I'm going to have to double check that but it seemed good when installed, had a little play maybe not enough.

Thanks for the suggestion. I guess if it was the piston hitting it would be consistent.

Thank you Roelof,
You called it. Flywheel is tapping clutch bell at times.

mephisto gt5 on left os xzb speed II or right
https://cimg7.ibsrv.net/gimg/www.rct...7a3388b35f.jpg
https://cimg2.ibsrv.net/gimg/www.rct...df988dfe72.jpg
https://cimg3.ibsrv.net/gimg/www.rct...9ffc355227.jpg
https://cimg5.ibsrv.net/gimg/www.rct...7956ce8397.jpg
https://cimg8.ibsrv.net/gimg/www.rct...7f789d9808.jpg

Hey, haulinbass, between those 4, is there a big difference in power and run time? Specifically 41001 vs 41032.
Thanks

without knowing what engine its really hard to answer that, basically a shorter manifold makes more power as long as your engine has the timing to support it, conicals are the same but to a more extreme degree. longer manifolds choke off the top end slightly shifting powerband lower and creating a wider torque peak. obviously you go too long and you basically make no power but youll make it everywhere. with too short with too little timing it will get on the pipe quick and fall flat right at peak torque not allowing a good rev out or the torque peak will be so narrow and top end focused to even reach peak torque.
my favorite nova header is the 41033

I have the Rolling and a 9901 pipe

id go with the 01 or 33. I ran the 33 with 9901 on my rolling in truck

My first Nova engine, a P5XLT, tossed a wrist pin clip on Saturday while idling on the starter box. This was at about 1.5 gallons. I had never disassembled the engine. My research about wrist pin clips popping out came up short, even shorter when trying to find instances of that happening to Novarossi engines in particular, which lead me to chalk it up as being just a freak shot of bad luck. Outside of that problem, the engine was great and always started quick and didn't give me any issues, so I wanted another Nova.

Tried to buy an Elite 5, but Nova Direct emailed me back saying they were out of stock and offered a Bonito 21XLB Limited with an EFRA 2084 pipe for $189 + shipping, so I took that not knowing much about them, figuring all Nova engines are good. The only other pipe I have is the Dynamite 053MR I've been running so far, which I guess has been fine.

It arrived in the mail yesterday, and I was surprised to see that it didn't come with mutiple carb inserts/venturis. Pictures online and the included exploded view sheet (dated 18-09-2019) seem to make it appear like they're supposed to come with 4 different inserts, or at the very least more than just 1 already in the carb. All mine has is the silver machined guy in the carb throat with the knurled lip. Seems like that triangle pocket in the corner of the engine plastic wrap with the big Novarossi logo would be where the carb inserts would be packaged. All mine has in that space is 2 different sized washers. The cooling head color/graphics look different than all the pics of Bonitos I've seen (maybe that's part of what makes it "Limited Edition"?). Am I missing anything?

any novarossi that says "limited edition" are old stock parts that could have been sitting around for 10+ years. Some could be old stuff they used to OEM for other companies(RB,MAXpower etc) some could be old piston and sleeve sets from the p5 circa 2005 with a crank from an fms 21-7 and the block from a btt. even the GT5 that i posted a bit ago in this thread is the same piston and sleeve set(but un"modified")from the ielasi hummer evo2. Its a good way to get rid of old stock and practically killed the asian engine brands besides OS

Limited edition
 

What color was the head ? Purple ? Orange ?

Is it this

https://www.absolutehobbyz.com/novar...-bearings.html

im guessing its this one

Couldn't reply till now because of 5 post / 24h limit Lol but yes ^that's^ it, the white headed Bonito. Hopefully this repainted old stock garbage will hold together for a few gallons as I make the turn marshals blow past their Fitbit goals with flying colors.

well my silver head "limited edition" karma has 8+ gallons and has literally never flamed or stalled once, not bad for old stock. the biggest problems with the limited editions is they tend to come with the carbs no one wants. Throw the carb from your p5 on it if you still have it and run your 053 pipe.

Right on. From what I can tell, my P5 is specifically the P5XLT and not the P5XLT/16 or the P5XL. The engraving on the bottom reads 0587/14. Is the 14 indicative of manufactured in 2014? The new Bonito reads 0885/19.

Browsing the Out-of-production engines page on Novarossi's website, and comparing the 3 different P5's there is what leads me to believe mine's the P5XLT since the crank case is black, the crankshaft doesn't have a silicone ramp, the carb is the normal reverse style and it has no midrange adjustment screw. If that's correct, then the exploded view sheet shows it's a 24063, which I'm hoping is the better carb you mentioned rather than the 24069 that the new Bonito's exploded view sheet shows it has.

if the bonito comes with the 069 carb thats the one i prefer

mephisto opinions
 

Thinking about a mephisto, currently have a mito 4 and p5. Haven't seen too much on it in this thread...any thoughts/opinions/experience with this motor? Thanks

From what I can tell, my Bonito's needle tip will fully exit the jet at WOT, but my P5's won't. Don't know if that's just a product of different LSN settings, or if that's part of the assembly differences that coincides with one of these carbs being the preferred model over the other.

i really liked my mephisto.. the manta is the same motor just no dlc crank.. same internal parts.. both ran really good for me when i ran them.

