Lifter rise at TDC

[F-BIRD'88]

They don't because they want you to degree the cam in based on using the .050" lifter rise events method.
Why?
1. you can check and know you got the camshaft you ordered.
2. You can check and know in degrees if its out of time and by how much and by how many Degrees +/- you then need to adjust it. It is your most accurate method to check and move it as required, when you are installing your camshaft in your engine.
Barring owning a 6 foot diameter cam degreeing wheel if you can get it dialed in withing ½ degree ± you did a great job.

[engineman1642]

Erik Bolander has always answered any questions i have at Howards since moving there from Erson.is that who you talked to?

[dannobee]

There are a number of digital sensors and displays out now that obviate the need for a huge degree wheel.

On Porsches, a popular one is the Stomski Racing DigiDix digital degree wheel (although you can buy a generic rotary sensor and display for less than $100). They're accurate to within a tenth of a degree. The one that I use came with a 3D printed adapter that bolts to the crankshaft at the flywheel side.

It really makes cam timing (and checking P-to-V clearance, and accurately finding TDC) a simple, no brainer task.

[Walter R. Malik]

They don't because they want you to degree the cam in based on using the .050" lifter rise events method.
Why?
1. you can check and know you got the camshaft you ordered.
2. You can check and know in degrees if its out of time and by how much and by how many Degrees +/- you then need to adjust it. It is your most accurate method to check and move it as required, when you are installing your camshaft in your engine.
Barring owning a 6 foot diameter cam degreeing wheel if you can get it dialed in withing ½ degree ± you did a great job.

Sometimes, when installing a camshaft in an already built engine ... you just have to install that camshaft degreed wherever it fits because valve to piston is the determining factor.

[hoffman900]

You need to use the .050" lifter rise events as stated on the cam card to dial in your cam. On MANY cams this is expressed as if "straight up" cam phasing and it is thus UP TO YOU to then (check and) phase the camshaft ± to get it in the right-best installed position. "advance". (or retard)
Your cam grinder can advise, how much, if you need help.
As a default most cams for the popular legacy pushrod V8's most of us deal with run best overall with a bit of "advance" dialed in. 4° to 6° is typical. But do not assume your cam was ground with this dialed in already.
If you want it installed correctly use the .050" lifter rise events method.

Oy vey can you read? I will re-state...what if the cam card was written WRONG straight from the guys who made it???? 99% of all cam cards are wrong!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

I think a bunch of grinders out there are hoping no one measures all the lobes either

[F-BIRD'88]

They don't because they want you to degree the cam in based on using the .050" lifter rise events method.
Why?
1. you can check and know you got the camshaft you ordered.
2. You can check and know in degrees if its out of time and by how much and by how many Degrees +/- you then need to adjust it. It is your most accurate method to check and move it as required, when you are installing your camshaft in your engine.
Barring owning a 6 foot diameter cam degreeing wheel if you can get it dialed in withing ½ degree ± you did a great job.

Sometimes, when installing a camshaft in an already built engine ... you just have to install that camshaft degreed wherever it fits because valve to piston is the determining factor.

True true

A Big Block chev with factory dome pistons is an example.

I believe the Modern EFI Dodge Hemi is another.

[CamKing]

Erik Bolander has always answered any questions i have at Howards since moving there from Erson.is that who you talked to?

I agree. Howards is normally great with customer service.

[RAS]

I won't knock Howards. I wanted the LS3 cam ground on 113 and it's a catalog item for them so it was a pick of convenience. I e mailed them but got know where. No big deal. Just a simple ask. I like math so if there was a formula to determine this, I'd like to give it a go. It doesn't exist so were good. The C.O.M.E. video was very enlightening. I had never seen someone check a cam that way before. I think it's brilliant. If I were a cam grinder, I would furnish that info. It takes into account the cam drive. I like it. Thanks everyone for your comments. Cheers

[dannobee]

"Intake lift at TDC" is how air cooled Porsche's were timed since the beginning. Cam specs are given like, "Set @ 5.3mm lift with 0.1mm valve lash." There aren't any timing marks.

https://www.youtube.com/watch?v=24AeQcv_JtE

[superpursuit]

I won't knock Howards. I e mailed them but got know where.

Why don't you try calling them. So simple really!