intake cooling

[evilvr4]

hey was woundering which coolent lines can i remove from the intake?
do you just remove the ones off the throttle or them and the one off the plenum and bypass them both?

[bmgjet]

You can remove the TB one and the cold idle one. Also the cold idle one you will need to pull it apart and tight it so your cars not always reving high.

[LS/VTEC]

pictures or better explaination in detail

[4age20v]

yea could someone post up some photos

[bmgjet]

ill post some up tomorrow afternoon after work if no one else has by then.

[haimsadia]

Originally Posted by 4age20v

yea could someone post up some photos

i told and showed you how to do it!

[4age20v]

Originally Posted by haimsadia

i told and showed you how to do it!

i forgot which one... help me laaaa

[haimsadia]

Originally Posted by 4age20v

i forgot which one... help me laaaa

come to my place on thursday... my intake manifold is coming off... you can see wat to do then.


**sorry for the thread hijack- saying that, i would search H-T for the answers...**

[Coupe-R]

What gen motor do you have
if its OBD2 they don't have a FITV. but they still have coolant lines going through the TB

remove and join those hoses.

also the IACV on the back of the intake mani has coolant lines to stop the IACV from freezing and sticking, you can remove those also.

there is also a BIG coolant line running through the intake, that can be modified to be blocked off and go around the intake mani.

I have only done the TB bypass and used a gizzmo gasket

[Macros]

car wouldnt idle when I did a bypass so I put it back in

[SiR Civic]

What is the advantage of this?

...end noob question

[chromies ea]

Originally Posted by bmgjet

You can remove the TB one and the cold idle one. Also the cold idle one you will need to pull it apart and tight it so your cars not always reving high.

Yeah man im having that problem after the IACV bypass, what do you mean by tight it? Is that jamming the soloniod open, or closed?

[WingIt]

Originally Posted by SiR Civic

What is the advantage of this?

...end noob question

Dont have hot water running through your intake manifold heating up the air

[vti]

but realistically wouldnt the air be rushing in too fast for the heat to significantly affect it anyway?

[bmgjet]

Tighting it makes it stay closed so the car idles as if it was already warmed up.

[Horny_Devil]

Originally Posted by vti

but realistically wouldnt the air be rushing in too fast for the heat to significantly affect it anyway?

how does a radiator work then?

exactally the same principal except the hot air is going into ur engine

[vti]

what do you mean by how does a radiator works? a radiator holds water for much longer then intake plenum there for allowing longer time for the water to cool down.

how do you relate a radiator to a throttle body/plenum?

[haimsadia]

Originally Posted by vti

what do you mean by how does a radiator works? a radiator holds water for much longer then intake plenum there for allowing longer time for the water to cool down.

how do you relate a radiator to a throttle body/plenum?

Man... use your mind...

the cold air passing through the radiator cools the water down... it doesnt hold the water for Much longer... all Jase meant was that as the air passes through the radiator the air gets hotter as it passes through the fins which is just about the same time for the air to stay in the manifold.


any way if im wrong then correct me... but yeah im pretty sure that im
correct about the air being warmed up...


***ninja edit***

he just said that... with much more detail.. haha

[Horny_Devil]

Originally Posted by vti

what do you mean by how does a radiator works? a radiator holds water for much longer then intake plenum there for allowing longer time for the water to cool down.

how do you relate a radiator to a throttle body/plenum?

the radiator is hot and hence the air flowing through it cools it down. hence the air gets warmer

the intake manifold is also hot (heated by the coolent running through it) and the air folowing through it cools it down hence the air gets warmer.

not really rocket science

the air going through the radiator is going to be in the radiator about the same amount as the air in the intake plenium. the movement of the water has nothing to do with it.

[vti]

ah i see what you mean now sorry too late at night for me

so after all that explaining, is there an over all SIGNIFICANT gain in doing it?

[Horny_Devil]

Around town, testing has shown an average drop of around 10 degrees C with an intake gasket (hondata or simular). on the track i would have to say it would be more.

The graph below shows the results of installing the Heatshield gasket and bypassing the throttle body heating and idle control valve heating.

[ENT1CE]

Intake Identifaction / B series head identifaction made easy / thermal gasket info

link here
Gizzmo electronics Pty Ltd, specialists in performance ecu upgrades/chips, dyno tuning, performance products including launch controllers, shiftlamps, vtec controllers, boost controllers, IBC, MSIBC, CAMFC, phenolic gaskets, apexi, apex, aftermarket

[Coupe-R]

on the track i would have to say it would be more.

I would say the oppisite.
Temp changes would be more obvisous with a closed to minimal opening of the throttle plate. Not much air rushing past cooling the intake.

On the track basically full throttle so the intake air temp would be close to the ambeint air temp outside.

This is evendent from the graph, notice when the throttle is open the intake temps between the two don't differ much. When the throttle is closed alot "150m drop" the temp sky rockets.

You can see this when tuning cars and datalogging, intake temps climb with closed or narrow throttle. Full throttle the intake temp rapidly drops.

Makes sense really, its much better with an intake gasket the air doesn't have to try and cool the intake down as much. Tuning is easier, and ignition retard vs intake temp doesn't kick in as often.

P.S that graph isn't very good where they have put the climb and drop, basically when ever the car climbs the intake will decrease. Thats whats happening.

Also the car was started when it had already been running, thats why the intake was so hot, (sitting so intake temp is at the hottest from heat soak)

[Disruptiv]

so does it give you any more power of is it just one of those things you just do?

[MarkE]

cooler air = more power.