Switching to a 420 predator from 212

[Camcosby]

I have a 212 predator already with a aftermarket air filter, .37 jet, and after market header. I changed the gear ratio and it stalls very bad. So I just ordered a 420 predator because I wanted some bigger and accelerate faster. I just wanted to know if my aftermarket parts from 212 will fit on my new 420?

 

[chancer]

Maybe your Air filter.
Did you already order the 420.
There is a company on ebay selling Powerland 420 engines for 169.
A few guys here just bought them.

 

[Hellion]

Lol, no idea how to make it accelerate faster, so you just toss it aside.

I admire your callousness.

 

[Camcosby]

Yes I ordered the 420 earlier today... I'm trying to find out what valve springs to use and how wide my jets to use? Its hard to find info on a 420 on modifications.

 

[chancer]

It is hard to find. but 4 or now have this engine. stay tuned here, you are on the cutting edge!

 

[mckutzy]

So what was the vehicle in question you are using?
What is your gear ratio(clutch and rear sprocket tooth counts, Also include a jackshaft tooth counts if you have one)?
Clutch or TC?

Your motor might aswell be fine, just a few things are the problem...

Fill in your profile so we can tell where abouts you are located.

 

[daddyant716]

I have both engines 2 420s and a hand full of the 212s, the part are not interchangeable, ver different carbs and and exhaust, i have a stock and modded version of the 420, u will be happy with it, i highly recommend picking up a 40 series torque converter to mate with this engine with a 7/8 drive belt, it can handle the power, 30 series wont, you'll keep eating up the belts, check out these sites for up grades they work well :the predator 420 is base off the Honda GX390
http://www.nrracing.com/category-s/2145.htm
http://www.bmikarts.com/Go-Kart-Parts-Kits_c_668.html
http://gokartsusa.com/GTC-40-Series-Gokart-Torque-Converters.aspx
what a ride are you putting the engine on?
Predator engines are underrated that 420 labels @ 13hp, really rates @ 15hp
212 @ 6.5 hp, really @ 8hp
Also if you plan to do a governor removal, you'll have to change out the flywheel, either billet or a cheaper honda 390, the predator will cut loose and grenade your engine, it's not designed for high rpms.
http://www.everestpartssupplies.com...hqBvlZdfp7bUvD5MIlJqbij3byH87aeUiwaAsDi8P8HAQ
another great website for hopup parts : http://www.arcracing.com/gx390/

 

[ultralight01]

Also if you plan to do a governor removal, you'll have to change out the flywheel, either billet or a cheaper honda 390, the predator will cut loose and grenade your engine, it's not designed for high rpms.
http://www.arcracing.com/gx390/

Don't the valve springs float in the 420 too, before any damage occurs? I know they do in the 212. If they float in the 420, you will NOT have a grenade. I wouldn't worry. CarsAndCameras removed a governor from a 420 and didn't have issues.

 

[landuse]

Don't the valve springs float in the 420 too, before any damage occurs? I know they do in the 212. If they float in the 420, you will NOT have a grenade. I wouldn't worry. CarsAndCameras removed a governor from a 420 and didn't have issues.

You are absolutely correct!!

 

[Jrgunn5150]

I ran mine on the garage floor and I didn't die, so it must be ok lol.

---------- Post added at 06:56 PM ---------- Previous post was at 06:56 PM ----------

I only got 5100 out of it though, but it's stock filter, jets, muffler right now.