Heat Soak

[ugy]

Some thoughts please.

Whenever I come home from driving the T I automaticaly see how hot the

intercooler is and always it is cool or at worst slightly warm. Recently I lifted

the bonnet and found that the hose between the IC and the throttle body was

very hot and the longer the car sat the hotter it got.

Surely this is detrimental to have cool air from the IC and hot air to the throttle

body. I realize that there is heat soak from the engine which heats up the hose

the longer it sits but if you are taking the car to the drags and sitting in line

burnouts..etc, surely the hose must be producing warm air which is not good.

It seems to me that the Cobra system where the hose goes straight into the plenum would be the most efficient as there is no heat soak in the hose as it

is on the other side of the engine away from the heat.

I dont want to go changing the system that I have now and have a question.

Would wrapping the hose in header wrap make any difference, or would I be waisting my time and money?

Any thoughts would be appreciated.

Thanks, Bill.

PS...I bought this subject up before but was'nt sure if I mentioned header wrap.

[Guest]

The less plumbing the better but what ya gunna do,to change stuff cost you monita...

vik...wanna change stuff??? spend some monita,speed costs$$$

[bjc]

It cant hurt wrapping it as the heat from the exhaust does get extreme at times.

Brett

[DBOSS]

Sell it and buy a V8

[Ralph Wiggum]

When the cars on boost and running hard do you think the air would have time to heat up? its travelling at very high speed and air is a fairly poor conductor....what do you reckon?

[Eugene]

  Lucus1 said:

When the cars on boost and running hard do you think the air would have time to heat up? its travelling at very high speed and air is a fairly poor conductor....what do you reckon?

<{POST_SNAPBACK}>

So, if what your saying is true, then an intercooler wont work either?

[turbotom]

  Eugene said:

  Lucus1 said:

When the cars on boost and running hard do you think the air would have time to heat up? its travelling at very high speed and air is a fairly poor conductor....what do you reckon?

So, if what your saying is true, then an intercooler wont work either?

No Eugene.... What Lucas1 is saying, in practical terms, is correct.

Think about the relationship of exposed surface area to volume ratio.....

Big difference between an IC and a smooth bore pipe.

[Eugene]

  turbotom said:

  Eugene said:

  Lucus1 said:

When the cars on boost and running hard do you think the air would have time to heat up? its travelling at very high speed and air is a fairly poor conductor....what do you reckon?

<{POST_SNAPBACK}>

So, if what your saying is true, then an intercooler wont work either?

<{POST_SNAPBACK}>

No Eugene.... What Lucas1 is saying, in practical terms, is correct.

Think about the relationship of exposed surface area to volume ratio.....

Big difference between an IC and a smooth bore pipe.

<{POST_SNAPBACK}>

Yeah, I know, I was in a Nasty mood when I put that up, there would be an advantage, but not alot, an IC is designed to tranfer heat, a smooth rubber pipe isnt, but anything you do to keep the inlet temp down will make a difference.

18 rwkw just by spraying water on a intercooler, 5th run, engine as hot as hot, sprayed the cooler for about 10 seconds with a garden sprayer, then did the run, 18rwkw, straight up.

I think it would help more on the dyno(poor airflow in engine bay etc) than on the raod, but cruising through traffic would be much the same.

I have seen a few guys with ceramic coated exhaust manifolds and turbo housing, with a good result in lowering under bonnet temps.

Much like running a cooler thermostat with the edit, cooler under bonnet temps.

[turbotom]

too right about under bonnet temps, eug,

I think there IS a need for a practical (and neat) method of getting heat out of the engine bay.... especially in modified T's.

Some have talked about removing the rubber seals front and rear of bonnet....

Any feedback? cheap way out, but how effective?

A nice looking bonnet vent/scoop/duct system might be the go.

Just so hard to make something which IS functional and actually looks good.

tom

[ugy]

  bcr01 said:

  DBOSS said:

Sell it and buy a V8 

<{POST_SNAPBACK}>

An watch all the T's Pass you buy!

<{POST_SNAPBACK}>

No way