Idle Air Control & Throttle Body Coolant Bypass
07-19-2009, 09:38 AM
#1
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Idle Air Control & Throttle Body Coolant Bypass
I've spotted a few threads in relation to the Hondata IMG for the S and have also seen that people have bypassed the throttle body coolant to reduce inlet temperatures.
So, I did a search and have done quite a bit of reading now but the can't really figure out which pipes to bypass and which ones i shouldnt...I know that there isn't a lot of point doing this unless you get the Hondata IMG but am trying to read ahead of the job's I'm setting myself for the summer hols.
The Americans also mention bypassing the Idle air control coolant too.
My question is, has anyone got a how to for the throttle body coolant bypass and is it advisable not to do the idle air control as well because of winter temperatures over here?
cheers,
So, I did a search and have done quite a bit of reading now but the can't really figure out which pipes to bypass and which ones i shouldnt...I know that there isn't a lot of point doing this unless you get the Hondata IMG but am trying to read ahead of the job's I'm setting myself for the summer hols.
The Americans also mention bypassing the Idle air control coolant too.
My question is, has anyone got a how to for the throttle body coolant bypass and is it advisable not to do the idle air control as well because of winter temperatures over here?
cheers,
07-19-2009, 09:42 AM
#2
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Don't bother, waste of time and will potentially cause problems with icing. Zero performance improvement and a big downside equals pointless.
However should you want to do it you'll see two water hoses going into the throttle body. Just need to remove them and blank off the ends.
However should you want to do it you'll see two water hoses going into the throttle body. Just need to remove them and blank off the ends.
07-19-2009, 10:33 AM
#5
Originally Posted by fluffyninja,Jul 19 2009, 06:42 PM
Don't bother, waste of time and will potentially cause problems with icing. Zero performance improvement and a big downside equals pointless.
IMHO
plus it is $hite loads of work to get the inlet manifold off for the Hondata
07-19-2009, 11:46 AM
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This mod DOES make a difference but only if used with the Hondata gasket. Maybe it doesn't worth it if you are SC'd.
Connect B to D to bypass everything and then seal A and C. (I am referring to the first two pics)
Here's another pic to have a better understanding on what you are doing.
I have used the car in temperatures of -7 degrees Celsius with no problems at all.
Connect B to D to bypass everything and then seal A and C. (I am referring to the first two pics)
Here's another pic to have a better understanding on what you are doing.
I have used the car in temperatures of -7 degrees Celsius with no problems at all.
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07-19-2009, 01:19 PM
#9
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Yes, dyno's measure the performance parameters of an engine. Assuming the kangarooing is caused by sudden variation in torque then yes a dyno will measure it. Think it might be thought of a little dimly to unmount my own cars engine and sling it on one of my dynos at work just to prove a point though. Any other questions?
All I want is to see empirical data rather than subjective opinion that it actually makes a difference
All I want is to see empirical data rather than subjective opinion that it actually makes a difference
07-19-2009, 01:33 PM
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Anyway data from other forum members shows a temperature drop in the air inside the intake manifold. You can do a search for the exact numbers but i remember something like 10 degrees. I have not done any measurements myself since i lack the equipment but i have no reason to doubt what the other have found. To sum up there is some performance and there is no risk in this mod.