Interesting cam break-in

[crushnut]

Has anyone ever heard of breaking a new cam in by operating it at 2000rpm for 10min, 1200rpm for 10min, and 1600rpm for another 10min? I was always told and read to do it a 2000rpm for 20min. Can anyone back this up or does it not matter.

Thanks

 

[gingerbreadman]

Has anyone ever heard of breaking a new cam in by operating it at 2000rpm for 10min, 1200rpm for 10min, and 1600rpm for another 10min? I was always told and read to do it a 2000rpm for 20min. Can anyone back this up or does it not matter.

Thanks

I remember finding so many different ways of doing it when i was researching after installing my cam...

personnaly i say go with what the cam manufacturer suggests after all they are warrentying and standing behind it right???




-gbm-

 

[PoliceInterceptor]

Current thinking is to vary RPM, but never let it drop below a certain level. (1500-2000 depending on who or what company you are talking with.)

Also if your cam kit did not come with an oil additive (or the company doesn't sell one, Both Crane and Comp do) add a can of GM EOS (Engine Oil Supplement) to the oil before firing it off.

HTH

 

[crushnut]

Also if your cam kit did not come with an oil additive (or the company doesn't sell one, Both Crane and Comp do) add a can of GM EOS (Engine Oil Supplement) to the oil before firing it off.

HTH

If you dont mind me asking, what does that stuff do? And where can you get it.

Thanks

 

[Ronstang]

The best way to break in a camshaft is to follow the manufacturer's suggestion regardless of what anyone else tells you.

 

[PoliceInterceptor]

If you dont mind me asking, what does that stuff do? And where can you get it.

Thanks

The story is that it contains zink which has been removed from most oil, and is said to be an EP lubricant.

Isky and Lunati specifically say use GM EOS, Crane and Comp have their own "Break In lube".

I agree to follow the cam manufacturers directions, most of them say not to let it drop below a specified RPM for 20-30 minutes. Varing the RPM above that RPM still follows the directions.

What kind of cam are you breaking in?

 

[tjm73]

Or you can build (or retrofit) a roller cam. No cam break in required. And you get a little more power.

 

[crushnut]

I agree to follow the cam manufacturers directions, most of them say not to let it drop below a specified RPM for 20-30 minutes. Varing the RPM above that RPM still follows the directions.

What kind of cam are you breaking in?

Nothing yet, just researching

Thanks

 

[ratio411]

I don't like the sound of that break-in...

The reason they tell you not to let it fall below 2000 rpm for 20+ minutes is because the cam is lubed by oil thrown from the rotating parts. If you are below that rpm, not much oil is thrown on the cam during this critical time.
Dave

 

[crushnut]

The story is that it contains zink which has been removed from most oil, and is said to be an EP lubricant.

Isky and Lunati specifically say use GM EOS, Crane and Comp have their own "Break In lube".

Does anyone know where you can buy this stuff ?

Thanks

 

[PoliceInterceptor]

Does anyone know where you can buy this stuff ?

Thanks

EOS at any General Motors dealer.

Crane and comp any where you can get the cam.

 

[351LX]

I just bought GM EOS a couple weeks ago from the parts counter at the local GM dealer.It cost about 6 or 7 dollars for a small can.The parts guys said a lot of people add it to their oil at every change so it it common.