Removing hot water to throttle body

[claymore]

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[Jase EK]

wat do you do with the TB .. put plugs on ends or ?

[Jus-10]

When I drive my car, the air goes in to the engine so fast that it doesn't have time to heat up when it passes through the throttle body

[Jase EK]

find any gains ?

[MRFIT]

i think zimp13 has done the same on his jazz.... i don't think any gain can be felt..... then again, in theory, its 'better' for the car.....

btw.... nice nail polish.... ;)
hehe....

[Zimp13]

rpm becomes unstable once i did that... i only left it that way for 1 day.. mayb should leave longer and c how...

[Zimp13]

Have been running like this for 2 days and have had no problems with RPM fluctuation or any other problems. So far so good.

u feel any difference before and after doing it?

[Zimp13]

some info that i read regarding abt this simple mod from other forum.....

Apparently the Coolant to the Throttle body is used to heat up the throttle body. The temp sensor once sense that the car is sufficiently warmed up, the RPM of the car will drop. That is the reason why in the morning, when you start your car, the RPM is higher, and the car seems very responsive until 5 minutes later.

The coolant temperature can hit as high as 80 degrees celsius. Thus, this will actually heat up the throttle body.. Thus, in the Cold Air intake concept, this point would seem to increase the temperature of air. By doing a bypass, we can keep the throttle cooler... thus the air cooler and leading to better combustion. (Cool air more Dense).

However, the down side of it is that when we start our car in the morning, the RPM of the car remains high for a much longer period of time.. Some people may not like it as it seems like it is burning petrol unncessary when we start our cars.

The end effect of the coolant bypass on our throttle with relation to power increase has not be fully tested



This bypass might cause irregular idling (when engine is cold) due to the difference in temp upon sensing. In our car, so far no such adverse effect has been detected. The point is that if we try so much to mod a CAI system (ie. to ensure the air going into the combustion chamber is as cool/cold as possible by re-directing air flow, heat-shielding here and there) then as soon as the air passes into the throttle body, it get heated up by the 80-90D/celsius radiator "coolant" that is channeling round the TB - No more cool air into combustion chamber.......



The reason why the manufacturer lets hot coolant run through the tb is because in winter time, the tb is prone to freezing causing mechanical failure, very rough idling, etc. Hot coolant passing through the tb will ensure that the tb will never freeze but the bad thing is it will also warm up the air passing through the tb.As you well know, hot air robs horsepower. And since we already live in the tropics, there's absolutely no need for the coolant to go through the tb.