Ebay intercooler testing from the Pros at Buschur Racing....the facts, the truth
I have a Buschur fmic on my car. I agree that a fair comparison would be the std. Buschur fmic vs. the Ebay on a mild modified ..say 300whp Evo. I don't think any std size aftermarket intercoolers would match up well against the "race" intercooler on high boost/hp levels.
I was waiting for this, i really dont know why though......I was always gonna buy the buschur intercooler. Maybe in the middle on the summer, after i recover from the last spending spree, at buschur.....which was yesterday....hehehe
....Siigghh...... Please go back and Re Read What I said.....and think long and hard about what you said, and if it really makes a differance.
They're basically saying, "I bought a Kia, but it gets great gas mileage and the insurance is cheap. Plus, if it breaks, I can just throw it away and buy a new one."
They aren't happy that Buschur's FMIC is 1/2 the price of the ARC or HKS. They don't care that it costs less than Perrin, Greddy, APS, Slowboy, and Turbonetics. They don't care that it probably outperforms all of them. They are just beating up the ONLY GUY who took the time to try to do any kind of a fair test and share it with them.
I don't even know why Dave tries anymore. If I were him, I'd say "**** EVOM, YOU'RE ALL A BUNCH OF WHINY B!THCHES!"
Holy crap
, they ate the heck out of this thread... I don't even want to look at this garbage anymore because of the spammers! All I know is my Buschur RACE FMIC will be just as good and strong on my stock turbo as it will be when I finish my 37R build... And the greatest thing is..... I WONT HAVE TO BUY ANOTHER IC, PIPE OR ANY OTHER PIECE TO MAKE IT WORK... extra cost $0. Now the people with EBAY IC... get their a$$es handed to them by their friend, they want extra power, they go buy another IC, and hell, with shipping and extra crap, watch them spend the same amount of money as I did with one purchase.... Oh I love the science!
David thank you for doing this, you really make people here sound like they got a Banana stuck in their mouth because I don't know about you, but I can't understand anything that they're saying!!!
, they ate the heck out of this thread... I don't even want to look at this garbage anymore because of the spammers! All I know is my Buschur RACE FMIC will be just as good and strong on my stock turbo as it will be when I finish my 37R build... And the greatest thing is..... I WONT HAVE TO BUY ANOTHER IC, PIPE OR ANY OTHER PIECE TO MAKE IT WORK... extra cost $0. Now the people with EBAY IC... get their a$$es handed to them by their friend, they want extra power, they go buy another IC, and hell, with shipping and extra crap, watch them spend the same amount of money as I did with one purchase.... Oh I love the science!David thank you for doing this, you really make people here sound like they got a Banana stuck in their mouth because I don't know about you, but I can't understand anything that they're saying!!!
Its like these people have some sort of personal stock in Ebay, the knock off intercoolers, or both....
If you think the ebay intercooler better, if you think Buschur is lying, if you think Buschur is over-priced, why do you feel the need to make it your crusade to down him in a thread that had a proper test conducted with validated numbers? Just buy your Ebay intercooler and call it a day.
Are you that interested in helping other people? Or do you just want to argue with one of the most recognized 4G63 related shops on the US? If you guys are that much about helping others, there are other avenues that are much more deserving of your time...
If you think the ebay intercooler better, if you think Buschur is lying, if you think Buschur is over-priced, why do you feel the need to make it your crusade to down him in a thread that had a proper test conducted with validated numbers? Just buy your Ebay intercooler and call it a day.
Are you that interested in helping other people? Or do you just want to argue with one of the most recognized 4G63 related shops on the US? If you guys are that much about helping others, there are other avenues that are much more deserving of your time...
The biggest problem that I have with the eBay interfooler is that it is a direct copy off of AMS's designed. I'm sure that AMS appreciates the rip-off. Immitation is the hightest form of flattery and all, but for a company to spend tons of money on research and development just to have it jerked off by some ChinaPartsSoldOutOfDormRoom.com eBay seller. Not only that, but I'm sure there's people out there rocking the eBay interfooler and they'll claim that it's the AMS core, and when their car doesn't perform as good as it should....well, that's bad press for AMS!
Dave, how happy would you be if every one of your parts was reverse engineered by 7-year-olds and remade to *look* just like yours, and *perform* at about 75% of the ability of yours. On top of that, they will be sold at about 25% of the price you sell your stuff for. Screw your money spent R & D'ing stuff. Didn't people used to try and copy your coil-on-plug designs back in the day?
Folks, eBay ripoff parts not only hurt the original maker, but they end up hurting the community as well. Eventually shop's like David's will say "screw it, it's not worth the expense. I'm out of this game." and we'll be left with one or two companies to choose from, none of them inside the US.
Regardless, I'll get back on-topic here. The eBay interfooler is junk. Buy it if you are all about bling and don't want to go fast, or if you're just into that kind of self-abuse.
Dave, how happy would you be if every one of your parts was reverse engineered by 7-year-olds and remade to *look* just like yours, and *perform* at about 75% of the ability of yours. On top of that, they will be sold at about 25% of the price you sell your stuff for. Screw your money spent R & D'ing stuff. Didn't people used to try and copy your coil-on-plug designs back in the day?
