I WAS WONDERING IF ANYBODY HAD ANY PROBLEMS WITH THE ROSSI -45 AND WHAT THEY THINK OF IT. IS IT WORTH THE MONEY DIFFERENCE FROM A TT-PRO46? LARRY

You will most likely get more enjoyment from the Thunder Tiger. They are considered to be a set it and forget it engine.

If you are into racing and need all out power and speed, then get the Rossi.

Typically, racing engines are tempermental and a lot of trouble. They don't throttle well. Typically they quit when throttled back after running wide open. If you were an experienced perfectionist and needed a racing engine, then you and the Rossi would get along just fine.

Enjoy the TT,

Jim

W8ye always speak the truth-

The Rossi while very powerful, is also temperamental...Where the TT is a screamer that need little attention once dialed in-

What are you flying and what is your experience level with engines and tuning?

Take it easy,
james

Well my Rossi 45 must be very different to the others then. I run zero nitro fuel, never blown a plug, it starts first flick and runs just beautifully. They're not a racing engine as such but an excellent "sports" engine. Sure, they'll rev like crazy if you prop them down but used as a sports engine...not a problem! They do need the muffler end supported though as the instructions say.

Hi!
The Rossi a racing engine...???? Well any engine could be a racing engine, even TT and OS !! But do you mean by that that racing engines are temperamentful ?! Some maybe ....but certainly not the Rossi!!
Treated well using low nitro fuel (5%) it works as well as any other sport engine.

Regards!
Jan K
Sweden

The modern Rossis aren't actually the cranky race engines they used to be. Sure, they have those too, but not only.

we run several rossi's they are in the 2/s class the best allround engines we have, in quality, durability, easy operation, throttle response even on engine sensitive fun fliers we use them and a plus they run only low nitro(cheaper). and last the rossi power!!!.
we have also many other engines like k&b,os,webra,picco,saito, st, tt,sc,asp,moki and magnum and still the rossi's stand out. so to make a statement like this when we have so many good engines.

RAZOR, THIS IS FLYFREE, IM PUTTING THE ROSSI-45 IN THE F-4 PHANTOM LIKE I HAVE BEEN TALKING TO YOU ABOUT,IM FAIRLY NEW TO PLANES BUT I HAVE 3 OS-40LA, 1 OS61FX 1 OS46FX THE 46 IS INVERTED A LITTLE DIFFERENT, AND A TT-46 IM WORKING ON NOW AND THEY ALL RUN REAL WELL. WILL I HAVE ANY PROBLEMS WITH THE ROSSI-45?I DIDNT KNOW THEY RUN ON 5% NITRO, I HAVE ALOT TO LEARN I GUESS DO YOU HAVE TO ADJUST THEM ALL THE TIME? I WANT THE POWER BUT NOT THE HEADACHE THANKS GUYS LARRY

I have had very good luck with a Rossi. The only thing is it likes low nitro, Enya #3 glowplug and lots of RPM's.

I must be the lucky guy to have 8 Rossi engines and no problem.
Got at leat 8 Rossi engines for boat, plane, car.
None of them failed before.
The only problem is that each engine last too long and I can't change to new engine.
Rossi engines are quite reliable, I am using R5~R8 plug, 15% (max) Nitro.
I also have compared JP racing REX, JP Novarossi, Rossi last longer then those "Top" engines, but with slightly less rev.

Jacky

bingo!!! we have several and have never, never had a single problem.

IT LOOKS LIKE IM STAYING WITH THE ROSSI-45, THE ROSSI SOUNDS SO GOOD I MIGHT TAKE OUT THE OS61FX THATS IN MY 4*60 AND PUT IT IN MY MUSTANG, AND PUT IN A ROSSI!!!!!! THANKS GUYS LARRY

I've been running a .45 for about a year and a half now,
it still has the same plug in it that it came with. It's not
fussy on the needle, and has never quit in flight....except
for running out of fuel.

It's also the only engine I've ever had that exceded the
specs....it calls for 16,000 revs....mine turns 18,000.
I've never used anything but Powermaster 5% in it.

I have both the Rossi 45 and TT 46. Neither one is tempermental and they both run really well. I'd say either engine is a good choice. The Rossi is a bit heavier and more expensive, but also a bit more powerful. I piped my Rossi and run it on a Quickee, the TT is on my sweet stick 40. I love both engines. Bang for buck would be the TT.

I have had a Morris (Rossi) 45 for about 2 years I run it on a GP F15 and it screams. I don't know where they are coming from when they say they are tempremental, because mine sure isn't, it starts easy and takes very little to no adjustment. I have also had 5-6 TT pro 46's and have loved them all, for the money they are the greatest. It all depends on what you want- the Rossi definately has more power and revs higher but $$$???

The new Rossi's are very fine engines, but they do like to rev... They're not racing engines, but the .45 will perform excellent on a good pipe at 16-17K rpm.

Without a pipe, still a good engine, but that's not really what they're made for... a friend of mine has got one on a Midwest SuperHots, but then scaled down to .40 size from my plans... It hauls *$$ This guy learned to fly on this thing (he put it in a bush the first time he flew it, after I had taken off the plane...I did'nt have the chance (time) to take over... I did the maiden for him. My Super Hots had a ST .90 on it with a 15-6 prop and was a prop hanger... but his was a speed plane: I was impressed with the speed that plane developped with that engine... The Super hots has a really thick wing...

To keep the story short: if you get yourself a good (full) pipe on that Rossi it will be a fine engine... throttles very good... response to the power stick is excellent... whip crack acceleration. You will enjoy it... and remember it does not need (or even like) high nitro fuel...

Also, most european "hot engines" have high compression to perform well on low nitro fuel: because that stuff costs a bundle here. I just ordered from a cheap supplier and the stuff cost me about 20$ per kg... put a Rossi #5 plug (cold one) in the engine and add 5% nitro to improve idle with the cold plug... maybe a Rossi #4 if the weather is really cold (but then it has to be freezing really hard)..