I am currently running a Nova Rolling w/ a 41021-9901 header pipe combo in my truggy. I found a 2096 that I forgot that I had. What will the 2096 do for the Rolling with the 41021 header.

should give you more top end but will loose a bit on the bottom end

So is it 1.5 or 1.25 turns on the D screw?
https://cimg7.ibsrv.net/gimg/www.rct...554be70b80.jpg

i have found the needle seat adjustment to work best at 2.25 turns from all the way in .... this allowed much more usable adjustment of the low speed needle ....... mush less finicky and stayed more consistent .....

hope this helps

Mito 7 or rolling?
 

It’s for a truggy. Seem pretty similar, any body know any differences?

i ran the rolling in my truggy and really like it.. both are long stroke engines with very similar specs. either will be just fine

I am wondering why the rolling says tuned crankshaft but the mito is more expensive. Strange.

Is the mito 7 you’re looking at with ceramic bearings? That would definitely increase price.

I also have a rolling and am very happy with it. Even during breakin and initial tuning plenty of power while rich.

Don’t know first hand but I’ve also read that the mito line didn’t have the life span of most Nova engines.

If you’re looking to buy a new Nova check out Cosmopro on eBay. He sells them at great prices and ships super fast.
I ordered both my Rolling and Mantra from him and got each of them 2 days after sale.

I am also running Virtus and rolling, basically the same engine with different bearings.
I am very happy with them, great bottom, great top! Overall perfect. I have 3x virtus and 3x rolling that I run them all in truggies!

All steel bearings, not a fan of ceramic.

Hi guys, anyone knows why the mantra is out of production?

Got my new Bonito broken in for the most part. Installed a Buku front bearing cap on the engine right out of the box. Had some difficulty with it priming, and before I figured out what it was, I removed the 7.5mm venturi that came in the carb to set the idle gap to 0.6mm and never put it back in. The fuel supply issue wound up being the dark Tekno fuel line included in the NB48 2.0 kit. Robbed the thicker light color line from my old Losi RTR and now it primes up and pulls fuel like it should.

The Bonito screams. I expected it to be about the same power as my old P5 since I'm using the same Dynamite 053MR pipe/header setup that I used on that P5, but it's significantly better power all around with the Bonito. Haven't timed it for fuel mileage and don't know how much it'll change power/mileage if I put the 7.5mm venturi back in.

Have no clue why bc this little thing screams.
If you want to buy one I think the guy I got mine from on eBay still has. They come new in box straight from Italy. Great prices and super fast shipping.

I have probably close to a gallon on mine now with 4 days of track time and one track has a straight close to 100’ long and she screams down it and doesn’t even sound like she’s hitting peak power until the last 10’.

I think I have to lean her out more. She’s creating amazing power low and top but I did a few full throttle rips away from me and back for about 40’-50’ each way like 5-6 times and checked temp and it was only at about 180*F and it was 70*F sunny

There was a 2020 version listed. The eBay seller that had them is out of stock on a lot of engines. Hopefully he will get more soon.

Hello all, I have a rolling in my buggy with a 41021/9901. It actually runs really good. Good bottom, good top, but it seems a little thirsty. Haven't timed it, I'm guessing it's around 9 minutes and then dry.

My question is has anyone tried a 41021/2135 on the rolling?

what Venturi are you using? My rolling with 41021/9853 6.5 Venturi can do 10mins every time I hit the track

I have a 7mm Venturi, I wanted to let it eat lol. The track had a lot of wheel spin and is pretty high speed. Lots of full throttle. I am sure that is a factor. I plan on going down to a 6.5 or 6 as the motor has ample power in buggy.

​​​​​​I just have a 2135 and will end up trying it. Curious on pro's/cons. Fun motor for sure .

My guess is to make you buy a mephisto if you want the square stroke novarossi. They are almost the same engine. The difference that I see is dlc crank, 3 needle carb, and cooling head on the mephisto .

Thanks all you guys for the answers.

jpz_67, are there any advantage on square stroke engines over the long ones?

Absolutely there is. I ran a lot of engines over the years. Square stroke engines are so smooth and linear.
I can drive better when I have more control over my buggy. A smooth power band makes this much easier.
The rolling was not ballistic compared the the mantra but it did have more wheel spin and required easier throttle inputs.
Of course it did have more power everywhere. I mainly bought it for when I go to a larger track or when I want a bigger smile on my face. :)

Novarossi bx3
 

I’m breaking the engine and seems to have plenty of power for a buggy I have ran some novarossi in the past and liked them any body have any thoughts on this engine