Folks, eBay ripoff parts not only hurt the original maker, but they end up hurting the community as well. Eventually shop's like David's will say "screw it, it's not worth the expense. I'm out of this game." and we'll be left with one or two companies to choose from, none of them inside the US.
Regardless, I'll get back on-topic here. The eBay interfooler is junk. Buy it if you are all about bling and don't want to go fast, or if you're just into that kind of self-abuse.
Here is the important data:
Air temp after the intercooler at the start of the pull, 62.60 degrees.
Air temp after the intercooler at the end of the pull, 69.80 degrees.
Increase in air temp 7.2 degrees.
Peak boost was 40.3 psi.
We then bolted on the Ebay special that is an AMS attempted copy. Absolutely NO changes were made to anything other than bolting on the I/C.
Air temp after the intercooler at the start of the pull, 62.60 degrees.
Air temp after the intercooler at the end of the pull, 122 degrees!!
Peak boost went up which I find strange as it hit 42.1.
Air temp after the intercooler at the start of the pull, 62.60 degrees.
Air temp after the intercooler at the end of the pull, 69.80 degrees.
Increase in air temp 7.2 degrees.
Peak boost was 40.3 psi.
We then bolted on the Ebay special that is an AMS attempted copy. Absolutely NO changes were made to anything other than bolting on the I/C.
Air temp after the intercooler at the start of the pull, 62.60 degrees.
Air temp after the intercooler at the end of the pull, 122 degrees!!
Peak boost went up which I find strange as it hit 42.1.
We have an equation for checking the amount of heat lost or gained by the fluid on one side of the heat exchanger (ie, just the turbo air or just the outside air):
Q = m x Cp x DT
Q is the energy transferred. It will have the exact same value as the Q in the first equation. If 5000 BTU are transferred from turbo air to outside air, then Q = 5000 for this equation
m is the mass flowrate (lbs/minute) of fluid, in this case either turbo air or outside air depending on which side you're looking at.
Cp is the heat capacity of the air. This is a measure of the amount of energy that the fluid will absorb for every degree of temperature that it goes up. It is about 0.25 for air and 1.0 for water. Air doesn't do a great job of absorbing heat. If you put 10 BTU into a pound of air the temperature of it goes up about 40 degrees. If you put 10 BTU into a pound of water, the temperature only goes up about 10 degrees! Water is a great energy absorber. That's why we use water for radiators instead of some other fluid.
DT is the difference in temperature between the inlet and outlet. If the air is 200 deg going in and 125 deg coming out, then DT = 200 - 125 = 75. Again, on the cooling air side the outlet temperature is the average "mix" temperature.
Notes:
I'll be using 65lbs/min for the flow rate since thats near the max of a gt35r turbo.
I'll also be assuming that the output temperature of a GT35R at peak boost is around 300F.
Buschur Intercooler:
Q = 65lbs/min * 0.25 BTU/lb-F * (300-69.8 F) = 3740.75 BTU/min
Ebay:
Q = 65lbs/min * 0.25 BTU/lb-F * (300-122 F) = 2892.5 BTU/min
I don't have the air temp behind the intercooler otherwise I could calculately how effeciently the intercooler Is pulling heat out from the charge air into the flowed air. I could probably fake something if I had the dimensions of the intercoolers themselves

Referenced:
http://www.gnttype.org/techarea/turbo/intercooler.html
+1, just so we can put this to rest
I think this thread is going on its last leg. No one is reading through all of the posts to get the full story (I have read every single one so far) I believe some of us should get to gether and have a dyno day ourselfs to settle this. That way if you have something to test, you can do it, instead of reling on someone else to do it, then bash there testing methods.
ok Mr. Dave Buschur... i am convinced that your IC out performs the Ebay IC but that doesnt mean that the Ebay IC doesnt Out performs other intercoolers including the stock one... lets say the scenario changed and you did the testing and found out that the Ebay IC core out performed the Buschur one!!!! would you seriously come on here and say, "yes guys the Ebay IC out performs my IC and even better its 1/4 the price that i sell mine for".. i dont think you would say that... im just tryna say that a 3rd party should be putting these cars and IC's to the tests.... but then again Buschur parts speak for them selves and they have out performed many other high end brand names... what im tryna say is that Buschur usually never gives us BS....
ok Mr. Dave Buschur... i am convinced that your IC out performs the Ebay IC but that doesnt mean that the Ebay IC doesnt Out performs other intercoolers including the stock one... lets say the scenario changed and you did the testing and found out that the Ebay IC core out performed the Buschur one!!!! would you seriously come on here and say, "yes guys the Ebay IC out performs my IC and even better its 1/4 the price that i sell mine for".. i dont think you would say that... im just tryna say that a 3rd party should be putting these cars and IC's to the tests.... but then again Buschur parts speak for them selves and they have out performed many other high end brand names... what im tryna say is that Buschur usually never gives us BS....
You are correct, Dave even posted this that he would infact not post anything if it did make more power then his Race core.






