Rossi engines question

[Carl Farrington]

Rossi don't do a 30 size engine. I've heard wonderful things about their
60's, and would definitely pick one if my next heli was a 60.

If my next heli was a 50 though, can anyone tell me if the Rossi 53 is
anything special?

[Beav]

"Carl Farrington" <carl@000compsup000.net> wrote in message
news:b4okde$l6r$1$830fa795@news.demon.co.uk...
> Rossi don't do a 30 size engine. I've heard wonderful things about their
> 60's, and would definitely pick one if my next heli was a 60.
>
> If my next heli was a 50 though, can anyone tell me if the Rossi 53 is
> anything special?

It's fuckin' powerful.:-)


--
Beav


Please note my E-mail address is "beavis dot original at ntlworld dot com"
(with the obvious changes)

Beavisland now lives at
www.beavisoriginal.co.uk

[Andy Carpenter]

Is the Rossi easy to set-up and trouble free ?
Not from what I have seen of them. They seem to be engines for people that
like to spend a long time setting them up.
And re the 61, everyone I know that runs one, slowly moved up from zero
nitro (the big selling point) and now runs 10 or 15% to get smooth fiddle
free runs.

--
Carps.

[ http://www.carps.co.uk ]

"Beav" <beavis.original@ntloxoworld.com> wrote in message
news:toSba.1128$w7.8360@newsfep4-glfd.server.ntli.net...
>
> "Carl Farrington" <carl@000compsup000.net> wrote in message
> news:b4okde$l6r$1$830fa795@news.demon.co.uk...
> > Rossi don't do a 30 size engine. I've heard wonderful things about their
> > 60's, and would definitely pick one if my next heli was a 60.
> >
> > If my next heli was a 50 though, can anyone tell me if the Rossi 53 is
> > anything special?
>
> It's fuckin' powerful.:-)
>
>
> --
> Beav
>
>
> Please note my E-mail address is "beavis dot original at ntlworld dot com"
> (with the obvious changes)
>
> Beavisland now lives at
> www.beavisoriginal.co.uk
>
>

[Beav]

"Andy Carpenter" <andy@REMOVEcarpsTHE.coUPPER.ukCASE> wrote in message
news:b4p8fj$aqd$1@helle.btinternet.com...
> Is the Rossi easy to set-up and trouble free ?
> Not from what I have seen of them. They seem to be engines for people that
> like to spend a long time setting them up.
> And re the 61, everyone I know that runs one, slowly moved up from zero
> nitro (the big selling point) and now runs 10 or 15% to get smooth fiddle
> free runs.
>

I don't know what they're doing if they need nitro in the Rossi 60 Andy. I
only touch my needle valve a couple of times a year when the weather changes
from summer to winter and the adjustment is only an 1/8 - 1/4 turn at most.

It starts with no trouble, it's never quit in the air and it hauls my 11lb
Futura with no effort. Adding nitro over compresses the engine too and you
run into pinking problems if not snapped con-rods.

The 53 is a little different and does run better on a TOUCH of nitro (5%)
but it's no more powerful with nitro, it just makes the needle less critical
when you're setting the mixture.
Having said that, once the mixture IS set, the 53 is just like the 60:
smooth, powerful and piss easy to use. Start motor, fly heli, stop motor,
re-fuel, start, fly, etc.

Another thing about Rossi engines that gets forgotten in most engine
discussions is their guarantee. It's a 3 year deal and any time during that
3 years the engine will be either repaired or replaced if ANYTHING goes
wrong with it. Keep the receipt.



--
Beav


Please note my E-mail address is "beavis dot original at ntlworld dot com"
(with the obvious changes)

Beavisland now lives at
www.beavisoriginal.co.uk

[Joaquim Fonseca]

I´ve some friends with Rossi, big ones, and they all like these engines. I´m
not 100% sure, but I thinks Rossi expressly says not to add any Nitro, or if
you do you must replace something first (cylinder head??)

