Ko3, Ko3s, And Ko4-015 Sizing.

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B5 Models Please discuss all 1996 - 2001 B5 A4 topics here... Community Links Pictures & Albums Members Search Forums Show Threads Show Posts Tag Search Advanced Search Go to Page... ko3, ko3s, and ko4-015 sizing. Reply Subscribe Thread Tools Search this Thread Old Nov 14, 2008 | 12:02 AM Share Share Options #1 cincyTT's Avatar cincyTT Thread Starter | I'm make believe Joined: Dec 2006 Posts: 17,587 From: In my head Default ko3, ko3s, and ko4-015 sizing. Since people here LOVE to talk about upgrading to a ko3s and ko4, i thought you guys would like to actually see the size differences. That, and im sick of stating the differences almost monthly Ko3 - 97-2000 COMPRESSOR WHEEL Inducer: 33.6mm Exducer: 46mm Tip height: 3.7mm TURBINE WHEEL Inducer: 45mm Exducer: 38mm Tip height: 6.8mm Blades: 11 Ko3S - 01+ COMPRESSOR WHEEL Inducer: 38mm Exducer: 51mm Tip height: 4.4mm TURBINE WHEEL Inducer: 45mm Exducer: 38mm Tip height: 6.8mm Blades: 11 Ko4-015 COMPRESSOR WHEEL Inducer: 35mm Exducer: 50mm Tip height: 3.7mm TURBINE WHEEL Inducer: 50mm Exducer: 42mm Tip height: 6.4mm Blades: 11 As you can see and have been told, the ko3s has a larger compressor wheel than both the ko3 and ko4 along with a more effecient design. However, the ko4 has a slightly larger turbine wheel which makes it able to flow the higher power made by chipping better. The best thing to do if you really want to go this route is to buy a ko4 AND used cheap/dead ko3s and swap the compressor wheel and housing to the ko4. This should net you a few more whp and tq Reply cincyTT View Public Profile Send a private message to cincyTT Find all posts by cincyTT Old Nov 14, 2008 | 01:24 AM Share Share Options #2 EpicWin's Avatar EpicWin 1st Gear Joined: Sep 2008 Posts: 121 From: Oregon Default You're the mod, make it a sticky Here's a cool sheet of what engines a K03s came on (by engine code): http://www.qpeng.com/faqs/engine_faq...they_mean.html Reply EpicWin View Public Profile Send a private message to EpicWin Find all posts by EpicWin Old Nov 14, 2008 | 01:49 AM Share Share Options #3 Tweaked's Avatar Tweaked 3rd Gear Joined: May 2008 Posts: 1,900 From: CT Default Good info. Thanks again cincyTT. Reply Tweaked View Public Profile Send a private message to Tweaked Find all posts by Tweaked Old Nov 14, 2008 | 01:42 PM Share Share Options #4 cincyTT's Avatar cincyTT Thread Starter | I'm make believe Joined: Dec 2006 Posts: 17,587 From: In my head Default This info has now been added to the 1.8t turbo upgrade thread in the sticky above. You can also have people search for this thread if need be. Reply cincyTT View Public Profile Send a private message to cincyTT Find all posts by cincyTT Old Nov 14, 2008 | 03:05 PM Share Share Options #5 Jc61990's Avatar Jc61990 4th Gear Joined: Jul 2008 Posts: 3,326 From: Long Island, New York Default would the inducer be the same as the inlet size? Reply Jc61990 View Public Profile Send a private message to Jc61990 Visit Jc61990's homepage! Find all posts by Jc61990 Old Nov 14, 2008 | 03:13 PM Share Share Options #6 cincyTT's Avatar cincyTT Thread Starter | I'm make believe Joined: Dec 2006 Posts: 17,587 From: In my head Default No, the inlet can be tapered down to the inducer size. For instance, a gt30r can come with a 4" inlet but the inducer is a little more than 2" Reply cincyTT View Public Profile Send a private message to cincyTT Find all posts by cincyTT Old Nov 14, 2008 | 04:26 PM Share Share Options #7 TeeterTawter's Avatar TeeterTawter 2nd Gear Joined: Mar 2006 Posts: 1,358 From: Sauga Default "The best thing to do if you really want to go this route is to buy a ko4 AND used cheap/dead ko3s and swap the compressor wheel and housing to the ko4. This should net you a few more whp and tq" Isnt this what Gpopshop does with their hybrid Ko4s? Reply TeeterTawter View Public Profile Send a private message to TeeterTawter Find all posts by TeeterTawter Old Nov 14, 2008 | 04:54 PM Share Share Options #8 cincyTT's Avatar cincyTT Thread Starter | I'm make believe Joined: Dec 2006 Posts: 17,587 From: In my head Default Thats what i was thinking. Havent gone searching if that was the case or not. Should be cheaper and make slightly better numbers than a new ko4-015 Reply cincyTT View Public Profile Send a private message to cincyTT Find all posts by cincyTT Old Nov 14, 2008 | 04:58 PM Share Share Options #9 TeeterTawter's Avatar TeeterTawter 2nd Gear Joined: Mar 2006 Posts: 1,358 From: Sauga Default http://www.gpopshop.com/kkkturbos.html thats there info, i don't think they do Reply TeeterTawter View Public Profile Send a private message to TeeterTawter Find all posts by TeeterTawter Old Nov 14, 2008 | 04:58 PM Share Share Options #10 A4speed's Avatar A4speed Senior Member Joined: Jan 2006 Posts: 2,646 From: Orem, UT Default thanks for the good info! Reply A4speed View Public Profile Send a private message to A4speed Find all posts by A4speed Thread Tools Show Printable Version Show Printable Version Search this Thread Advanced Search Thread Tools Show Printable Version Email this Page Advanced Search Reply Closed Thread Share
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