Anyone know the stock DYNAMIC compression of a 05 LQ4?

What will it change to with a 210/218 ish cam?

how much static will i need to increase to get it back to the same?

 

If I recall, there were a couple fellas on here pretty savvy with the whole dynamic compression calculations. I'm sure its not hard to do, I just don't have the page or formulas handy. Hopefully they'll chime in here.

 

Here's the first one that came up by typing "dyanamic compression ratio calculator" into google: http://www.wallaceracing.com/dynamic-cr.php

this is the second link on that page: http://www.empirenet.com/pkelley2/DynamicCR.html

Here's the google page: http://www.google.com/search?hl=en&q...rlz=1R2ADBR_en

Don't know the stock DCR, but I'm guessing somewhere between 7.5:1 to 8.5:1?

 

i don't know when the intake valve closes or else i would have calced it myself...

 

Bump!

 

The dcr on a stock lq4 is down in the *******. Its probably about 6:1. That cam would probably raise it up to the mid to high 7s

 

what are the stock cam spec of a lq4? ???/??? .???/.??? ???+? and what is the stock CR of the LQ4. knowing that i can come up with the approximate DCR.

 

196/207 .467/.479 116 lsa
9.4:1

 

is it a +1, +2, +3, +4, etc...

 

everything I can find just says 116
Year Platform Part Number Valve Lift in/ex -in Duration in/ex LSA Timing on Cam CL

2001 LQ4 Truck/SUV 12561721 .479/.467 196/207 116 117/115