twin charging [Archive] - Chevy Cobalt SS Forum : Chevrolet Cobalt SS Forums

: twin charging


Lil-devil86
05-26-2008, 08:50 AM
so i am planing on doing a supercharger/turbocharger build but i am woundering what should i be looking at in the aspect of compression ratios, and if the head can withstand the pressure

all_motor_mike
06-03-2008, 10:18 AM
so i am planing on doing a supercharger/turbocharger build but i am woundering what should i be looking at in the aspect of compression ratios, and if the head can withstand the pressure

first of all..........hi everyone im new here. ok now that thats out of the way, well how much boost do u plan on running? stock compression on them is 9.5:1 isnt it? with a high boost high hp build in the plans i would suggest a comp ratio of about 8.5:1. but thats just my opinion, and yes the head can take the pressure.


mike

cobaltssredtint
06-04-2008, 12:53 PM
he is right, it all depends on how much pound of preessure you plan on running...

mrphoto103
06-05-2008, 07:03 PM
there is a big thread about this going on on RLF and shortbus since ZZP released their kit. Pretty incredible turnout actually