[bigkim100]

Is there any way to convert a 90cc Nitro motors specifications to a brushless or brushed motor??

Thanks,
Kim

[scaleguy]

Found this at the Hacker Electric Motor Site. Hope it helps.

https://hackermotorusa.com/resources...ication-guide/

[bigkim100]

Im having a helluva time understanding all the crap that is on there

[kwm]

A lot of engine manufacturers have a 90cc equivalent engine. Check with rimfire, amazon, banggood, hobby king, etc.

[Terry Gauvin]

.90 cc perhaps? Decimal makes a pretty huge difference.

[scaleguy]

Originally Posted by bigkim100

Im having a helluva time understanding all the crap that is on there

I thought the chart was pretty self explanatory but here it goes

Hacker is saying that if you are currently using a .90 Glow engine and your aircraft weight is between 8 - 13 lbs (that would be including the weight of the battery) they recommend their A60 7XS motor which uses an 8s, 4500 mAh battery swinging a 19"x 10 prop. The motor will draw 85 Amps at full power so best to use a 100 Amp ESC

Here is the motor they are suggesting https://hackermotorusa.com/shop/hack...r-320-rpmvolt/

Here is another chart for RimFire motors:
http://www.greatplanes.com/powersyst...-brushless.php

Hope this helps

[Dennis Pedersen]

And here is a Hacker A60-7XS for you in Canada. It will be power like your TT90 never dreamed of.

https://www.thehelihangar.ca/collect...7xs-v2-28-pole

[Trumpet]

Motocalc is free for a month - lots of programmable options to try - http://www.motocalc.com/

Interesting charts - https://www.scorpionsystem.com/files...rison%2001.pdf

https://innov8tivedesigns.com/docs/A...otor-Chart.htm

[Dennis Pedersen]

Originally Posted by Trumpet

Motocalc is free for a month - lots of programmable options to try - http://www.motocalc.com/

Interesting charts - https://www.scorpionsystem.com/files...rison%2001.pdf

https://innov8tivedesigns.com/docs/A...otor-Chart.htm

Those are great sheets as are there prop test sheets on all the Cobras and other motors they sell like the Badass line now.

[stegl]

Originally Posted by bigkim100

Is there any way to convert a 90cc Nitro motors specifications to a brushless or brushed motor??

Thanks,
Kim

Been using brushless motors 10 going on more years and still learning a few things. As been said a brushless motor will blow you socks off as far as torque is concerned.
Where I would start is weight of aircraft , max length of prop you can turn and the type of flying you want to do ie pattern ,scale flying or ?

A brushless motor will develop higher torque throughout its full rpm range were a fuel motor developers its full potential at closer to the top end. Guaranteed you will get arguments on that statement .
Many other helpful links here from others.