Any place to look at cam lobe profiles online or do I have to get the hardcopy of the books?

**Edit** I found Comps lobes online...Any other sites have theres in PDF form so we can download and look at?

 

I got Exel but, I cant seem to get the file to work. Any advise would be aprishisted.

 

You need to first unzip the downloaded file, it is in a compressed format from probably WinZip. After you extract the file from the zip, you can open that file with Excel.

Hope this answers your question.

 

it has been a long time since anyone posted on this thread... I can't get this file to open either and the last post (in 2007) was having the same problem. Is this file still valid?

 

I have tried unzipping from two different places it was posted and it says the file is empty or invalid??? Anyone still using this?

 

apparently the .zip file was corrupt. I just tried downloading it, and got the same error. I have uploaded a fresh copy of the file.

 

Hey J-rod,

just wondering if this zip file works now? still get an error when trying to open it.

thanks.

Gav

 

it don't work for me either, says its empty??

 

something is wrong with the way the file is getting uploaded. When I compress the file into a .zip file I can open it.

When I upload it here, it appears to be the same size. But when I open it, I get a invalid archive msg. So, what I have done for right now is to upload the file with a .txt extension.

To use the file, you will need to rename it with a .xls extension.

 

Fantastic spreadsheet. I use it all the time.

Thank you so very much!

 

how do you get this to work? it's not downloading right

 

download the file which should have a .txt extension. Rename it to have a .xls extension, and then it should work in Excel.

 

that worked, thanks!

 

I'm having trouble getting this to work after dl'ing it. Just comes up with text in a strange font. Tried renaming it as suggested above with no luck.

 

Heres the FNG. I just downloaded it, and it worked great. Thank you. (and I do realize how old this thread is.)

 

J-Rod, Awesome spreadsheet, thanks for uploading this for us.

I downloaded the file from the first post, is this the latest?

Maybe my copy got corrupted because the SCR calculator had some errors. As-is, the SCR calculator does not take into consideration the piston dome/dish volume or the piston deck volume (piston in or out of the hole).

Otherwise this looks to be some good stuff to use. I am trying to do the same thing, but from the opposite direction. My spreadsheet inputs the desired CR, DCR, IVO and calculates the resulting ID at .006. I'm still trying to figure out how useful it is (I'm new to cams), but I'll post it if anything productive comes out of it.

 

The "name change" works . . .

Simply change it from VE calculator.txt to VE calculator.xls

Now, once I learn how everything works, I'm sure it will be incredibly useful to me !

Thanks to the OP and all the others !

 

What about a calculator that allows you to enter bore, stroke chamber cc, and SCR, etc . . . Where you can "plug in" the "desired DCR" and it will calculate the needed IVC to reach that DCR, based on the combination ?

 

I wrote an .xls specifically for the LS engines, where you just select from pre-entered values (bore, stroke, and rod length), and use sliders to enter piston oversize, static CR, and intake closing point ABDC.
Results are effective stroke, DCR, and CCP (gauge and absolute), and approximate torque at 1,000 RPM.
E-mail me for a free copy.

 

I've tried to use this but it wouldn't open for me.
if anyone has it that works can you please plug my engine details into it and let me know what the results are please.

Ls1 3.903 bore
3.622 stroke
6.3" rods
6cc dome top pistons
.007 out the hole cold zero at operating temperature
67cc chamber heads
Cam @ .006 is 277/289 109 in take C/L Exhaust 112 C/L
3.930 gasket bore
.040 thick
Intake valve closes@ 69.44 @ .006
Let me know if you need any other info please.