, I think it was a leak issue.
Now I cant decide what motor to run.. nova or picco..
#6
Tech Adept
Joined: Sep 2006
Posts: 213
From: Athens
novas are considered to be the best engines arround , though os speed are almost new into the racing category engines and they have done it very well so far...
i've seen the 353 and i own one OS 12 speed xz.Both engines run good ,actually really good.OS is much cheaper and the only thing it needs is a conrod every 5 litres , although it has a new type of conrod which is considered to be much stronger than the one in the spec 2 , though i don't wanna risk it...
racing the angine couple of weeks ago , many people were amazed about the XZ that goes so fast , although there were all type of brands in the race like RB , NOVA , SIRIO , MAX POWER MF , PICCO.
So i choose OS XZ .this engine combines everything...SPEED , CHEAP , STRONG
i've seen the 353 and i own one OS 12 speed xz.Both engines run good ,actually really good.OS is much cheaper and the only thing it needs is a conrod every 5 litres , although it has a new type of conrod which is considered to be much stronger than the one in the spec 2 , though i don't wanna risk it...
racing the angine couple of weeks ago , many people were amazed about the XZ that goes so fast , although there were all type of brands in the race like RB , NOVA , SIRIO , MAX POWER MF , PICCO.
So i choose OS XZ .this engine combines everything...SPEED , CHEAP , STRONG
#7
musti72 Actually I have some bad feelings about nova... I have seen a lot of novas flaming out when traction roll or have some crashes. Also most of the people say they have bearing problems. I raced with picco and it never had a problem in its first race, absolutlely no flame outs..
But in its 2.race, the high idle problems begun, I think it was a leak issue.
Now I cant decide what motor to run.. nova or picco..
are you serious????
they must have had really really bad tune.... as for the rest no comment.... buying a novarossi means that you buy quality...
silverM3- go with an engine that your pocket can support
But in its 2.race, the high idle problems begun, I think it was a leak issue.
Now I cant decide what motor to run.. nova or picco..
are you serious????

they must have had really really bad tune.... as for the rest no comment.... buying a novarossi means that you buy quality...silverM3- go with an engine that your pocket can support
#8
I know they are good quality, I have bought two plus12-3sct's for the season, but even in worlds they flame out. Is it all about tuning issue?
Some users in Maxpower and JP racing thread complains about the bearings. I think those bearings are the same with Novas. Actually I expect bearings from nova to run at least a piston-liner's life, about 15ltrs.
btw I dont think OS is "much" cheaper than novarossi. rc-toro has a deal for 353'09 for about 360$ and 12xz is around 330-350$
Some users in Maxpower and JP racing thread complains about the bearings. I think those bearings are the same with Novas. Actually I expect bearings from nova to run at least a piston-liner's life, about 15ltrs.
btw I dont think OS is "much" cheaper than novarossi. rc-toro has a deal for 353'09 for about 360$ and 12xz is around 330-350$
#10
The 11.9 bearings are only used in the sct engines.
Last year nova had a bad batch of bearings, and so there where a lot of complaints with the bearings. JP and Max where effected as well. The front bearing started leaking very quickly which caused a hard to tune engine.
Now they have changed the bearings and they put in a better seal.
Last year nova had a bad batch of bearings, and so there where a lot of complaints with the bearings. JP and Max where effected as well. The front bearing started leaking very quickly which caused a hard to tune engine.
Now they have changed the bearings and they put in a better seal.
#11
You really can't go wrong with either. It really depends on what you want to spend and how comfortable you will be with whichever engine you choose. I have raced both Novarossi and OS engines and have not had issues with either. Some out here will swear by this engine or that engine; many never having tried the other so they would not know if any of the competition is comparable. The one good thing about OS is that their internals (piston/sleeve and rod) are cheaper on the pocketbook than Novarossi. So, pick the one you will feel most comfortable and roll with it.
#12
The 11.9 bearings are only used in the sct engines.
Last year nova had a bad batch of bearings, and so there where a lot of complaints with the bearings. JP and Max where effected as well. The front bearing started leaking very quickly which caused a hard to tune engine.
Now they have changed the bearings and they put in a better seal.
Last year nova had a bad batch of bearings, and so there where a lot of complaints with the bearings. JP and Max where effected as well. The front bearing started leaking very quickly which caused a hard to tune engine.
Now they have changed the bearings and they put in a better seal.
#13
Thanks everyone for their inputs. Appreciate it! 
If both engines are equally capable, of course, I would go for a cheaper one.
I know NovaRossi is famous for their quality. But, it doesn't mean that they will always produce an awesome engine. I had a Nova367 plus2 before, and it was quite a disappointment. This is why I don't want to based my decision on the reputation of the engine company.

If both engines are equally capable, of course, I would go for a cheaper one.
I know NovaRossi is famous for their quality. But, it doesn't mean that they will always produce an awesome engine. I had a Nova367 plus2 before, and it was quite a disappointment. This is why I don't want to based my decision on the reputation of the engine company.
#15
Hows the XZ compare on fuel milage to the TZ speed.
I have a TZ speed and can only just make the 6 min mark some times it falls short of that. My main opposition runs the TZ speed as well and generally gets the 6 mins.
I have a TZ speed and can only just make the 6 min mark some times it falls short of that. My main opposition runs the TZ speed as well and generally gets the 6 mins.



