compression? pistons or head?

I am trying to figure out it the diferance in the n/a compression verse the turbo compression.. what is it that makes the differance? i have been told bolth pistons and head.. what i am doing is bolting the 1g turboed head to my 2.4 n/a.. and i want to know if it will lower my compression?? my compression is i belive 10.5:1 right now.. anyways any help would be great! thanks
Jason

I doubt that the new head will do much for the compression, but 10.5:1 is pretty high to run much boost. If you are serious about this, I would build the bottom end with some lower compression pistons and beefier rods.

well I have already started collecting the shit I need and im getting close.. people that have done this same thing are running 8 pounds all day long without doing the bottem end.. which is plenty for me right now.. but you dont think the head will lower it any?

I would be suprised to see a +/- .5:1 difference unless you use a thicker/thinner headgasket.

Compression is all in the piston shape and the cc's of the combustion chamber. I doubt that just bolting on the turbo head will lower your compression a whole lot but do it and run it till it breaks and the you will know:wink:

oh shit was I off! i am running 8.5:1

That makes more sence

HHMMMM This makes me wonder then.. do I need a turboed head?? I know the cams are different.. and I have the 91 gsx cams.. should i just buy a non turboed 1g head.. and put my cams on it.. is there any other diferances I would need to consider?

I hate to have to bring this up again.. but I can't find any info on this.. is the head from the N/A the same as the turboed head? other then the cams... even send me to a place I can find the answer.. please!
Jason

IIRC yes they are the same minus the cams