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NEW AXE ROSSI 45 ENGINE, 5 PORT, TUNED SILENCER 233R45L - 10/1/2009 6:42 PM   
gsalort1978


 

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From: buenos aires, ARGENTINA
Status: offline 		NEW AXE ROSSI 45 ENGINE, 5 PORT, TUNED SILENCER 233R45L
AXE Rossi 233R45L High Performance with Large (10mm I.D.) Carburetor, 5 Port Sleeve, ABC R/C Airplane Engine with the 4015 Tuned Silencer, Standard Glow Plug and Instructions. This engine has a new crankcase design with bolt through holes for mounting the muffler with 37mm distance of the muffler mounting screws center that is same as the OS Max 46 engine.

This Rossi 45 comes with a large 10mm inside diameter carburetor, 5 Port Sleeve for high performance instead of the standard 8mm carburetor for fuel economy and the 3 Port Sleeve. The carburetor neck outside diameter is 16mm. Engine Bore is 22.4mm, Stroke is 19mm. The crankshaft thread is 8mm x 1.25.

Rossi engines come with 3 year warranty against any manufacturing defect.

This engine is specified for 2.2 Horse Power at 25000 RPM.


HELLO PEOPLE
I WANT TO KNOW YOUR OPINION ABOUT THIS ENGINE, DO YOU KNOW THAT IT CAN RUN AT 25000 RPM 2.2 Horse Power...?, IS BETTER THAN A JETT FIRE ENGINE ?
COST U$S 195.00 AND A JETT COST 275 WHITOUT MUFFLER AND RUN AT LESS RPM (SJ .46 R/C with muffler 16500 RPM 10X 6 PROP).
WHICH IS ESASY TU TUNE OR OPERATE?, I HEARD THAT ROSSI ARE DIFICULT TO TUNE AND ARE HEAVIER THAN THE OTHERS BRANDS.
WHAT ENGINE WILL YOU CHOOSE?
I LOVE EXTREME SPEED PROP PLANES LIKE DIAMOND DUST, SCREAMING DEMON, PATRIOT, ETC

REGARDS.

GABRIEL.

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RE: NEW AXE ROSSI 45 ENGINE, 5 PORT, TUNED SILENCER 233... - 10/1/2009 6:56 PM   
estradajae


 

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Status: offline 		I really doubt it will turn 25.000 rpm...and I also think that the props you can get around there are not safe at 25.000

The power at the rpms settings given by manufacturers are made on the dynamometer, and this numbers are almost impossible to replicate with an engine with a prop and on a plane....

Dub Jett does not publisch the hp figures of his engines, he says it does not make any sense.... Giving a RPM number with a prop make etc, is a real number and can be used for comparison.

Unfortunately I have none of the engines, but the engines should be close in power, rossi engines have been high performance competition engines....

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RE: NEW AXE ROSSI 45 ENGINE, 5 PORT, TUNED SILENCER 233... - 10/1/2009 8:22 PM   
djlyon



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Status: offline 		I have the Rossi 45 5 port . Good motor. Much more power than the average sport 45. Heavy about 3 ozs more than sport jett. I don't have a sport jett so I can't compare power. The Rossi is easy to tune and very nice running. But if you just want to go fast with your Diamond dust and use a Rossi get the 53 with the VP mods. I have Rossis 40s, 45s and 53s. They are all good.

Denis

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RE: NEW AXE ROSSI 45 ENGINE, 5 PORT, TUNED SILENCER 233... - 10/2/2009 6:10 PM   
jaka


 

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Just a good sport engine! Nothing more. Racers gave up on Rossis decades ago.
The Nelson or JETT play in a different league

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RE: NEW AXE ROSSI 45 ENGINE, 5 PORT, TUNED SILENCER 233... - 10/3/2009 1:01 AM   
stg61abc


 

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From: So Paulo SP, BRAZIL
Status: offline 		Hi, in anyway the Rossi is a great engine, and if treat it half decently, it will last you almost forever.
With the HP carb (10 mm) i supose that will be necessary a fuel pump, to give you a good fuel draw. Please check with your dealer first
25 K I really doubt, but I estimate a possible 17.5 to 18 k or better with a good racing prop
good luck

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RE: NEW AXE ROSSI 45 ENGINE, 5 PORT, TUNED SILENCER 233... - 10/3/2009 1:15 AM   
Sport_Pilot



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RE: NEW AXE ROSSI 45 ENGINE, 5 PORT, TUNED SILENCER 233... - 10/3/2009 2:13 AM   
Broken Wings



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quote:

ORIGINAL: gsalort1978

NEW AXE ROSSI 45 ENGINE, 5 PORT, TUNED SILENCER 233R45L
AXE Rossi 233R45L High Performance with Large (10mm I.D.) Carburetor, 5 Port Sleeve, ABC R/C Airplane Engine with the 4015 Tuned Silencer, Standard Glow Plug and Instructions. This engine has a new crankcase design with bolt through holes for mounting the muffler with 37mm distance of the muffler mounting screws center that is same as the OS Max 46 engine.

