Brodak Mark II engine
02-05-2009, 03:10 PM
#4
RE: Brodak Mark II engine
ORIGINAL: AndyW
Looks good being AAC but is that a standard plug they're using? If so, a turbo could give up to 1.5K improvement.
Looks good being AAC but is that a standard plug they're using? If so, a turbo could give up to 1.5K improvement.
Unless a fella is set up to do some machining, that particular engine is not easy to convert to another plug type.
andrew
02-05-2009, 06:06 PM
#5
Senior Member
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RE: Brodak Mark II engine
I have the CS .061 with the red cylinder/head, has one screw holding the muffler on and the throttle is too hard to turn,and needs work, so I havent spun it over just yet,,,,standard glow plug,,cylinder and head are one piece...Rog
02-05-2009, 06:23 PM
#6
RE: Brodak Mark II engine
The read head ones with a carb are the MkI ones.
The MkII uses regular plugs too, and has a head that is held down by 3 screws. I'm pretty sure one can use a lathe to fit a plug/head from an ASP engine, using the stock head with 3 screws to seal the plug against the liner. Haven't done it yet but its on my to do list, I even have an extra head in case I mess it up...
There is plenty of data on the CL forums, it would need a proper plug to make desent power.
Mine did about 14500rpm on 12% nitro and a MAS 5.5x4 and exhaust throttel from litemachines (idle at 6000rpm). With a proper head and smaller prop it should do fine for sport use I think.
The MkII uses regular plugs too, and has a head that is held down by 3 screws. I'm pretty sure one can use a lathe to fit a plug/head from an ASP engine, using the stock head with 3 screws to seal the plug against the liner. Haven't done it yet but its on my to do list, I even have an extra head in case I mess it up...
There is plenty of data on the CL forums, it would need a proper plug to make desent power.
Mine did about 14500rpm on 12% nitro and a MAS 5.5x4 and exhaust throttel from litemachines (idle at 6000rpm). With a proper head and smaller prop it should do fine for sport use I think.
02-05-2009, 07:01 PM
#8
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RE: Brodak Mark II engine
ORIGINAL: Andrew
Andy
Unless a fella is set up to do some machining, that particular engine is not easy to convert to another plug type.
andrew
ORIGINAL: AndyW
Looks good being AAC but is that a standard plug they're using? If so, a turbo could give up to 1.5K improvement.
Looks good being AAC but is that a standard plug they're using? If so, a turbo could give up to 1.5K improvement.
Unless a fella is set up to do some machining, that particular engine is not easy to convert to another plug type.
andrew
More disappointing to the RCers, no muffler and the venturi placement and angle makes it not so easy to add a throttle.
But as mentioned, it shouldn't be too hard to install a Norvel/Wasp plug. I think that Mecoa is making these now.
Then too, there are lots of burned out Norvel plugs around that with a little practice could be drilled and tapped to take a turbo. I posted a how-to a while back.
