different map for catless setup?

SWP n Gold · 03-25-2006, 03:03 PM

On an upgraded turbo setup (18G, front mount, fuel sytem, catless TBE, accessport/custom dyno tune) would you need to tune the car twice (use two different maps) if you plan on running a high flow cat for the street, and a catless race pipe for the track? or could you just bolt on the race pipe for the track and thats it? (using the same map as the high flow cat setup) thanks for the help - kind of a newb question, but i havent seen an answer anywhere.
-Chris

* Registered users of the site do not see these ads.

Uncle Scotty · 03-25-2006, 09:11 PM

...yah...ya need 2 maps

crazymikie · 03-26-2006, 01:42 AM

I'd think you could run the catted map with the race pipe without problems.

A cat will cause some more exhaust gas back pressure, but if you tune for the catted scerario, conditions are better when running the race pipe, so I think you will be okay. Maybe you won't get every last bit of power out of the catless setup, but you should at least be safe.

MIke

fantomas · 03-26-2006, 01:51 AM

a "custom" tune will always be best. but catless, up to a certain HP will have minimal advantages over a hi-flow cat. some more searching on your part will show what HP range a catless system will have an advantage with.

SWP n Gold · 03-26-2006, 12:48 PM

Quote:

Originally Posted by fantomas

a "custom" tune will always be best. but catless, up to a certain HP will have minimal advantages over a hi-flow cat. some more searching on your part will show what HP range a catless system will have an advantage with.

thanks for the response crazymikie

fantomas - thats what ill be getting, a custom tune (on a dyno). but my question is would i need to switch maps for going to the track (when im catless), or can i just use my high flow cat map for when im catless without problems?
-Chris

03-25-2006, 03:03 PM	#1
SWP n Gold Scooby Guru Member#: 110783 Join Date: Mar 2006 Chapter/Region: Tri-State Location: Bethel, CT Vehicle: 2010 WRX Satin White Pearl	different map for catless setup? On an upgraded turbo setup (18G, front mount, fuel sytem, catless TBE, accessport/custom dyno tune) would you need to tune the car twice (use two different maps) if you plan on running a high flow cat for the street, and a catless race pipe for the track? or could you just bolt on the race pipe for the track and thats it? (using the same map as the high flow cat setup) thanks for the help - kind of a newb question, but i havent seen an answer anywhere. -Chris * Registered users of the site do not see these ads. Last edited by SWP n Gold; 03-26-2006 at 12:51 PM.

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Thinking about different components for SQ setup	narcispy	Car Audio, Video & Security	20	05-17-2010 07:31 PM
UTEC Maps for TXS setup	Cortez	UTEC	4	06-15-2008 11:42 AM
different maps for ap v2	ceecel	Newbies & FAQs	6	05-20-2008 10:37 PM
Need some map for this setup	njskatchmo	UTEC	25	04-10-2006 09:35 AM
link plus maps for special setup	erice1984	Engine Management & Tuning	0	01-20-2005 01:48 AM

03-25-2006, 09:11 PM	#2
Uncle Scotty NASIOC Supporter Member#: 16200 Join Date: Mar 2002 Vehicle: OK Houston we have an Uncle	...yah...ya need 2 maps

03-26-2006, 01:42 AM	#3
crazymikie Scooby Specialist Member#: 56321 Join Date: Mar 2004 Chapter/Region: NESIC Location: Framingham, MA Vehicle: 2008 Lexus IS-F	I'd think you could run the catted map with the race pipe without problems. A cat will cause some more exhaust gas back pressure, but if you tune for the catted scerario, conditions are better when running the race pipe, so I think you will be okay. Maybe you won't get every last bit of power out of the catless setup, but you should at least be safe. MIke

03-26-2006, 01:51 AM	#4
fantomas Scooby Specialist Member#: 87500 Join Date: May 2005 Chapter/Region: NESIC Location: ctsubaru.com Vehicle: 2012 Outback 2.5i P Graphite Gray	a "custom" tune will always be best. but catless, up to a certain HP will have minimal advantages over a hi-flow cat. some more searching on your part will show what HP range a catless system will have an advantage with.