Peak A Boost

Do turbo intake manifold's rely on the velocity of the air or the amount of the air coming in?

Would boring out the throttlebody and intake manifold create a larger area for the air to travel through, therefore creating "lag".

Would smaller runners = faster throttleresponse/faster sppol time?

Its kind of a hard question to type out.

Thanks

Peak A Boost

TTT

wantboost

iTrader: (2)

from what i know. you are right both times.its kind of liek altering chrage pipe diameter. smaller pipes = faster spool. larger pipes = more flow but more time to pressurize system. although porting the intake manifold wouldnt really make any noticeable difference in spool time. installing a larger throttle body and piping will

HTH

Peak A Boost

Would the lag negate the gains? Throttlebody wise?

Thanks, sorry if I sound like a n00b, but Im just trying to understand

wantboost

iTrader: (2)

i dont think you'll see that much of a difference unless you are making upwards of 550-600hp. for most people out there 2.5" piping and stock throttle body is enough. you hve to remember once you pressurize the intake tract, it doesnt matter how big or small the opening is, the air has no choice but to go in. so the gains that would otherwise be noticed on an n/a setup are lost here beacuse you are forcing air into the motor, not sucking it in.

Peak A Boost

Ok, that helps alot.

Thanks!

Joseph Davis

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by wantboost &raquo;</TD></TR><TR><TD CLASS="quote">i dont think you'll see that much of a difference unless you are making upwards of 550-600hp. for most people out there 2.5" piping and stock throttle body is enough. you hve to remember once you pressurize the intake tract, it doesnt matter how big or small the opening is, the air has no choice but to go in. so the gains that would otherwise be noticed on an n/a setup are lost here beacuse you are forcing air into the motor, not sucking it in.</TD></TR></TABLE>



Turbo or NA, you are forcing the air in every bit as much as the engine sucks it in. Examine air pressure vs. "vacuum" created by intake stroke. Regardless which path you choose, pumping losses apply; a turbo will not overcome those. Enough pumping losses and you'll find knock limit drastically lowered.