mitch's super .051, will it work?

EXModelEngines wrote:Yeah, that would probably work nicely. You would probably have to run a few tests to see how much of a difference the heat sink actually makes.

I'd suggest (on top of what you already have written) a killer bee crankshaft installed in the crankcase of your choice and scrap the tank assembly and go with a killer bee style. Your going to be pulling a lot of fuel and using an external tank will help prolong run-times if you have the space in your plane.

Matt

thanks, i forgot to add the kb crank in the first post, stronger and lighter for better performance
wonder what kinda rpm this thing would do if i could get 50% nitro

mitchg95 wrote:

EXModelEngines wrote:Yeah, that would probably work nicely. You would probably have to run a few tests to see how much of a difference the heat sink actually makes.

I'd suggest (on top of what you already have written) a killer bee crankshaft installed in the crankcase of your choice and scrap the tank assembly and go with a killer bee style. Your going to be pulling a lot of fuel and using an external tank will help prolong run-times if you have the space in your plane.

Matt

thanks, i forgot to add the kb crank in the first post, stronger and lighter for better performance
wonder what kinda rpm this thing would do if i could get 50% nitro

50% might be pushing it with the TD 051 cylinder & piston. Not to say it cannot be done, but the wear you will be putting on that is going to reduce the life of a hard to get part.

I'd use a regular cylinder/piston. If you want to play around I have a bunch of modified Sure Start style ones that I use for testing. I could always send you a couple.

Matt

EXModelEngines wrote:

mitchg95 wrote:

EXModelEngines wrote:Yeah, that would probably work nicely. You would probably have to run a few tests to see how much of a difference the heat sink actually makes.

I'd suggest (on top of what you already have written) a killer bee crankshaft installed in the crankcase of your choice and scrap the tank assembly and go with a killer bee style. Your going to be pulling a lot of fuel and using an external tank will help prolong run-times if you have the space in your plane.

Matt

thanks, i forgot to add the kb crank in the first post, stronger and lighter for better performance
wonder what kinda rpm this thing would do if i could get 50% nitro

50% might be pushing it with the TD 051 cylinder & piston. Not to say it cannot be done, but the wear you will be putting on that is going to reduce the life of a hard to get part.

I'd use a regular cylinder/piston. If you want to play around I have a bunch of modified Sure Start style ones that I use for testing. I could always send you a couple.

Matt

good advice, i deffinetly dont want to reduce the life of a hard to get part. The sure start sounds like a great idea to fool around with mods and what not, what were you thinkin on the surestarts?

Yep the 60% wore my piston out in a dozen tanks or so.
As well as the KB crankshaft you'll need to put a PT19
Style stud in with a nut instead of a prop screw otherwise
A couple runs over 23/24 k and the prop screw will shear
The crank.
Good luck

John Goddard wrote:Yep the 60% wore my piston out in a dozen tanks or so.
As well as the KB crankshaft you'll need to put a PT19
Style stud in with a nut instead of a prop screw otherwise
A couple runs over 23/24 k and the prop screw will shear
The crank.
Good luck

like this one? http://coxengines.ca/cox-.049-hub-nut-balancing-weight.html

Bingo

sweet!!! tach race is in december right.....

John Goddard wrote:Yep the 60% wore my piston out in a dozen tanks or so.
As well as the KB crankshaft you'll need to put a PT19
Style stud in with a nut instead of a prop screw otherwise
A couple runs over 23/24 k and the prop screw will shear
The crank.
Good luck

John Goddard and others: i as well as others have purchased hardened steel caphead or buttonhead, (hex), screws which tend to last longer than the normal steel prop screws. they cost a bit more, but last longer.

