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The mkiv Supra Owners Club

What are the effects of a knackered intercooler?


RedM

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What exactly happens when an IC is know longer doing it's thing? If you have a leak, what happens?

 

Tell me everything. I have a CW SMIC coming soon so I'm pootling around to avoid doing any harm.

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I don't think I have leak in my IC. I was just enquiring about the effects of old ICs. There is a wealth of info about why they are great and what they do but not much about what happens when they are old/fail/etc. other than 'buy a new one'.

 

Most of my driving is off boost and on long trip on the M-way I tend to go steady.

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When Jon's SMIC needed replacing we put one of my 2 Row FMIC's on his and did a before and after dyno

 

I seem to remember (and I dont have the figures in front of me now) that he made a 20HP gain straight away

 

If interested I will hopefully be posting up some info later that might interest you

 

Picture below is my uprated SMIC that I have on my car

 

http://miami-gt.co.uk/images/smic.jpg

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When your turbos compress the air it also heats it up. The intercooler takes out most of that heat. If your intercooler isn't working properly, it takes out less and less heat - pretty much none of it once all your fins have crumbled away.

 

A hot intake charge not only loses you power (much less dense air) but can also cause detonation. So it's pretty bad. If you ran no intercooler at all you probably wouldn't be able to boost past 0.5bar with blowing your engine up.

 

-Ian

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Hmmm, my EGTs have gone up a fair bit recently (only on motorway), and I'm sure the pressure has as well. Getting worried now!

 

I know everyone talks about the fins crumbling, but would they literally flake off in your hand if they were knackered?

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Hmmm, my EGTs have gone up a fair bit recently (only on motorway), and I'm sure the pressure has as well. Getting worried now!

 

I know everyone talks about the fins crumbling, but would they literally flake off in your hand if they were knackered?

Hi elliot, you have a blitz front mount dont ya, thats what was on when allen had the car.

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my first sign of a knackered cooler was in france last year, the weather was boiling like 40 d/c and even on stock boost i was detting as the 2nd tubby come on, so it was tootle home and get on the phone to mr wilson, you wont half notice a difference when you get the new i/c on.

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Hi elliot, you have a blitz front mount dont ya, thats what was on when allen had the car.

 

Yes, that's right - had it nearly 2 years now & loved every minute of it! :D

 

Do you know Alan, or the car?

 

It is indeed a Blitz FMIC I've got, haven't checked the fins yet, totally slipped my mind.

 

It's due in for a service on Wednesday so will get them to check it over then.

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