ok, the stock compression of a d16y8 is 9:1 with the d16a1 pistons the compression is 13:1. Now if i were to switch the pistons in my d16y8 with the a1's would the gains be noticable with the compression increase?
i have i/h/e at the moment on my setup, but thats negligable.
If i were to go ahead and do this, what would the pro's/con's of doing this as a N/A setup start?

would it be wise to get arp headstuds for the increased compression? change the headgasket thickness, etc.??

 

i'm not to sure about any of this, i found this:

http://www.c-speedracing.com/h...c.php

I am going by what it says. anyone with more knowlege able to shine some light on the subjec?