happydad

Many ways to skin a cat HD.
I went the stud+nut route for 2 reasons
1, it's what Paul (see sticky about mouse racers) recommends.
2, any motor racing bod worth their salt replaces bolts throughout
Their motors with studs and nuts. Particularly head bolts and
Rod bolts.
Another couple observations I'd make is a stud screws All the way home
A bolt can't, also a hardened bolt is not a High Tensile bolt
I don't think you'll be able to get a HT bolt in 2.56 (or whatever
The prop bolt is) I doubt
They exist. Certainly in Europe the authorities won't
Certify an M3 bolt.
Finally I have had a bolt/crank failure which I think was in
My original 'Raw Power' thread.
We are routinely seeing speeds 10 % higher than the tach
Race winners of only 6 months ago. When everyone's
Engine is spinning over 22k there will be failures at
Kim's place next year if anyone would like a side
Bet my money's on the bee cranked non studded
Mota's

Mitch:

Describe the type of aircraft you wish to power with this "Super .051".

(Just curious)

mitchg95 wrote:

EXModelEngines wrote:

mitchg95 wrote:

EXModelEngines wrote:Yeah, that would probably work nicely. You would probably have to run a few tests to see how much of a difference the heat sink actually makes.

I'd suggest (on top of what you already have written) a killer bee crankshaft installed in the crankcase of your choice and scrap the tank assembly and go with a killer bee style. Your going to be pulling a lot of fuel and using an external tank will help prolong run-times if you have the space in your plane.

Matt

thanks, i forgot to add the kb crank in the first post, stronger and lighter for better performance
wonder what kinda rpm this thing would do if i could get 50% nitro

50% might be pushing it with the TD 051 cylinder & piston. Not to say it cannot be done, but the wear you will be putting on that is going to reduce the life of a hard to get part.

I'd use a regular cylinder/piston. If you want to play around I have a bunch of modified Sure Start style ones that I use for testing. I could always send you a couple.

Matt

good advice, i deffinetly dont want to reduce the life of a hard to get part. The sure start sounds like a great idea to fool around with mods and what not, what were you thinkin on the surestarts?

If you place an order I'd throw a couple cylinders I have played around with modifying in for no charge. I'd be interested to hear about the results in different setups.

Matt

SuperDave wrote:Mitch:

Describe the type of aircraft you wish to power with this "Super .051".

(Just curious)

i did not really have a plane in mind, i was thinking of it being a test stand king

EXModelEngines wrote:

mitchg95 wrote:

EXModelEngines wrote:

mitchg95 wrote:

EXModelEngines wrote:Yeah, that would probably work nicely. You would probably have to run a few tests to see how much of a difference the heat sink actually makes.

I'd suggest (on top of what you already have written) a killer bee crankshaft installed in the crankcase of your choice and scrap the tank assembly and go with a killer bee style. Your going to be pulling a lot of fuel and using an external tank will help prolong run-times if you have the space in your plane.

Matt

thanks, i forgot to add the kb crank in the first post, stronger and lighter for better performance
wonder what kinda rpm this thing would do if i could get 50% nitro

50% might be pushing it with the TD 051 cylinder & piston. Not to say it cannot be done, but the wear you will be putting on that is going to reduce the life of a hard to get part.

I'd use a regular cylinder/piston. If you want to play around I have a bunch of modified Sure Start style ones that I use for testing. I could always send you a couple.

Matt

good advice, i deffinetly dont want to reduce the life of a hard to get part. The sure start sounds like a great idea to fool around with mods and what not, what were you thinkin on the surestarts?

If you place an order I'd throw a couple cylinders I have played around with modifying in for no charge. I'd be interested to hear about the results in different setups.

Matt

ill have to get one of those prepaid visa cards, as i do not have a credit card of my own yet. Ill try to place another order sometime in the next week.

mitchg95 wrote:

EXModelEngines wrote:

mitchg95 wrote:

EXModelEngines wrote:

mitchg95 wrote:

EXModelEngines wrote:Yeah, that would probably work nicely. You would probably have to run a few tests to see how much of a difference the heat sink actually makes.

I'd suggest (on top of what you already have written) a killer bee crankshaft installed in the crankcase of your choice and scrap the tank assembly and go with a killer bee style. Your going to be pulling a lot of fuel and using an external tank will help prolong run-times if you have the space in your plane.

