supra5677
Pro
Posts: 1279
|
posted April 03, 2010 01:52 PM
VENT WHOLE FOUND IN FRONT OF AIR BOX?
I finally got around to looking at the inside of the air box with the air filters out. I found what appears
to be a vent whole in the very front of the air box. Its about a half inch round. Does anybody know what
this is for and where it vents to?
supra
   
|
KZScott
Needs a life
high on speed
Posts: 7235
|
posted April 04, 2010 03:51 AM
i have my motor out, ill have a peek today
____________
01 ZX-12R 8.84 @ 156.3 no bars, DOT tires. Pump Gas, NA.... turbo 8.47 @ 164.
00 ZX-12R 8.62 @ 165.2 no bars, slicks, Pump Gas, 55 shot.... turbo 8.32 @173
00 ZX-12R Fastest NA Kawasaki in the world 1: 222.046 1.5: 226.390 Loring AFB
00 ZX-12R street turbo 1: 227.9 1.5: 234.1 Loring AFB
00 ZX-12R LSR turbo 1: 263.1 1.5: 266.5 Loring AFB Worlds fastest ZX-12R
CMG Racing RCC Turbos
|
Shane661
Needs a life
Posts: 11494
|
posted April 04, 2010 04:11 AM
There is a hole at the back of the steering head, if I recall (I have photos somewhere). It needs closed for high boost turbo apps, I believe.
It's been a few years since I looked at it, this is kind of old stuff...
|
KZScott
Needs a life
high on speed
Posts: 7235
|
posted April 04, 2010 05:23 AM
not even close to 1/2 in, more like 1/4
____________
01 ZX-12R 8.84 @ 156.3 no bars, DOT tires. Pump Gas, NA.... turbo 8.47 @ 164.
00 ZX-12R 8.62 @ 165.2 no bars, slicks, Pump Gas, 55 shot.... turbo 8.32 @173
00 ZX-12R Fastest NA Kawasaki in the world 1: 222.046 1.5: 226.390 Loring AFB
00 ZX-12R street turbo 1: 227.9 1.5: 234.1 Loring AFB
00 ZX-12R LSR turbo 1: 263.1 1.5: 266.5 Loring AFB Worlds fastest ZX-12R
CMG Racing RCC Turbos
|
Texas12R
Zone Head
Posts: 545
|
posted April 04, 2010 05:40 AM
Well I didn't measure it but from the volume
check I'm guessing about 12- 13 mm
I'm also going to guess it's just a part
of the casting process...
|
KZScott
Needs a life
high on speed
Posts: 7235
|
posted April 04, 2010 05:58 AM
i have 2 holes, one is covered by heat tape in the pic. maybe my frame is different?
____________
01 ZX-12R 8.84 @ 156.3 no bars, DOT tires. Pump Gas, NA.... turbo 8.47 @ 164.
00 ZX-12R 8.62 @ 165.2 no bars, slicks, Pump Gas, 55 shot.... turbo 8.32 @173
00 ZX-12R Fastest NA Kawasaki in the world 1: 222.046 1.5: 226.390 Loring AFB
00 ZX-12R street turbo 1: 227.9 1.5: 234.1 Loring AFB
00 ZX-12R LSR turbo 1: 263.1 1.5: 266.5 Loring AFB Worlds fastest ZX-12R
CMG Racing RCC Turbos
|
supra5677
Pro
Posts: 1279
|
posted April 04, 2010 05:05 PM
The hole I'm referring to is inside the air box by the steering head. Why is this hole there? Will it cause us to lose ram pressure?
|
Texas12R
Zone Head
Posts: 545
|
posted April 05, 2010 05:57 AM
this is the casting hole in the steering head
this is the boss for the ram air well nut...
They are open to the air box... A very small
potential for a leak
this is the radiator mounting cast in cross member
on 02-05... It would be open to atmosphere... Large leak
potential.... Measured 7 mm (.290 inch).... The radiator
bolt bosses are through drilled .... Very small leak potential
this is a drain/ catch on an 02-05
it's plugged on the end...
then the crank case vent penetration I assume is common
to all 12 frames
the 04-05 has a oringed penetration for the kleen system
but it's obvious that if it's removed from the air box
it would have to be plugged
|
Texas12R
Zone Head
Posts: 545
|
posted April 05, 2010 06:11 AM
I realize there are differences in the frames but this is what I have
to go on..... I'm sure the simple solution would be silicon ....
or perhaps a poly- urethane foam? I don't know about it being
Solvent compatable...
