DIY Total loss or MSD TL upgrade box 270USD?

[Christian_83]

So the other day i borrowed some blown cases from my buddy Stefan, had and old OEM crank i cut the con rods off, now its ready to become bench tester. So now i just gotta talk the last details with Borut to be sure and get the right CDI box, adapt and electric motor with a speed control, before testing can begin

 

[speedysprocket]

So I (PFM) have done a couple 760 flywheels for the same person, one charging and one total loss style with no magnets. Apparently the difference between magnets and no magnets was so noticeable that his friend who tried both back to back and initially wanted a charging system, wouldn’t give the no magnet flywheel back after!
I can lighten your 760 flywheels, to include removing the small nub, either way for $95.

 

[Storbeck]

Do you turn the magnets off with a lathe? Or do you have to smash it off then clean up with lathe?

 

[speedysprocket]

Do you turn the magnets off with a lathe? Or do you have to smash it off then clean up with lathe?

Do you have a lathe and have you tried to cut the magnets? They’re probably harder, yet more brittle, than the carbide cutting bits I use.
I chisel the magnets out, which is still a pain.

 

[Storbeck]

I have a lathe, and I haven't tried cutting magnets because it seemed like it probably wouldn't work lol

 

[waxhead]

I just smash them out, myself

 

[waxhead]

Magnets dont cut that well on a lathe. The simple get angry and bash them out works just fine.

 

[speedysprocket]

That’s what I said

 

[speedysprocket]

But I lighten them further after taking the magnets out.

 

[Storbeck]

I will smash, then I will lathe, then I will Braaappp.

 

[OCD Solutions]

So the other day i borrowed some blown cases from my buddy Stefan, had and old OEM crank i cut the con rods off, now its ready to become bench tester. So now i just gotta talk the last details with Borut to be sure and get the right CDI box, adapt and electric motor with a speed control, before testing can begin

That actually looks pretty smooth but what RPM are you cranking that at in the video and high high do you plan to go?

The crank is balanced with the piston assembly intact and so cutting them off throws the whole thing out of balance. I know because I did the exact same thing when I build my test bench. Once you start putting some speed to it, the slight hop will become violent!

I ended up turning a dummy shaft for mine and am now smooth and balanced past 10,000 RPM.

I used aluminum initially with the intention of redoing it out of steel but it's standing up well so I will probably leave it.

 

[waxhead]

That actually looks pretty smooth but what RPM are you cranking that at in the video and high high do you plan to go?

The crank is balanced with the piston assembly intact and so cutting them off throws the whole thing out of balance. I know because I did the exact same thing when I build my test bench. Once you start putting some speed to it, the slight hop will become violent!

I ended up turning a dummy shaft for mine and am now smooth and balanced past 10,000 RPM.

I used aluminum initially with the intention of redoing it out of steel but it's standing up well so I will probably leave it.

View attachment 354605

That's an awesome way to do it, Love your work

 

[waxhead]

That’s what I said

And here I am agreeing with you

 

[newbee]

That actually looks pretty smooth but what RPM are you cranking that at in the video and high high do you plan to go?

The crank is balanced with the piston assembly intact and so cutting them off throws the whole thing out of balance. I know because I did the exact same thing when I build my test bench. Once you start putting some speed to it, the slight hop will become violent!

I ended up turning a dummy shaft for mine and am now smooth and balanced past 10,000 RPM.

I used aluminum initially with the intention of redoing it out of steel but it's standing up well so I will probably leave it.

View attachment 354605

So once you get in to the new OCD garage will you be mapping the 760 stock cdi?
Maybe

 

[OCD Solutions]

Haha, maybe if I feel inspired someday. I wouldn't hold my breathe though. My test unit used to sit on the bench beside my Mill and shared components with it's controller and since building the new cabinet, the two just don't mate up like they used to.

 

[Quinc]

Thanks Man plug and play is awesome, did you end up taking off the lump on the flywheel. You know how there is three lumps

Just ordered all the parts to build one of these and wondering if you have a picture of the third lump that needs to be removed? Also if it needs to be removed with the PDCIS-01T ? or just the -11?

 

[waxhead]

That little one right there. It take about 30 seconds to remove it. you have to remove it no matter what zeeltronic you run

 

[speedysprocket]

I’ve been told it’s quite the difference between even my lightened and magnet remove plus lightened 760 flywheels for this setup. I’ve done 4 flywheels, soon to be 5, for the same group of guys running it!

 

[waxhead]

I’ve been told it’s quite the difference between even my lightened and magnet remove plus lightened 760 flywheels for this setup. I’ve done 4 flywheels, soon to be 5, for the same group of guys running it!

I have done a few with magnets out as well, And I agree with that statement

 

[alex_hockey]

Magnets removed for the win, one day i will have to get my lightened