Calderone

Hi guys,i've been researching the LPE219 Camshaft for a long time,me and a friend decided to buy a pair and we received them today.-
What caught my attention is that its actually a CompCams LT1 Cam regrind,what is a regrind ? im not sure but i didnt know that Lingenfelter didn't produce this cam as their own. Not a bad thing,but it surprised me.- Seems like Accel did their own version too,nowadays every company seems to belong to the other company,Accel,Edelbrock producing the same bases...its crazy ! ! !

Well,to make this story short i have always liked to save specs pics
and i found very interesting the 219's evolution.-
Im not sure why they do this changes and what are the benefits
There are small changes for sure.-
On top left is our cam,with a CompCams sheet code 07-999-3 all the others are specs sheets saved from this and maybe another boards.-

What caught my eye is :

All the cams are 112 lobe center
Duration at 050 on every cam is 219 while the green accel sheet is 218what would this feature vary ?
Our lift ..is .526 while all the others got .525 ..why we got .1 more lift ?
Our lobe lift is .351 while all the others got .350 same thing as the valve lift ...
i dont know if our cam has some degree on it ..how can we know that ?

Another point apart.... my friend already has a cool set of Gold Crane 1.5 Roller Rockers and Super Ram,is it worth for him to buy a set of 1.6's ? He is going to Supercharge the engine (He already have a VortechV2) and he is building a 383.-

USAsOnlyWay

I know that some at least were ground by Erson cams and I believe those had 4* of advance ground in. I don't know when that was or how to ID them. I also know LPE had Crane grind some cams for them, their 213 was also a Crane Blue Racer 240h(???) can't remember now.

bjankuski

All those cams are essentially the same, the only real difference is where the cam card is specifing the installed intake centerline. Two cards are calling out a intake centerline of 112 degrees and two are calling out an intake centerline of 108 degrees. The intake centerline can be moved to any position when you install the cam by degreeing the cam to whatever number you desire. My own experience with this cam and the superram tells me that you want the intake centerline at 108 degrees.

Calderone

so it has nothing to do with its installation ?
thanks

bjankuski

It has everything to do the the installation. The cams are the same but it depends where you install the intake lobe. Two cam cards are showing the intake CL installed position at 108 degrees, two are showing the intake CL installed position at 112 degrees. If you install all the cams at the same intake CL the cams are the same. If you look at the cam cards you can tell that the cams are ground identical but the insalled CL are listed four degrees appart.

I recommend that you install the cams at an intake CL of 108 degrees for best perfromance with the superram. Do not use the 112 CL cam numbers when you degree the cam unless you want to install the cams at 112 intake CL.

Calderone

What are the differences between 112 and 108 degrees in performance ?

Kubs

If you look at the crank gear when installing the cam there should be multiple slots to put the key in. Line up the one for 4* and that will take you from a 112 centerline to a 108 like mentioned.

Calderone

Thanks,i will take pics when i put it together
Now,what's the dramatic difference from going to 108 degrees ?
BTW ...at the same time i will be installing a double roller comp cams timing set
so that set has timing marks on there,those might help as well,right ?

Kubs

Yes that is what I was talking about. Those hasmarks corrspond to dfferent keyways or ways to install the gear.

Calderone

Thanks,what are the differences when installing it at 112 degrees or 108 ?
I mean where is the 108 degree spec or is a trick ?
Sorry im new in he 219LPE cam-degreeing department...

89onlyZ51

It cracks me up how cam makers confuse their own terminology! Look at the Accel card, for instance.

"Cam lobe center" and "intake center line" as written sound like they mean the same thing, yet they show two different measurements.

The 112 number is the number of degrees between the peak intake and peak exhaust lift on the cam and has a lot to do with overlap in the cam. You cannot change this; it's ground into the cam. This is commonly called the Lobe Seperation Angle (or, sometimes the lobe center ANGLE - I think it's confusing to just say lobe center, but that's JMO).

The 108 number is the recommended installed cam phasing (and the number you should get if you lined up the dots on your sprockets). This is the crank position in degrees where #1 intake lobe is at max lift. This is commonly called Intake Centerline or Intake Lobe Center.

When you "degree in" a camshaft, you're verifying the 108 number, or you can also install the cam advanced or retarded and degree in to some other number.

USAsOnlyWay

Basically, advance a cam will leave you with more torque and mid range power. Retarding, gives you more upper end horsepower.

I think this is what you are looking for?

I wouldn't say there is a drastic change, you are still rearranging the "mound of dirt" that makes up your power band.

And realize, if you install dot-to-dot (not degree the cam) that one cam is ground with 112 ICL and if you install the other cam in the same manner, you will have it installed at 108 ICL. In other words, if you don't degree the cams, don't mix up those cam cards!

Calderone

I think i better install it stock,dot to dot ...so i can distribute the power in a fair way