Look at new 2013 CMB91 RS EVO

[ALLAN YUEN]

I am curious that Anyone who did run new CMB91RS EVO in North America this year ? Is It powerful than 91 RS?

 

[Joe Warren]

Hint: Sub Ported Exhaust Engines like small volume pipes. Dont be surprised if you dont have to step back into a 13ccc pipe. I have 2 New RS101 CMB RS engine on order!!!! Stu says Mid May possibilty?

 

[dwilfong]

The new case ports are smaller than the RS.

This eng is made for more toque and fuel economy to run long races in Europe.

From what I was told the original testing was in a RS case. Then changes where made to get more toque for endurance racing.

Will be fitting the new .91 P/L in a RS case here soon to see what is what.

 

[Joe Warren]

The new case ports are smaller than the RS.

This eng is made for more toque and fuel economy to run long races in Europe.

From what I was told the original testing was in a RS case. Then changes where made to get more toque for endurance racing.

Will be fitting the new .91 P/L in a RS case here soon to see what is what.

We had torque years ago when they had the transfers and Boost ports at 124

 

[BigChuck]

If the piston matreial or the thickness of the piston walls dose not change there will be some very unhappy customers.

Also keep in mind on low nitro everything that is wanted for NAVGIA racing is there. For High nitro sprint racing.............time will tell. :huh:

 

[ALLAN YUEN]

Any News in happen ???

 

[Stuart Barr]

Any News in happen ???

Should be here in 2-3 weeks.

Stu

 

[ALLAN YUEN]

:huh: Nobody buy them in any world?? or h34r: Who owners of there engine are happy or sad ??

 

[BigChuck]

Go over on the euro sites if want to know..............if not...WAIT, like the rest of us!! h34r:

 

[PAUL STIRTON]

Ran them in a Twin yesterday. Early results are good. Vid to follow tomorrow.

 

[ALLAN YUEN]

Ran them in a Twin yesterday. Early results are good. Vid to follow tomorrow.

Good ! I want to see your vid how much of percent nitro did new engines run very well ? thanks

 

[Bart Drieghe]

The new engine seems to have more power and allows us to pull bigger props . Main difference is the crankcase , the crankshaft and the liner compared to the RS engine .

 

[Paul Osmond]

This was taken yesterday so far only 4 tanks of fuel pipes set at 11 3/4 in 50% fuel https://www.dropbox....CMBRS 91Evo.avi

 

[Buckshot]

This was taken yesterday so far only 4 tanks of fuel pipes set at 11 3/4 in 50% fuel https://www.dropbox....CMBRS 91Evo.avi

Nice running boat.

 

[BigChuck]

The new engine seems to have more power and allows us to pull bigger props . Main difference is the crankcase , the crankshaft and the liner compared to the RS engine .

It is either we pull more prop....???? Or we think we pull more prop.....???? :huh:

You race 6.5 and now with no change you have to run 6.7.....????

 

[Bart Drieghe]

The new engine seems to have more power and allows us to pull bigger props . Main difference is the crankcase , the crankshaft and the liner compared to the RS engine .

It is either we pull more prop....???? Or we think we pull more prop.....???? :huh:

You race 6.5 and now with no change you have to run 6.7.....????

Chuck ,

i cannot speak in terms of pitch but i can tell you this , we run 54mm props and with the evo type engine we can run 55mm ( and maybe more ) props . Its not thinking , it is so , Believe me

 

[BigChuck]

The new engine seems to have more power and allows us to pull bigger props . Main difference is the crankcase , the crankshaft and the liner compared to the RS engine .

It is either we pull more prop....???? Or we think we pull more prop.....???? :huh:

You race 6.5 and now with no change you have to run 6.7.....????

Chuck ,

i cannot speak in terms of pitch but i can tell you this , we run 54mm props and with the evo type engine we can run 55mm ( and maybe more ) props . Its not thinking , it is so , Believe me

Excellent.............That is the type of factual info that is useful................Thanks!!!

 

[Buckshot]

The new engine seems to have more power and allows us to pull bigger props . Main difference is the crankcase , the crankshaft and the liner compared to the RS engine .

It is either we pull more prop....???? Or we think we pull more prop.....???? :huh:

You race 6.5 and now with no change you have to run 6.7.....????

Chuck ,

i cannot speak in terms of pitch but i can tell you this , we run 54mm props and with the evo type engine we can run 55mm ( and maybe more ) props . Its not thinking , it is so , Believe me

So your talking in terms of the new 3.5 Evo?

Or overdriving a 15cc Evo?

 

[Tim_Duggan]

Submerged prop most likely. FSRV.

 

[BigChuck]

I am thinking that he is referring to the FSV 15cc mono. I was told that...Moro if I have the name correct was running the new motor in last years world finals.