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-   -   NOVAROSSI Engine thread.... (https://www.rctech.net/forum/offroad-nitro-engine-forum/353301-novarossi-engine-thread.html)

DavidR 05-09-2011 10:14 AM


Originally Posted by J.Whiting (Post 9084532)
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

Yep...

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

Lilja 05-09-2011 12:16 PM

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.

Dr spoony 05-10-2011 08:58 AM


Originally Posted by PowerHouse (Post 9084244)
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.

Thanks a lot.I was wrong,i use the 7.5mm venturi in Toro and as you say its
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)

NeedAJOB 05-10-2011 03:36 PM

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]

houston 05-10-2011 03:46 PM


Originally Posted by NeedAJOB (Post 9092000)
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]

:confused: holy crap

dnebout 05-10-2011 04:06 PM


Originally Posted by houston (Post 9092036)
:confused: holy crap


No kidding! Especially after our conversations.

dnebout 05-10-2011 05:39 PM

Houston
YGPM about the Bonito

Grinder 05-10-2011 06:44 PM

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.:D 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!

"Smiley" 05-10-2011 07:28 PM

Plus 4 BTTS + 9901/41021 = Awesome combo. Hae 1/2 gallon on mine, Running awesome. Already getting 12min's, Not even fully broke in!

NeedAJOB 05-11-2011 05:54 AM


Originally Posted by houston (Post 9092036)
:confused: holy crap

quality cost! :nod:

NOVAROSSI not ofna force 26!

just sayin.....:D

houston 05-11-2011 07:49 AM


Originally Posted by NeedAJOB (Post 9094788)
quality cost! :nod:

NOVAROSSI not ofna force 26!

just sayin.....:D

My point was how cheap he was selling it for and the fact that this isn't the for sale thread

I am well aware of what these engines cost ;)

kgombe 05-11-2011 08:01 AM


Originally Posted by houston (Post 9095185)
My point was how cheap he was selling it for and the fact that this isn't the for sale thread


I am well aware of what these engines cost ;)

i dont think he knows who you are... lol...

NeedAJOB 05-11-2011 10:49 AM

I dont know him, should I be AFFRAID?:eek:

just selling a MOTOR, not tryin to get in a KEYBOARD fight!

But, it is what it is. (theirs always one!)

rdeppen 05-11-2011 10:58 AM

Always have to start trouble don't you?? I'm knock your punk A*& out next time I see you.........:mad::weird:

houston 05-11-2011 11:31 AM


Originally Posted by NeedAJOB (Post 9096036)
I dont know him, should I be AFFRAID?:eek:

just selling a MOTOR, not tryin to get in a KEYBOARD fight!

But, it is what it is. (theirs always one!)

Huh?

kgombe 05-11-2011 11:45 AM

my bad

NeedAJOB 05-11-2011 12:58 PM

Again, im selling a motor and thats it, all of your oral copulation that your giving this guy is none of my businees nor do I care.:lol:

I will not loose any sleep over not selling the motor or your useless comments.

again, theirs always one!




Hey, LIL-deppen beat it sucka!

starting trouble? just tryin to move a motor at a decent price, thats all and as always some "CHUMP" gotta put his .02 in.:sneaky:

kgombe 05-11-2011 01:31 PM


Originally Posted by NeedAJOB (Post 9096614)
Again, im selling a motor and thats it, all of your oral copulation that your giving this guy is none of my businees nor do I care.:lol:

I will not loose any sleep over not selling the motor or your useless comments.

again, theirs always one!




Hey, LIL-deppen beat it sucka!

starting trouble? just tryin to move a motor at a decent price, thats all and as always some "CHUMP" gotta put his .02 in.:sneaky:

ummh sorry boss...:weird:

Chad Millikan 05-11-2011 01:38 PM

I come on here to learn about this hobby, not to read all your guys bickering and BS. PM each other if you want to keep taking shots at each other.

kgombe 05-11-2011 01:43 PM


Originally Posted by Chad Millikan (Post 9096769)
I come on here to learn about this hobby, not to read all your guys bickering and BS. PM each other if you want to keep taking shots at each other.

my apologies to you

PinoyCali 05-11-2011 02:27 PM

Pipe
 
Hello All,

Im getting bonito this week I have 3004 pipe.

