FORCED INDUCTION Turbos | Superchargers | Intercoolers | H2O/Meth Injection
Sponsored by:
Sponsored by:

2 1/2" or 3"

Thread Tools
 
Search this Thread
 
Old Apr 7, 2006 | 01:15 AM
  #1  
macs406's Avatar
Thread Starter
On The Tree
 
Joined: Apr 2005
Posts: 129
Likes: 0
From: roy, utah
Default 2 1/2" or 3"

What would be better with a FMIC 3" or 2 1/2" intercooler piping. I am running a GT67 with a 6.0 chevy HD.
Reply
Old Apr 7, 2006 | 01:50 AM
  #2  
PappyDan's Avatar
Tribe Shaman
iTrader: (4)
 
Joined: May 2004
Posts: 3,050
Likes: 0
From: Texas
Default

3" will do
Reply
Old Apr 7, 2006 | 01:55 AM
  #3  
F8L Z71's Avatar
12 Second Truck Club
 
Joined: Feb 2002
Posts: 5,575
Likes: 0
From: Sacramento, CA
Default

3" is what we all used.
Reply
Old Apr 7, 2006 | 02:16 AM
  #4  
Wilde Racing's Avatar
How do I change this text
iTrader: (26)
 
Joined: Jan 2005
Posts: 7,294
Likes: 2
From: Behind the TIG welder
Default

another vote for 3inch.
Reply
Old Apr 7, 2006 | 06:11 AM
  #5  
ktmrider's Avatar
TECH Fanatic
 
Joined: Apr 2003
Posts: 1,107
Likes: 2
From: Albuquerque, NM
Default

Aye, 2.5" will cause a lot of restriction.
Reply
Old Apr 7, 2006 | 12:31 PM
  #6  
kbracing96's Avatar
TECH Senior Member
iTrader: (26)
 
Joined: Jul 2004
Posts: 9,485
Likes: 31
From: Oakland, OR
Default

I ran 2 1/2 inch from the turbo to the intercooler and then 3 inch from the intercooler to the TB. Seem to work well for me.
Reply
Old Apr 9, 2006 | 10:55 PM
  #7  
macs406's Avatar
Thread Starter
On The Tree
 
Joined: Apr 2005
Posts: 129
Likes: 0
From: roy, utah
Default

with 3" does it cause more boost lag than the 2 1/2?
Reply
Old Apr 10, 2006 | 12:37 AM
  #8  
PappyDan's Avatar
Tribe Shaman
iTrader: (4)
 
Joined: May 2004
Posts: 3,050
Likes: 0
From: Texas
Default

nope sure wont
Reply
Old Apr 20, 2006 | 10:21 AM
  #9  
macs406's Avatar
Thread Starter
On The Tree
 
Joined: Apr 2005
Posts: 129
Likes: 0
From: roy, utah
Default

any more help on intake piping size?
Reply
Old Apr 20, 2006 | 10:32 AM
  #10  
TECH Apprentice
iTrader: (2)
 
Joined: Aug 2005
Posts: 308
Likes: 0
From: Redding, Ca
Default

Originally Posted by macs406
any more help on intake piping size?

pro turo kits told me go by the inside diameter of the discharge side of the turbo. if that helps.

good luck
Reply



All times are GMT -5. The time now is 03:59 AM.