help with ITB's!!!!!!!!!
#1
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Join Date: May 2006
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help with ITB's!!!!!!!!!
I'm buildin an LS/VTEC and i wanna go individual throttle bodies, but my friend said that it does away with power brakes and that its really only for strictly race cars or cars that see a lot more track time then street, howver, my car is gonna be daily drivin for a lil while until i buy another car, but i dont care for creature comforts since i dont even have a sterio system in my car i just want a all out street drivin race car but i do want good brakin so if any one can help with this let me know.
#2
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Re: help with ITB's!!!!!!!!! (LFMotorsportsowner)
It does not take away from the power brakes. You have a vaccum canaster. look around at ITB setups. You''ll see some in plain site. Thy have like 6-7 holes going into the vaccum canaster
#4
Mad Scientist
Re: help with ITB's!!!!!!!!! (dustin_crxsi)
itb's do pull a lot less vaccuum; not up to the point of your brake booster not working. brakes work fine.
they are also by every mean completely streetable, been running them everyday for about a year now.
they are also by every mean completely streetable, been running them everyday for about a year now.
#5
Honda-Tech Member
Re: help with ITB's!!!!!!!!! (mmuller)
I daily drove mine, and it made tons of vacuum. I made a cheapie vacuum manifold for it and an adapter plate for my IACV, no problems. Throttle response was amazing.
The vacuum manifold (1' of 1" pipe, capped and tapped for 1/8" NPT hose barbs):
IACV Adapter:
The vacuum manifold (1' of 1" pipe, capped and tapped for 1/8" NPT hose barbs):
IACV Adapter:
#6
Honda-Tech Member
Re: help with ITB's!!!!!!!!! (rmcdaniels)
More pics of that whole setup:
http://s115271005.onlinehome.us/TWM/windex.htm
http://s115271005.onlinehome.u...2.htm
http://s115271005.onlinehome.u...Pics/
http://s115271005.onlinehome.us/TWM/windex.htm
http://s115271005.onlinehome.u...2.htm
http://s115271005.onlinehome.u...Pics/
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#8
http://s95.photobucket.com/albums/l160/Cr4ck0z/
that's mine, with a 2 1/2 piping and the vacuum is less than a normal plenum and it's normal with 4 invididual throttle body ...
that's mine, with a 2 1/2 piping and the vacuum is less than a normal plenum and it's normal with 4 invididual throttle body ...
#11
Mad Scientist
Re: (rmcdaniels)
Yeah im getting about 330 mbar at idle also; as for the map sensor, you would want to use a very small vaccuum canister, just small enough to dampen pulses to make readings a little smoother.
try to make vaccuum lines as short as possible
try to make vaccuum lines as short as possible
#14
Mad Scientist
Re: (Cr4ck0z)
reading is the same. its about volume; there is no need to overdue it..
put your finger over a 1/8 line and gas it; now put your hand over a throttle body and gas it, same vaccuum not same effect...( dis. dont do that or your hand might not like it..)
have tried with a bunch of different vaccuum setups, and as for now i stuck to this:
put your finger over a 1/8 line and gas it; now put your hand over a throttle body and gas it, same vaccuum not same effect...( dis. dont do that or your hand might not like it..)
have tried with a bunch of different vaccuum setups, and as for now i stuck to this:
#16
yeah i got that too on mine (IAC, brake booster, canister) go from a 2 1/4" pipe to a small 1/2" vacuum line .. maybe it's my butterfly that loose a little bit, my idle run very nice but maybe it loose there, i did my own butterfly so it's maybe not perfect at 100%
#20
OG triple OG
Re: (PACMAN8)
why wouldnt you? i run 91 oct with 12:1 compression. motor has been finished for about a month and ive driven it every day . going to tune thursday.
the 2000 series itb's have a booster vac line , but i tapped each runner for map signal. i pull great vacuum and the brakes work incredible.
the 2000 series itb's have a booster vac line , but i tapped each runner for map signal. i pull great vacuum and the brakes work incredible.
#22
Re: (rmcdaniels)
will i be able 2 run my original p72 ECU/PCM in order 2 break in the motor before i tune it on dyno? i don't care if i have shity idle as long as its drivable.
#23
Mad Scientist
Re: (PACMAN8)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by PACMAN8 »</TD></TR><TR><TD CLASS="quote">will i be able 2 run my original p72 ECU/PCM in order 2 break in the motor before i tune it on dyno? i don't care if i have shity idle as long as its drivable.</TD></TR></TABLE>
no way... shitty idle is an understatement
no way... shitty idle is an understatement
#25
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Re: (mmuller)
yeh, stock ecu is not good to break in a motor if u have major upgrades, your better off breaking it in on the dyno or get a good wideband street tune to break it in