Trimming stock air box
Senior Member
Joined: 10-21-2008
Posts: 1,831
From: hemet, calif.
Looks good Jay-
Being ram-air, it should get enough air. But for the true venturi effect, IMO the openings could be enlarged like Vettes. etc. (not as big) but funnel type openings..
And personally I would like the vacuum pipes to be bigger to start with..
The limiting of the venturi effect is when air reaches a state of choked flow..
Being ram-air, it should get enough air. But for the true venturi effect, IMO the openings could be enlarged like Vettes. etc. (not as big) but funnel type openings..
And personally I would like the vacuum pipes to be bigger to start with..
The limiting of the venturi effect is when air reaches a state of choked flow..
Platinum Member
Joined: 01-09-2007
Posts: 16,081
From: SE USA
That will indeed add the venturi effect. have you been driving in any heavy rains ??
Senior Member
Joined: 10-21-2008
Posts: 1,831
From: hemet, calif.
Senior Member
Joined: 03-21-2011
Posts: 101
From: Hammond, Indiana
Air Box Cutdown
I like the looks of all of the air box mods you folks have done. I am wondering though if any of you have seen a higher DIC coolant temperature than before you modified your air boxes. I'm trying to reason in my feeble little mind why GM made that thing soooo big. Could it have anything to do with maximizing the air flow over the engine? Just wondering. 
Senior Member
Joined: 10-21-2008
Posts: 1,831
From: hemet, calif.
Its called job security for so many Engrs. make it complicated then Mgt. doesnt know how to change it?
Last edited by jay loukakis; Jul 28, 2011 at 08:26 PM. Reason: my temp. has been a little lower even tho the outside temp is higher.
Platinum Member
Joined: 01-09-2007
Posts: 16,081
From: SE USA
IndianaJ.J.-
That may be true for some motors, to slow the passing air to help cool the head etc..
I am sporting a GMPP CAI, & think it that was an issue GM would not have designed the GMPP CAI, like a trimmed down box..
Just sayin..
That may be true for some motors, to slow the passing air to help cool the head etc..
I am sporting a GMPP CAI, & think it that was an issue GM would not have designed the GMPP CAI, like a trimmed down box..
Just sayin..
Thread Starter
Senior Member
Joined: 12-06-2010
Posts: 134
From: shamokin, pa
our motors are liquid cooled, unlike original VWs and corvairs. more or less air around the engines won`t do stink unless it`s liquid nitrogen or a flame thrower. have not seen any temp changes on mine unless you consider it being in upper 90`s lately. but i do notice crisper response from long pedal and a tad better mileage from the cold air intake i set up
Last edited by tntwolt; Jul 30, 2011 at 10:51 AM. Reason: added something
Senior Member
Joined: 10-21-2008
Posts: 1,831
From: hemet, calif.
Modded stock air box.
Now that Im getting cold air from above the radiator, I just put in the K&N filter and drove around town for awhile outside air temp. 90of lifted the hood and felt the metal tubes the first half coming from the intake was cooler than the outside air as I moved up the tube it was warmer as I got to the tube closer to the air box the temp., was warmer so the Venturi effect is working.