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Sir_2JZA70 Regular Location: Brisbane Registered: July 2005	Re: Intercooler piping question? Fri, 30 September 2005 22:22 The cross-sectional area of a 3" pipe is about 40% bigger than 2.5" pipe, so in theory a 3" pipe can flow 40% more than a 2.5" pipe can. Whether this will mean anything to your car will depend on what sort of turbo your using and what is your car used for. Small stock turbos will mean you shouldnt need more than the 2.5" stuff as the flow they are capable of probably isnt as much as this pipe can handle. However if your planning on going to a big single, the smaller piping may considerable restrict your power levels. Drag racing is all about top end power so bigger piping can be quite good for flow, whereas in track racing turbo response and a smooth torque curve may be much more useful to you than absolutle power. I doubt there would be much of a price difference between the too pipes though. 2.5" may be smaller but 3" is much more popular. Alot of the cost in pipework is the labour which of course would be the same for either pipe size. [Report message to a moderator]

	Subject	Poster	Date
	Intercooler piping question?	Japstang	Fri, 30 September 2005 13:50
	Re: Intercooler piping question?	terra	Fri, 30 September 2005 14:40
	Re: Intercooler piping question?	Sir_2JZA70	Fri, 30 September 2005 22:22
	Re: Intercooler piping question?	ndgcpr	Sat, 01 October 2005 03:55
	Re: Intercooler piping question?	Japstang	Sat, 01 October 2005 08:56
	Re: Intercooler piping question?	HyDrA	Sun, 02 October 2005 01:24
	Re: Intercooler piping question?	Norbie	Sun, 02 October 2005 11:05
	Re: Intercooler piping question?	Stefan	Sun, 02 October 2005 11:19
	Re: Intercooler piping question?	Norbie	Sun, 02 October 2005 12:30
	Re: Intercooler piping question?	Stefan	Mon, 03 October 2005 08:19
	Re: Intercooler piping question?	Japstang	Fri, 07 October 2005 12:12
	Re: Intercooler piping question?	joorsh	Fri, 07 October 2005 13:08

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