352LikesNOVAROSSI Engine thread....
05-08-2011 | 10:41 PM
#1036
Tech Initiate
Joined: Aug 2010
Posts: 37
From: Norway
They are very different in the powerband,even tough the specs are
nearly the same.My Bonito feels like driving a RBWS7,but with tons of more power.the Toro more more like a RBC6...just to compare.I have the Toro nero team engine in my Hyper 9 GL with a 6.5 mm venturi.I have the Bonito
7xlbs in one of my hyper 8.5 pros with a 8mm venturi.Except that
i use the same pipe,header,flywheel,clutch,springs and plugs
in the Bonito and the Toro
What makes them so different,??The Bonito have a much better lineare
powerband then the Toro have,but the Toro works good when it comes
to exploding take off's.
05-09-2011 | 01:22 AM
#1037
Will this pipe get good runtime on a plus 4C in a buggy? its alot cheaper than the novarossi pipes so im thinking about it. how does it compare to the 9901 for runtime
http://www.amainhobbies.com/product_...-Hard-Anodized
http://www.amainhobbies.com/product_...-Hard-Anodized
05-09-2011 | 06:31 AM
#1038
I have 2 Toro nero team and 1 Bonito 7xlbs and
They are very different in the powerband,even tough the specs are
nearly the same.My Bonito feels like driving a RBWS7,but with tons of more power.the Toro more more like a RBC6...just to compare.I have the Toro nero team engine in my Hyper 9 GL with a 6.5 mm venturi.I have the Bonito
7xlbs in one of my hyper 8.5 pros with a 8mm venturi.Except that
i use the same pipe,header,flywheel,clutch,springs and plugs
in the Bonito and the Toro
What makes them so different,??The Bonito have a much better lineare
powerband then the Toro have,but the Toro works good when it comes
to exploding take off's.
They are very different in the powerband,even tough the specs are
nearly the same.My Bonito feels like driving a RBWS7,but with tons of more power.the Toro more more like a RBC6...just to compare.I have the Toro nero team engine in my Hyper 9 GL with a 6.5 mm venturi.I have the Bonito
7xlbs in one of my hyper 8.5 pros with a 8mm venturi.Except that
i use the same pipe,header,flywheel,clutch,springs and plugs
in the Bonito and the Toro
What makes them so different,??The Bonito have a much better lineare
powerband then the Toro have,but the Toro works good when it comes
to exploding take off's.
I will break down the the engine first. The Toro Nero and Bonito share about 95% of their parts. The Bonito has the physical changes to the case which include the machining on the upper block to allow room for the lowered head, extra cross sutting holes for additional cooling as the head now covers more of the case and will have a higher heat retention, the back plate has the steel ring to slow conrod wear when it walks on the pin and brushes the case from time to time. The only timing difference which will have an effect is the transfers are 2* lower than the toro which means the transfers will open later and close sooner which should give the engine more low end torque but since the exhaust port timing was not altered, it also gives the engine more blowdown timing which will give it more peak rpm so the engine may have a more linear feel.
Another thing I noticed is the venturi size. You mentioned you have a 6.5 on the toro and an 8 on the bonito. Initial engine response is not only dictated by timing, compression ratio, pipe length and volume etc but also by how fast it can build a fuel signal. The smaller and more taper the inlet has, the quicker and stronger the fuel signal builds which will give the engine a quicker response and the larger and less tapered the inlet is, the slower and smoother it builds the vortex around the needle to draw in the mixture giving it a more linear PTO.
So all in all, you have 2 different cars with 2 similar engines but they have enough differences to give them different running characteristics and the two different vehicles and venturi inserts amplifies the differences. If you want to get a fair comparison, you should run both engines with both 6.5 and 8mm inserts in the same car to see the real differences between them. You don't have enough of a control subject to give yourself accurate results. There are probably some other subtle differences between them that will also vary the results but the ones I talked about would be the big ones.
Bottom line, if you like what each engine is doing for each car, that is all that should matter.