This Rossi 45 comes with a large 10mm inside diameter carburetor, 5 Port Sleeve for high performance instead of the standard 8mm carburetor for fuel economy and the 3 Port Sleeve. The carburetor neck outside diameter is 16mm. Engine Bore is 22.4mm, Stroke is 19mm. The crankshaft thread is 8mm x 1.25.

Rossi engines come with 3 year warranty against any manufacturing defect.

This engine is specified for 2.2 Horse Power at 25000 RPM.


HELLO PEOPLE
I WANT TO KNOW YOUR OPINION ABOUT THIS ENGINE, DO YOU KNOW THAT IT CAN RUN AT 25000 RPM 2.2 Horse Power...?, IS BETTER THAN A JETT FIRE ENGINE ?
COST U$S 195.00 AND A JETT COST 275 WHITOUT MUFFLER AND RUN AT LESS RPM (SJ .46 R/C with muffler 16500 RPM 10X 6 PROP).
WHICH IS ESASY TU TUNE OR OPERATE?, I HEARD THAT ROSSI ARE DIFICULT TO TUNE AND ARE HEAVIER THAN THE OTHERS BRANDS.
WHAT ENGINE WILL YOU CHOOSE?
I LOVE EXTREME SPEED PROP PLANES LIKE DIAMOND DUST, SCREAMING DEMON, PATRIOT, ETC

REGARDS.

GABRIEL.


I do know that the mufflers are very weak and break easy.
I replaced the Rossi with a Jett...


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RE: NEW AXE ROSSI 45 ENGINE, 5 PORT, TUNED SILENCER 233... - 10/3/2009 11:22 AM   
DarZeelon



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quote:

ORIGINAL: estradajae

I really doubt it will turn 25,000 RPM...and I also think that the props you can get around there are not safe at 25,000



Jorge,


This engine is supposed to be something of an 'enlarged Q500 engine'...

Perhaps, 25K really is not within its usable range... but I think 20-22K is.

It should be capable of putting an APC 8.5x6.5N (Q500) prop into this range...
What I find wrong is the fact that the #4015 tuned-muffler, which is for 'normal' .45 size props, is a part of the package.

Anyone buying this engine should ask the retailer to replace it with the shorter #4011 (the Rossi Q500 item), with which it will get into the ~20K range with the appropriate prop.
The #4015 is for RPM up to ~17K.


As to your concern about RPM safety; APC limit their GFN props to 190,000/D, which for a sport 10x6 is 19K.

If the Q500 props are bound by the same limit, the 8.5x6.5 should withstand over 22.3K and 8.75" diameter NN props; 21.7K.

Their racing props are limited to 225,000/D, but I cannot be sure if "Racing Props" are not just those carbon-fiber 7.4-7.5" props for Q40, FAI and F1 pylon racing.


Maybe APC should be asked to better define which props they offer are "Racing Props"; i.e. if the Q500 GFN props are among them, so the correct RPM limits can be observed.


< Message edited by DarZeelon -- 10/3/2009 12:24 PM >

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RE: NEW AXE ROSSI 45 ENGINE, 5 PORT, TUNED SILENCER 233... - 11/26/2012 2:06 AM   
pikeman401


 

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Status: offline 		I have had a Rossi AXE 45 for about 5 years (nib). I have dusted it off and am thinking of selling it or using it. Reading what I can, it seems that these engines are not very popular any more. Do I have a paper weight or something I may be able to get a little cash for. It's more engine that am used to running. I also cannot figure out if mine is the 3 port 8mm carb or the 5 port 10mm carb. I cannot find any numbers on the engine to tell me which it is. I suspect it is the 3 port 8mm carb because of the age although in the specs sheet that came in the box it lists both engines. Also i have a Ultra thrust muffler I want to use. Would that work or do I need a tuned pipe? Any new info on the prop that would work for this engine

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RE: NEW AXE ROSSI 45 ENGINE, 5 PORT, TUNED SILENCER 233... - 11/26/2012 3:27 AM   
MJD



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RE: NEW AXE ROSSI 45 ENGINE, 5 PORT, TUNED SILENCER 233... - 11/26/2012 3:31 AM   
Warbird40


 

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Status: offline 		I also have a Rossi R45 Aereo Black Head that I would like suggestions on....best glow plug, prop size, fuel nitro %, etc.

Thanks


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RE: NEW AXE ROSSI 45 ENGINE, 5 PORT, TUNED SILENCER 233... - 11/26/2012 4:37 PM   
jaka


 

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Depends on what typ of plane you have in mind.
9x6-9x7 APC prop for Q-500 type plane (130cm in span, weighting 1,6-1,8kg) using 0-5% nitro and using a Rossi 6 glowplug.

For sport airplane like the Kyosho Calmato sports (Lowwinged, span: 170cm) a 11x6 APC, RAM or Graupner "Sonic" prop using 5% nitro and an Enya 3 or OS 8 glowplug.

