yes, the test doesn't replicate real world conditions, but I give the guy the thumbs up for effort

He did have a small fan blowing on the outstide of the intercooler to simulate the cooling air through the core. The fan is in one of the pictures, to the far right.

 

I think he did a good job.
But try it with a shop vac motor and 2 temp probes.....

 

I believe the "yellowish coating" on the stock IC is oil from the PCV system and it hurts IC efficiency (if you tested one without the oil film it would do better). It's also the reason you put a catch can on your car (to keep the oil out of the intake system in the first place).

 

I dont want to come off as a jerk but the science behind what he did was weak. I give an A for effort as well but a d- for content.

600cfm airflow is 10 cubic feet of air in one second. thats like sucking the engine compartment dry twice every second. that little blower is prolly 40-50 cfm. I could give ten other reasons this test should be taken with a grain of salt.

 

Hell, even vendors here cant even do the temperature/pressure drop test correctly, let alone a guy with limited resources.

How many ppl even think of stuff like that and trying it out?

Good job to the thread starter!

 

Sure, his tests are far from real world, but the flow rate test definitely points towards the eBay IC producing less pressure drop. However, its still not enough for me to buy an eBay IC. I'd want to see a more realistic temperature drop test.

 

Good test, im glad some one stepped up and at least attempted to answer some of the questions about how this IC performs.

 

[QUOTE=
600cfm airflow is 10 cubic feet of air in one second. thats like sucking the engine compartment dry twice every second. that little blower is prolly 40-50 cfm. I could give ten other reasons this test should be taken with a grain of salt.[/QUOTE]

I know its not like the real world test. The test only gives information. Trying to test
it on a dyno also has too many variables. My little blower probably puts out 40-50cfm but a lot more heat than the turbo would. With that small of CFM flow the stock IC is already restrictive. What would you think it would do at a high CFM? It's like comparing a garden hose to a fire hose. Maybe you would prefer fighting fire with a water hose.

 

Venders don't do the test because a bigger core will out perform the stock. Every brand uses the same material. The test results from it is probably close to the same.
Why would they want to show you that since the prices are so different. 20hp for $700 or 20hp for $150, make you choice.

 

My oil catch can is going in with the new intercooler.

 

Your little blower is too weak and is just really sensitive to any kind of restriction in front of it. Are you aware it takes like 80hp to drive a turbo? do you know how much hp it takes to drive your little blower? more heat from the blower? now thats a funny one. whats gonna make more heat? 40 pounds of air per minute at 300 degrees or 1/2 pound of air per minute at 1000 degress?

seriously folks, I cant believe you guys think this testing has any value.

 

A for effort. The decision should be made on the dyno.
Thanks for at least putting some data out there and not just running your mouth.

 

that DIY spirit! i like

 

well we had no tests prior to this and I give the guy credit, why won't the critics come up with a better test, a more scientific one!

 

Would you plz stop and cut him some slack before you mislead the thread.. it is evident that your hatin.. who cares dude move on..

EBAY IC 1
Stocker 0