Lets talk ITB
04-12-2010, 02:19 AM
#1
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Location: Dayton
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Lets talk ITB
YES, I am a noob.
hear me out. i know ITB (individual throttle body) is kinda universal. Has anyone seen or tried to do this?
I am very interested in doing this but am looking for some more info and to talk to someone who has experience.......
hear me out. i know ITB (individual throttle body) is kinda universal. Has anyone seen or tried to do this?
I am very interested in doing this but am looking for some more info and to talk to someone who has experience.......
04-12-2010, 03:59 AM
#7
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what, why so negative? someday someone is gonna get it... it sure aint gonna be me, hell, im lucky I can tie my shoes in the am...
honestly, I get the gains from it, but its just the look of it that makes me walk away... something about that just aint quite right on a fwd car
honestly, I get the gains from it, but its just the look of it that makes me walk away... something about that just aint quite right on a fwd car
04-17-2010, 06:59 AM
#9
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Location: the EVT 425
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you may have to find all of the specs and diameters for the ports on your head.
which could be as simple as taking a sheet of butcher paper and rubbing a crayon against the
inlet side of the head to make a template to work off of for the intake side of the head to mate
properly.
either find a set of similar sized 4 banger ITB and compare (maybe you'll get lucky).
if you do find a comparible sized itb you "will"have to port match because they wont be dead on
and if they do i will uload a dump in my shorts... or you may have to buy a blank of aluminum.
and have someone mill it for you based on the information to give them which is where the
butcher paper with the general pattern and sizes of the ports comes in.
after that you can mill the bolts to attach it. and bore a line for all of the butterfly's to attach to
(solid rod that goes through all of the throttle bodies). the return spring and the throttle cable
as well as the throttle position sensor.
getting the proper diameters and the right size so you can get a good pull for the air is a big
deal, if your ports are too open the velocity stacks can't pull air efficiently into the chambers.
additionally you could add a channel for the coolant to go through.....but if your doing this it
isn't a daily driver anymore so whats the point.
and ultimately this wont be cheap, you may save money (just in trouble alone if your not up to
this) by contacting a race shop to fabricate this setup for you.
coupled with a port and polish, reground cams, and modified intake and exhaust valves you
should see some decent gains...but nothing amazing without additional N/A work.
my two cents.
which could be as simple as taking a sheet of butcher paper and rubbing a crayon against the
inlet side of the head to make a template to work off of for the intake side of the head to mate
properly.
either find a set of similar sized 4 banger ITB and compare (maybe you'll get lucky).
if you do find a comparible sized itb you "will"have to port match because they wont be dead on
and if they do i will uload a dump in my shorts... or you may have to buy a blank of aluminum.
and have someone mill it for you based on the information to give them which is where the
butcher paper with the general pattern and sizes of the ports comes in.
after that you can mill the bolts to attach it. and bore a line for all of the butterfly's to attach to
(solid rod that goes through all of the throttle bodies). the return spring and the throttle cable
as well as the throttle position sensor.
getting the proper diameters and the right size so you can get a good pull for the air is a big
deal, if your ports are too open the velocity stacks can't pull air efficiently into the chambers.
additionally you could add a channel for the coolant to go through.....but if your doing this it
isn't a daily driver anymore so whats the point.
and ultimately this wont be cheap, you may save money (just in trouble alone if your not up to
this) by contacting a race shop to fabricate this setup for you.
coupled with a port and polish, reground cams, and modified intake and exhaust valves you
should see some decent gains...but nothing amazing without additional N/A work.
my two cents.
Last edited by alienvictim; 04-17-2010 at 07:06 AM.
04-17-2010, 07:15 AM
#11
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i agree on throttle response but to say it has nothing to do with hp gains while coupled with other mods is saddening......
Last edited by alienvictim; 04-17-2010 at 07:20 AM.
04-17-2010, 07:20 AM
#12
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Posts: 299
factory power restrictions, conservative tunes, constrictive stock intake, poor flow design, conservative fuel map, take your pick. you're not going to pick up more than a 5% increase in power from itb's and that's not what the purpose to installing itbs is for. like i said, throttle and engine response.
04-17-2010, 07:27 AM
#13
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factory power restrictions, conservative tunes, constrictive stock intake, poor flow design, conservative fuel map, take your pick. you're not going to pick up more than a 5% increase in power from itb's and that's not what the purpose to installing itbs is for. like i said, throttle and engine response.
wow. yeah sure....okay
heres the deal spanky. i will reiterate for you.
the itb alone will not give you hp gains to speak of......but i didn't say it would. coupled with other factors IE headwork it can.
all of what you said above is part of the mess you remove in doing so..so yeah.....if you dont think adding itb's and velocity stacks helps top end power in combo with other mods be my guest.
Last edited by alienvictim; 04-17-2010 at 07:46 AM.
04-17-2010, 08:00 AM
#17
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^there you go, i like that
only issue i can think of besides mounting the proper tps (not too bad) would be matching the ports or else you may end up with turbulence at the inlet to the head killing the intended effect. but if its very close in head size it may work.
you got me thinking and i ran a crossed this thread, the itb's he made are ugly but they look like they would work fine. or you could just do the same thing to a set of aftermarket itbs by cutting the flange off and adapting it.
either way its going to be a bit of work.
http://www.honda-tech.com/showthread.php?t=1191757
only issue i can think of besides mounting the proper tps (not too bad) would be matching the ports or else you may end up with turbulence at the inlet to the head killing the intended effect. but if its very close in head size it may work.
you got me thinking and i ran a crossed this thread, the itb's he made are ugly but they look like they would work fine. or you could just do the same thing to a set of aftermarket itbs by cutting the flange off and adapting it.
either way its going to be a bit of work.
http://www.honda-tech.com/showthread.php?t=1191757
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