What size intercooler piping should I use?

[Nicen96]

Ok here is the scoop i have a fully built 98 sr20det going in a 1996 240sx se. I am going with gt35r turbo, Aem ems, and other good things too. I trying to figure out what size intercooler piping to go with on the hot and cold side. Any help will be great with my build. Thanks and will some explain to me how to up load pictures on here to show you people what i have going on so far with my build.

[kentuckyslider]

For the pics, first you have to upload your photos to photobucket and establish a URL for each pic. Then you copy and paste the URl into your post and highlight it and click the insert image Icon.

[Nicen96]

Thanks kentuckyslider what about the piping size.

[schanne]

2 1/2 inch

[kentuckyslider]

Schanne, From Ormond beach, and timeshare!!! You must know my best man, Tyler Fowler?

[homeslicej2]

Thanks kentuckyslider what about the piping size.

2.5 inch hot pipe, 3 inch cold pipe.

[Hijacker]

Retitled the thread to generate a few more hits.

Matt, do you mind resizing your sig? The pictures are a bit too big.

[inkslingers13]

X2,

Retitled the thread to generate a few more hits.

Matt, do you mind resizing your sig? The pictures are a bit too big.

and i have full custom 3 inch but i have huge plans for this motor so.. id stick to 2 to 2.25 hot and 2.75 cold

[Nicen96]

How much power do you plan on making. I plan to make 500hp for sure with a gt35r.

[inkslingers13]

thats alot of power. if i were you, id go full 3inch. but alot of people will say go smaller on the hot side. so 2.5 hot and 3 cold

[DrifterProdigy85]

definitly 2.5 hot piping and 3 cold piping. also go with 90mm throttle body. stock throttle body becomes restrictive over 450hp IMO.

[slow s13]

why do people insist on smaller hot pipe? I think since hot air takes up more space the pipes should be the same size or the hot pipe should be bigger. I think it originates from intercooler kits that use a smaller hot pipe so people just copy what they did.

[datsun2401972]

Because what "they" did was researched with thousands of dollars? That's my theory.

[Nicen96]

so what should i do with sizing on this since i am not for sure on what size to use. thanks for input

[DrifterProdigy85]

For the hotside, i say go with whatever size the Compressor Outlet is. Most T3 turbos is 2.5". Then for the coldside go with as close to the TB size that you have. Using a 3" hotpipe is just gonna take longer to fill when the air going into it is only coming from a 2.5" opening.