Originally Posted by spcpicard

Anyone know what length standoffs I will need for a motrofly 4325?
Thanks

Do a search for Powerlines posts in this thread. He posted what he did on his. Im not sure if he doubled up on some short standoffs or just washers lol

Mine has the shorter motor box and the threads I read of his were the longer motor box, just hoping someone already had the length so I could order some stand offs while I was waiting on my motor

Originally Posted by spcpicard

Mine has the shorter motor box and the threads I read of his were the longer motor box, just hoping someone already had the length so I could order some stand offs while I was waiting on my motor

Message me the measurements of your motor box and I'll try to figure out what length you need since I have the Motrofly 4325

Originally Posted by spcpicard

Mine has the shorter motor box and the threads I read of his were the longer motor box, just hoping someone already had the length so I could order some stand offs while I was waiting on my motor

The total length of the motor with standoffs should be 160mm (6.29"). Measure the length of the motor and subtract this number from 160mm and this will tell you what standoff length to use.

That would be 95mm stand offs? Any idea where to get them that length? Seems really long and a lot of stress due to leverage on the mounted ply. Doesn't seem like an ideal electric setup for something being advertised for electric. I was really impressed with the kit up to this point.

Originally Posted by spcpicard

That would be 95mm stand offs? Any idea where to get them that length? Seems really long and a lot of stress due to leverage on the mounted ply. Doesn't seem like an ideal electric setup for something being advertised for electric. I was really impressed with the kit up to this point.

The way EF builds their planes the length of standoffs adding stress to the motor box is unlikely. Besides, if it can hold a gasser that vibrates and weighs more than an outrunner I doubt you will have trouble. I personally own three of their planes and one in particular has taken a really bad beating and still asks for more. To be exact I have dropped it on the tail from a hover(x4), cartwheeled it(x2), landed it on the canopy, and several less than favorable landings due to wind (20+mph). Don't just assume or go off whims or assumptions. See for yourself the quality this company puts forth into these air frames and you will be surprised as to what they can handle. Am I a sponsored pilot?? NO. I just know quality when I see it and they got their S***t together. Now all I want to do is fly with minimum build time. I will never buy another kit since companies like EF provide hassle free ARF planes. Oh, and yes one of those planes is the 70" EXP and it flies great.

Originally Posted by spcpicard

That would be 95mm stand offs? Any idea where to get them that length? Seems really long and a lot of stress due to leverage on the mounted ply. Doesn't seem like an ideal electric setup for something being advertised for electric. I was really impressed with the kit up to this point.

double up secraft? 50+45mm? ask cmala to make you a set? ask steweT to make you set?

Originally Posted by jw357_23043

The way EF builds their planes the length of standoffs adding stress to the motor box is unlikely. Besides, if it can hold a gasser that vibrates and weighs more than an outrunner I doubt you will have trouble. I personally own three of their planes and one in particular has taken a really bad beating and still asks for more. To be exact I have dropped it on the tail from a hover(x4), cartwheeled it(x2), landed it on the canopy, and several less than favorable landings due to wind (20+mph). Don't just assume or go off whims or assumptions. See for yourself the quality this company puts forth into these air frames and you will be surprised as to what they can handle. Am I a sponsored pilot?? NO. I just know quality when I see it and they got their S***t together. Now all I want to do is fly with minimum build time. I will never buy another kit since companies like EF provide hassle free ARF planes. Oh, and yes one of those planes is the 70" EXP and it flies great.

The quality seems top notch, all I am saying is something that requires more than 3 inch stand offs is usually larger than a 50cc gaser. Sorry but I seriously doubt that the motor box was built to handle a motor like that. I'm not comparing my motor to a 50cc, but no matter what motor u put, the longer the stand offs the more stress you are going to put small area that the stand offs are mounted to. I agree I also like to fly with minimum build time, but sourcing 3 3/4 standoffs with adequate surface area contact is not minimal build time.

Originally Posted by rimaarts

double up secraft? 50+45mm? ask cmala to make you a set? ask steweT to make you set?

Thanks for the suggestions, I'm just surprised no one else has used the motrofly 4325 and had problems using/ finding standoffs. I'll probably try to find some da50 3"mounts and add smaller spacers to get it the rest of the way, the only prob is I can't find them in stock.

and why people allways ask for opinions, get opinions and after that still chooses something other.... (ben there, done that on more than one occasion)

I'm using a A60-6XS and I needed 76mm of standoff. I used 2x evolution 38mm and drilled them out for 5mm and used M5 90mm bolts with blindnuts. For something this long you'll need to use threaded rod with nuts. I used a 4325 on a 3DHS 72" extra and had the same issue.

Originally Posted by spcpicard

The quality seems top notch, all I am saying is something that requires more than 3 inch stand offs is usually larger than a 50cc gaser. Sorry but I seriously doubt that the motor box was built to handle a motor like that. I'm not comparing my motor to a 50cc, but no matter what motor u put, the longer the stand offs the more stress you are going to put small area that the stand offs are mounted to. I agree I also like to fly with minimum build time, but sourcing 3 3/4 standoffs with adequate surface area contact is not minimal build time.

Actually the 70 EXP is built for a 30cc or electric setup. I run the 4325 however I have the old style box. I agree that the box is a bit short for the 4325 since it is a short stumpy outrunner. My standoffs are 2 1/2". I had to add 3/8" since the old motor was 65mm in length.

FYI mocked everything up and standoffs need to be about 87mm or a little shy of 3 1/2 inches

Originally Posted by Enterprise7

I'm using a A60-6XS and I needed 76mm of standoff. I used 2x evolution 38mm and drilled them out for 5mm and used M5 90mm bolts with blindnuts. For something this long you'll need to use threaded rod with nuts. I used a 4325 on a 3DHS 72" extra and had the same issue.

Do you happen to know the diameter of the evolution standoffs? I may go that route and get the 38mm and 50mm sucks that I'm gonna have to dish out $40 plus shipping.

Originally Posted by EXTREME FLIGHT

The total length of the motor with standoffs should be 160mm (6.29"). Measure the length of the motor and subtract this number from 160mm and this will tell you what standoff length to use.

doesnt get any easier than that.