Can you over throttlebody a efi motor
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Originally Posted by ringram
Generally no, but you do need to make sure your manifold has the correct runner configuration to suit the engine application.
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please don't disconnect the IAC....
The general answer to this question is NO, you can't over throttle body a motor in terms of HP output. I would imagine that you could get to a level where you could, like you can over plenum a motor, but EFI usually kills the issues with transitional response.... so just thinking outloud I don't see that as a problem either.
Bret
The general answer to this question is NO, you can't over throttle body a motor in terms of HP output. I would imagine that you could get to a level where you could, like you can over plenum a motor, but EFI usually kills the issues with transitional response.... so just thinking outloud I don't see that as a problem either.
Bret
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Joined: Aug 2005
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From: Sunny London, UK
Well you can, but you will have to let more air in than you need for most times. The IAC helps with idle transitions like coming to a stop and low speed parking etc, where accessories load the engine which then has to add air to prevent a stall etc. Also Mr AC will load it up at idle. If you dont use IAC you are going to have to raise idle burn more fuel and generally be antisocial
With a massive TB you're going to HATE how it drives at very low throttle angles (if you're stuck at a traffic light next to a police officer)...at least until you get used to it...make sure it's a VERY progressive linkage (cam on the throttle shaft) if it's a big TB.
I don't think you can.....take the harrop intake for example. It has 8 individual throttle bodies...we have been installing one at the shop. it is the 52mm version but that is still 416mm of airflow. Theoretically the more air the better......and when you get x amount of air your heads then become the restriction for flow. hope this helps
Originally Posted by ls1408cp
any other thoughts on this
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Joined: Nov 2002
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From: Michigan, auburn HIlls
On an ITB intake manifold not all of the throttles are having air sucked through them all the time. On a plenum style manifold the throttle body almost always has air flowing through it.
This is because on a plenum style all the cylinders are pulling through the same throttle.
Hope that makes sense
James
Kinsler.com
This is because on a plenum style all the cylinders are pulling through the same throttle.
Hope that makes sense
James
Kinsler.com