this might sound stupid or good...

i was thinking...since the intake manifold has hoses for vaccum..such as the brake booster..front and rear vavle covers etc... and since the maf does not control that air going in ..wut if we routed all the hoses infront of the maf(with oil catch cans for the valve cover hoses so no oil messes up the maf) so it can calculate all the air going into the engine...make a differnce or no?

 

that doesn't make sense to me...... the air travelling through any part of the vac. system has been monitored by the MAF, it all comes in through the intake and past the MAF sensor in order to reach those vac lines...... doesnt it? any unmonitored air in the vac lines would create incorrect A/F ratio ( like a vac leak) there should be nowhere else other than the intake where air is entering the intake and dispersed into the vac lines other then through the intake which means, its monitored.

 

well, for starters, you'd have a really sh!tty idle and no brakes

 

thats to complicated, probably not worth it if there is any gains.

 

no the lines arent going threw the maf... so it is unmeterd air

how? ull still have vaccum since ur just moving the lines further up the intake..so air will still suck for the brake booster etc.
probably just an idea

 

not a bad thought, but there's no vacuum before the throttle body

 

^^ how isnt their? air is still getting sucked in

 

Vacuum comes after the throttle plate. When the throttle plate is closed is when the engine produces the most vacuum. Hence, why diesels don't have vacuum systems, there's usually no throttle plate (so they have vacuum pumps and such). As for unmetered air, sure it's metered. It's not pulling air into the motor from the outside, it's just pulling on a plunger or some other type of vacuum actuated device. The only time it's unmetered is when you have a vacuum leak. Then it becomes unmetered air, when the MAF is unable to see the extra air coming in.

http://en.wikipedia.org/wiki/Engine_vacuum

 

Open up your FSM regarding the recirculation system. Should give you some great insight into the feedback you're getting.

For example, depending upon whether the car is idling or under throttle will determine which direction air is circulated through the the system (through the block).

Actually, in terms of what I THINK you are trying to accomplish.....here's a thought. Just install a GOOD oil catch can on both sides of the system (PCV side and line that runs to the Helmholtz) would illiminate sucking oil into the intake. Blowby gums up the inside of the intake.

I know you're talking about what you believe to be vacuum issues, but the only real issue, speaking regarding a non-boosted engine....is the pulling of oil into the intake. Otherwise, any air you are assuming (the very little that exists) inside the brake booster and other vacuum lines.....is gone as soon as the engine begins to crank.

 

veery good info you guys are giving... now i see that its useless to try lol