Predator 212 w/TC on a spiderbox?

[Dustinsspace]

Picked up this spiderbox for cheap and wanting to add a 212 with torque converter, how do I measure where to weld the mounting plate? Heck will this build even work?

Pics of rear swing arm as is for ideas... I am sure someone has to have tried this before just can’t find it...

 

[mckutzy]

You need to orientate the pic the proper way as its really hard to tell this side up..

 

[bob58o]

You need to orientate the pic the proper way as its really hard to tell this side up..

there ya go

 

[itsid]

well first: get rid of that sprocket!

it is NOT going to work with a 212 (TC or not doesn't matter)
it's clearly meant to be powered by an internally geared engine, seeing the axle likely some gy6.

Anyways, get rid of it and once you know what ratio you will end up needing, you can buy a new one (a quick guess would be 75 teeth or so depending on the rear wheel size and weight of tart/driver combo)

'sid

 

[Dustinsspace]

Sorry not sure why it is posting my pictures upside down, I am uploading directly from my cell where they are right side up
•MERGED•

well first: get rid of that sprocket!

it is NOT going to work with a 212 (TC or not doesn't matter)
it's clearly meant to be powered by an internally geared engine, seeing the axle likely some gy6.

Anyways, get rid of it and once you know what ratio you will end up needing, you can buy a new one (a quick guess would be 75 teeth or so depending on the rear wheel size and weight of tart/driver combo)

'sid

Thanks for a quick reply. Unfortunately I am completely new to this so I have no idea about figuring out what sprocket I will need. The previous motor was a gy6, as this started its life as a yerf dog 150 spiderbox...best guess is model 32092. I purchased it in hopes to be able to learn with my daughter and son as we go, but thought all I would need to do is put a Predator in there and hook up a clutch and chain and off we go. Since then I decided to do it right so we have stripped sanded and painted the whole frame, purchased new shocks, ball joints, bushings, tires, etc. Now we are to the motor and I am lost haha and a bit disappointed as my kiddos were relying on me... any idea where to go to read up on or learn how I can make this work? I am not against a different power plant either just didn’t want to brake the bank too bad, pics for what it looks like put together.
•MERGED•
FYI I flipped the pics on my phone and they still upload upside down ����

 

[itsid]

reason is fairly simple you held your phone the wrong side up when taking them.
and the landscape flag is set...

we've been through this a number of times by now..

in short: landscape is defined as 90°CCW (phone bottom edge pointing right)
portrait as 0° (bottom edge pointing down)

your phone hasn't deleted the rotation flag when you flipped it on your device
and that flag overrides the rotation information (which can be anything from 0-359°) and would display the image correctly.

Now,
what gear ratio you'll need is actually not that difficult...
with 18" rears you want to gear in the realms of 7:1 (means for every tooth on the TC sprocket you want 7 on the axle.. like 10 on the TC and 70 on the axle...)

for 16" rears you can get away with a 6.1:1 ratio
means 61 teeth on the axle for the same 10Tooth TC sprocket

'sid

 

[Joe-405]

I honestly think a 212 won’t be big enough for a spiderbox as I have one. They are kinda heavy. I would put a 390 or 420 on it.

But it might be ok with enough gearing just won’t be very quick is all.