Is this good pipe/combo?

Thanks

houston 05-11-2011 03:20 PM


Originally Posted by PinoyCali (Post 9096961)
Hello All,

Im getting bonito this week I have 3004 pipe.

Is this good pipe/combo?

Thanks

3004 is fairly restrictive but will yield great runtimes and good torque

hope this helps

hopefully everybody can back on track ;)

GMS_Racing 05-11-2011 06:01 PM

im running a btt in my buggy..is everyone sticking with the 6.5mm restrictor??

desotoracing 05-11-2011 07:35 PM


Originally Posted by PinoyCali (Post 9096961)
Hello All,

Im getting bonito this week I have 3004 pipe.

Is this good pipe/combo?

Thanks

We recommend the 41021 header with the 9901 (51016). For more mileage use the 2084 (51018).

"Smiley" 05-11-2011 07:43 PM

The BTTS in a buggy, Yes 6.5 and 9901/41021. More top needed, Use the 2084. :nod:

desotoracing 05-11-2011 07:44 PM


Originally Posted by GMS_Racing (Post 9097907)
im running a btt in my buggy..is everyone sticking with the 6.5mm restrictor??

We've used the 6mm, 6.5mm & 7mm depending on track conditions.

Leedog 05-13-2011 07:02 AM

:)

ben73 05-16-2011 09:35 PM

I have a couple of 21-4 engines and they have both been supplied with 28026 buttons which i replace with turbo button 28002.

I just got a 21-4C and it has a 28002 button included as standard with a turbo glow plug C6TGC. And I also picked up a 21-4C Team engine and it has a 28028 which is listed standard button also however on the exploded view it comes with a turbo C6TGC glowplug. Can anyone shed any light on this?

anyone know why there are differences across the 21-4 range?

PowerHouse 05-17-2011 05:08 AM


Originally Posted by ben73 (Post 9122629)
I have a couple of 21-4 engines and they have both been supplied with 28026 buttons which i replace with turbo button 28002.

I just got a 21-4C and it has a 28002 button included as standard with a turbo glow plug C6TGC. And I also picked up a 21-4C Team engine and it has a 28028 which is listed standard button also however on the exploded view it comes with a turbo C6TGC glowplug. Can anyone shed any light on this?

anyone know why there are differences across the 21-4 range?

Mostly marketing would be my guess. How do you take the same product with complete interchangable internals and continueally raise the cost and maintain interest? By making suttle changes to make it sound new and state of the art when in reality it is the same old design with a new twist. It doesn't mean it doesn't work well because it sure as heck does. It just a way to keep people interested in a product without spending loads of money to continually redesign the entire engine model after model. It wouldn't be very business saavy to do that. Not in this industry when there are so many engines and so many people who jump around engine to engine. So they jazz up the older one a little, make it sound sweet and bam, new engine trend. As far as why your engines come with different buttons, the 28002 turbo is for the original head height and the 28028 that comes on the team is for the head that was lowered 3mm so they increase the head button thickness to keep the cooling head from interferring with the case fins. They did the same on the Toro Nero as well. Same internals with a lowered head and rear ceramic and you have the Team version which sparked a surge of sales because people wanted what they thought the pros had. It is good marketing on Novarossi's side. Minimal changes to keep production costs down while gaining maximum profits while still maintaining interest.

houston 05-17-2011 07:39 AM


Originally Posted by PowerHouse (Post 9123595)
Mostly marketing would be my guess. How do you take the same product with complete interchangable internals and continueally raise the cost and maintain interest? By making suttle changes to make it sound new and state of the art when in reality it is the same old design with a new twist. It doesn't mean it doesn't work well because it sure as heck does. It just a way to keep people interested in a product without spending loads of money to continually redesign the entire engine model after model. It wouldn't be very business saavy to do that. Not in this industry when there are so many engines and so many people who jump around engine to engine. So they jazz up the older one a little, make it sound sweet and bam, new engine trend. As far as why your engines come with different buttons, the 28002 turbo is for the original head height and the 28028 that comes on the team is for the head that was lowered 3mm so they increase the head button thickness to keep the cooling head from interferring with the case fins. They did the same on the Toro Nero as well. Same internals with a lowered head and rear ceramic and you have the Team version which sparked a surge of sales because people wanted what they thought the pros had. It is good marketing on Novarossi's side. Minimal changes to keep production costs down while gaining maximum profits while still maintaining interest.

