Predator 212 - Cam Replacement

[HDBobbers]

I'm about to get started on my 212 overhaul, installing a billet flywheel, rod, and heavy springs, but i need to ask the question...

Is it recommended to replace the cam as well? I think the non-hemi has a plastic cam wheel. I havent read anything akin to the recommendations that the rod and flywheel get.

 

[astrowrench]

Depending on which eng.you have 68120.69730 new or early, 60363 A Mod 2 from Dyno will probably do what you want Have It ground 4* advanced and its a torque monster Actually I have a brand new extra one here for all engs.EXCEPT HEMI And I'm in CT also have Champion rockers + more PM me Please :thumbsup:

 

[Camjamsdad]

I don't know why you wouldn't swap cams while you're in there. It's the one part that makes it the most power. Rave reviews on the Black Mamba jr. I went with the mod 2. Next time I open the case I'm thinking of trying the Mamba.

For $23. check out the champion rockers. Stock rockers seem sloppy and a weak link

 

[HDBobbers]

I was really planning on doing it anyway. Relatively cheap swap anyway. I just didnt know if they had the possibility of catastrophic failure like the flywheel and rod. It's not a large scale item, so i didn't figure it would turn into shrapnel, but rather just fail. Hadn't read anything on it, so figured i'd throw it out there.

 

[vwfan79]

If you run 26# springs on a stock rod it will flatten the lobes and cause the engine to over heat and melt the rod to the crank. Don't ask me how I know.

 

[HDBobbers]

26# springs? I have 18s sitting here on my workbench ready to go in. Figured they'd be sufficient. Am i wrong?

 

[vwfan79]

The 18# springs will work good just was saying you don't want to go any heavier on a stock cam.

 

[HDBobbers]

Cool. Thank you sir. I appreciate the heads up, and you definitely answered my question as to "should i replace the cam"

 

[Plunder]

Hmmm, billet flywheel - ck, billet rod - ck, heavy springs - ck,
it's lighter and it's gonna snap, but you're not telling us everything....

 

[HDBobbers]

The first rule of mini bike club is you don't talk about mini bike club.

 

[Dragbikemini]

Watch for coil binding with high lift on 18 lbs springs. 18 lbs springs are stock gx140 springs and are made for that head. the spring perch is lower on a 140 head so the springs wont bind Dont ask how I know! :laugh: