Performance Cam Question

[RPM Motorsports]

What about the lb7 guys using lbz and newer pushrods and lifters, to get away from the hollow stuff ?

 

[Sledheadxp800r]

My question is Why wouldn't you upgrade the pushrods while you're in there?

 

[emiller3]

We still use stock push rods in an lmm with over 1000hp and no issues. But if you feel like spending the.extra coins , why not

 

[emiller3]

My question is Why wouldn't you upgrade the pushrods while you're in there?

How many people have had problems with stock push rods?

 

[Rhall]

I would say cams really shine in sled pulling. Getting in the right rpm range helps a ton. I run stock pushrods, never had a problem.

 

[Rhall]

And the right cam also makes a HUGE difference in lighting a big single.

 

[05chevy]

I think for the price of some of these cams that are in some of these trucks making big power and only costing $600-750 for a awesome cam. Why not. Just my opinion.

 

[Rhall]

Mine was $250

 

[sweetdiesel]

Aftermarket cams spool much better why use the stock cam?

Probably cuz they don't need to add valve reliefs

 

[RPM Motorsports]

Mine was $250

Base ground stocker?

 

[Rhall]

Base ground stocker?

yes

 

[paint94979]

ya im not spending 800$ on a regrind... but thats me :thumb:

 

[SmokeShow]

who gets $800 for regrinds?!?!

Mine was the same as Rob's. Wish I knew how his compared to mine.

 

[WisconsinHick1]

What's a base ground stocker?

 

[whytry]

they grind the base circle to get the extra lift and duration basically it is like adding matierial in a way:thumb:

 

[WisconsinHick1]

Oh ok I see. So a mild cam but built from your stock cam.

 

[paint94979]

who gets $800 for regrinds?!?!

Mine was the same as Rob's. Wish I knew how his compared to mine.

Obviously not me cheech :thumb:

 

[MarkBroviak]

How many people have had problems with stock push rods?

Had a guy sled pulling this last season bend over half of them from spinning 4800++rpms. If I build a motor it gets chromoly pushrods, I don't trust the stock ones.

 

[whytry]

If I was building a 20k motor would not trust stock pushrods

 

[GeneralTJI]

Another thought that is possibly as important if not more (worth doing before a cam upgrade) would be valve springs from what I gather!?

At what point of RPM and boost does a set of springs really come into effect... from what I have read, higher boost and higher rpms (3500-4000 and obviously higher) this starts to be a real issue? No personal experience here, just what I've picked up....