Wow , serious?
so the full cnc "team" piston is just a marketing ploy?


There is a little more to it than what is described above and many of the changes made to th novarossi engine line up are actually upgrades for the better ;)

While I do agree with mark to a certain extent, there is more to it than that :nod:

PowerHouse 05-17-2011 12:00 PM


Originally Posted by houston (Post 9124158)
Wow , serious?
so the full cnc "team" piston is just a marketing ploy?


There is a little more to it than what is described above and many of the changes made to th novarossi engine line up are actually upgrades for the better ;)

While I do agree with mark to a certain extent, there is more to it than that :nod:

Alright so I forgot to mention the piston and while it may add some strength and some increased longevity, it isn't like the engine goes from "Eh, it's alright" to "OMG this thing is awesome". I have run every Plus 4 they ever made and all of them ran very similar to each other. While there have been a few changes here and there, none of them by any means for the worse, there hasn't been this revolutionary movement of the Plus 4's either. They have added some ceramics along the way and they went from a cast to bar stock billet on the piston and they lowered the head a little blah blah blah, but case in point is the $250 original Plus 4 is still very competative with the new $400+ BTT versions. So if someone has a limited budget, they shouldn't have to feel inferior to the newer models. They are all very good and run strong. The billet piston tends to hold up better to abuse so that is worth a few bucks but other than that, not to much else will matter much. The ceramics are ok but not needed as the stock steels have always held up great and the new front ceramic that raises the cost even higher still leaks like the stock steel did so you still end up with grit and debris inside the engine within the first gallon or two so how much is it really worth????

Some people have had good luck with it but I have personally serviced dozens of stock engine with stock fronts after 3-4 gallons and most of those engines had a nice coating of black grit all over the inside of the engine and not too many of them were saveable and these same guys thought the stocker was a good bearing and thought it would go alot longer without service but they learn the hard way that bearings with seals on the outside whether one seal or two have a positive lip and that allows penetration. I personally use double shielded oppossing seals and get no less than 4 gallons out of them with a squeaky clean inside and have been using them for years with that same success. Once in a great while you get one that isn't as good as the others but they seem to be far and few. To each their own but this is what I see first hand all the time and I do my very best to look for the customers pocket book as I'm sure most other engine guys do. I'm not saying the bearings I use are the end all be all but I certainly have not had luck with the stockers and I certainly wouldn't pay even more to get the same bearing with ceramic balls in them so they can sh#t the bed just as early and ruin my engine way short of it's life expectancy. No Thank You

am 05-17-2011 12:55 PM

Well, for me the new front BB in the + series of engines is by far the best front BB out there. I hve started using them instead of TKO bearings and original OS bearings.

As for the rest of the engine, i agree that for the guy on a budget, the 2010 team is the best bang for the buck out there today. The new BTT feels like it has more grunt out of the box. I have not messured that engine yet, so if they have changed some timing i am not shure of..

houston 05-17-2011 03:13 PM


Originally Posted by am (Post 9125474)
Well, for me the new front BB in the + series of engines is by far the best front BB out there. I hve started using them instead of TKO bearings and original OS bearings.

As for the rest of the engine, i agree that for the guy on a budget, the 2010 team is the best bang for the buck out there today. The new BTT feels like it has more grunt out of the box. I have not messured that engine yet, so if they have changed some timing i am not shure of..

i feel the same way and with ceramic balls installed in the 17011 front bearing the clearances are tighened up a little which has made for a better sealing bearing that lasts longer :nod:

novarossi products are of the highest quality and i will continue to support them as long they remain as such :nod:

PowerHouse 05-17-2011 03:40 PM


Originally Posted by am (Post 9125474)
Well, for me the new front BB in the + series of engines is by far the best front BB out there. I hve started using them instead of TKO bearings and original OS bearings.

