Previous Thread
Next Thread
New Reply
Print Thread
Joined: Aug 2004
Posts: 169
hs2g
Member
hs2g
1997 Red Toyota Celica GT
Member
1997 Toyota Celica GT

Joined: Aug 2004
Posts: 169
St. Cloud, Minnesota
Apr 12, 9:29pm - #441256 
Exhaust on a turbo

I know that on a turbo car you need at least a 3" diameter pipe. Is the pipe gonna be from the catalyc converter then straight back? Or do you eliminate the cat. And I assume it has to be a straight pipe correct?

Joined: Feb 2005
Posts: 164
WhiteCeli
Member
WhiteCeli
Member

Joined: Feb 2005
Posts: 164
HI
Apr 12, 9:47pm - #441257 
it could be from either one. If you elminate your cat, you have more straighter airflow which makes your exhaust free flowing. Also by elminating your cat you gain power up top but lose some down low.

As for the exhaust, the minimum isn't 3". Sometimes that is too large for the amount of boost you are running. 2.5" is probably more ideal for running 6 psi. Higher boost is for 3" or maybe even 10 psi.

Joined: Aug 2004
Posts: 169
hs2g
Member
hs2g
1997 Red Toyota Celica GT
Member
1997 Toyota Celica GT

Joined: Aug 2004
Posts: 169
St. Cloud, Minnesota
Apr 12, 10:19pm - #441258 
I am probably running 5-8 PSI so a 2.5-2.75 pipe would be ideal right? I here its gonna pull a CEL if I remove the cat. So is it really must? Or can it still work?

Joined: Jun 2004
Posts: 1,337
celicadragon
Specialist
celicadragon

Specialist
2002 Toyota Celica

Joined: Jun 2004
Posts: 1,337
Pittsburgh, PA
Apr 13, 10:15am - #441259 
just get a 2.5 keep the cat


respect the gt-s
Join the conversation - Register Now or Log In to add your comment


Moderated by  isaac 

Member Spotlight
04silvergts
04silvergts
2004 Toyota Celica
Dallas, Texas

Posts: 166
Joined: July 2004
Show All Member Profiles 
Shout Box
Recent Topics
WTB: 00-02 amp bypass harness
by MJ00GTS. 04/18/2017 7:36 PM
Does not seem to be much activity for the 5th gens???
by Coop301. 04/18/2017 7:51 AM
Cold wet weather hesitation
by GTS25430. 04/17/2017 6:15 AM
00-02 premium 8spkr 2din gps solutions?
by MJ00GTS. 04/17/2017 2:24 AM
WTB: valve assy, vacuum switch
by hydraea. 04/15/2017 5:32 PM
500awhp project
by Salman. 04/14/2017 8:20 AM
Please help!!
by Toastbuster. 04/13/2017 11:49 PM
K&N air filter on Celica
by Toastbuster. 04/13/2017 5:16 PM
Customize Your Toyota Celica Privacy Policy · About · Contact
Privacy Policy · About · Contact
CelicaHobby.com is an independent Toyota Celica enthusiast website. CelicaHobby.com is not sponsored by or affiliated with Toyota Motor Sales, USA, Inc. in any way. The Toyota and Celica names and logos are trademarks owned by Toyota Motor Sales, USA, Inc.
© CelicaHobby.com, 2001-2017
Powered by UBB.threads™ PHP Forum Software 7.6.1
(Snapshot build 20170416)