individual throttle bodies?
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From: montgomery alabama
Originally Posted by qtiger
Assuming you use a vacuum accumulator and a MAP, yes. But TPS based fueling is really better for most ITB setups.
BOOST GOD
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From: NL CT
Originally Posted by :snoopy:
every engine management system is capable of tuning itb's. hell you could do it with a vafc. it's in the competency of the tuner to make it all work together.
That is, with ITBs you tune more for TPS position, instead of engine load, because you don't have a real good vacuum reference.
-PHiZ
been there done that
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From: 916
Originally Posted by PHiZ
Well to a point. There is honestly a point where you run into the limiting factors of the EMS. Because you do not have a very good vaccum source with ITBs, it is difficult to get MAP readings. What you need is an EMS that will allow you to discount MAP reliance, and replace it with TPS reliance.
That is, with ITBs you tune more for TPS position, instead of engine load, because you don't have a real good vacuum reference.
-PHiZ
That is, with ITBs you tune more for TPS position, instead of engine load, because you don't have a real good vacuum reference.
-PHiZ
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Originally Posted by Paulll
im talking about boost 
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From: Allentown PA, - Phila, PA
Originally Posted by :snoopy:
itb's are meant for fully built NA engines that will benefit from their increased airflow. you should not consider them until you have a setup that would benefit from them. really, they should be the last thing you do to an engine.
www.haywardperformance.com
www.twminduction.com
www.todaracing.com
www.haywardperformance.com
www.twminduction.com
www.todaracing.com
DITTO!!!
I will simply re-iterate what was well-put by snoopy:
ITB's are ONLY for extremely high-rpm engines (which usually means the engines are built to take the extra stress), So putting them on a SOHC civic will do nothing but DECREASE the amount of power and torque.
Think about it, it's not rocket science, u don't put them on a street engine, running in the 1000-8000 rpm range... They are for rpms well above 8000, like CART or INDY cars and Sport bikes.
So, "Paull" then, since u disagree, how exactly does it help? They certainly don't provide low-end torque, and what they will add to the top-end, doesn't make up for what they've lost in the low-midrange... They are used on racing engines, that are continuously run at high-rpms, period.
Oh yeah, that graph that was posted above, LOL...
That's on 110 octane race gas...
been there done that
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From: 916
Originally Posted by qtiger
I haven't seen impressive results with boosted ITB setups, frankly. Yes there are gains but for the money there are better places to put your money once you're turbo.
Originally Posted by pomansouth
ohh is that cheap for 15 hp, ouch, kinda expensive.