stock dimensions..

[Turbo6Smackdown]

Was wondering the stock diameters for the 87's crossover, and maf pipe.

Also, can someone explain to me more about this pressure drop theory? From what I've gathered, if you expand the volume of something after the turbo, as in the intercooler, or expand the piping diameter after the turbo, youve dropped the air velocity/pressure. so now the air going to the throttle body is coming in at a slower rate, thus making your turbo tad less efficient now. am i missing anything?
i have a bone stock setup, and was wondering what an 'intercooler and a half' would do to my intake velocity. would i be slowing things down a bit?
is the duttweiller IC neck guilty of this?

 

[bison]

Was wondering the stock diameters for the 87's crossover, and maf pipe.

Also, can someone explain to me more about this pressure drop theory? From what I've gathered, if you expand the volume of something after the turbo, as in the intercooler, or expand the piping diameter after the turbo, youve dropped the air velocity/pressure. so now the air going to the throttle body is coming in at a slower rate, thus making your turbo tad less efficient now. am i missing anything?
i have a bone stock setup, and was wondering what an 'intercooler and a half' would do to my intake velocity. would i be slowing things down a bit?
is the duttweiller IC neck guilty of this?

Pressure drop will be more noticeable at higher rpm. At low rpm the air is moving slower through the system and will have time to stack up before it enters the cylinders. There should be a slight pressure drop caused by the cooling of the air as it flows through the intercooler. The dutt neck has a slight positive effect on pressure drop. You have to look at the cfm flow through the intercooler as well as the pressure drop when choosing an intercooler based on efficiency. Adding more volume to the system will increase spool times a little but not much imo. Especially if the torque converter is right for the application. Also high volume doesnt necessarily mean high flow. If it is of higher volume than it better be higher flow.

 

[Turbo6Smackdown]

i see. then ill stick with my stock intercooler. the quickest absolute spool time/throttle repsonse is the only thing im after during this phase.