Intercooler efficiency - whats the best?
#1
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An efficient piping setup for the intercooler is key to have quick spool up and a good power increase, so I've been looking at the different IC options out there - money is always an issue so I was considering making my own piping.... but what is the most efficient design??
The JimB pipes I seem to hear are cheap but not all that efficient - is that because they dip down under the radiator both on entry to the IC and exiting it?
Trackdog's kit seems like it would be super efficient - they more the radiator back and go straight from the turbo to the front of the car and then just angle straight down in front of the radiator... would that be the best setup or is there something more efficient?
An what about piping diameter? Larger diameter allows more flow but requires more time to fill it up - thus a bit more lag before boost... what is an otimal setup for a Greddy kit? Most of the JimB setups use 2" but would 2.5" be better all the way around??
-Ryan
The JimB pipes I seem to hear are cheap but not all that efficient - is that because they dip down under the radiator both on entry to the IC and exiting it?
Trackdog's kit seems like it would be super efficient - they more the radiator back and go straight from the turbo to the front of the car and then just angle straight down in front of the radiator... would that be the best setup or is there something more efficient?
An what about piping diameter? Larger diameter allows more flow but requires more time to fill it up - thus a bit more lag before boost... what is an otimal setup for a Greddy kit? Most of the JimB setups use 2" but would 2.5" be better all the way around??
-Ryan
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Well b/c I wanted the least amount of lag on my set-up I went with an srt4 i/c and a smaller rad, thus the i/c pipes run right beside the rad and are basiclly straight with no bends. And for size I'm using 2.5 on a t28 turbo.
Last edited by dc2696; 07-22-2006 at 01:20 PM.
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I have an MX-6/Probe intercooler with 2.0" piping until about a foot before the throttle body wher it moves to 2.5". I can report very good throttle response and spool.
As I recall, Porsche's 917 Can-am car used 2.0" charge piping: http://forums.pelicanparts.com/uploa...1109163873.jpg
As I recall, Porsche's 917 Can-am car used 2.0" charge piping: http://forums.pelicanparts.com/uploa...1109163873.jpg
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Seems like the 2" piping allows for a faster spool up... could be a great choice. I wonder how much the 2" piping restricts power vs. 2.5" once you are in boost though... what whp are you attaining at what psi?
-Ryan
-Ryan
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Originally Posted by ThePass
Seems like the 2" piping allows for a faster spool up... could be a great choice. I wonder how much the 2" piping restricts power vs. 2.5" once you are in boost though... what whp are you attaining at what psi?
-Ryan
-Ryan
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Just wanted to add a link to a site that has some pretty good info and some dyno runs (near the bottom) of other cars showing changes in spool with different setups.
http://www.are.com.au/techtalk/intecoolersMR.htm
http://www.are.com.au/techtalk/intecoolersMR.htm
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I had roughly a 1psi pressure drop after adding the intercooler. I think that's pretty standard. Of course, I'm running a custom electronic boost controller to make up for that pressure drop.
As a side note, anyone interested in being a beta tester for a new EBC that'll hopefully be hitting the market soon? I can't promise too much this exact second, but I think we'll be in need of a couple more testers soon. PM me.
As a side note, anyone interested in being a beta tester for a new EBC that'll hopefully be hitting the market soon? I can't promise too much this exact second, but I think we'll be in need of a couple more testers soon. PM me.
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