JFonseca

"Andy Carpenter" <andy@REMOVEcarpsTHE.coUPPER.ukCASE> escreveu na mensagem
news:b4p8fj$aqd$1@helle.btinternet.com...
> Is the Rossi easy to set-up and trouble free ?
> Not from what I have seen of them. They seem to be engines for people that
> like to spend a long time setting them up.
> And re the 61, everyone I know that runs one, slowly moved up from zero
> nitro (the big selling point) and now runs 10 or 15% to get smooth fiddle
> free runs.
>
> --
> Carps.
>
> [ http://www.carps.co.uk ]
>
> "Beav" <beavis.original@ntloxoworld.com> wrote in message
> news:toSba.1128$w7.8360@newsfep4-glfd.server.ntli.net...
> >
> > "Carl Farrington" <carl@000compsup000.net> wrote in message
> > news:b4okde$l6r$1$830fa795@news.demon.co.uk...
> > > Rossi don't do a 30 size engine. I've heard wonderful things about
their
> > > 60's, and would definitely pick one if my next heli was a 60.
> > >
> > > If my next heli was a 50 though, can anyone tell me if the Rossi 53 is
> > > anything special?
> >
> > It's fuckin' powerful.:-)
> >
> >
> > --
> > Beav
> >
> >
> > Please note my E-mail address is "beavis dot original at ntlworld dot
com"
> > (with the obvious changes)
> >
> > Beavisland now lives at
> > www.beavisoriginal.co.uk
> >
> >
>
>

[Rhodesst]

>I´m
>not 100% sure, but I thinks Rossi expressly says not to add any Nitro, or if
>you do you must replace something first (cylinder head??)
>
>JFonseca

I can't say for current Rossi engines although I've never heard anything
different. I had a Rossi 60 in one of my helicopters about 10 years ago. I
fought and fought that engine while trying to run it on 15% until I met a guy
at a fun fly who asked what fuel I was burning. When I told him, he asked,
"Didn't you know you're not supposed to run anything greater than 5% in a
Rossi?" He happened to have a jug of FAI fuel (0% nitro) and I tried a tank.
The engine ran great on it. No problems whatsoever. When I got home, I dug up
the directions. Sure enough, 0 to 5% nitro fuel only. Doh...... :-o

It always pays to "read the directions!!!"

If I'm not mistaken, you can run higher nitro fuels. I don't know if you have
to replace the cylinder head. Maybe. At the very least, I'd think you'd have
to add some number of cylinder head shims to lower the compression before you
could run the higher nitro fuels.

FWIW,
Fly Safe,
Steve R.

[said]

Xref: news.newshosting.com rec.models.rc.helicopter:47744

I have a Moskito expert with a Rossi engine and have not been able to run .I
use 10% nitro and when i try to start it it develops a hydraulic lock and i
just gave up on it????Any ideas will be much appreciated
"Rhodesst" <rhodesst@aol.com> wrote in message
news:20030313150455.05653.00000001@mb-mi.aol.com...
> >I´m
> >not 100% sure, but I thinks Rossi expressly says not to add any Nitro, or
if
> >you do you must replace something first (cylinder head??)
> >
> >JFonseca
>
> I can't say for current Rossi engines although I've never heard anything
> different. I had a Rossi 60 in one of my helicopters about 10 years ago.
I
> fought and fought that engine while trying to run it on 15% until I met a
guy
> at a fun fly who asked what fuel I was burning. When I told him, he
asked,
> "Didn't you know you're not supposed to run anything greater than 5% in a
> Rossi?" He happened to have a jug of FAI fuel (0% nitro) and I tried a
tank.
> The engine ran great on it. No problems whatsoever. When I got home, I
dug up
> the directions. Sure enough, 0 to 5% nitro fuel only. Doh...... :-o
>
> It always pays to "read the directions!!!"
>
> If I'm not mistaken, you can run higher nitro fuels. I don't know if you
have
> to replace the cylinder head. Maybe. At the very least, I'd think you'd
have
> to add some number of cylinder head shims to lower the compression before
you
> could run the higher nitro fuels.
>
> FWIW,
> Fly Safe,
> Steve R.

