my new project for the new hawk stall wing!more power, so have started a bigbore 670 engine making it 740cc rotax now. plus i wanted to turbo it so should be test running it next week!will do a tech artical on this build .miller performance engineering
check back for the latest on turbo rotax.

Sounds awesome! What horsepower? How much will it weigh?

thanks,
Jeff

well the same engine in snowmobile with big bore is around 155hp,the same engine turboed depending on boost anywhere from 150hp to 300hp!with that in mind, i think the engine will remain dependable in the 150hp range,running the turbo should really pickup the torque and allow more pitch better cruise. for sure better climb,short field performance, not trying to build a bomb im good at that!i guess thats why we call it experimetal,just using this data and testing for new two stroke engine proto type.sorry for spelling im not a english teacher just a engine builder!ill try and keep this forum up to date on testing data thanks mark

Hi All! Mr. Miller has requested that I upload some pictures of his Rotax 670 Engine Development... and here they are:

Any updates on the testing of the turbo Rotax, would love to hear more about it.
Thanks!

engine was stated today on pump gas ,have ordered a new battery seemed to be a little weak ,ordered 500ca lithium battery only 3 pound
engine ran great very smooth, starts and runs like it is fuel injected, plan on installing prop tomarron and running in engine ,i will start tuning in the carb circut also using fast acting 02 sensors and egt probsstill have to plume the other fuel sytem and some odds and ends should have more information next week.keep checking back, i recieved my new gearbox from auto flight for our fuel injected turbocharged apex engine so we will be back on that engine all so ! check back if you have questions let us know get the word out about this site we have some pretty cool projects going on ,we dont mind sharing our information as you can see God Bless
mark miller