intercooler piping vs turbo outlet size vs throttle body size - Miata Turbo Forum - Boost cars, acquire cats.

Welcome to Miataturbo.net   Members
 


DIY Turbo Discussion greddy on a 1.8? homebrew kit?

Reply
 
 
 
LinkBack Thread Tools
Old 01-30-2008, 04:54 PM   #1
Junior Member
Thread Starter
 
Join Date: Jul 2005
Location: Alexandria, VA
Posts: 125
Total Cats: 0
Default intercooler piping vs turbo outlet size vs throttle body size

So I'm still knee deep in my build. Now I have a question about my next piece I'm putting together: intercooler pipes. The turbo outlet is 2", but the intercooler inlet is 2.5". should I keep the pipe from the turbo to the IC 2" until the IC, or should i make it 2.5" as soon as possible after the turbo?

The intercooler outlet and the throttle body are both 2.5", so not an issue there, but if they were different sizes, what should be done?
MiaTurbo is offline   Reply With Quote
Old 01-30-2008, 04:56 PM   #2
Elite Member
iTrader: (30)
 
Join Date: Aug 2007
Location: Va Beach
Posts: 7,282
Total Cats: 0
Default

Just run 2" hotside and 2.5" cold side.
__________________
Best Car Insurance | Auto Protection Today | FREE Trade-In Quote
levnubhin is offline   Reply With Quote
Old 01-30-2008, 05:20 PM   #3
Junior Member
Thread Starter
 
Join Date: Jul 2005
Location: Alexandria, VA
Posts: 125
Total Cats: 0
Default

shoot.. my bad, I just saw the exact same subject on the next page. I searched for 'intercooler pipe' shoulda shearched for 'intercooler piping'.
MiaTurbo is offline   Reply With Quote
Old 01-30-2008, 05:40 PM   #4
Senior Member
iTrader: (2)
 
SamS's Avatar
 
Join Date: Jun 2006
Location: Wisconsin
Posts: 1,254
Total Cats: 7
Default

I have the same diameters, and since I bought a 2.5" ebay piping kit, I just bought a 2-2.5" reducer so it's basically all 2.5" as soon as it exits the compressor.
SamS is offline   Reply With Quote
Old 01-30-2008, 07:37 PM   #5
Elite Member
iTrader: (9)
 
Saml01's Avatar
 
Join Date: Jul 2007
Location: NYC
Posts: 5,730
Total Cats: 2
Default

Exactly what I plan to do, 2 inch hotside and 2.5 on the cold.
Saml01 is offline   Reply With Quote
Old 01-30-2008, 09:15 PM   #6
Elite Member
iTrader: (7)
 
samnavy's Avatar
 
Join Date: Apr 2006
Location: VIRGINIA BEACH, VA
Posts: 6,020
Total Cats: 175
Default

There will be zero power difference between 2" and 2.5" for your application. Routing the 2" piping on the hotside will be a lot easier than 2.5". The extra .5" makes big difference in clearance and fitment. Just get a 2"-2.5" coupler on the inlet to the intercooler.
samnavy is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Another Cast Manifold Corky Bell Prefabbed Turbo Kits 18 11-22-2016 10:01 PM
1994 Spec Miata Race Car SM/SM2/SSM For Sale Quinn Cars for sale/trade 6 10-23-2016 08:58 AM
Another Alternator thread ihiryu General Miata Chat 9 09-28-2015 11:22 AM
why is my car running like pewp? (tune/datalog) itsMikey MSPNP 3 09-28-2015 07:40 AM


Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -4. The time now is 01:45 PM.