Ported/Polished TBs, What Does....
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From: D*ck ina Box
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Ported/Polished TBs, What Does....
...sealing off the fresh air port of the Throttle Body accomplish?
Curious as I'm about set to start porting and polishing my TB :cheers:
Curious as I'm about set to start porting and polishing my TB :cheers:
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From: Palm City Florida
Re: Ported/Polished TBs, What Does.... (Mean Blue Z02)
Mark, I sealed off my port for 2 reasons..
1. I did not want the PCV cutout causing turbulence inside the TB
2. I felt that fast rushing air going past the PCV opening could potentially cause an unwanted vacuum and start sucking oil contaminated air back through the throttle body..
The only reason GM tapped off that spot in the TB was they need "filtered" air to run through the crankcase.. This was the only logical place to put it without the added cost of adding a filter like I did or rerouting the PCV hoses up to the airbox.
Here is an example of the Vacuum..Shaner fills the PCV cavity then drills a hole in it.. ok..
Stick a soda straw in a can of coke.. Then take compessed air and shoot it across the top of the straw...
Coke will immediately be sucked right up the straw and out.. I did not want that to occur at WOT
[Modified by chuckster, 4:34 PM 8/15/2003]
1. I did not want the PCV cutout causing turbulence inside the TB
2. I felt that fast rushing air going past the PCV opening could potentially cause an unwanted vacuum and start sucking oil contaminated air back through the throttle body..
The only reason GM tapped off that spot in the TB was they need "filtered" air to run through the crankcase.. This was the only logical place to put it without the added cost of adding a filter like I did or rerouting the PCV hoses up to the airbox.
Here is an example of the Vacuum..Shaner fills the PCV cavity then drills a hole in it.. ok..
Stick a soda straw in a can of coke.. Then take compessed air and shoot it across the top of the straw...
Coke will immediately be sucked right up the straw and out.. I did not want that to occur at WOT
[Modified by chuckster, 4:34 PM 8/15/2003]
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Re: Ported/Polished TBs, What Does.... (chuckster)
What Chuckster said :) :)
I drilled a hole and have checked and found no OIL inside TB even with Blower. Before MOD there was a small amount but nothing to be alarmed about.
george
I drilled a hole and have checked and found no OIL inside TB even with Blower. Before MOD there was a small amount but nothing to be alarmed about.
george
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Re: Ported/Polished TBs, What Does.... (Black_Magic)
This is a guaranteed ticket into that Hall Of Fame .Keep up the good work
We are all counting on you.Set a good example!!!Dont tear up too much of that track others want to race too!! :seeya :flag :flag :flag :chevy :chevy
We are all counting on you.Set a good example!!!Dont tear up too much of that track others want to race too!! :seeya :flag :flag :flag :chevy :chevy