05-09-2011 | 06:35 AM
#1039
Will this pipe get good runtime on a plus 4C in a buggy? its alot cheaper than the novarossi pipes so im thinking about it. how does it compare to the 9901 for runtime
http://www.amainhobbies.com/product_...-Hard-Anodized
http://www.amainhobbies.com/product_...-Hard-Anodized
05-09-2011 | 07:45 AM
#1040
Joined: May 2005
Posts: 5,174
From: a very small town in wisconsin that is in the middle of absolutely no where
guys come on. cant we stay on topic for once.. name calling and flamming guys is not needed.. infraction nd editing will cme later as some of use have to work a real job.. back on topic abiout nova motors.. thank you
05-09-2011 | 10:14 AM
#1041
I've gone back and deleted a bunch of posts with nothing but bashing and bickering in them.
I did not however issue infractions, because to be honest... I don't have time today.
NEXT TIME... I'll make the time.
Keep it on topic and the bickering out of it.
-David
05-09-2011 | 12:16 PM
#1042
Tech Regular
Joined: Jan 2010
Posts: 402
Ran the new BTT engine on our track first time today and I am very very impressed. Been running OS engines previously but this is the best engine Ive ever had hands down. Its just soo smooth on the throttle and it screams like nothing else on the straight.
Once it lets go completely Im gonna measure fueltimes etc.
Managed to crack a shocktower before I had a chance to put more fuel through it though but hopefully Ill have a new chance either on wednesday or saturday.
Once it lets go completely Im gonna measure fueltimes etc.
Managed to crack a shocktower before I had a chance to put more fuel through it though but hopefully Ill have a new chance either on wednesday or saturday.
05-10-2011 | 08:58 AM
#1043
Tech Initiate
Joined: Aug 2010
Posts: 37
From: Norway
The first thing I see right away is the two cars. I remember the 8.5 and 9 when my buddy was sponsored by ofna and the 8.5 was a very heavy car. It took everything we had to get that car around the track in a timely fashion. The 9 was considerably lighter and responded better to less output engines so I would start there as the main difference. I am not saying it is the only difference but it is a major contributing factor. If you get bored and want to switch the engine in each car and run it to see how each car handles each engine, that would be ideal but I wouldn't sweat it.
I will break down the the engine first. The Toro Nero and Bonito share about 95% of their parts. The Bonito has the physical changes to the case which include the machining on the upper block to allow room for the lowered head, extra cross sutting holes for additional cooling as the head now covers more of the case and will have a higher heat retention, the back plate has the steel ring to slow conrod wear when it walks on the pin and brushes the case from time to time. The only timing difference which will have an effect is the transfers are 2* lower than the toro which means the transfers will open later and close sooner which should give the engine more low end torque but since the exhaust port timing was not altered, it also gives the engine more blowdown timing which will give it more peak rpm so the engine may have a more linear feel.
Another thing I noticed is the venturi size. You mentioned you have a 6.5 on the toro and an 8 on the bonito. Initial engine response is not only dictated by timing, compression ratio, pipe length and volume etc but also by how fast it can build a fuel signal. The smaller and more taper the inlet has, the quicker and stronger the fuel signal builds which will give the engine a quicker response and the larger and less tapered the inlet is, the slower and smoother it builds the vortex around the needle to draw in the mixture giving it a more linear PTO.
So all in all, you have 2 different cars with 2 similar engines but they have enough differences to give them different running characteristics and the two different vehicles and venturi inserts amplifies the differences. If you want to get a fair comparison, you should run both engines with both 6.5 and 8mm inserts in the same car to see the real differences between them. You don't have enough of a control subject to give yourself accurate results. There are probably some other subtle differences between them that will also vary the results but the ones I talked about would be the big ones.
Bottom line, if you like what each engine is doing for each car, that is all that should matter.
I will break down the the engine first. The Toro Nero and Bonito share about 95% of their parts. The Bonito has the physical changes to the case which include the machining on the upper block to allow room for the lowered head, extra cross sutting holes for additional cooling as the head now covers more of the case and will have a higher heat retention, the back plate has the steel ring to slow conrod wear when it walks on the pin and brushes the case from time to time. The only timing difference which will have an effect is the transfers are 2* lower than the toro which means the transfers will open later and close sooner which should give the engine more low end torque but since the exhaust port timing was not altered, it also gives the engine more blowdown timing which will give it more peak rpm so the engine may have a more linear feel.