As for the rest of the engine, i agree that for the guy on a budget, the 2010 team is the best bang for the buck out there today. The new BTT feels like it has more grunt out of the box. I have not messured that engine yet, so if they have changed some timing i am not shure of..

The only difference with the new one other than the obvious is the exhaust port has been reshaped a little. The timing specs are the same as all the rest of the plus 4 family. The piston, rod, case, crank, case internal, bearings, head button etc are the same as the 4c team. What you may feel with the btt is maybe a little more initial pop with the exhaust port being wider at the top. It allows for more initial blowdown which would give it a stronger feel on the bottom but as far as timing specs, it still remains plus 4. I have several guys running them and it is a split. Some guys feel the btt is a little stronger on bottom and some feel it is on par with the other versions so it comes down to setup as to how it will feel in general.

I also agree that novarossi makes a great product and I will also continue to carry and use them as long as the quality remains near the top as they have been for years.

ben73 05-17-2011 04:08 PM


Originally Posted by PowerHouse (Post 9123595)
Mostly marketing would be my guess. How do you take the same product with complete interchangable internals and continueally raise the cost and maintain interest? By making suttle changes to make it sound new and state of the art when in reality it is the same old design with a new twist. It doesn't mean it doesn't work well because it sure as heck does. It just a way to keep people interested in a product without spending loads of money to continually redesign the entire engine model after model. It wouldn't be very business saavy to do that. Not in this industry when there are so many engines and so many people who jump around engine to engine. So they jazz up the older one a little, make it sound sweet and bam, new engine trend. As far as why your engines come with different buttons, the 28002 turbo is for the original head height and the 28028 that comes on the team is for the head that was lowered 3mm so they increase the head button thickness to keep the cooling head from interferring with the case fins. They did the same on the Toro Nero as well. Same internals with a lowered head and rear ceramic and you have the Team version which sparked a surge of sales because people wanted what they thought the pros had. It is good marketing on Novarossi's side. Minimal changes to keep production costs down while gaining maximum profits while still maintaining interest.

thanks - so what turbo button should be used on the team engine that came with the 28028?

houston 05-17-2011 05:03 PM


Originally Posted by ben73 (Post 9126289)
thanks - so what turbo button should be used on the team engine that came with the 28028?

The team head and the 28028 head button go together, you just can't use the team head with the 28002 , 28023 or 28026 combustion chambers


Hope this helps

aussies1129 05-17-2011 10:54 PM

earlier in the year I bought a +4 from amain and the description said turbo head etc etc but when it arrived it was a standard head?? amain sent me a turbo button but there is some confusion on what is turbo and what is not? they should of done them all turbo and be done with it, and who runs a standard plug these days when you can get turbo odonnells for under $5.
cheers

ben73 05-18-2011 07:03 AM


Originally Posted by houston (Post 9126510)
The team head and the 28028 head button go together, you just can't use the team head with the 28002 , 28023 or 28026 combustion chambers


Hope this helps

so is the 28028 a turbo button for the Team engine?

with my plus 21-4 engines I install the 28002 turbo buttons and use the turbo plug.

houston 05-18-2011 07:21 AM


Originally Posted by ben73 (Post 9129473)
so is the 28028 a turbo button for the Team engine?

with my plus 21-4 engines I install the 28002 turbo buttons and use the turbo plug.

The combustion chambers mentioned will all fit in each different engine but you need the 28028 in order to use the more recessed team head .


Hope this helps

PowerHouse 05-18-2011 07:24 AM


Originally Posted by ben73 (Post 9129473)
so is the 28028 a turbo button for the Team engine?

with my plus 21-4 engines I install the 28002 turbo buttons and use the turbo plug.


The 28028 is thicker and uses the orange outer oring to keep the dirt and grit from getting into the sleeve/case lange that can create removal issues. You can use the 28028 on the older engines, the cooling head just sticks up higher in the vehicle but you can't use the 28002 on the team head as it will interfere with the case unless you machine down the cooling fins on the upper case to allow clearance.


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