[Carl Farrington]

"said" <said@mweb.co.za> wrote in message
news:3e70fc71.0@news1.mweb.co.za...
> I have a Moskito expert with a Rossi engine and have not been able to run
..I
> use 10% nitro and when i try to start it it develops a hydraulic lock and
i
> just gave up on it????Any ideas will be much appreciated

is the carb blocked somehow?

[Beav]

"said" <said@mweb.co.za> wrote in message
news:3e70fc71.0@news1.mweb.co.za...
> I have a Moskito expert with a Rossi engine and have not been able to run
..I
> use 10% nitro and when i try to start it it develops a hydraulic lock and
i
> just gave up on it????Any ideas will be much appreciated

Well hydraulic locking isn't a function of the engine, it's a fuel thing.
Too much getting in and as the motor is upside down in the Mozzies, once the
overabundance of fuel gets into the engine, it gravitates to the cyclinder
head where it WILL lock the motor.

The "cure" is simple in it's simplicity too. Stop ANY fuel from getting to
the carb before you start cranking the motor. Once the engine is spinning,
use your free hand (or the hand of a pal) to unclamp the fuel line. With the
intital cranking done with the glo lead attached, as soon as fuel hits the
plug, the motor will fire.

Then it's a case of getting the mixture correct and you're flying.


--
Beav


Please note my E-mail address is "beavis dot original at ntlworld dot com"
(with the obvious changes)

Beavisland now lives at
www.beavisoriginal.co.uk

[Beav]

"Rhodesst" <rhodesst@aol.com> wrote in message
news:20030313150455.05653.00000001@mb-mi.aol.com...
> >I´m
> >not 100% sure, but I thinks Rossi expressly says not to add any Nitro, or
if
> >you do you must replace something first (cylinder head??)
> >
> >JFonseca
>
> I can't say for current Rossi engines although I've never heard anything
> different. I had a Rossi 60 in one of my helicopters about 10 years ago.
I
> fought and fought that engine while trying to run it on 15% until I met a
guy
> at a fun fly who asked what fuel I was burning. When I told him, he
asked,
> "Didn't you know you're not supposed to run anything greater than 5% in a
> Rossi?" He happened to have a jug of FAI fuel (0% nitro) and I tried a
tank.
> The engine ran great on it. No problems whatsoever. When I got home, I
dug up
> the directions. Sure enough, 0 to 5% nitro fuel only. Doh...... :-o
>
> It always pays to "read the directions!!!"
>
> If I'm not mistaken, you can run higher nitro fuels. I don't know if you
have
> to replace the cylinder head. Maybe. At the very least, I'd think you'd
have
> to add some number of cylinder head shims to lower the compression before
you
> could run the higher nitro fuels.

Different heads for nitro Steve, but why anyone would go to the time,
trouble and expense of fitting something that requires even more expense
forever afterwards is beyond me. The nitro headed Rossi's don't develop any
more power, they're just less needle critical.


--
Beav


Please note my E-mail address is "beavis dot original at ntlworld dot com"
(with the obvious changes)

Beavisland now lives at
www.beavisoriginal.co.uk

[Rhodesst]

>Different heads for nitro Steve, but why anyone would go to the time,
>trouble and expense of fitting something that requires even more expense
>forever afterwards is beyond me. The nitro headed Rossi's don't develop any
>more power, they're just less needle critical.
>
>
>--
>Beav
>

I was wondering about that Beav. I hadn't heard of a different head for nitro
use on a Rossi.

I agree completely thought. Why would anyone want to modify an otherwise
strong running engine so that it has to have a "more" expensive fuel?

You never know.......?

Fly Safe,
Steve R.

[Beav]

"Rhodesst" <rhodesst@aol.com> wrote in message
news:20030314001829.21120.00000008@mb-bj.aol.com...
> >Different heads for nitro Steve, but why anyone would go to the time,
> >trouble and expense of fitting something that requires even more expense
> >forever afterwards is beyond me. The nitro headed Rossi's don't develop
any
> >more power, they're just less needle critical.
> >
> >
> >--
> >Beav
> >
>
> I was wondering about that Beav. I hadn't heard of a different head for
nitro
> use on a Rossi.

