clif

I have a new cam from a supplier that would not give me the specs. I want to measure whatever to determine the specs. Can someone tell me how to measure the cam?

lucky131969

Depends how accurate you want to be. You could take some crude measurements with calipers/dial indicator, etc. If you want dead nuts, you'll have to find a shop.


http://www.andrewsproducts.com/Downl...rews_ezcam.pdf

Neil B

You can measure lobe lift, duration @.050, and installed centerline with a degree wheel and a dial indicator in the lifter bore.

clif

Thanks. I have a friend that owns a machine shop. They said they will measure it for me. They do not usually do engines, but, they have more multi-axis CNC machines than most, and CMM (Coordinate Measuring Machine) that they say can do it. I will let yall know what it turns out to be!

AU N EGL

What is / are the numbers on the end of the cam ?

Then go to the manufactures web site and look it up. There are really only 2 or 3 cam manufactures so not that hard to look up.

You should be able to get close.

clif

It is a new Comp Cam that was custom ground for a vendor; so they will not disclose the specs.

clif

Here is a picture of its end:

Neil B

Here's my guess:

CC = Comp Cams

HR117+5 = Hydraulic Roller 117 Lobe Separation with 5 degrees advance

13019R/13023R = these are probably the lobe numbers, call Comp and they can tell you the duration and lift of these lobes.

lucky131969

clif

Thank you all!

0Jon@Texas-Speed

235/251, .620/.623, 117 lsa, 112 icl

clif

Wow, How did you determine this so fast?

Do you think this will be a good blower cam?

lucky131969

Jon,
Are those numbers for LSL lobes? Just wondering.....

Comp Cams LSL Lobes

13014R 265 215 139 .355” .604”
13015R 269 219 143 .357” .607”
13016R 273 223 147 .359” .610”
13017R 277 227 151 .361” .614”
13018R 281 231 154 .363” .617”
13019R 285 235 158 .365” .621”
13020R 289 239 162 .367” .624”
13021R 293 243 166 .367” .624”
13022R 297 247 169 .367” .624”
13023R 301 251 173 .367” .624”
13024R 305 255 176 .367” .624”
13025R 309 259 180 .367” .624”
13026R 313 263 183 .367” .624”
13027R 317 267 187 .367” .624”
13028R 321 271 190 .367” .624”
13029R 325 275 193 .367” .624”

Neil B

IMO, it seems like a great blower cam for a 400+ inch motor.

clif

Thanks, my motor will be a 454 cubic inch LSX motor, with a 9.0 compression ratio.

tblu92

An engine machine shop can get the EXACT cam specs off ANY cam with a tool called a "Cam Doctor" call around and find out who has one----

Neil B

454ci will swallow up that cam no problem. It'll probably idle very smoothly especially with the wide lobe separation.