Has anyone had the opportunity to log the efficiency loss of our IC without a CC? Real numbers, nothing anecdotal.


Michael

 

I don't know of anyone who has measured it. I need to pick up a new temp gauge or two (one of mine finally outlived its life expectancy long after I got my $25 worth out of it). I don't have a CC, so my IC has a light coating of oil. I can measure the E in its current condition. I can clean it thoroughly, dry it, reinstall it and measure the E afterwards.

My hypothesis is that it won't make a measurable difference beyond the inherent noise in the testing but I could be wrong. It certainly shouldn't hurt E.

 

Andy,

I was hoping you would respond.

What is E? Flow? Pressure?

I have this weird idea; run a couple of track sessions and log IC temps during each. Then, I'll clean the IC at the track, run two more sessions and log IC temps again. If you think the margin is small, my methods will need to be extremely accurate. Otherwise, one small error in technique could be larger than the potential benefit - meaningless.

I do not have a CC either and the car will break 40,000 miles this weekend.

What devise would you recommend, and, how difficult would it be to install at the track?

Thanks a bunch,

Michael

 

I used E as shorthand for Efficiency:

Ei = (inlet - outlet)/(inlet - ambient)

For example:

Run 3: 2nd gear, 2000 to 6500 rpm
Ei = (89.5 - 32.9)/(89.5 - 8.5) = 70 %

 

Andy,

Do you think an infared temp sensor will be accurate enough? The actual values won't matter, just the deviation. I use this for checking tire temps.

 

I don't think IR is a good idea since you want to measure the temperature of the air, not the temperature of the metal. Air temp changes very quickly unlike the large mass of intercooler inlet and outlet piping. Here's what I used:

http://scientificsonline.com/product.asp?pn=3105400

 

Thanks Andy...track event is tomorrow...maybe too late to get one. If I do I'll post some results back here.

Michael