View Full Version : Intercooler pipes v.measurements and angles

06-15-2010, 10:14 PM
So upon ChrisD's advise and experience with Global Tech & Engineering, I'm building a list to buy my intercooler pipes.

I'm a bit confused on some measurements though.

Case in point, I'm looking at the 90* bend aluminum pipes in 2.5" 16gauge.


I know what the Tangent length is, that being there's 5" of straight pipe on each side before the bend starts and/or ends.

I'm not 100% clear on what the CLR (Centerline radius) is. From what I've read, it's the measurement from the pipe bend to the center line. Based upon that, does a smaller CLR mean a tighter bend/shorter overall pipe length?

06-15-2010, 10:20 PM

There's the different 90* bends available. I'm thinking either the 3" or 9" CLR, that should be a good size.

06-15-2010, 10:22 PM

06-15-2010, 10:38 PM
Perfect! I guess my geometry skillz are still somewhat alive!

So a smaller CLR=smaller pipe. I'd want to stick with some 3" CLR.

06-15-2010, 10:44 PM
Mine were the 4" CLR versions, which worked pretty well, just clicked Home > Mandrel bent elbows > Stocked mandrel bent elbows > 2.5"

I think that's what they stock ready to ship, the other stuff they bend on demand.

http://www.globaltecheng.com/ProductCart/pc/viewCategories.asp?SFID=2||4||1||6&SFNAME=Gauge||Material+of+Construction||Size||Cent er+Line+Radius&SFVID=2||25||12||30&SFVALUE=16||Aluminum||2.5%22||4.0%22&SFCount=3&page=0&pageStyle=h&idcategory=65&VS1=0&VS2=0&VS4=0&VS3=0&VS6=0

fyi your 2nd link was 2.25".