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RE: NEW AXE ROSSI 45 ENGINE, 5 PORT, TUNED SILENCER 233... - 11/27/2012 4:35 PM   
earlwb


 

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For sport flying a 11x6 prop works really well. A Fox Long or Fox RC Long plug works fine in the engines. The enginesare very likely setup for zero to 5% nitromethane fuel. In Europe nitromethane is too expensive so they don't use it there. So you don't need to run lots of nitro in the glow fuel with the engines. If you try to run morte nitro the engines may not like it much at all.

For racing what Jaka stated works.



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RE: NEW AXE ROSSI 45 ENGINE, 5 PORT, TUNED SILENCER 233... - 11/27/2012 5:16 PM   
Warbird40


 

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Status: offline 		thanks Earl. I just got an email from Rossi and the email states that I can run 5%-15% nitro as long as the weather is not too hot. They state that I might have to lower nitro % or add shims if weather is very hot or is engine is running hot. So I will throw it in the test stand with an 11X6 prop and 15% nitro and see how it does.

Thanks once again!


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RE: NEW AXE ROSSI 45 ENGINE, 5 PORT, TUNED SILENCER 233... - 11/27/2012 7:38 PM   
jaka


 

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Outside temperature very seldom has anything to do how the engine behaves. It's the compression inside the engine that counts!
Most european engines like MVVS , Older super Tigre, OPS and Rossi are set up with high compression
and run best with 0-5% nitro. More nitro and you must add one or two 0,1mm head shims,

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RE: NEW AXE ROSSI 45 ENGINE, 5 PORT, TUNED SILENCER 233... - 12/2/2012 6:59 AM   
Warbird40


 

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Status: offline 		I will start with a methanol/castor/zero nitro blend and go from there

Thanks

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RE: NEW AXE ROSSI 45 ENGINE, 5 PORT, TUNED SILENCER 233... - 12/2/2012 9:27 AM   
asmund


 

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quote:

ORIGINAL: earlwb

In Europe nitromethane is too expensive so they don't use it there.


Yeah we do 15% is considered a standard fuel for most everything around where I live, I even use it on my MVVS .49, but maybe not the best for a Rossi without proper shimming.



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RE: NEW AXE ROSSI 45 ENGINE, 5 PORT, TUNED SILENCER 233... - 12/2/2012 11:12 AM   
jaka


 

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Nitro is easily obtained over here in Sweden too, but it's expensive! I use 5% in most of my engines except my small COX engines that likes 20-25%.

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RE: NEW AXE ROSSI 45 ENGINE, 5 PORT, TUNED SILENCER 233... - 12/2/2012 3:40 PM   
earlwb


 

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Status: offline 		One thing that people may fail to consider is that all out racing engines are for just that, "all out racing". The engines are not sport engines, they are not  easy running. But they can be quite picky, cantankerous, and troublesome to boot. They do not idle, have little to no midrange, the throttle is for killing the engine, if it even has a RC carb on it as many racing engines do not have a throttle and use a flood off or fuel cut off system instead. I have see numerous folks get a "racing engine" and expect to be able to fly it at the local flying field on a regular sport plane. They are terribly disappointed  with the engines then. They  put on a muffler and a "sport prop" and the engines don't run well like that at all.  These engines are analogous to trying to use a 1,000 HP dragster engine in a car in city traffic.

I still have a MVVS Quickie 500 engine and a Fox Quickie 500 engine still and neither of those engines is user friendly in their operation. But both of them can really turn up the RPMs though. I think i still have a Rossi .40 engine that was modified too, but I haven't looked for it in years though. But these engines are not for sport flying by any means, unless you are going to have a plane go fast and turn left or go straight up as fast as possible for a few seconds.

Now yes the engine can likely turn those high RPMs, but it will be above its peak HP and or torque range. So you'll need to prop it more for around 22K as was already mentioned earlier. In pylon racing chosing the proper propeller for the plane and engine is important. You need to compromise on the prop and RPMs as you need straightaway speed and good pullout speed from the turns too. A prop for all out speed down the straightaway may not give you enough acceleration pull out of the turns at the end, so they compromise. Now with control line speed, they are basically going as fast as possible in a straight line (albeit on control lines though). Free Flight is sort of a vertical drag race where the plane goes as fast as possible straight up for a few seconds. So in some cases one can setup the engine to turn around those max RPMs, but it depends on the situation though.



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RE: NEW AXE ROSSI 45 ENGINE, 5 PORT, TUNED SILENCER 233... - 12/4/2012 7:25 PM   
Warbird40


 

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Status: offline 		I ran the Rossi R45 with a Thunderbolt long plug and my 75% meth/25% castor home brew blend with a APC 10x7 prop and I am very happy with the results, IT SCREAMS!!!! I will tach it in the next couple of days when my friend returns my tach.

Thank you all for your advise!
Ed

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