If you wanted to get at the hole in the steering head .... use a
24 " length of tube added to a common caulking gun
hose clamp the tube to the cartridge and have someone squeeze
while you TRY to direct the discharge.....
or pull the steering head assy
my .01 worth
|
Texas12R
Zone Head
Posts: 545
|
posted April 05, 2010 06:22 AM
 Edited By: Texas12R on 5 Apr 2010 14:41
Just a side note on the steering head assy...
It is fairly well sealed from looking at the dust seals...
But I couldn't claim or verify that it is a pneumatic seal
from what I've seen ... All things considered the holes on the
underside near the front ( Scotts pic) would be the largest potential
leaks that would need to be sealed
Im very skeptical about finding any substantial gains within
the ram air system .... But by all means ....explore
( As always I reserve the right to be wrong )
|
KZScott
Needs a life
high on speed
Posts: 7235
|
posted April 05, 2010 01:58 PM
good pics Mike
i plugged the holes for the ram air well nuts, aswell as the hole I made by removing the kleen air system with JB weld
____________
01 ZX-12R 8.84 @ 156.3 no bars, DOT tires. Pump Gas, NA.... turbo 8.47 @ 164.
00 ZX-12R 8.62 @ 165.2 no bars, slicks, Pump Gas, 55 shot.... turbo 8.32 @173
00 ZX-12R Fastest NA Kawasaki in the world 1: 222.046 1.5: 226.390 Loring AFB
00 ZX-12R street turbo 1: 227.9 1.5: 234.1 Loring AFB
00 ZX-12R LSR turbo 1: 263.1 1.5: 266.5 Loring AFB Worlds fastest ZX-12R
CMG Racing RCC Turbos
|
capt10ed
Expert Class
Posts: 327
|
posted April 06, 2010 03:08 AM
this is the boss for the ram air well nut...
They are open to the air box... A very small
potential for a leak
What I did with that one is to drill and tap for a slotted set screw. Which had to be screwed in deeply to allow the rubber nut to be put back in.
____________
2014 Loring AFB 14 runs over 200mph
with a best of 208.1 in 1.5 miles
and 204.5 in the mile.
|
Texas12R
Zone Head
Posts: 545
|
posted April 06, 2010 03:46 AM
Thanks Scott.... You often say " we need pics"
and I often miss the mark with words!
Capt.... very good solution
|
supra5677
Pro
Posts: 1279
|
posted April 06, 2010 09:03 AM
why is there a casting hole in the steering head?
|
Texas12R
Zone Head
Posts: 545
|
posted April 06, 2010 02:22 PM
Well imagine your in charge of producing
this shape ....
How would you hold the negative internal
media.... It looks like the hole( which would be a
round locating peg ) is how the casting media
was held and oriented for the pour......
It obviously has no purpose beyond manufacturing
there are other casting holes in the aft section of
the frame that don't seem to have any purpose
again I reserve the right to be wrong
|
KZScott
Needs a life
high on speed
Posts: 7235
|
posted April 06, 2010 03:50 PM
looks like a way to pour in some ballast for a pro street build....
____________
01 ZX-12R 8.84 @ 156.3 no bars, DOT tires. Pump Gas, NA.... turbo 8.47 @ 164.
00 ZX-12R 8.62 @ 165.2 no bars, slicks, Pump Gas, 55 shot.... turbo 8.32 @173
00 ZX-12R Fastest NA Kawasaki in the world 1: 222.046 1.5: 226.390 Loring AFB
00 ZX-12R street turbo 1: 227.9 1.5: 234.1 Loring AFB
00 ZX-12R LSR turbo 1: 263.1 1.5: 266.5 Loring AFB Worlds fastest ZX-12R
CMG Racing RCC Turbos
|
Texas12R
Zone Head
Posts: 545
|
posted April 06, 2010 06:34 PM
That's why you just gonna get quicker and faster!
Always thinking of new ways to approach the next goal!
 :
|
supra5677
Pro
Posts: 1279
|
posted April 25, 2010 01:15 PM
I don't think the box can resonate with a hole in it. i
|
Shane661
Needs a life
Posts: 11494
|
posted April 25, 2010 01:18 PM
Edited By: Shane661 on 25 Apr 2010 21:22
quote:
I don't think the box can resonate with a hole in it. i
Sure it can. Drill a 3/8" hole in a ported subwoofer and tell me if it suddenly sounds like a tweeter. 
Now consider the relatively paltry amount of air that can pass through there because of the steering head structure.
Have you started logging any data yet?
|
|
|
HOME
NEW TOPIC