Steve,

Rossi heads have a small central "button" which is where the differences are
and they're pretty cheap compared to a full head complete with heatsing
fins, so it's not a major expense, but it's still something I don't think is
necessary. It's better than using shims though as that not only reduces
compression, it bollocks's up the squish band shape too, so you're not
getting the best out of the engine even on X% nitro
>
> I agree completely thought. Why would anyone want to modify an otherwise
> strong running engine so that it has to have a "more" expensive fuel?
>
> You never know.......?

I see it frequently Steve.


--
Beav


Please note my E-mail address is "beavis dot original at ntlworld dot com"
(with the obvious changes)

Beavisland now lives at
www.beavisoriginal.co.uk

[Bev.Friend]

I've had several Rossis and am now running the 11cc motor in an Xtreme with
a 33cm long pipe (from Vario)
They run very well with 0% nitro however they need at least 15 tanks of fuel
to be run in and being an ABC motor needs a good starter to turn it over,
Also the main needle is only active for about the last 25% of the carb
opening. To use nitro one or two head shims must be added,

"Rhodesst" <rhodesst@aol.com> wrote in message
news:20030314001829.21120.00000008@mb-bj.aol.com...
> >Different heads for nitro Steve, but why anyone would go to the time,
> >trouble and expense of fitting something that requires even more expense
> >forever afterwards is beyond me. The nitro headed Rossi's don't develop
any
> >more power, they're just less needle critical.
> >
> >
> >--
> >Beav
> >
>
> I was wondering about that Beav. I hadn't heard of a different head for
nitro
> use on a Rossi.
>
> I agree completely thought. Why would anyone want to modify an otherwise
> strong running engine so that it has to have a "more" expensive fuel?
>
> You never know.......?
>
> Fly Safe,
> Steve R.

[Beav]

"Bev.Friend" <beverley.friend@wanadoo.fr> wrote in message
news:b4skqm$213$1@news-reader12.wanadoo.fr...

Long time since you were here Bev. Hope you're doing Ok.

> I've had several Rossis and am now running the 11cc motor in an Xtreme
with
> a 33cm long pipe (from Vario)
> They run very well with 0% nitro however they need at least 15 tanks of
fuel
> to be run in and being an ABC motor needs a good starter to turn it over,

Yeah, they DO take a lot of running in, but they don't fall into that
category a lot of high performance engines do which is "Ages to run in and a
month later they're worn out". My current Rossi is getting close to 3 years
old now and it's still all original and it's running better than ever.

> Also the main needle is only active for about the last 25% of the carb
> opening.

I tune mine on a stand where I can run it at full throttle and make the high
end adjustments "on the fly" after I've set the idle mixture, coz like you
say, the main needle doesn't have u=much effect at low to mid throttle
openings.

To use nitro one or two head shims must be added,

And it's not the best solution for anyone WANTING to run nitro. A new head
button designed for nitro is the better answer, but 2.9bhp out of a standard
60 running straight fuel is good enough for me.


--
Beav


Please note my E-mail address is "beavis dot original at ntlworld dot com"
(with the obvious changes)

Beavisland now lives at
www.beavisoriginal.co.uk

[Beav]

"Carl Farrington" <carl@000compsup000.net> wrote in message
news:b4pqd6$q9v$1$8300dec7@news.demon.co.uk...
> "Andy Carpenter" <andy@REMOVEcarpsTHE.coUPPER.ukCASE> wrote in message
> news:b4p8fj$aqd$1@helle.btinternet.com...
> > Is the Rossi easy to set-up and trouble free ?
> > Not from what I have seen of them. They seem to be engines for people
that
> > like to spend a long time setting them up.
> > And re the 61, everyone I know that runs one, slowly moved up from zero
> > nitro (the big selling point) and now runs 10 or 15% to get smooth
fiddle
> > free runs.
>
> I'd run a minimum of 5% nitro anyway after the experience I've had getting
> my Webra35 running well on straight meth

You'd have even more experiences to remember if you did too.

Rossi 60's are ZERO nitro engines and that's what they run best on.


--
Beav


Please note my E-mail address is "beavis dot original at ntlworld dot com"
(with the obvious changes)

Beavisland now lives at
www.beavisoriginal.co.uk