What is the best intercooler up-grade?
03-26-2011, 12:04 AM
#46
Nordschleife Master
I am firmly in the "factory did it right" camp. The only improvement that I would look to make on the factory intercooler would be to provide relief venting behind it (ala 968 Turbo RS), which is something I will be doing soon.
The *worst* thing you can do is cut the alleged stock IC inlet restriction off and replace it with something bigger. It WILL NOT FLOW BETTER. Thats not opinion, its fact, and is backed up by a dead dude named Bernoulli who knew what he was talking about. There have been plenty of advances in materials science since the factory IC was designed and built so I am not saying a better IC couldn't be built, but flow dymanics haven't changed and trying to alter inlet speed with a bigger chamber messes EVERYTHING up
If you are pushing 400+rwhp on a track car, a FMIC probably makes some sense. For a street car, you'll get nothing, imo, as it would be the rare occasion that you'll heat soak it, unless like Chris said, you are on the Autobahn.
Fair disclosure, I have done plenty of things on my own cars that have made no sense but I liked it anyway, so if thats your thing, you'll get no argument from me. Have fun!
The *worst* thing you can do is cut the alleged stock IC inlet restriction off and replace it with something bigger. It WILL NOT FLOW BETTER. Thats not opinion, its fact, and is backed up by a dead dude named Bernoulli who knew what he was talking about. There have been plenty of advances in materials science since the factory IC was designed and built so I am not saying a better IC couldn't be built, but flow dymanics haven't changed and trying to alter inlet speed with a bigger chamber messes EVERYTHING up
If you are pushing 400+rwhp on a track car, a FMIC probably makes some sense. For a street car, you'll get nothing, imo, as it would be the rare occasion that you'll heat soak it, unless like Chris said, you are on the Autobahn.
Fair disclosure, I have done plenty of things on my own cars that have made no sense but I liked it anyway, so if thats your thing, you'll get no argument from me. Have fun!
And drive at Autobahn speeds.. on occasion.. in a simulator...
03-26-2011, 01:06 AM
#47
Then you should refer to the very last statement I made in that post! lol
03-26-2011, 03:46 AM
#48
Rennlist Member
As far as doing this to one's car .. i.e cutting into the bumper that way ..
I may be having nightmares for the next 2 weeks, after looking at those pictures !!! I'll be the first to admit, I am a bit on the **** side, but jeeezzzee weezzee
Those pictures should have a viewer warning ...
Jon, I feel for ya bud
It's bad enough cutting once, but multiple time yeeks....
The only way I could justify .. No, come to think of it, there is no way .. I was going to use some sexual parody, but could come up with something that was witty enough ...
Maybe for a 1000HP ...
But to each his own ....
Best regards
Ed
03-26-2011, 05:23 AM
#49
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Only mod for mine was cut some of the bumper cover away. that's it.
reason i replaced it, was because the original was in poor condition. don't ask how. and it's doing its job
reason i replaced it, was because the original was in poor condition. don't ask how. and it's doing its job
03-26-2011, 10:14 AM
#51
03-27-2011, 01:24 AM
#53
Three Wheelin'
Cheers,
Mike
03-27-2011, 01:29 AM
#54
Three Wheelin'
Bernoulli states that increasing speed at a certain point will lower the pressure at the same point. I'm a bit rusty a this type of calculation, but I do not understand what benefits introducing a restriction that causes higher overall pressure in the system, and increasing the sped at the inlet of the IC would give. I'd love to have a good excuse for not cutting my IC, so please correct me if I'm wrong 
Cheers,
Mike
03-27-2011, 05:53 AM
#55
03-27-2011, 10:14 AM
#56
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Base it on a 2.5" intercooler pipe and 600cfm (thats about 350rwhp)......
03-27-2011, 10:36 AM
#57
+1 to mikey, he gets it.
Last edited by User 41221; 03-27-2011 at 12:31 PM.
03-27-2011, 01:56 PM
#58
EDIT: Link to Lindsey: http://www.lindseyracing.com/LR/Parts/951INTCOOL12.html
03-28-2011, 03:32 AM
#59
Three Wheelin'
03-28-2011, 05:44 AM
#60
This was meant as a question not a statement, my bad (and my statement of agreeing with you was meant to be a" what you say makes sense"), and besides it is taken out of context. Why don't you get of you high horse and start backing up your claims with facts and references. It should be easy to explain the benefits of the stock IC intake claimed by you and sh944 unless you actually do not know what your talking about. Instead your only giving half explanations and references without any meaning. I have given you a reference to Lindsey racing claiming other results than you, and my questioning about Bernoulli was easily ignored and replaced with "I now what I'm talking about you don't" post. Prove why the intake is better left untouched, and by proof I mean references to test data or fluid dynamic calculation
Last edited by KSira; 03-28-2011 at 09:14 AM.