easy mod questions
ok ive read about two mods that people have said they have done and have seen improvements.
1. egr blocking
the topic posted in the FAQS section not longer has photos so im wondering if all i need to do is take off the valve, cut a piece of metal to fit over where the vavle was and tighten it down. where do the vacuum hoses go that previously went to the egr valve.
2. bypassing throttle coolant hoses
is this really worth it? i live in georgia so it gets kind of cold but i don't want to mess with something thats gonna mess up my idle. has anyone noticed this to be a good mod?
1. egr blocking
the topic posted in the FAQS section not longer has photos so im wondering if all i need to do is take off the valve, cut a piece of metal to fit over where the vavle was and tighten it down. where do the vacuum hoses go that previously went to the egr valve.
2. bypassing throttle coolant hoses
is this really worth it? i live in georgia so it gets kind of cold but i don't want to mess with something thats gonna mess up my idle. has anyone noticed this to be a good mod?
EGR won't effect engine performance, it only reduces emissions. The exhaust gas is inert, although it takes up cylinder volume with inert gases and when it is introduced into the intake stream will reduce volumetric efficiency, it is only purged during cruising (not idle and most importantly, not WOT)
The throttle body has coolant circulated through it to prevent the throttle plate from sticking or freezing, it is also there for the FATV (fast idle thermo valve) the valve allows more air until the coolant reaches a high enough temperature to close the valve and cut off airflow. I think the idea is to remove the hot coolant from the throttle body so that the intake air charge is colder and more dense. This warm throttle body however aids in cold start and normal operation fuel vaporization.
Neither removing and blocking the EGR or removing the coolant hoses from the throttle body will give you any kind of performance gain that you would notice or would be worth the effort in my own opinion.
The throttle body has coolant circulated through it to prevent the throttle plate from sticking or freezing, it is also there for the FATV (fast idle thermo valve) the valve allows more air until the coolant reaches a high enough temperature to close the valve and cut off airflow. I think the idea is to remove the hot coolant from the throttle body so that the intake air charge is colder and more dense. This warm throttle body however aids in cold start and normal operation fuel vaporization.
Neither removing and blocking the EGR or removing the coolant hoses from the throttle body will give you any kind of performance gain that you would notice or would be worth the effort in my own opinion.
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del sol b18c
Honda Civic / Del Sol (1992 - 2000)
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Sep 10, 2007 11:43 PM