Another thing I noticed is the venturi size. You mentioned you have a 6.5 on the toro and an 8 on the bonito. Initial engine response is not only dictated by timing, compression ratio, pipe length and volume etc but also by how fast it can build a fuel signal. The smaller and more taper the inlet has, the quicker and stronger the fuel signal builds which will give the engine a quicker response and the larger and less tapered the inlet is, the slower and smoother it builds the vortex around the needle to draw in the mixture giving it a more linear PTO.
So all in all, you have 2 different cars with 2 similar engines but they have enough differences to give them different running characteristics and the two different vehicles and venturi inserts amplifies the differences. If you want to get a fair comparison, you should run both engines with both 6.5 and 8mm inserts in the same car to see the real differences between them. You don't have enough of a control subject to give yourself accurate results. There are probably some other subtle differences between them that will also vary the results but the ones I talked about would be the big ones.
Bottom line, if you like what each engine is doing for each car, that is all that should matter.
probably the cars that makes the big difference(i knew that the cars weight would make some difference but not that much.)offcourse i could have changed the engine between the buggies but the Hyper 9 GL needs a much wider flywheel.l will check out the Bonito in my Hyper 9 after i have worn out the springs in the clutch to the Toro Nero.Maybe when i have ran half a gallon more in the Bonito i can see the Bonito from another view.Sorry about giving you the wrong info about the venturi size in the Toro Nero.The only reason i use the Hyper 8.5 is to have a second hand buggy if something goes wrong, ,and its good to now that i can use either the Toro or the Bonito in booth of them(Also a reason why i asked the question)
05-10-2011 | 03:36 PM
#1044
Tech Initiate
Joined: Feb 2008
Posts: 42
From: Balm, FL
Plus 4TTS Buggy engine (Novarossi)
NIB "Plus 4TTS Buggy engine (Novarossi)"
This new engine has been updated from the already
popular 21-4 Team Edition, incorporating their usual high standards
for quality and performance making this already good engine even
better. This engine has been updated with a new cooling head and
front/rear ceramic ball bearings.
$400, free shipping paypal and money orders accepted
email for pics: [email protected]
This new engine has been updated from the already
popular 21-4 Team Edition, incorporating their usual high standards
for quality and performance making this already good engine even
better. This engine has been updated with a new cooling head and
front/rear ceramic ball bearings.
$400, free shipping paypal and money orders accepted
email for pics: [email protected]
05-10-2011 | 03:46 PM
#1045
NIB "Plus 4TTS Buggy engine (Novarossi)"
This new engine has been updated from the already
popular 21-4 Team Edition, incorporating their usual high standards
for quality and performance making this already good engine even
better. This engine has been updated with a new cooling head and
front/rear ceramic ball bearings.
$400, free shipping paypal and money orders accepted
email for pics: [email protected]
This new engine has been updated from the already
popular 21-4 Team Edition, incorporating their usual high standards
for quality and performance making this already good engine even
better. This engine has been updated with a new cooling head and
front/rear ceramic ball bearings.
$400, free shipping paypal and money orders accepted
email for pics: [email protected]
holy crap
05-10-2011 | 06:44 PM
#1048
I ran the Murnan Modified Novarossi +4BTT this past Saturday. The engine felt awesome on the track. I ended up running the 9901 pipe with the short round novarossi header, 6.5 mm ventury, and c6tgc glowplug. With 1.0 springs on the stock MBX6 clutch, the engine had too much bottom end grunt for the buggy. I switched to .9 springs, and it was better. The weaker springs made the engine easier to drive out of the corners. Top end was brutal. I could have run over the other buggies if i wanted.
The engine cleared the largest jumps with ease, and made 9+ minutes of runtime. I'm sure 10 minutes will not be a problem when it fully breaks in. The piston kept getting stuck at tdc on the starter box after 2 gallons of use, so it is definitely not fully run in yet. Temps were around 240 with a good amount of smoke. There is definitely more power, and mileage in the engine. This is one bad engine!
The engine cleared the largest jumps with ease, and made 9+ minutes of runtime. I'm sure 10 minutes will not be a problem when it fully breaks in. The piston kept getting stuck at tdc on the starter box after 2 gallons of use, so it is definitely not fully run in yet. Temps were around 240 with a good amount of smoke. There is definitely more power, and mileage in the engine. This is one bad engine!
