Forced Induction Superchargers | Turbochargers | Intercoolers

Intercooler/cold side pipe size

Thread Tools
 
Search this Thread
 
Old Aug 28, 2008 | 04:38 PM
  #1  
v8bug's Avatar
Thread Starter
On The Tree
 
Joined: Mar 2006
Posts: 144
Likes: 0
Default Intercooler/cold side pipe size

Setup: 5.3 stock, Master Power t70 .68ar, will be street driven, pump gas

Turbo compressor outlet is 2.5"

Can I run 2.5" pipe to a 2.5" inlet/outlet intercooler, than transition up to throttle body size after the intercooler?

Or should I run a larger intercooler inlet/outlet and larger pipe alltogether?

Any help would be great

Thanks,

Matt
Reply
Old Aug 28, 2008 | 04:39 PM
  #2  
67Firebird455's Avatar
12 Second Club
20 Year Member
Photogenic
Photoriffic
Liked
iTrader: (27)
 
Joined: Sep 2004
Posts: 2,552
Likes: 12
From: Visalia, California
Default

Run what's on the intercooler, going bigger isn't going to make ANY difference unless you're going to bend (pinch) the hell out of the pipe on it's way. I had the same turbo, and sounds like the same style intercooler, 2.5 the entire way and then used a coupler to go to the MAF/TB.
Reply
Old Aug 30, 2008 | 07:56 PM
  #3  
fenix999's Avatar
TECH Resident
iTrader: (17)
 
Joined: Jan 2007
Posts: 929
Likes: 1
From: Miami, Florida
Default

Run 2.5" off the first section of the compressor housing and then immediaely run 3" since most decently sized intercoolers are 3" inlet/outlet. 3" will also help out with volume/flow bla bla. Good luck with everything.
Reply
Old Aug 30, 2008 | 07:57 PM
  #4  
fenix999's Avatar
TECH Resident
iTrader: (17)
 
Joined: Jan 2007
Posts: 929
Likes: 1
From: Miami, Florida
Default

oh wait, just saw your intercooler was 2.5", w/e you can still run 3" if you dont want to buy a new intercooler (budget $$) but you will obviously have to transition the pipes down on the inlet outlet from 3"-2.5" if you use the bigger pipes
Reply
Old Aug 30, 2008 | 09:32 PM
  #5  
theblur98ss's Avatar
TECH Junkie
iTrader: (71)
 
Joined: Mar 2002
Posts: 3,703
Likes: 0
From: East Brady, Pa
Default

If you already have the intercooler at 2.5" then I'd just run everything that size. If you don't have it yet I'd get a 3" and come off the turbo with a 2.5 to 3 increaser and run the cold side in 3" just in case you decide to go bigger in the future.
Reply




All times are GMT -5. The time now is 06:56 PM.

story-0
Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?

Slideshow: We take a close look at the ONE and Artidiag 800BT2 diagnostic tools from Topdon and the reasons to buy one over the other.

By Pouria Savadkouei | 2026-05-28 11:05:11


VIEW MORE
story-1
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

Slideshow: The controversial Ferrari F6 swaps its original flat-12 for a Corvette Z06-derived LT4 V8 and sends power to four rear wheels through a custom-built drivetrain.

By Verdad Gallardo | 2026-05-26 18:23:54


VIEW MORE
story-2
7 Most Reliable High-Performance Engines GM Has Ever Built

Slideshow:These GM engines didn't just make huge power, they survived abuse, boost, track days, and six-digit mileage with a reputation for refusing to quit.

By Verdad Gallardo | 2026-05-21 16:45:27


VIEW MORE
story-3
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Slideshow: This heavily modified 1971 Camaro mixes classic muscle car styling with a fifth-generation Camaro interior and modern LS3 power.

By Verdad Gallardo | 2026-05-12 18:06:42


VIEW MORE
story-4
6 Common C5 Corvette Failures and What's Involved In Repairing Them

Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.

By Pouria Savadkouei | 2026-05-07 18:44:57


VIEW MORE
story-5
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-6
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-7
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE
story-8
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE
story-9
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

Slideshow: A one-off sports car that looks like a vintage Italian exotic-but hides a C6 Corvette underneath-just sold for the price of a new mid-engine Corvette.

By Verdad Gallardo | 2026-03-23 18:53:41


VIEW MORE