View Full Version : I/C piping diameters...

08-23-2002, 01:19 AM
Just not sure if it would be best to go with a 3" pipe to the intake manifold on the cold pipe side from the intercooler or just use the 2.75" diameter to intake. The reason I ask is becuase my I/C which is from a R33 GTR has 3" inlet/outlets so no sure if keeping with the 3" from the cold side to intake manifold will yeild a significant pressure drop versus sticking to the 2.75". Thanks


08-23-2002, 01:27 AM
it is more trouble for me to get 2.75 pipes. So i use 2.5 for the cold side and 2 or 2 1/4 for the hot pipe.

just get a reducer silicone hose connector. it runs about $13-16.