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Finished cutting and fitting up some 2.25" aluminum tubing for my lower charge pipe upgrade. Going to weld it up tomorrow after work.
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I'm using aluminum tubing. Check out the pics I posted.There's a guy on the web who makes them out of silicon and reinforced with Nomex for aircraft and high performance automobiles.
He calls himself GEE-BEE at zip 92270.
Not since it's much less restrictive at the compressor outlet. There's a little plastic resonator of sorts that the stock rubber tube attatches to that knecks down to about 1.5" for about 3" in length before going into the 2.25" rubber tube. The new tube opens up to 2.25" right from the compressor outlet with no restrictions.Are you concerned about heat?
ThisCan we get a picture of the restriction that you are speaking of?
I wouldn't associate the power drop off with this as much as the stock tune's cam timing and commanded air fuel ratio.Good gosh man. No wonder why the power drops off so bad after 5200
1.75x2.25 and 2.25x2.5Is that one 2.25 x 2.0 coupler and one
2.5 x 2.25 coupler?
I usually go with the same diameter as the intercooler inlet/outlet as to not cause a restriction of any kind. I also went with 3" cold side tubing because that's where my maf sensor is now and the original maf housing was 3".Ok, so I pulled everything apart. The Hot side turbo exit is 1.25" I.D.
That pastic adapter is 1.125" I.D. and opens up to 1.75" I.D. to match the rubber hose.
I really don't see any reason to go bigger than 1.75" I.D. on this tiny engine with a tiny turbo.
In fact, 1.75" I.D. on the hot and 2" I.D. on the cold is probably more than enough with for the stock turbo. So, it looks like the engineers did a pretty good job.