I have seen this ”war” between different engine modder before and what it all boils down to is some simple facts. Every engine is a compromise, you can´t build an engine that will win dragrace and still make 10+ minutes and last 10ga and the opposite is also true.
All of those that mod engines have to make compromises and everyone make their compromises at different places and if it works they (well, at least many of them) assume that everyone else is doing it wrong. That is about as much true as that Novarossi wouldn´t know hove to make the same engine mods that many on the aftermarket does, all that can be done is shift compromises to different places and thereby come up with a slightly different engine then when it left the factory.
The only thing that can be done to improve an engine from a good company like Novarossi without altering the compromises they have made is to make subtle flow mods and make a “blueprinting” to what/where you are going to run your engine, this cost too much to be worth doing in full production at the plant and is practically impossible considering all the different places/cars/fuels etc these engines end up seeing.

In the end I think there is enough room/market for all good people that supports their customers and I wish you all good luck!

Well I found this thread and thought it would be a good place to ask a question about my novarossi. I bought a buggy and it came with this motor. I knows its a .28 but thats about it. could someone identify this exact model Nova so if i ever need to get parts I can know which ones to get. I havent ran the motor yet because the buggy needs some parts first but this motor should fire, its has alot of compression and its not gummed up or anything. It has what appears to be JB weld in between the block and the carb for some reason, not sure why.

I would love to see a motor to motor pinks all out on street as friendly competition that would be a blast.

See that's what I'm saying. That would be so much fun.

Or you could buy engines from both guys, like I did, and make your own decision.

Hard to tell exactly without having the engine in hand. However the engine appears to be one of the first gen Novarossi 528X engines. Very powerful engine, with tons of torque and speed. You can obtain the manual from RCdocuments.com, go to Novarossi and there's a PDF you can download for the engine.

As far as the JB Weld...it's anyone's guess but I suspect the case mightve been cracked in that location. I agree with you, fuel it up and rip it.

What motor are you running now?

Thanks for the info. Also, this is my first higher end buggy engine. What would be a good glow plug for this motor and what % nitro do these engines like to run on?

I think that might be a epoxy sealing of some sort. Prevent air leaks. It should come off pretty easily if it's anything like someone used one of mine. Is it still soft or rock hard?

CRE Nova's.....but the FM X3 is nice.

Im pretty sure its jb weld and its rock solid. Im guessing the previous owner cracked or damaged somehow and did a cheap fix but it doesnt leak one bit. I sure hope it will fire up when I get the chance too.

Don't let just anyone stuff your crank.....

I believe the 528x was strictly a turbo plug engine. The Novarossi C6TC is the OEM glow plug for that engine. Fuel is up to you, most racers prefer 30%, though you can use 20-30% nitro. Last season I started using VP Powermaster fuel, they have many different blends to fulfill a wide range of applications from race fuel to sport fuel. Great stuff!

Anyone on-line that can help me out?!??!! I just got my first New Novarossi (I am kinda a newbie) I have a Bonito. I am putting it on my Losi Eight-T 2.0
#1: Collet??? Use the one that came with the Engine...or the Losi??
#2:Clutch shimming, Is the ANY differences I need to do shimming wise than the original (starting out I had a RTR its about a month old but EVERYTHING has been changed now finalizing it with a Bonito)
#3: I just got in the Quick change engine mount (Losi) and put the 2 pieces on the engine, tightened them down, the went to just look at it on the mount base (un-installed) and the Top block is about 1mm or LESS than 1mm too wide to fit into the locating pins!!?? AHHH...any ideas????
THANK YOU FOR THE HELP!!!

ALSO...the screw on the end of the crank that holds the clutch bell on...use the Novarossi or Losi one???? the Losi one looks to go well with the washer because its concaved