Anyone got pics of their drilled air box . . .
#1
Three Wheelin'
Thread Starter
Anyone got pics of their drilled air box . . .
I think many of us would be curious to see what various people have done to their air boxes in the name of "drilling" them? Is there a method to this wonderful madness?
Any pics would be greatly appreciated by the non-drilled contingency.
Any pics would be greatly appreciated by the non-drilled contingency.
#2
Rennlist Member
Originally Posted by etom
I think many of us would be curious to see what various people have done to their air boxes in the name of "drilling" them? Is there a method to this wonderful madness?
Any pics would be greatly appreciated by the non-drilled contingency.
Any pics would be greatly appreciated by the non-drilled contingency.
Like this
#3
Three Wheelin'
Thread Starter
I am sounding kinda dumb here, but do you mean cut off the horn, leaving more or less a flush hole in the side of the box facing back? Sorry, but the pic does not make this clear. It also sounds like you cut off more or the whole of the face of box, rather than drilling holes. Correct?
Thanks again. The "drilling" has a bit of mystery surrounding it for us novices, perhaps because no two people have done it the same way . . . ?
Thanks again. The "drilling" has a bit of mystery surrounding it for us novices, perhaps because no two people have done it the same way . . . ?
#5
Three Wheelin'
Thread Starter
Thanks--I see that you cut out the whole of the front face, rather than just drilling holes. Also, in the link, you show that the horn is left on.
Thanks again....
Thanks again....
#6
Burning Brakes
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OK. I am confused. I thought there was a general consensus that drilling or cutting the airbox didn't add to power! There have been so many threads on this, I am confused!
#7
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Originally Posted by SimonExtreme
OK. I am confused. I thought there was a general consensus that drilling or cutting the airbox didn't add to power! There have been so many threads on this, I am confused!
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#8
Nordschleife Master
Originally Posted by Andy Roe
I don't think I've read any confirmation that it adds any power at all. It does add a nice intake roar when accelerating hard though. If you're thinking of doing this though, try to have a ride in a car that's had it done before going ahead as not everyone likes it. Better still, buy a spare cover that's already been drilled so you can change back to stock.
#9
Three Wheelin'
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Cutting the Air box is a race mod with a little virtue .
For road use there will be an inlet temperature rise in slow city driving . If you have a Hammer/ Doug software system pull the lid off, use tape to hold the filter element in place and do some measurements . In the summer 10-20 C temp rise is common.
Hotter intake air makes LESS power . After a bit of faster driving the temp will go back to correct. The inlet temp sensor time loop is a farly slow response .
The choice is 1. Noise is the most important feature or 2. I want best performance !
Sorry to be a kill joy but this is a very simple technical decision !!
Geoff
For road use there will be an inlet temperature rise in slow city driving . If you have a Hammer/ Doug software system pull the lid off, use tape to hold the filter element in place and do some measurements . In the summer 10-20 C temp rise is common.
Hotter intake air makes LESS power . After a bit of faster driving the temp will go back to correct. The inlet temp sensor time loop is a farly slow response .
The choice is 1. Noise is the most important feature or 2. I want best performance !
Sorry to be a kill joy but this is a very simple technical decision !!
Geoff
#10
Burning Brakes
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Originally Posted by Red rooster
Cutting the Air box is a race mod with a little virtue .
For road use there will be an inlet temperature rise in slow city driving . If you have a Hammer/ Doug software system pull the lid off, use tape to hold the filter element in place and do some measurements . In the summer 10-20 C temp rise is common.
Hotter intake air makes LESS power . After a bit of faster driving the temp will go back to correct. The inlet temp sensor time loop is a farly slow response .
The choice is 1. Noise is the most important feature or 2. I want best performance !
Sorry to be a kill joy but this is a very simple technical decision !!
Geoff
For road use there will be an inlet temperature rise in slow city driving . If you have a Hammer/ Doug software system pull the lid off, use tape to hold the filter element in place and do some measurements . In the summer 10-20 C temp rise is common.
Hotter intake air makes LESS power . After a bit of faster driving the temp will go back to correct. The inlet temp sensor time loop is a farly slow response .
The choice is 1. Noise is the most important feature or 2. I want best performance !
Sorry to be a kill joy but this is a very simple technical decision !!
Geoff
#11
Rennlist Member
Originally Posted by Red rooster
Cutting the Air box is a race mod with a little virtue .
For road use there will be an inlet temperature rise in slow city driving . If you have a Hammer/ Doug software system pull the lid off, use tape to hold the filter element in place and do some measurements . In the summer 10-20 C temp rise is common.
Hotter intake air makes LESS power . After a bit of faster driving the temp will go back to correct. The inlet temp sensor time loop is a farly slow response .
The choice is 1. Noise is the most important feature or 2. I want best performance !
Sorry to be a kill joy but this is a very simple technical decision !!
Geoff
For road use there will be an inlet temperature rise in slow city driving . If you have a Hammer/ Doug software system pull the lid off, use tape to hold the filter element in place and do some measurements . In the summer 10-20 C temp rise is common.
Hotter intake air makes LESS power . After a bit of faster driving the temp will go back to correct. The inlet temp sensor time loop is a farly slow response .
The choice is 1. Noise is the most important feature or 2. I want best performance !
Sorry to be a kill joy but this is a very simple technical decision !!
Geoff
#13
Burning Brakes
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Originally Posted by fstockcarrera
I'm just reporting the dyno results that Geoffery and I ran.
As for using it on race cars, in that case you shouldn't lose as you aren't sitting in traffic with heat build up in the engine bay.
#14
Three Wheelin'
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Bob,
Race is a different situation to road in air temp terms. The 911 rear motor situation adds complication to the whole scene !
In the end I guess your happy with what you are happy with !! and why not.
Geoff
Race is a different situation to road in air temp terms. The 911 rear motor situation adds complication to the whole scene !
In the end I guess your happy with what you are happy with !! and why not.
Geoff