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Author Topic: how bad are obx itb's?  (Read 8828 times)

92CXyD

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Re: how bad are obx itb's?
« Reply #30 on: August 28, 2010, 10:33:42 AM »
Quote from: 2slow on August 28, 2010, 08:25:18 AM
On ohmt jeff had a write up on how to do these on the old projects section.

Yeah we know.  ;D
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highroller54

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Re: how bad are obx itb's?
« Reply #31 on: August 28, 2010, 12:55:51 PM »
Quote from: turbob16hatch on August 28, 2010, 12:03:06 AM
Quote from: highroller54 on August 27, 2010, 11:50:54 PM
Quote from: chris M on August 27, 2010, 05:55:57 PM
they are small for itb's anyways.


I didn't know they were THAT small, fuck that.

there only small if you think you can ONLY use 50mm+  itb's.

45mm is not going to feed a high rpm 2.0l hoping for 240 whp worth a shit, if it would I would run bike shit over obx for higher quaility anyways.
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Re: how bad are obx itb's?
« Reply #32 on: August 28, 2010, 02:30:38 PM »
Start doing your homework. Maybe some of the new cycle stuff got bigger from when i was doing alot of it. My assumption is they most likely did and can be bored 2-3mm larger



The only thing that will cost money is buying the cycle itb's+machine work. I still think it can be done for under 600 bucks even if you go the route of having the throttle bodies bored.
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dvst8r

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Re: how bad are obx itb's?
« Reply #33 on: August 28, 2010, 03:33:44 PM »
Iirc, it is quite common to bore out the 44mm zx-14 throttle bodies to 46mm.
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dvst8r

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Re: how bad are obx itb's?
« Reply #34 on: August 28, 2010, 03:41:40 PM »
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dvst8r

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Re: how bad are obx itb's?
« Reply #35 on: August 28, 2010, 03:46:25 PM »
M1000's run a pair of 50mm throttle bodies for a ~160hp so with 4 of them they should easily support the 240hp you are looking for.
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highroller54

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Re: how bad are obx itb's?
« Reply #36 on: August 28, 2010, 08:57:40 PM »
Brett thats some good thinking right there  ;)
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dvst8r

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Re: how bad are obx itb's?
« Reply #37 on: August 29, 2010, 12:26:26 AM »
I really want this to be a turbo setup, but since you're so set on at least trying N/A, I might as well help out a bit...

For more options 2009-10 CRF450R's used 50mm throttle bodies too, the 2011's dropped down to a 46mm something about throttle response or marketing hype or...
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raiden571

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Re: how bad are obx itb's?
« Reply #38 on: August 30, 2010, 10:21:06 AM »
i have a set of custom itbs that will fit along with everything else like a fuel pressure reg, etc for that car. let me know if your interested.
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Donald125

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Re: how bad are obx itb's?
« Reply #39 on: September 01, 2010, 12:25:23 AM »
me love motorcycle power bands
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ratcityrex

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Re: how bad are obx itb's?
« Reply #40 on: September 01, 2010, 12:46:44 AM »
Quote from: Donald125 on September 01, 2010, 12:25:23 AM
me love motorcycle power bands

Holly shit man, havent see you in a while
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New setup is old bottom end with a hype r head with gsr cams. built lsv with hx35 @ 26psi on pump gas
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Re: how bad are obx itb's?
« Reply #41 on: September 01, 2010, 08:33:09 AM »
Donald, sell chinese shit!  Nao!
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