Motor power help needed

[dwilfong]

I know there are a lot of knowledgeable people here on motors and have a question.

I am planing on building a Eng Dino this year using a in runner motor for a alternator.

I am going to use a bridge rectifier to change the 3 phase AC to DC and resistors to load the field.

My question is Is there a motor that will hold 7000w for a long time and not go poof!

The ratings on motors are all over the place. what is what?

Any one ever use a TP Power motor?

http://shop.rcboatbi...products_id=918

http://kershawdesigns.com/TPPower.htm

David

 

[lohring]

You might consider these motors. We've run them and they seem to be equivalent to the similar size Neu motors. Brian Buaas has set the P hydro SAW record with a smaller one.

Lohring Miller

 

[RaceMechaniX]

David,

You should consider Lehner 30 series and Neu 22 series as prime candidates. Both have power ratings 30% above what a nitro motor will put out and both have internal cooling fans.

I am using a Lehner 3060 as a motor dyno for testing other motors. I can run at 5kW all day long with water cooling on the shell.

Some pics of the motor dyno attached.

Tyler

 

[dwilfong]

David,

You should consider Lehner 30 series and Neu 22 series as prime candidates. Both have power ratings 30% above what a nitro motor will put out and both have internal cooling fans.

I am using a Lehner 3060 as a motor dyno for testing other motors. I can run at 5kW all day long with water cooling on the shell.

Some pics of the motor dyno attached.

Tyler

What make is that load cell? Dose the s style work good. Dose it need a amp? or will it work on a 4v out put?

 

[dwilfong]

You might consider these motors. We've run them and they seem to be equivalent to the similar size Neu motors. Brian Buaas has set the P hydro SAW record with a smaller one.

Lohring Miller

Thy look good!!!! and the price is right.

 

[larcor69]

whats in the pic's looks awesome dave, the r/c world need a standard system, and I think your on the right path

 

[dwilfong]

My interest was sparked by a tread over on Jim's by my buddy Hugh.

This pick of a Dino posted here has set my mind strait on what to do.

Now just need to pick a motor that will hold up and not break my Piggy bank.

Only have $150 a week budget for my toy boats.

Can't blow to much on a motor.

The pivoting motor on bearings is what I had in my mind. but making it all in one with the cooling is the bomb.

Just need more info on the power of the motor listed in Lohring's post?

I need a test stand for my Eng control system I am working on.

David

 

[dwilfong]

The Typhoon 800-73 is only rated at 4800w. will need more than that to be safe.

 

[lohring]

Tyler, it's refreshing to see how professionals do it. that's a very nice miniature version of the standard electric dynamo type dyno. Dave, I wouldn't worry about the rating on the Typhoon motor. It will run at a lot higher current when water cooled, especially for short periods. Two hundred amps won't be a problem. That's 7,400 watts at 37 volts.

Lohring Miller

 

[dwilfong]

Tyler, it's refreshing to see how professionals do it. that's a very nice miniature version of the standard electric dynamo type dyno. Dave, I wouldn't worry about the rating on the Typhoon motor. It will run at a lot higher current when water cooled, especially for short periods. Two hundred amps won't be a problem. That's 7,400 watts at 37 volts.

Lohring Miller

That is why I asked the question. Motor rating are all over the place.

I like that motor. the shell is strait and smooth. It will work good with the setup that Tyler has shown.

Will give the big one a try.