Matt

thanks, i forgot to add the kb crank in the first post, stronger and lighter for better performance
wonder what kinda rpm this thing would do if i could get 50% nitro

50% might be pushing it with the TD 051 cylinder & piston. Not to say it cannot be done, but the wear you will be putting on that is going to reduce the life of a hard to get part.

I'd use a regular cylinder/piston. If you want to play around I have a bunch of modified Sure Start style ones that I use for testing. I could always send you a couple.

Matt

good advice, i deffinetly dont want to reduce the life of a hard to get part. The sure start sounds like a great idea to fool around with mods and what not, what were you thinkin on the surestarts?

If you place an order I'd throw a couple cylinders I have played around with modifying in for no charge. I'd be interested to hear about the results in different setups.

Matt

ill have to get one of those prepaid visa cards, as i do not have a credit card of my own yet. Ill try to place another order sometime in the next week.

Could order from me directly, like you did before. Credit card, PayPal, money order, personal check are all forms of payment we accept.

Matt

EXModelEngines wrote:

mitchg95 wrote:

EXModelEngines wrote:

mitchg95 wrote:

EXModelEngines wrote:

mitchg95 wrote:

EXModelEngines wrote:Yeah, that would probably work nicely. You would probably have to run a few tests to see how much of a difference the heat sink actually makes.

I'd suggest (on top of what you already have written) a killer bee crankshaft installed in the crankcase of your choice and scrap the tank assembly and go with a killer bee style. Your going to be pulling a lot of fuel and using an external tank will help prolong run-times if you have the space in your plane.

Matt

thanks, i forgot to add the kb crank in the first post, stronger and lighter for better performance
wonder what kinda rpm this thing would do if i could get 50% nitro

50% might be pushing it with the TD 051 cylinder & piston. Not to say it cannot be done, but the wear you will be putting on that is going to reduce the life of a hard to get part.

I'd use a regular cylinder/piston. If you want to play around I have a bunch of modified Sure Start style ones that I use for testing. I could always send you a couple.

Matt

good advice, i deffinetly dont want to reduce the life of a hard to get part. The sure start sounds like a great idea to fool around with mods and what not, what were you thinkin on the surestarts?

If you place an order I'd throw a couple cylinders I have played around with modifying in for no charge. I'd be interested to hear about the results in different setups.

Matt

ill have to get one of those prepaid visa cards, as i do not have a credit card of my own yet. Ill try to place another order sometime in the next week.

Could order from me directly, like you did before. Credit card, PayPal, money order, personal check are all forms of payment we accept.

Matt

how bout' this? been wanting to get one for a while now http://www.exmodelengines.com/product.php?productid=17676&cat=267&page=1

Sure, whatever you need.

Send me an email sales@exmodelengines.com and we can discuss.

Matt

EXModelEngines wrote:Sure, whatever you need.

Send me an email sales@exmodelengines.com and we can discuss.

Matt

sounds good Matt

ill deffinetely keep you guys posted on this engine as i build her, ill try to get running photos and a video, first i have to build then get a new tach, mine broke :'(

mitchg95 wrote:ill deffinetely keep you guys posted on this engine as i build her, ill try to get running photos and a video, first i have to build then get a new tach, mine broke :'(

mitchg95: tachs are cheap. hobby people has them on sale every month or so for $9,95 or $15.95 or ???

HD

happydad wrote:

mitchg95 wrote:ill deffinetely keep you guys posted on this engine as i build her, ill try to get running photos and a video, first i have to build then get a new tach, mine broke :'(

mitchg95: tachs are cheap. hobby people has them on sale every month or so for $9,95 or $15.95 or ???

HD

i will have to check that out and maybe order one deffinetly need it to tune 4-stroke model engines because you cant tune them by sound like you can with a 2-stroke engine

SuperDave wrote:Mitch:

Describe the type of aircraft you wish to power with this "Super .051".

(Just curious)

what might you suggest Dave, im thinking Piper Super Cub