Custom inlets for k04's using k03 inlets . budget ballers......
12-17-2008, 06:29 PM
#1
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Custom inlets for k04's using k03 inlets . budget ballers......
what i did , i cut then ends off the inlets, "the bottle neck" ported them clean, bought some 2" silicon couplers, and a thin coupler to fit between the oem inlet and 2" coupler, wrapped em in exhaust header wrap to protect em from the manifold heat,
you need to trim the coupler so its just long enough to fit all the way down on the ko4 and the bolt will still line up on the inlet to cylinder head.
used a heavy duty hose clamp on the inlet side, and safety wire on the turbo side to hold the header/heat wrap. the bolt on the inlet keeps the inlets from moving anywhere
anyways if anyone has any Qs feel free to email
the 2" couplers on the ko4 were harder to push on than the oem inlets, fit very snug,
the difference between the size is not all that much, most of the ko4 size is the outside diameter, the inlet is pretty thick,
anyways i couldn't afford expensive inlets right now, and i can always yank these off with the motor in anytime.
i would think if you measure the inlet from a k04 vs k03 its only 1-2mm's or so.
sorry for the crappy pics, all i carry is my cell phone
oh and you cut the bottle neck on the oem inlet right where it cuts the vac line off clean, i have had 2 different people email me and say you do not need the vac lines that run from the oem inlets to to the top lines, they claim you will get no CEL, i am just going to cap them off at the rail on top the manifold, if i run into issues i will tap the Y pipe for vac. i will report back if i run into any codes for this BTW
<img src="http://i140.photobucket.com/albums/r40/brizax/17-12-08_1405.jpg">
<img src="http://i140.photobucket.com/albums/r40/brizax/17-12-08_1409.jpg">
<img src="http://i140.photobucket.com/albums/r40/brizax/17-12-08_1519.jpg">
you need to trim the coupler so its just long enough to fit all the way down on the ko4 and the bolt will still line up on the inlet to cylinder head.
used a heavy duty hose clamp on the inlet side, and safety wire on the turbo side to hold the header/heat wrap. the bolt on the inlet keeps the inlets from moving anywhere
anyways if anyone has any Qs feel free to email
the 2" couplers on the ko4 were harder to push on than the oem inlets, fit very snug,
the difference between the size is not all that much, most of the ko4 size is the outside diameter, the inlet is pretty thick,
anyways i couldn't afford expensive inlets right now, and i can always yank these off with the motor in anytime.
i would think if you measure the inlet from a k04 vs k03 its only 1-2mm's or so.
sorry for the crappy pics, all i carry is my cell phone
oh and you cut the bottle neck on the oem inlet right where it cuts the vac line off clean, i have had 2 different people email me and say you do not need the vac lines that run from the oem inlets to to the top lines, they claim you will get no CEL, i am just going to cap them off at the rail on top the manifold, if i run into issues i will tap the Y pipe for vac. i will report back if i run into any codes for this BTW
<img src="http://i140.photobucket.com/albums/r40/brizax/17-12-08_1405.jpg">
<img src="http://i140.photobucket.com/albums/r40/brizax/17-12-08_1409.jpg">
<img src="http://i140.photobucket.com/albums/r40/brizax/17-12-08_1519.jpg">
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12-17-2008, 07:26 PM
#10
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That was my idea. You just beat me to it ;) I'm sure it will work perfect. Why the two couplers?
Is there a slight size mismatch between the outside of the inlet and the od of the turbo inlet? Looks like you were a true DSM'er 